DOCSLIB.ORG

Experiments at Cern in 1997

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Experiments at Cern in 1997 ORGANISATION EUROPEENNE POUR LA RECHERCHE NUCLEAIRE EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH i I Illlll !••!• II11 iiiP »'••! HB" •• "i" im'-' -- - *DE011795234* EXPERIMENTS AT CERN IN 1997 GENEVA ISSN 0259-093X NOVEMBER 1997 INiS-DE-0024 The picture on the cover page shows a central collision of a Lead projectile with a Lead nucleus as recorded by the four large volume Time Projection Chambers (TPCs) of the NA49 fixed target Experiment. The 150 GeV per nucleon 208Pb beam from the SPS (total energy 32.8 TeV), coming from the lower left in the picture, interacts with the target 80 cm in front of the first TPC. For momentum determination the first two TPCs are placed inside superconducting magnets of 1.5 and 1.1 T field strength. Over 80% of the 2000 charged particles created in central events produce tracks in the sensitive volume of the detectors. Their ionization drifts up to the readout chambers, shown as small rectangles, on the top of the detectors. A total of 182,000 readout pads record 512 time samples each of the drifting ionization. Space points, shown here is red, are reconstructed into tracks, purple, and matched over the different TPCs to global tracks, yellow, of up to 14 m length with an accuracy better than 200 microns. The specific ionization for long tracks is determined with better than 4% resolution, permitting particle identification in the relativistic rise. The aim of the experiment is to study the non-perturbative QCD processes leading to the production and decay of the large partonic systems formed in central Pb+Pb collisions, reaching energy densities of 20 times normal nuclear density for a brief instant of time. li INTRODUCTION This book summarises the current experimental programme at CERN. The experiments listed are taking place at one of the following machines: the Large Electron Positron Collider (LEP), the Super Proton Synchrotron (SPS), the 28 GeV Proton Synchrotron (PS), including the Antiproton Decelerator(AD) for slow antiprotons and the ISOLDE facility for short-lived ions. The three experiments now approved for installation at the Large Hadron Collider (LHC) and the R&D projects aimed at the development of new defector technologies and data acquisition systems for the LHC experiments are also listed. ~ The experimental programme is established by the Director-General of CERN on the advice of the Research Board. The latter acts on recommendations made by the Experiment Committees which are the SPSC, the LEPC, the ISC and the LHCC. The composition of the Research Board and of the Experiment Committees as of 1st November 1997 is given in Tables 1-5. Schematic layouts of the experimental areas and of the beam lines at the different machines appear at the beginning of the report. Each experiment, with the exception of the LEP and LHC experiments, is identified by a code consisting of a few characters (denoting the machine and the area) and a serial number. For some experiments a mnemonic has been adopted to facilitate its identification. The 1997 schedules for the experiments at the accelerators are also included. For each experiment there is a brief description (usually with a figure) together with the list of the participants and of the collaborating institutes. The names of the scientific spokesman and contactman, the approval date(s) and references to the relevant Committee documents are also given. The status of the experiments (preparation/data taking/completed) and of the R&D projects (in progress/completed) corresponds to the situation at the end of 1997. The "completed" status means that data-taking has finished but since the analysis will still be going on, an experiment continues to appear in this book for another two years beyond the completion date. The list of experiments approved (or extended) since January 1994 with