An Onium Model of Particles with Only Electrons and Protons Ray Fleming 101 E State St
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The Charmed Double Bottom Baryon
The charmed double bottom baryon Author: Marcel Roman´ı Rod´es. Facultat de F´ısica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain. Advisor: Dr. Joan Soto i Riera (Dated: January 15, 2018) Abstract: The aim of this project is to calculate the wavefunction and energy of the ground 0 state of the Ωcbb baryon, which is made up of 2 bottom and 1 charm quarks. Such a particle has ++ not been found yet, but recent observation of the doubly charmed baryon Ξcc (ucc) indicates that a baryon with three heavy quarks may be found in the near future. In this work, we will use the fundamental representation of the SU(3) group to compute the interaction between the quarks, then we will follow the Born-Oppenheimer approximation to find the effective potential generated by the motion of the c quark, which will allow us to solve the Schr¨odinger equation for the bb system. The total spatial wavefunction we are looking for results from the product of the wavefunctions of the two components (c and bb). Finally, we will discuss the possible states taking into account the spin and color wavefunctions. I. INTRODUCTION II. THE STRONG INTERACTION The interaction between quarks is explained by Quan- In July 2017, the LHCb experiment at CERN reported tum Chromodynamics (QCD), which is a gauge theory the observation of the Ξ++ baryon [1], indicating that, cc based on the SU(3) symmetry group. At short distances, sooner rather than later, baryons made up of three heavy where the confinement term is negligible, the interaction quarks will be found. -
Mesons Modeled Using Only Electrons and Positrons with Relativistic Onium Theory Ray Fleming [email protected]
All mesons modeled using only electrons and positrons with relativistic onium theory Ray Fleming [email protected] All mesons were investigated to determine if they can be modeled with the onium model discovered by Milne, Feynman, and Sternglass with only electrons and positrons. They discovered the relativistic positronium solution has the mass of a neutral pion and the relativistic onium mass increases in steps of me/α and me/2α per particle which is consistent with known mass quantization. Any pair of particles or resonances can orbit relativistically and particles and resonances can collocate to form increasingly complex resonances. Pions are positronium, kaons are pionium, D mesons are kaonium, and B mesons are Donium in the onium model. Baryons, which are addressed in another paper, have a non-relativistic nucleon combined with mesons. The results of this meson analysis shows that the compo- sition, charge, and mass of all mesons can be accurately modeled. Of the 220 mesons mod- eled, 170 mass estimates are within 5 MeV/c2 and masses of 111 of 121 D, B, charmonium, and bottomonium mesons are estimated to within 0.2% relative error. Since all mesons can be modeled using only electrons and positrons, quarks and quark theory are unnecessary. 1. Introduction 2. Method This paper is a report on an investigation to find Sternglass and Browne realized that a neutral pion whether mesons can be modeled as combinations of (π0), as a relativistic electron-positron pair, can orbit a only electrons and positrons using onium theory. A non-relativistic particle or resonance in what Browne companion paper on baryons is also available. -
The Muon G-2 Discrepancy: Errors Or New Physics?
The muon g-2 discrepancy: errors or new physics? † M. Passera∗, W. J. Marciano and A. Sirlin∗∗ ∗Istituto Nazionale Fisica Nucleare, Sezione di Padova, I-35131, Padova, Italy †Brookhaven National Laboratory, Upton, New York 11973, USA ∗∗Department of Physics, New York University, 10003 New York NY, USA Abstract. After a brief review of the muon g 2 status, we discuss hypothetical errors in the Standard Model prediction that could explain the present discrepancy with the− experimental value. None of them looks likely. In particular, an hypothetical + increase of the hadroproduction cross section in low-energy e e− collisions could bridge the muon g 2 discrepancy, but is shown to be unlikely in view of current experimental error estimates. If, nonetheless, this turns out to− be the explanation of the discrepancy, then the 95% CL upper bound on the Higgs boson mass is reduced to about 130 GeV which, in conjunction with the experimental 114.4 GeV 95% CL lower bound, leaves a narrow window for the mass of this fundamental particle. Keywords: Muon anomalous magnetic moment, Standard Model Higgs boson PACS: 13.40.Em, 14.60.Ef, 12.15.Lk, 14.80.Bn SM 11 INTRODUCTION aµ = 116591778(61) 10− . The difference with the EXP× 11 experimental value aµ = 116592080(63) 10− [1] The anomalousmagnetic momentof the muon, aµ ,isone EXP SM 11 × is ∆aµ = aµ aµ =+302(88) 10− , i.e., 3.4σ (all of the most interesting observables in particle physics. errors were added− in quadrature).× Similar discrepan- Indeed, as each sector of the Standard Model (SM) con- HLO cies are found employing the aµ values reported in tributes in a significant way to its theoretical prediction, Refs. -
