Thesis, We Take Σψ Directly from Experimental Data
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Effective Field Theories for Quarkonium
Effective Field Theories for Quarkonium recent progress Antonio Vairo Technische Universitat¨ Munchen¨ Outline 1. Scales and EFTs for quarkonium at zero and finite temperature 2.1 Static energy at zero temperature 2.2 Charmonium radiative transitions 2.3 Bottomoniun thermal width 3. Conclusions Scales and EFTs Scales Quarkonia, i.e. heavy quark-antiquark bound states, are systems characterized by hierarchies of energy scales. These hierarchies allow systematic studies. They follow from the quark mass M being the largest scale in the system: • M ≫ p • M ≫ ΛQCD • M ≫ T ≫ other thermal scales The non-relativistic expansion • M ≫ p implies that quarkonia are non-relativistic and characterized by the hierarchy of scales typical of a non-relativistic bound state: M ≫ p ∼ 1/r ∼ Mv ≫ E ∼ Mv2 The hierarchy of non-relativistic scales makes the very difference of quarkonia with heavy-light mesons, which are just characterized by the two scales M and ΛQCD. Systematic expansions in the small heavy-quark velocity v may be implemented at the Lagrangian level by constructing suitable effective field theories (EFTs). ◦ Brambilla Pineda Soto Vairo RMP 77 (2004) 1423 Non-relativistic Effective Field Theories LONG−RANGE SHORT−RANGE Caswell Lepage PLB 167(86)437 QUARKONIUM QUARKONIUM / QED ◦ ◦ Lepage Thacker NP PS 4(88)199 QCD/QED ◦ Bodwin et al PRD 51(95)1125, ... M perturbative matching perturbative matching ◦ Pineda Soto PLB 420(98)391 µ ◦ Pineda Soto NP PS 64(98)428 ◦ Brambilla et al PRD 60(99)091502 Mv NRQCD/NRQED ◦ Brambilla et al NPB 566(00)275 ◦ Kniehl et al NPB 563(99)200 µ ◦ Luke Manohar PRD 55(97)4129 ◦ Luke Savage PRD 57(98)413 2 non−perturbative perturbative matching Mv matching ◦ Grinstein Rothstein PRD 57(98)78 ◦ Labelle PRD 58(98)093013 ◦ Griesshammer NPB 579(00)313 pNRQCD/pNRQED ◦ Luke et al PRD 61(00)074025 ◦ Hoang Stewart PRD 67(03)114020, .. -
Quarkonium Interactions in QCD1
CERN-TH/95-342 BI-TP 95/41 Quarkonium Interactions in QCD1 D. KHARZEEV Theory Division, CERN, CH-1211 Geneva, Switzerland and Fakult¨at f¨ur Physik, Universit¨at Bielefeld, D-33501 Bielefeld, Germany CONTENTS 1. Introduction 1.1 Preview 1.2 QCD atoms in external fields 2. Operator Product Expansion for Quarkonium Interactions 2.1 General idea 2.2 Wilson coefficients 2.3 Sum rules 2.4 Absorption cross sections 3. Scale Anomaly, Chiral Symmetry and Low-Energy Theorems 3.1 Scale anomaly and quarkonium interactions 3.2 Low energy theorem for quarkonium interactions with pions 3.3 The phase of the scattering amplitude 4. Quarkonium Interactions in Matter 4.1 Nuclear matter 4.2 Hadron gas 4.3 Deconfined matter 5. Conclusions and Outlook 1Presented at the Enrico Fermi International School of Physics on “Selected Topics in Non-Perturbative QCD”, Varenna, Italy, June 1995; to appear in the Proceedings. 1 Introduction 1.1 Preview Heavy quarkonia have proved to be extremely useful for understanding QCD. The large mass of heavy quarks allows a perturbation theory analysis of quarkonium decays [1] (see [2] for a recent review). Perturbation theory also provides a rea- sonable first approximation to the correlation functions of quarkonium currents; deviations from the predictions of perturbation theory can therefore be used to infer an information about the nature of non-perturbative effects. This program was first realized at the end of the seventies [3]; it turned out to be one of the first steps towards a quantitative understanding of the QCD vacuum. The natural next step is to use heavy quarkonia to probe the properties of excited QCD vacuum, which may be produced in relativistic heavy ion collisions; this was proposed a decade ago [4]. -