approval and completion dates can be found in the last pages, as well as the list of the Universities, Research Institutes, and Industrial Firms in alphabetical order by city (Table 1) and by country (Table 2). The complete list of experiments going back to 1974 (as appeared in earlier editions ) is still available on request. The information concerning experiments is provided by the teams themselves (Spokesmen and Contactmen), it is updated by them once a year and is given under their responsibility. This book is not an official CERN document; the Minutes of the Research Board and of the Experiment Committees are the appropriate official references. Mrs Maire Doran deserves all the credit for collecting and preparing the material for this year's book and since the work is to be taken over by others, it is also the moment to thank her warmly for the care and devotion she has given to all of the nine editions of the Grey Book which have been published since she was first asked to take charge of it's preparation. Until the new organisation for the Book has been put in place, requests for further information, for comments and for possible corrections should be sent to myself. Brian Powell. in CONTENTS INTRODUCTION iii Table 1. Membership of the Research Board 1 Table 2. Membership of the SPSC 2 Table 3. Membership of the LEPC 3 Table 4. Membership of the ISC 4 Table 5. Membership of the LHCC 5 List of SPS Beams North Area 6 West Area 7 Layout of SPS Experimental Areas 8 West Area 9 North Area 10 1997 SPS fixed Target Programme 11 1997 SPS Schedule 12 List of PS Beams East Area 13 Layout of PS Accelerator Complex 14 East Area 15 1997 PS Fixed Target Programme 16 1997 PS Complex Schedule 17 Layout of LEP Experiments 18 1997 LEP Schedule 19 Layout of ISOLDE Experimental Area 20 ISOLDE Beams 21 1997 ISOLDE Schedule 22 Current experiments listed in this book 23 Status of the SPS Programme 33 Status of the PS Programme 131 Status of the AD Programme 175 Status of the ISOLDE Programme 189 Status of the LEP Programme 309 Status of the LHC Programme 337 Status of the R&D Programme 377 List of all experiments approved since January 1994 461 List of all Participating Universities/Research 491 Institutes/Industrial Firms since 1974 IV TABLE 1 MembershiD of the Research Board (1997) CERN C.H. Llewellyn Smith (Chairman) Directorate L. Evans L.Foa K. Hiibner H. Wenninger Experiments Committees E. Iarocci (LHCC) B. D'Almagne (SPSC) P. Zerwas (LEPC) A. Richter (ISC) Leaders of the G. Goggi (PPE) Research & Accelerator D.J. Simon (PS) Divisions A. De Rujula (TH) K.-H. Kissler (SL) M. Turala (ECP) J.May (IT) J.P. Gourber (LHC) Outside Members C. Jarlskog (Univ. of Lund) R. Klanner (DESY Hamburg) Board Secretary Massimiliano Ferro-Luzzi Staff Association Observer S. Weisz The following Physics Co-ordinators are present during discussion of the relevant agenda points: Physics Co-ordinators P. Wells (LEP) E. Tsesmelis (PS/SPS) D. Forkel-Wirth (ISOLDE) TABLE 2 Membership of the SPS and PS Experiments Committee (1997) (SPSC) B. D'Almagne (Chairman) D. Drijard (Secretary) Members P. Bagnaia J.P. Blaizot W. Braunschweig M. Cavalli-Sforza B. Gavela K. Green J.-F. Grivaz K. Jakobs B. Koene K. Königsmann M. Pennington L. Ristori J. Stachel M. Tyndel G. Wilquet A. Zalewska Ex-off icio Members L. Foà G.Goggi P. Grafström K. Hübner D. Jacobs K.-H. Kissler R. Landua C.H. Llewellyn Smith M. Neubert J.-P. Riunaud D.J. Simon M. Turala H. Wenninger E. Tsesmelis (SPS and PS Co-ordinator) TABLE 3 Membership of the LEP Experiments Committee (1997) (LEPC) Zerwas, P. (Chairman) J. Kirkby (Secretary) Members S. Bethke J. Dainton J. Drees F. Gasparini Per. O. Hulth W. Lohrmann T. Lohse R. Marshall T. Müller S. Pokorski Y. Sirois I. Videau Ex-off icio Members L. Foà G. Goggi K. Hübner G. Kantardjian K.-H. Kissler C.H. Llewellyn Smith M. Mangano J.May S. Myers J. Panman M. Turala H. Wenninger P. Wells (LEP Co-ordinator) TABLE 4 Membership of the ISOLDE Committee (1997) (ISO A. Richter (Chairman) J. Eades (Secretary) Members C.A.J. Ammerlaan D.Fick W. Gelletly D.Habs G. Sletten F.