On the Mass Spectrum of Exotic Protonium Atom in Oscillator Representation Method
International Journal of Advanced Science and Technology Vol.74 (2015), pp.43-48 http://dx.doi.org/10.14257/ijast.2015.74.05 On the Mass Spectrum of Exotic Protonium Atom in Oscillator Representation Method Arezu Jahanshir Assistant professor and faculty member of Bueinzahra Technical University, Iran [email protected] Abstract In the given paper one determines the constituent mass of the bound state and binding energy of hadronic exotic system, according to the basis investigation of the asymptotically behavior of the loop function of scalar particles in the external electromagnet field are analytically determined exploration of these states through relativistic and non-perturbative corrections. It is shown that, the mass spectrum of a relativistic bound state of protonium consisting from proton and anti-proton is differing from a mass of initial particles. Keywords: protonium, constituent mass, Hamiltonian, Green function, scalar particles 1. Introduction All of theoretical high energy physician by using mathematical methods and new theories try to understand how bound state arise in the formalism of quantum field theory and to work out effective methods to calculate all characteristics of these bound states, especially their masses, binding energy and spin interactions. The analysis of a bound state is difficult when the interaction have to be considered as relativistic, i.e. when they travel at speeds considerably near the "c". The theoretical criterion is that the coupling constant should be strong [1-6] and masses of intermediate particles gluons in quantum chromodynamic should be big in comparison with masses of constituents. New importance to the exotic hadronic bound state physics was given by the development of quantum chromodynamic, the modern theory of strong interactions. -
Charmed Baryons at the Physical Point in 2+ 1 Flavor Lattice
UTHEP-655 UTCCS-P-69 Charmed baryons at the physical point in 2+1 flavor lattice QCD Y. Namekawa1, S. Aoki1,2, K. -I. Ishikawa3, N. Ishizuka1,2, K. Kanaya2, Y. Kuramashi1,2,4, M. Okawa3, Y. Taniguchi1,2, A. Ukawa1,2, N. Ukita1 and T. Yoshi´e1,2 (PACS-CS Collaboration) 1 Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan 2 Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan 3 Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan 4 RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047, Japan (Dated: August 16, 2018) Abstract We investigate the charmed baryon mass spectrum using the relativistic heavy quark action on 2+1 flavor PACS-CS configurations previously generated on 323 64 lattice. The dynamical up- × down and strange quark masses are tuned to their physical values, reweighted from those employed in the configuration generation. At the physical point, the inverse lattice spacing determined from the Ω baryon mass gives a−1 = 2.194(10) GeV, and thus the spatial extent becomes L = 32a = 2.88(1) fm. Our results for the charmed baryon masses are consistent with experimental values, except for the mass of Ξcc, which has been measured by only one experimental group so far and has not been confirmed yet by others. In addition, we report values of other doubly and triply charmed baryon masses, which have never been measured experimentally. arXiv:1301.4743v2 [hep-lat] 24 Jan 2013 1 I. INTRODUCTION Recently, a lot of new experimental results are reported on charmed baryons [1]. -
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. -
Arxiv:2009.05616V2 [Hep-Ph] 18 Oct 2020 ± ± Bution from the Decays K → Π A2π (Considered in [1]) 2 0 0 Mrα Followed by the Decay A2π → Π Π [7]
Possible manifestation of the 2p pionium in particle physics processes Peter Lichard Institute of Physics and Research Centre for Computational Physics and Data Processing, Silesian University in Opava, 746 01 Opava, Czech Republic and Institute of Experimental and Applied Physics, Czech Technical University in Prague, 128 00 Prague, Czech Republic 0 We suggest a few particle physics processes in which excited 2p pionium A2π may be observed. They include the e+e− ! π+π− annihilation, the V 0 ! π0`+`− and K± ! π±`+`− (` = e; µ) decays, and the photoproduction of two neutral pions from nucleons. We analyze available exper- imental data and find that they, in some cases, indicate the presence of 2p pionium, but do not provide definite proof. I. INTRODUCTION that its quantum numbers J PC = 1−− prevent it from decaying into the positive C-parity π0π0 and γγ states. The first thoughts about an atom composed of a pos- It must first undergo the 2p!1s transition to the ground state. The mean lifetime of 2p pionium itive pion and a negative pion (pionium, or A2π in the present-day notation) appeared almost sixty years ago. τ = 0:45+1:08 × 10−11 s: (1) Uretsky and Palfrey [1] assumed its existence and ana- 2p −0:30 lyzed the possibilities of detecting it in the photoproduc- is close to the value which comes for the π+π− atom tion off hydrogen target. Up to this time, such a process assuming a pure Coulomb interaction [8]. After reaching has not been observed. They also hypothesized about the 0 0 the 1s state, a decay to two π s quickly follows: A2π ! possibility of decay K+ ! π+A , which has recently 0 0 2π A2π + γ ! π π γ. -