LD2668T41961L36.Pdf
CARBC^IA-CONTAINIMG CGHFOUKDS PRODUCED BI THE PILE-SEOTRQH IRRADIATIGH OP CYAHOGUANIDIIE THOMAS WILLIAM LAPP * B.A., Co* College, 1959 A MAS TBI'S THESIS . submitted in partial fulfillment of the requirements for the degree MASTER 07 SCIENCE Department of Chemistry KANSAS STATE UNIVERSITY Manhattan, Kansas 1%1 TABLE OP COHTKHTS INTRODUCTIOU 1 Theoretical Considerations 3 Previous llH(n,p)cU studies 10 EXPERIMENTAL 21 Sample Preparation. 21 Irradiation of the Cyanoguanidine Sample. • 21 Analysis of the Irradiated Sample 23 Total Carbon-U Activity 25 Chemical Separations 25 Radiochemical Counting Techniques 31 RESULTS AND DISCUSSION 37 Distribution of the Carbon-14 Recoil Atom 40 Radiocarbon Product Distribution 46 SUMMARY 50 ACKNOWLEDGMENTS 51 REFERENCES 52 t nmtCLXTroi In a flux of thermal neutrons, nitrogen atone undergo the nuclear trine- formation NH(n>p)cH. in normal pile-neutron irradiations, the compound to be Irradiated is also subjected to gamma radiation. Both the gamma radia- tion and the nuclear reactions initiated by the neutrons are capable of supplying energy to promote chemical reactions which normally would occur only at elevated temperatures. Collins and Calkins (6) have estimated the average energy of the gamma rays in the Oak Ridge graphite reactor to be approximately 1 Mev. Few nuclear reactions are initiated by the absorption of gamma rays at this photon energy and thus, the important nuclear reactions are those produced by the neutrons. The eyanoguanidine molecule is interesting for studying the chemical consequences produced by the nuclear transformation NU( n ,p)cH for two reasons (1) Within the eyanoguanidine molecule, the nitrogen atoms are bound to carbon atoms by three different types of bonding: single, double and triple bonds. -
Understanding the J/Psi Production Mechanism at PHENIX Todd Kempel Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2010 Understanding the J/psi Production Mechanism at PHENIX Todd Kempel Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Physics Commons Recommended Citation Kempel, Todd, "Understanding the J/psi Production Mechanism at PHENIX" (2010). Graduate Theses and Dissertations. 11649. https://lib.dr.iastate.edu/etd/11649 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Understanding the J= Production Mechanism at PHENIX by Todd Kempel A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Nuclear Physics Program of Study Committee: John G. Lajoie, Major Professor Kevin L De Laplante S¨orenA. Prell J¨orgSchmalian Kirill Tuchin Iowa State University Ames, Iowa 2010 Copyright c Todd Kempel, 2010. All rights reserved. ii TABLE OF CONTENTS LIST OF TABLES . v LIST OF FIGURES . vii CHAPTER 1. Overview . 1 CHAPTER 2. Quantum Chromodynamics . 3 2.1 The Standard Model . 3 2.2 Quarks and Gluons . 5 2.3 Asymptotic Freedom and Confinement . 6 CHAPTER 3. The Proton . 8 3.1 Cross-Sections and Luminosities . 8 3.2 Deep-Inelastic Scattering . 10 3.3 Structure Functions and Bjorken Scaling . 12 3.4 Altarelli-Parisi Evolution . -
The New Look in Oil-Mud Technology
DISPERSIBLE COLLOIDS The New Look in Oil-Mud Technology JAY P. SIMPSON MEMBER AIME BAROID DIV., NATIONAL LEAD CO. Downloaded from http://onepetro.org/jpt/article-pdf/13/12/1177/2213517/spe-150-pa.pdf by guest on 27 September 2021 J. C. COWAN HOUSTON, TEX. A. E. BEASLEY, JR. Abstract tributed to the general inflexibility of the systems. This inflexibility resulted primarily because one basic component Liquids having oil as the continuous phase long have was used in an attempt to arrive at all mud properties. been recognized as desirable for drilling and completing These oil systems can be compared