-K. Thielemann Ex-off icio Members G. Bollen L. Foa G.Goggi K. Peach H. Ravn J.-P. Ruinaud C.H. Llewellyn Smith D. Simon D. Forkel-Wirth (ISOLDE Co-ordinator) TABLE 5 Membership of the LHC Experiments Committee (1997) LHCC E. Iarocci (Chairman) D.M. Sendall (Secretary) Members B. Adeva J. Carr J.J. Engelen A. Ereditato B. Foster D.L. Hartills M. Kasmann R.D. Kephart H. Kolanoski S. Komamiya M. Mazzucato N.A. McCubbin A.L. Read A. Rostovtsev A. Schwarz P. Sharp M. Spiro Ex-officio Members G. Altarelli L. Evans L. Foà G. Goggi C.H. Llewellyn Smith J.May K. Potter G. Rolandi M. Turala H. Wenninger E. Tsesmelis (SPS/PS Coordinator) LIST OF SPS BEAMS 1A. BEAMS IN THE NORTH AREA (Situation for 1997) Beam Maximum Intensity of beam for 1012 Beam name momentum incident protons at 450 GeV/c Type (GeV/c) H2 400 91077i+ at 200GeV/c 1) high energy hadron or 3107 n- at 200 GeV/c electron beam (also used ! 6 ± i 410 e at 150GeV/c as test beam); i -105 Pb at 158GeV/A * 2) heavy ion beam H4 375 ~ n+s] fluxes similar to H2 1) high energy hadron or e+ / electron beam; 450 ~107pat450GeV/c 2) attenuated primary proton beam; -5X106 Pbatl58GeV/A* 3) heavy ion beam H6 205 1 108 n+ at 150 GeV/c medium energy hadron or 4107 % at 150GeV/c electron beam, also used to produce tertiary test beams H8 450 -106 p at 450GeV/c 1) attenuated primary p or 2 108 n+ at 200 GeV/c high energy hadron or 7107 re' at 200GeV/c electron beam; also used for tertiary test beams ~106 Pb at 158 GeV/A * 2) heavy ion beam M2 225 2 107 n+ at +100 GeV/c high intensity (polarized) 3106 \T at -200GeV/c muonbeam P41/P61 450 <10npat450GeV/c primary beam, used to transport: 1) attenuated primary proton beam from T4/T6, <5 107Pbatl58GeV/A * 2) high intensity heavy ion beam via T6 to high intensity area ECN3 P42 450 1.51012pat450GeV/c primary beam from T4, used to 7 + K12 -^~110 K£ (>50GeV/c) produce simultaneous K° and Ksj 3.0107pat450GeV/c beam, (alternate with P41/P61).
Load more

Recommended publications
  • Pioneering Project Research Activity Report 新領域開拓課題 研究業績報告書
    Pioneering Project Research Activity Report 新領域開拓課題 研究業績報告書 Fundamental Principles Underlying the Hierarchy of Matter 物質階層原理 Lead Researcher: Reizo KATO 研究代表者：加藤 礼三 From April 2017 to March 2020 Heterogeneity at Materials Interfaces ヘテロ界面 Lead Researcher: Yousoo Kim 研究代表者：金 有洙 From April 2018 to March 2020 RIKEN May 2020 Contents I. Outline 1 II. Research Achievements and Future Prospects 65 III. Research Highlights 85 IV. Reference Data 139 Outline －1－ / Outline of two projects Fundamental Principles Underlying the Hierarchy of Matter: A Comprehensive Experimental Study / • Outline of the Project This five-year project lead by Dr. R. Kato is the collaborative effort of eight laboratories, in which we treat the hierarchy of matter from hadrons to biomolecules with three underlying and interconnected key concepts: interaction, excitation, and heterogeneity. The project consists of experimental research conducted using cutting-edge technologies, including lasers, signal processing and data acquisition, and particle beams at RIKEN RI Beam Factory (RIBF) and RIKEN Rutherford Appleton Laboratory (RAL). • Physical and chemical views of matter lead to major discoveries Although this project is based on the physics and chemistry of non-living systems, we constantly keep all types of matter, including living matter, in our mind. The importance of analyzing matter from physical and chemical points of view was demonstrated in the case of DNA. The Watson-Crick model of DNA was developed based on the X-ray diffraction, which is a physical measurement. The key feature of this model is the hydrogen bonding that occurs between DNA base pairs. Watson and Crick learned about hydrogen bonding in the renowned book “The Nature of the Chemical Bond,” written by their competitor, L.