Arxiv:2011.12166V3 [Hep-Lat] 15 Apr 2021
LLNL-JRNL-816949, RIKEN-iTHEMS-Report-20, JLAB-THY-20-3290 Scale setting the M¨obiusdomain wall fermion on gradient-flowed HISQ action using the omega baryon mass and the gradient-flow scales t0 and w0 Nolan Miller,1 Logan Carpenter,2 Evan Berkowitz,3, 4 Chia Cheng Chang (5¶丞),5, 6, 7 Ben H¨orz,6 Dean Howarth,8, 6 Henry Monge-Camacho,9, 1 Enrico Rinaldi,10, 5 David A. Brantley,8 Christopher K¨orber,7, 6 Chris Bouchard,11 M.A. Clark,12 Arjun Singh Gambhir,13, 6 Christopher J. Monahan,14, 15 Amy Nicholson,1, 6 Pavlos Vranas,8, 6 and Andr´eWalker-Loud6, 8, 7 1Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27516-3255, USA 2Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA 3Department of Physics, University of Maryland, College Park, MD 20742, USA 4Institut f¨urKernphysik and Institute for Advanced Simulation, Forschungszentrum J¨ulich,54245 J¨ulichGermany 5Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 6Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA 7Department of Physics, University of California, Berkeley, CA 94720, USA 8Physics Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA 9Escuela de F´ısca, Universidad de Costa Rica, 11501 San Jos´e,Costa Rica 10Arithmer Inc., R&D Headquarters, Minato, Tokyo 106-6040, Japan 11School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK 12NVIDIA Corporation, 2701 San Tomas Expressway, Santa Clara, CA 95050, USA 13Design Physics Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA 14Department of Physics, The College of William & Mary, Williamsburg, VA 23187, USA 15Theory Center, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA (Dated: April 16, 2021 - 1:31) We report on a subpercent scale determination using the omega baryon mass and gradient-flow methods. -
Understanding the Ultimate Structure of Matters and Some Scientific Doubts of Nature Through Simple Hypotheses
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.Volume 9, Issue 2 Ver. I (Mar. – Apr. 2017), PP 64-68 www.iosrjournals.org Understanding the Ultimate Structure of Matters and Some Scientific Doubts of Nature through Simple Hypotheses Bao-Yu Zong (Temasek Laboratories, National University of Singapore, Singapore) Abstract: There are numerous unanswered scientific doubts/phenomena in Nature which still perplex scientific researchers currently. To solve these puzzles, unveiling the ultimate structure of matters, which make up the Nature world, is essential. Here four hypotheses, namely the fundamental matter component (basic particle) and its property, construction process of the basic particles into other particles/matters, repulsion of particles of the same type, and direct relationship between matter and energy, are proposed. These simple hypotheses can well explain some natural phenomena, such as the existence of huge atom energy and various particles/matters of different properties, and conversion balance between matters and energy. Due to the existence of diverse infinite fine particles and repulsion of particles of the same types, matters and the Nature world are submerged in a sea of particles and there is not a real vacuum space (without any particle) in the Nature world. This in turn reveals Thermal Laws, the component of dark energy/matter, as well as a minimum temperature of ~3K that exists in the deep Universe. The suggested relationships between particles and/or matters also shed light on the mechanisms of interaction forces of same or different polarity particles, and intermedia of gravitational, electrical and magnetic fields. Keywords: Basic particle, elementary particle, dark energy/matter, smallest transporter of energy, fundamental component of matter I. -
Progress and Simulations for Intranuclear Neutron-Antineutron 40Ar Transformations in 18 Joshua L