with the early water under certain conditions. Performance limitations, high base muds. costs and inconvenience of handling, however, have kept these oil muds from becoming accepted for widespread, Water-base mlfds in the early years of drilling depended general use. upon bentonite for rheological properties, suspension of solids and filtration control. As was learned with these As previously used, the muds consisted of a bodying earlier clay-water systems, one basic component cannot agent for oil, or primary emulsifier of water in the oil, and by itself provide all of ideal drilling-fluid properties. Today a series of supplementary additives to modify that principal each water-base drilling-fluid property can be controlled component. In recent years a new approach to oil muds with an exactness that was not believed possible even 10 has been taken. Oil-dispersible colloids have been developed years ago. Water-base muds are prepared to have certain to perform specific functions in oil without dependence properties to serve specific purposes, some examples of upon thickening of the oil or emulsification of water. -
Strange Hadrocharmonium ∗ M.B
Physics Letters B 798 (2019) 135022 Contents lists available at ScienceDirect Physics Letters B www.elsevier.com/locate/physletb Strange hadrocharmonium ∗ M.B. Voloshin a,b,c, a William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455, USA b School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA c Institute of Theoretical and Experimental Physics, Moscow, 117218, Russia a r t i c l e i n f o a b s t r a c t Article history: It has been recently suggested that the charged charmoniumlike resonances Zc (4100) and Zc (4200) Received 23 May 2019 are two states of hadrocharmonium, related by the charm quark spin symmetry in the same way Received in revised form 12 August 2019 as the lowest charmonium states ηc and J/ψ. It is pointed out here that in this picture one might Accepted 16 September 2019 expect existence of their somewhat heavier strange counterparts, Zcs, decaying to ηc K and J/ψ K . Some Available online 11 October 2019 expected properties of such charmoniumlike strange resonances are discussed that set benchmarks for Editor: B. Grinstein their search in the decays of the strange Bs mesons. © 2019 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license 3 (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP . Numerous new resonances recently uncovered near the open down to about 4220 MeV), has been recently invoked [11]for de- charm and open bottom thresholds, the so-called XYZ states, ap- scription of the charged charmoniumlike resonances Zc(4100) and parently do not fit in the standard quark-antiquark template and Zc(4200) observed respectively in the decay channels ηcπ [12] 1 contain light constituents in addition to a heavy quark-antiquark and J/ψπ [13]. -
Download Author Version (PDF)
PCCP Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/pccp Page 1 of 12Journal Name Physical Chemistry Chemical Physics Dynamic Article Links ► Cite this: DOI: 10.1039/c0xx00000x www.rsc.org/xxxxxx ARTICLE TYPE Estimating the Binding Ability of Onium Ions with CO 2 and π Systems: A Computational Investigation M. Althaf Hussain, A. Subha Mahadevi and G. Narahari Sastry* Manuscript Received (in XXX, XXX) Xth XXXXXXXXX 20XX, Accepted Xth XXXXXXXXX 20XX 5 DOI: 10.1039/b000000x Density functional theory (DFT) calculations have been employed on 165 complexes of onium ions + + + + (NH 4 , PH 4 , OH 3 ,SH 3 ) and methylated onium ions with CO 2, aromatic (C 6H6) and heteroaromatic (C 5H5X, X = N, P; C 4H5Y, Y = N, P; C 4H4Z, Z = O, S) systems. -
A Probabilistic QCD Picture of Diffractive Dissociation and Predictions for Future Eics