    [Show full text]
  • A Bridge Between Nuclear and Particle Physics
    Journal of Physics: Conference Series PAPER • OPEN ACCESS Related content - What’s Next for Particle Physics?: Modern hadron spectroscopy: a bridge between Introduction M White nuclear and particle physics. - Light Hadron Spectroscopy at BESIII Jifeng Hu and BESIII Collaboration To cite this article: A. P. Szczepaniak 2018 J. Phys.: Conf. Ser. 1014 012017 - Progress in light hadron spectroscopy at BESIII W C Yan View the article online for updates and enhancements. This content was downloaded from IP address 131.169.5.251 on 15/05/2018 at 23:01 International Workshop "Nuclear Reactions on Nucleons and Nuclei" IOP Publishing IOP Conf. Series: Journal of Physics: Conf. Series 1014 (2018) 012017 doi:10.1088/1742-6596/1014/1/012017 Modern hadron spectroscopy: a bridge between nuclear and particle physics. A. P. Szczepaniak Physics Department, Indiana University, Bloomington, IN 47405, USA, Center for Exploration of Energy and Matter, Indiana University, Bloomington, IN 47403, USA, Theory Center, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA. E-mail: [email protected] Abstract. In this talk I discuss aspects of hadron physics, which soon are expected to shed new light on the fundamental QCD phenomena. In the analysis of hadron reactions and their propertieds I emphasize similarities to the nuclear many body problem. 1. Introduction The vast majority of nuclear phenomena can be understood using protons and neutrons as elementary constituents and the nonrelativistic interactions among them. On the other hand, Quantum Chromodynamics (QCD), which is the underlying theory of nuclear forces, describes the relativistic quarks and gluons as the fundamental degrees of freedom.
    [Show full text]
  • STRANGE MESON SPECTROSCOPY in Km and K$ at 11 Gev/C and CHERENKOV RING IMAGING at SLD *
    SLAC-409 UC-414 (E/I) STRANGE MESON SPECTROSCOPY IN Km AND K$ AT 11 GeV/c AND CHERENKOV RING IMAGING AT SLD * Youngjoon Kwon Stanford Linear Accelerator Center Stanford University Stanford, CA 94309 January 1993 Prepared for the Department of Energy uncer contract number DE-AC03-76SF005 15 Printed in the United States of America. Available from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Road, Springfield, Virginia 22161. * Ph.D. thesis ii Abstract This thesis consists of two independent parts; development of Cherenkov Ring Imaging Detector (GRID) system and analysis of high-statistics data of strange meson reactions from the LASS spectrometer. Part I: The CIUD system is devoted to charged particle identification in the SLAC Large Detector (SLD) to study e+e- collisions at ,/Z = mzo. By measuring the angles of emission of the Cherenkov photons inside liquid and gaseous radiators, r/K/p separation will be achieved up to N 30 GeV/c. The signals from CRID are read in three coordinates, one of which is measured by charge-division technique. To obtain a N 1% spatial resolution in the charge- division, low-noise CRID preamplifier prototypes were developed and tested re- sulting in < 1000 electrons noise for an average photoelectron signal with 2 x lo5 gain. To help ensure the long-term stability of CRID operation at high efficiency, a comprehensive monitoring and control system was developed. This system contin- uously monitors and/or controls various operating quantities such as temperatures, pressures, and flows, mixing and purity of the various fluids.
    [Show full text]
  • Snowmass 2021 Letter of Interest: Hadron Spectroscopy at Belle II
    Snowmass 2021 Letter of Interest: Hadron Spectroscopy at Belle II on behalf of the U.S. Belle II Collaboration D. M. Asner1, Sw. Banerjee2, J. V. Bennett3, G. Bonvicini4, R. A. Briere5, T. E. Browder6, D. N. Brown2, C. Chen7, D. Cinabro4, J. Cochran7, L. M. Cremaldi3, A. Di Canto1, K. Flood6, B. G. Fulsom8, R. Godang9, W. W. Jacobs10, D. E. Jaffe1, K. Kinoshita11, R. Kroeger3, R. Kulasiri12, P. J. Laycock1, K. A. Nishimura6, T. K. Pedlar13, L. E. Piilonen14, S. Prell7, C. Rosenfeld15, D. A. Sanders3, V. Savinov16, A. J. Schwartz11, J. Strube8, D. J. Summers3, S. E. Vahsen6, G. S. Varner6, A. Vossen17, L. Wood8, and J. Yelton18 1Brookhaven National Laboratory, Upton, New York 11973 2University of Louisville, Louisville, Kentucky 40292 3University of Mississippi, University, Mississippi 38677 4Wayne State University, Detroit, Michigan 48202 5Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 6University of Hawaii, Honolulu, Hawaii 96822 7Iowa State University, Ames, Iowa 50011 8Pacific Northwest National Laboratory, Richland, Washington 99352 9University of South Alabama, Mobile, Alabama 36688 10Indiana University, Bloomington, Indiana 47408 11University of Cincinnati, Cincinnati, Ohio 45221 12Kennesaw State University, Kennesaw, Georgia 30144 13Luther College, Decorah, Iowa 52101 14Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 15University of South Carolina, Columbia, South Carolina 29208 16University of Pittsburgh, Pittsburgh, Pennsylvania 15260 17Duke University, Durham, North Carolina 27708 18University of Florida, Gainesville, Florida 32611 Corresponding Author: B. G. Fulsom (Pacific Northwest National Laboratory), [email protected] Thematic Area(s): (RF07) Hadron Spectroscopy 1 Abstract: The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is a substantial upgrade of the B factory facility at KEK in Tsukuba, Japan.