PHYSICAL REVIEW D 101, 036008 (2020) Progress and simulations for intranuclear neutron-antineutron 40Ar transformations in 18 Joshua L. Barrow * The University of Tennessee at Knoxville, Department of Physics and Astronomy, † 1408 Circle Drive, Knoxville, Tennessee 37996, USA ‡ Elena S. Golubeva and Eduard Paryev§ Institute for Nuclear Research, Russian Academy of Sciences, Prospekt 60-letiya Oktyabrya 7a, Moscow 117312, Russia ∥ Jean-Marc Richard Institut de Physique des 2 Infinis de Lyon, Universit´e de Lyon, CNRS-IN2P3–UCBL, 4 rue Enrico Fermi, Villeurbanne 69622, France (Received 10 June 2019; accepted 29 January 2020; published 18 February 2020) With the imminent construction of the Deep Underground Neutrino Experiment (DUNE) and Hyper- Kamiokande, nucleon decay searches as a means to constrain beyond standard model extensions are once again at the forefront of fundamental physics. Abundant neutrons within these large experimental volumes, along with future high-intensity neutron beams such as the European Spallation Source, offer a powerful, high-precision portal onto this physics through searches for B and B − L violating processes such as neutron-antineutron transformations (n → n¯), a key prediction of compelling theories of baryogenesis. With this in mind, this paper discusses a novel and self-consistent intranuclear simulation of this process 40 within 18Ar, which plays the role of both detector and target within the DUNE’s gigantic liquid argon time projection chambers. An accurate and independent simulation of the resulting intranuclear annihilation respecting important physical correlations and cascade dynamics for this large nucleus is necessary to understand the viability of such rare searches when contrasted against background sources such as atmospheric neutrinos. -
Sub Atomic Particles and Phy 009 Sub Atomic Particles and Developments in Cern Developments in Cern
1) Mahantesh L Chikkadesai 2) Ramakrishna R Pujari [email protected] [email protected] Mobile no: +919480780580 Mobile no: +917411812551 Phy 009 Sub atomic particles and Phy 009 Sub atomic particles and developments in cern developments in cern Electrical and Electronics Electrical and Electronics KLS’s Vishwanathrao deshpande rural KLS’s Vishwanathrao deshpande rural institute of technology institute of technology Haliyal, Uttar Kannada Haliyal, Uttar Kannada SUB ATOMIC PARTICLES AND DEVELOPMENTS IN CERN Abstract-This paper reviews past and present cosmic rays. Anderson discovered their existence; developments of sub atomic particles in CERN. It High-energy subato mic particles in the form gives the information of sub atomic particles and of cosmic rays continually rain down on the Earth’s deals with basic concepts of particle physics, atmosphere from outer space. classification and characteristics of them. Sub atomic More-unusual subatomic particles —such as particles also called elementary particle, any of various self-contained units of matter or energy that the positron, the antimatter counterpart of the are the fundamental constituents of all matter. All of electron—have been detected and characterized the known matter in the universe today is made up of in cosmic-ray interactions in the Earth’s elementary particles (quarks and leptons), held atmosphere. together by fundamental forces which are Quarks and electrons are some of the elementary represente d by the exchange of particles known as particles we study at CERN and in other gauge bosons. Standard model is the theory that laboratories. But physicists have found more of describes the role of these fundamental particles and these elementary particles in various experiments. -
Exotic Double-Charm Molecular States with Hidden Or Open Strangeness and Around 4.5 ∼ 4.7 Gev
PHYSICAL REVIEW D 102, 094006 (2020) Exotic double-charm molecular states with hidden or open strangeness and around 4.5 ∼ 4.7 GeV † Fu-Lai Wang and Xiang Liu * School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China and Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China (Received 1 September 2020; accepted 16 October 2020; published 10 November 2020) à In this work, we investigate the interactions between the charmed-strange meson (Ds;Ds )inH-doublet à and the (anti-)charmed-strange meson (Ds1;Ds2)inT-doublet, where the one boson exchange model is adopted by considering the S-D wave mixing and the coupled-channel effects. By extracting the effective ¯ potentials for the discussed HsTs and HsTs systems, we try to find the bound state solutions for the corresponding systems. We predict the possible hidden-charm hadronic molecular states with hidden à ¯ PC 0−− 0−þ à ¯ à strangeness, i.e., the Ds Ds1 þ c:c: states with J ¼ ; and the Ds Ds2 þ c:c: states with PC −− −þ J ¼ 1 ; 1 . Applying the same theoretical framework, we also discuss the HsTs systems. Unfortunately, the existence of the open-charm and open-strange molecular states corresponding to the HsTs systems can be excluded. DOI: 10.1103/PhysRevD.102.094006 ¯ ðÞ I. INTRODUCTION strong evidence to support these Pc states as the ΣcD - – Studying exotic hadronic states, which are very type hidden-charm pentaquark molecules [10 16]. different from conventional mesons and baryons, is an Before presenting our motivation, we first need to give a intriguing research frontier full of opportunities and chal- brief review of how these observed XYZ states were lenges in hadron physics.