A probabilistic QCD picture of diffractive dissociation and predictions for future EICs Anh Dung Le Based on: ADL, Mueller & Munier, PRD 103 (2021) 054031 ADL, Mueller & Munier, ar iv:2103"100## ADL, arXi!:2103"0$$24 Presen%ed at RPP2021 MO I!A ION + A QCD pi.%ure for diffra.%ion and partonic le!el + Predic%ions a% /u%ure ele.%ron-ion colliders (EICs) 4'ser!a'le of interes%: Rapidity-gap distribution! Diffraction at #ERA$ A large angular ga& obser!ed( Large ra&idity ga& (LRG) 2 CON E" ) 3" DIS in dipole 6odel and diffra.%ion 33" Diffra.%i!e disso.ia%ion of oniu6: a proba'ilis%ic ,CD &ic%ure 333" Diffra.%ive disso.ia%ion a% /u%ure EICs 3 QCD dipole *odel for DI) 7ir%ual photon probes nu.leus !ia a quark-an%iquar9 .olor single% dipole (oniu6) Dipole /a.%oriza%ion: Proba. of the splitting virtual photon → dipole :;: momen%um frac%ion of &hoton carried b) quar9 (or an%i8uark)] 4 Diffractive dissociation of virtual p+oton 2!ol!ed s%a%e 'y Q-D radiati!e e6issions Photon disso.iated to a se% o/ &arti.les (X) > angular gap in de%e.%ors =u.leus ke&% in%ac% 5 Diffractive dissociation of onium 6 Color dipole evolution: )oft-gluon e*issions I0 I0 r Large N 1 ?igh-ra&idi%) e!olu%ion I . I 2 r 2 Transverse position rk r2 space I1 I1 Large nu6'er o/ colors (N.) li6i%: gluon ≃ ;ero1si;e quar91an%i8uark pair @ one1gluon e6ission ≃ (1A 2) di&ole bran.hing (L4; soH1gluon a&&roI.) Boos%ing to high rapidi%y B: 1 Bran.hing re&ea%ed (and inde&enden%) → 'ran.hing &ro.ess 1 Coc9 s%ate of oniu6 is a se% of di&oles wi%h random si;es {r9F A random num'er densi%) n(r9) Each event recorded in a detector corresp. -
SANTA CRUZ INSTITUTE for PARTICLE PHYSICS LIST of PREPRINTS SCIPP # 1. Finite Size Scaling and Asymptotic Freedom of the SU(2)
SANTA CRUZ INSTITUTE FOR PARTICLE PHYSICS LIST OF PREPRINTS SCIPP # 1. Finite Size Scaling and Asymptotic Freedom of the SU(2) Lattice Gauge Model, M. Nauenberg, T. Schalk and R. Brower, Phys. Rev. D24:548 (1981) 81/1 2. Cosmic Ray Trigger Circuit for Large Solenoidal Particle Detectors, A. Seiden, P. Shaffer and J. Warner, NIM 193:597 (1982) 81/2 3. Elastic Photon-Photon Scattering in the 50-130 GeV Range, A.M. Breakstone et al., Phys. Rev. Lett. 47:1778 (1981) 81/3 4. Quasi-Elastic Omega Photoproduction at 50-130 GeV, A.M. Breakstone et al., Phys. Rev. Lett. 47:1782 (1981) 81/4 5. Large Drift Chambers with a Multi-Wire Cell Design, F. Grancagnolo and A. Seiden 81/5 6. A Large-Solid-Angle Spectrometer for High Energy Electrons and Photons, A.M. Breakstone, C.A. Heusch and A. Seiden, NIM 211:209 (1983) 81/6 7. The SU(2) Adjoint Higgs Model, R.C. Brower et al., Phys. Rev. D25:3319 (1982) 81/7 8. Some Ideas on a Central Tracking Chamber for the SLAC Linear Collider, A. Seiden, Proceedings of the 2nd 81/8 TRISTAN Physics Workshop, KEK, Tsukuba, Japan; Ed. Y. Unno, KEK 82-1, p.466 (May 1982) 9. Heavy Flavor Production from Photons and Hadrons, C. Heusch, Presented at the SLAC Summer Institute 82/9 on Particle Physics, 1981. 10. Wide Angle Secondaries Produced by `Beamstrahlung' Interactions, D.B. Smith (SLC Report). 82/10 11. Central Tracking Chamber for SLC, A. Seiden (SLC Report) 82/11 12. Tradeoffs in Drift Chamber Design, A. -
Deep-Inelastic Onium Scattering