    [Show full text]
  • Hadron Spectroscopy, Baryon Spectroscopy and Meson
    Integrative Molecular Medicine Image ISSN: 2056-6360 Hadron spectroscopy, baryon spectroscopy and meson spectroscopy comparative study on malignant and benign human cancer cells and tissues under synchrotron radiation Alireza Heidari* Faculty of Chemistry, California South University, 14731 Comet St. Irvine, CA 92604, USA In the current study, we have experimentally and comparatively investigated and compared malignant human cancer cells and tissues before and after irradiating of synchrotron radiation using Hadron spectroscopy, Baryon spectroscopy and Meson spectroscopy. In the current study, we have experimentally and comparatively investigated and compared malignant human cancer cells and tissues before and after irradiating of synchrotron radiation using Hadron spectroscopy, Baryon spectroscopy and Meson spectroscopy. It is clear that malignant human cancer cells and tissues have gradually transformed to benign human cancer cells and tissues under synchrotron radiation with the passing of time (Figures 1-3) [1-198]. It can be concluded that malignant human cancer cells and tissues have gradually transformed to benign human cancer cells and tissues under synchrotron radiation with the passing of time (Figures 1-3) [1- 198]. Figure 2. Baryon spectroscopy analysis of malignant human cancer cells and tissues (a) before and (b) after irradiating of synchrotron radiation in transformation process to benign human cancer cells and tissues with the passing of time [1-198] *Correspondence to: Alireza Heidari, Faculty of Chemistry, California
    [Show full text]
  • Time–Resolved Resonance FT–IR and Raman Spectroscopy And
    Global Imaging Insights Image ISSN: 2399-7397 Time–resolved resonance FT–IR and raman spectroscopy and density functional theory investigation of vibronic– mode coupling structure in vibrational spectra of nano- polypeptide macromolecule beyond the multi–dimensional franck–condon integrals approximation and density matrix method Alireza Heidari1,2*, Jennifer Esposito1 and Angela Caissutti1 1Faculty of Chemistry, California South University, 14731 Comet St. Irvine, CA 92604, USA 2American International Standards Institute, Irvine, CA 3800, USA Abstract A macromolecule is a very large molecule, such as protein, commonly created by the polymerization of smaller subunits (monomers). They are typically composed of thousands of atoms or more. The most common macromolecules in biochemistry are biopolymers (nucleic acids, proteins, carbohydrates and lipids) and large non–polymeric molecules (such as lipids and macrocycles). Synthetic macromolecules include common plastics and synthetic fibers as well as experimental materials such as carbon nanotubes. Parameters such as FT –IR and Raman vibrational wavelengths and intensities for single crystal Nano polypeptide macromolecule are calculated using density functional theory and were compared with empirical results. The investigation about vibrational spectrum of cycle dimers in crystal with carboxyl groups from each molecule of acid was shown that it leads to create Hydrogen bonds for adjacent molecules. The current study aimed to investigate the possibility of simulating the empirical values. Analysis of vibrational spectrum of Nano polypeptide macromolecule is performed based on theoretical simulation and FT–IR empirical spectrum and Raman empirical spectrum using density functional theory in levels of HF/6–31G*, HF/6–31++G**, MP2/6–31G, MP2/6– 31++G**, BLYP/6–31G, BLYP/6–31++G**, B3LYP/6–31G and B3LYP6–31–HEG**.