DAPNIA/SPP 95-15 SPhT-T95-090 Deep-Inelastic Onium Scattering H.Navelet1, R.P eschanski1,Ch.Royon2 1- Service de Physique Th´eorique, Centre d’Etudes de Saclay F-91191 Gif-sur-Yvette Cedex (France) 2- DAPNIA - SPP, Centre d’Etudes de Saclay F-91191 Gif-sur-Yvette Cedex (France) Abstract: Using the colour dipole approach of the QCD per- turbative (BFKL) Pomeron exchange in onium-onium scattering, we compute the cross section for small but hierarchically different onium sizes. A specific term dependent on the size-ratio is gener- ated. In deep inelastic onium scattering it appears as a scaling- violation contribution to the quark structure function near the BFKL singularity. We find that the extension of the formalism for deep inelastic onium scattering to the proton structure func- tion provides a remarkably good 3-parameter fit to HERA data at small x with a simple physical interpretation in terms of the dipole formulation. 1 Recently, a dipole model approach to the QCD computation of onium- onium scattering from the perturbative resummation of leading logarithms has been proposed[1, 2, 3]. In this framework, each onium state describes a small (i.e. massive) colour-singlet quark-antiquark pair whose infinite mo- mentum wavefuntion is itself composed of colour dipoles at the moment of the interaction. These onia interact locally in impact-parameter space via 2-gluon exchange between the component dipoles. The overall total cross-section has been shown to reproduce the well-known[4] QCD Pomeron exchange (BFKL) due to leading log 1/x resummation. It is thus tempting to try and apply this formalism to the deep-inelastic scattering off protons and more specifically to the proton structure function measured at HERA[5]. -
Effective Field Theories of Heavy-Quark Mesons
Effective Field Theories of Heavy-Quark Mesons A thesis submitted to The University of Manchester for the degree of Doctor of Philosophy (PhD) in the faculty of Engineering and Physical Sciences Mohammad Hasan M Alhakami School of Physics and Astronomy 2014 Contents Abstract 10 Declaration 12 Copyright 13 Acknowledgements 14 1 Introduction 16 1.1 Ordinary Mesons......................... 21 1.1.1 Light Mesons....................... 22 1.1.2 Heavy-light Mesons.................... 24 1.1.3 Heavy-Quark Mesons................... 28 1.2 Exotic cc¯ Mesons......................... 31 1.2.1 Experimental and theoretical studies of the X(3872). 34 2 From QCD to Effective Theories 41 2.1 Chiral Symmetry......................... 43 2.1.1 Chiral Symmetry Breaking................ 46 2.1.2 Effective Field Theory.................. 57 2.2 Heavy Quark Spin Symmetry.................. 65 2.2.1 Motivation......................... 65 2.2.2 Heavy Quark Effective Theory.............. 69 3 Heavy Hadron Chiral Perturbation Theory 72 3.1 Self-Energies of Charm Mesons................. 78 3.2 Mass formula for non-strange charm mesons.......... 89 3.2.1 Extracting the coupling constant of even and odd charm meson transitions..................... 92 2 4 HHChPT for Charm and Bottom Mesons 98 4.1 LECs from Charm Meson Spectrum............... 99 4.2 Masses of the charm mesons within HHChPT......... 101 4.3 Linear combinations of the low energy constants........ 106 4.4 Results and Discussion...................... 108 4.5 Prediction for the Spectrum of Odd- and Even-Parity Bottom Mesons............................... 115 5 Short-range interactions between heavy mesons in frame- work of EFT 126 5.1 Uncoupled Channel........................ 127 5.2 Two-body scattering with a narrow resonance........ -
Angular Decay Coefficients of J/Psi Mesons at Forward Rapidity from P Plus P Collisions at Square Root =510 Gev
BNL-113789-2017-JA Angular decay coefficients of J/psi mesons at forward rapidity from p plus p collisions at square root =510 GeV PHENIX Collaboration Submitted to Physical Review D April 13, 2017 Physics Department Brookhaven National Laboratory U.S. Department of Energy USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26) Notice: This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE- SC0012704 with the U.S. Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or any third party’s use or the results of such use of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.