    [Show full text]
  • Hadron Spectroscopyspectroscopy Inin Diffractivediffractive Andand Centralcentral Productionproduction Processesprocesses Atat COMPASSCOMPASS
    HadronHadron spectroscopyspectroscopy inin diffractivediffractive andand centralcentral productionproduction processesprocesses atat COMPASSCOMPASS Prometeusz Jasinski for the COMPASS collaboration - Diffraction 2010 - Beyond the qq model Constituent quark model QCD prediction: meson states beyond Color neutral qq systems Hybrids: qqg Quantum numbers (IG) JPC Tetraquarks: (qq)(qq) P=(-1)L+1 C=(-1)L+S G=(-1)I+L+1 → “Spin exotics” JPC multiplets: 0++, 0-+, 1--, 1+-, 1++, 2++, … -- +- -+ +- -+ Forbidden: 0 , 0 , 1 , 2 , 3 , ... Glueballs: gg, ggg Production mechanisms Diffractive Scattering Central Production The COMPASS Spectrometer 2008/2009 The COMPASS Spectrometer 2008/2009 Beam properties Beam properties Beam energy 190 GeV/c² Beam energy 190 GeV/c² Beam composition: - - Beam composition: p -: K -: p = 0.97 : 0.024 : 0.008 p : K : p = 0.97 : 0.024 : 0.008 or + + or p +: K +: p = 0.24 : 0.014 : 0.75 p : K : p = 0.24 : 0.014 : 0.75 Up to 5 x 10⁶ particles/s Up to 5 x 10⁶ particles/s beam The COMPASS Spectrometer 2008/2009 CEDARCEDAR detectors detectors for for beambeam particle particle identification identification The COMPASS Spectrometer 2008/2009 CEDARCEDAR detectors detectors for for beambeam particle particle identification identification Cerenkov Differential counter with Achromatic Ring Focus The COMPASS Spectrometer 2008/2009 RecoilRecoil proton proton detecto detectorr aroundaround 4040 cm cm long long lH2 lH2 target target oror ArrayArray of of solid solid state state discs discs The COMPASS Spectrometer 2008/2009 The COMPASS Spectrometer 2008/2009 Further important upgrades ECALECAL Laser Laser monitoringmonitoring system, system, radhard glass, Sandwich veto radhard glass, Sandwich veto shashlikshashlik modules modules matchingmatching the the spectrometer spectrometer acceptanceacceptance RICHRICH upgrade in 2006 SeveralSeveral tracking tracking upgrade in 2006 detectorsdetectors upgraded: upgraded: coldcold Silicon Silicon stations, stations, PixelPixel GEMs, GEMs, Micromegas,Micromegas, ..
    [Show full text]
  • Book of Abstracts
    The 33rd International Symposium on Lattice Field Theory (Lattice 2015) Tuesday 14 July 2015 - Saturday 18 July 2015 Kobe International Conference Center Book of Abstracts Contents Recent progress on chiral symmetry breaking in QCD .................... 1 Determining the order of chiral phase transition in QCD from conformal bootstrap . 1 Numerical evaluation of QED contribution to lepton g-2 .................. 1 Lattice QCD moments - g − 2 and NEDM - .......................... 2 Hadronic Light by Light Contributions to the Muon Anomalous Magnetic Moment With Near Physical Pions ..................................... 2 The curvature of the chiral phase transition line at small values of the quark chemical potentials .......................................... 2 Walking and conformal dynamics in many flavor QCD ................... 3 Pion-pion interaction from N_f = 2+1 simulations using the stochastic LapH method . 3 A status update on the ALPHA collaboration’s project to determine the Lambda-parameter in 3-flavour QCD ...................................... 4 Algorithmic improvements for weak coupling simulations of domain wall fermions . 4 zMobius and other recent developments on Domain Wall Fermions ............ 5 Prospects and status of quark mass renormalization in three-flavour QCD . 5 Topological observables in many-flavour QCD ........................ 5 On calculating disconnected-type hadronic light-by-light scattering diagrams from lattice QCD ............................................. 6 The curvature of the crossover line in the (T, mu)-phase diagram ofQCD . 6 Large volume calculation of pion-pion scattering phase shifts with the stochastic LapH method on an Nf = 2 + 1 anisotropic clover lattice ................... 7 K-pi scattering lengths from physical point ensembles .................... 7 Fermionic twisted boundary conditions with reweighting method ............. 8 SU(3) gauge theory with four degenerate fundamental fermions on the lattice .
    [Show full text]
  • Okadaic Acid Time-Resolved Absorption and Resonance FT-IR and Raman Biospectroscopy © 2019 Heidari A, Et Al
    InternationalJournal of VIBGYOR Analytical and Bioanalytical Methods Okadaic Acid Time-Resolved Absorption and Resonance FT-IR and Raman Biospectroscopy and Density Functional Theory (DFT) Investigation of Vibronic-Mode Original Article: Open Access Coupling Structure in Vibrational Spectra Analysis Alireza Heidari1,2*, Jennifer Esposito1 and Angela Caissutti1 1Faculty of Chemistry, California South University, USA 2American International Standards Institute, USA Abstract Okadaic acid, C44H68O13, is a toxin produced by several species of dinoflagellates, and is known to accumulate in both marine sponges and shellfish. One of the primary causes of diarrhetic shellfish poisoning, Okadaic acid is a potent inhibitor of specific protein phosphatases and is known to have a variety of negative effects on cells. A polyketide, polyether derivative of a C38 fatty acid, Okadaic acid and other members of its family have shined light upon many biological processes both with respect to dinoflagellate polyketide synthesis as well as the role of protein phosphatases in cell growth. Parameters such as FT -IR and Raman vibrational wavelengths and intensities for single crystal Okadaic Acid are calculated using density functional theory and were compared with empirical results. The investigation about vibrational spectrum of cycle dimers in crystal with carboxyl groups from each molecule of acid was shown that it leads to create Hydrogen bonds for adjacent molecules. The current study aimed to investigate the possibility of simulating the empirical values. Analysis of vibrational spectrum of Okadaic Acid is performed based on theoretical simulation and FT-IR empirical spectrum and Raman empirical spectrum using density functional theory in levels of HF/6-31G*, HF/6-31++G**, MP2/6-31G, MP2/6-31++G**, BLYP/6-31G, BLYP/6-31++G**, B3LYP/6-31G and B3LYP6-31-HEG**.
    [Show full text]
  • Hadron Spectroscopy at Gluex and Beyond (1) Justin Stevens Preliminaries
    Hadron Spectroscopy at GlueX and Beyond (1) Justin Stevens Preliminaries Goal: A self-contained introduction to hadron spectroscopy and an overview of recent excitement in the field Outline: Introduction to QCD and hadron spectroscopy Why study spectroscopy through QCD? Classification of hadrons Heavy quark spectroscopy: “The XYZ story” Light quark spectroscopy (tomorrow and Wednesday) HUGS 2018 Justin Stevens, "2 Standard Model Coupling 10-6 1/137 1 Strength: Higgs Boson Higgs H Spin 1 Spin 1/2 HUGS 2018 Justin Stevens, "3 Standard Model Coupling 10-6 1/137 1 Strength: Higgs Boson Higgs H Spin 1 Spin 1/2 HUGS 2018 Justin Stevens, "4 Quarks and hadrons Proposed to explain proton structure and properties of other states observed at the time! proton = uud u neutron = udd u | i d | i d J =1/2 u J =1/2 d Color charge analogous to electric charge: atoms are electrically neutral and hadrons are color neutral (or color singlets)! Another flavor of “light” quarks: strange u d u s ⇡+ = ud¯ K+ = us¯ | i HUGS 2018 ↵ Justin Stevens, "5 Quarks and hadrons Proposed to explain proton structure and properties of other states observed at the time proton = uud u ∆++ = uuu u | i d | i u J =1/2 u J =3/2 u Color charge analogous to electric charge: atoms are electrically neutral and hadrons are color neutral (or color singlets) Another flavor of “light” quarks: strange u d u s ⇡+ = ud¯ K+ = us¯ | i HUGS 2018 ↵ Justin Stevens, "6 Quarks and hadrons Proposed to explain proton structure and properties of other states observed at the time proton = uud u ∆++ =
    [Show full text]
  • Quark Matter Formation and Heavy Ion Collisions
    QUARK MATTER FORMATION AND HEAVY ION COLLISIONS A general review and status report edited by M. JACOB CERN, Geneva, Switzerland and J. TRAN THANH VAN Université de Paris-Sud, Orsay, France With contributions by: M. FAESSLER, CERN; J. KAPUSTA, Los Alamos and CERN; L. McLERRAN, Univ. of Washington and Helsinki; J. RAFELSKI, Frankfurt; H. SATZ, Bielefeld; and W. WILLIS, CERN 1 NORTH-HOLLAND PUBLISHING COMPANY-AMSTERDAM PHYSICS REPORTS (Review Section of Physics Letters) 88, No. 5 (1982) 321—413. NORTH-HOLLAND PUBLISHING COMPANY QUARK MATFER FORMATION AND HEAVY ION COLLISIONS A general review and status report edited by: M. JACOB CERN, Geneva, Switzerland and J. TRAN THANH VAN* Université de Paris-Sud, Orsay, France Contents: 1. M. JACOB: Introduction 325 References 329 2. J. RAFELSKI: Formation and observation of the quark-gluon plasma 331 2.1. Overview 331 2.2. Thermodynamics of interacting hadrons 332 2.3. OCD and the quark-gluon plasma 338 2.4. Phase transition from the hadronic gas to the quark-gluon plasma 341 2.5. Strangeness in the plasma 343 2.6. Summary and outlook 345 References 346 3. H. SATZ: Critical behaviourin finite temperature QCD 349 3.1. Introduction 349 3.2. ~Fwo-phasephenomenology 350 3.3. Yang—Mills thermodynamics on the lattice 352 3.4. QCD thermodynamics with quarks 357 3.5. Deconfinement and chiral symmetry restoration 360 3.6. Phase transition parameters 362 3.7. Conclusions 363 References 363 Single orders for this issue PHYSICS REPORTS (Review Section of Physics Letters) 88, No. 5 (1982) 321—413. Copies of this issue may be obtained at the price given below.
    [Show full text]
  • Institut Für Kernphysik Jahresbericht 2004/2005
    Gebäude der Physik INSTITUT FÜR KERNPHYSIK am Fachbereich Physik der Johann Wolfgang Goethe-Universität Frankfurt am Main Jahresbericht 2004/2005 IKF-65 INHALTSVERZEICHNIS Vorwort 5 Forschungsschwerpunkte 7 Arbeitsgruppen 9 Wissenschaftliche Arbeiten Kernphysik 11 Atomphysik 27 Materialforschung 63 Instrumentelle Entwicklungen 79 Dokumentation 109 VORWORT Der letzte Jahresbericht erschien im Frühjahr 2004. Seitdem Studenten nieder. Ich möchte deshalb auch an dieser Stelle hat sich das Institut für Kernphysik wissenschaftlich, perso- der hessischen Landesregierung, der Stadt Frankfurt, dem nell und räumlich in einmaliger Weise weiterentwickelt. Die Präsidium und der Planungsabteilung der Goethe-Universität, Berufung von drei neuen Professoren hat sowohl die bishe- dem Hessischen-Bau-Management und den Architekten dafür rigen Forschungsaktivitäten verstärkt als auch neue etabliert. danken, dass sie den „Neubau der Physik“ so erfolgreich und Die Atomphysik wurde durch die „Helmholtz- Nachwuchs- eindrucksvoll realisiert haben. gruppe“ von Dr. Torsten Weber bereichert. Am anderen Ende der Energieskala hat Prof. Harald Appelshäuser die Nachfolge In den vergangen zwei Jahren sind die Professoren Horst von Prof. Reinhard Stock angetreten. Damit ist die Kontinuität Schmidt-Böcking und Reinhard Stock in Pension gegangen. auf dem Gebiet der Schwerionenphysik bei der höchsten En- Beide haben die wissenschaftliche Arbeit und damit das Re- ergie (ab 2007 mit dem ALICE Detektor am LHC) gesichert. nommee des Instituts lange entscheidend geprägt. Dafür und Prof. Appelshäuser hat die von JProf. Christoph Blume be- für die Bereitschaft dem IKF auch in Zukunft mit Rat und Tat gonnene Konstruktion von Übergangsstrahlungsdetektormo- zur Seite zu stehen, danken wir ihnen herzlich.Weitere langjäh- dulen für ALICE zu einem Gross- und Entwicklungsprojekt rige Mitarbeiter des Instituts sind in den wohlverdienten Ruhe- erweitert.
    [Show full text]