Pub Date : 2022-07-29DOI: 10.31349/suplrevmexfis.3.0308051
Liang Yan
Hyperon is an ideal probe to study the QCD in the region of non-perturbative to perturbative. Using 1.31 × 109 J/ψ and 448.1 × 106 ψ(3686) events, the hyperon anti-hyperon pair production are well studied. The hyperon polarization and its decay parameter have been measured in high precision through their quantum entangle system. By comparing the decay parameters in hyperon and anti-hyperon decays, the CP conservation observables has been measured which is important to test the Standard Model and search for New Physics.
{"title":"Light hyperon polarization and CP test at BESIII","authors":"Liang Yan","doi":"10.31349/suplrevmexfis.3.0308051","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308051","url":null,"abstract":"Hyperon is an ideal probe to study the QCD in the region of non-perturbative to perturbative. Using 1.31 × 109 J/ψ and 448.1 × 106 ψ(3686) events, the hyperon anti-hyperon pair production are well studied. The hyperon polarization and its decay parameter have been measured in high precision through their quantum entangle system. By comparing the decay parameters in hyperon and anti-hyperon decays, the CP conservation observables has been measured which is important to test the Standard Model and search for New Physics.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127404100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-25DOI: 10.31349/suplrevmexfis.3.040910
Joaquin Grefa, M. Hippert, J. Noronha, J. Noronha-Hostler, I. Portillo, C. Ratti, R. Rougemont
By using gravity/gauge correspondence, we employ an Einstein-Maxwell-Dilaton model to compute the equilibrium and out-of-equilibrium properties of a hot and baryon rich strongly coupled quark-gluon plasma. The family of 5-dimensional holographic black holes, which are constrained to mimic the lattice QCD equation of state at zero density, is used to investigate the temperature and baryon chemical potential dependence of the equation of state. We also obtained the baryon charge conductivity, and the bulk and shear viscosities with a particular focus on the behavior of these observables on top of the critical end point and the line of first order phase transition predicted by the model.
{"title":"QCD Equilibrium and Dynamical Properties from Holographic Black Holes","authors":"Joaquin Grefa, M. Hippert, J. Noronha, J. Noronha-Hostler, I. Portillo, C. Ratti, R. Rougemont","doi":"10.31349/suplrevmexfis.3.040910","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.040910","url":null,"abstract":"By using gravity/gauge correspondence, we employ an Einstein-Maxwell-Dilaton model to compute the equilibrium and out-of-equilibrium properties of a hot and baryon rich strongly coupled quark-gluon plasma. The family of 5-dimensional holographic black holes, which are constrained to mimic the lattice QCD equation of state at zero density, is used to investigate the temperature and baryon chemical potential dependence of the equation of state. We also obtained the baryon charge conductivity, and the bulk and shear viscosities with a particular focus on the behavior of these observables on top of the critical end point and the line of first order phase transition predicted by the model.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129597581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-20DOI: 10.31349/suplrevmexfis.3.040912
Patrick Carzon, Mauricio Martinez, M. Sievert, D. Wertepny, J. Noronha-Hostler
While it is well known that there is a significant amount of conserved charges in the initial state of nuclear collisions, the production of these due to gluon splitting has yet to be thoroughly investigated. The ICCING (Initial Conserved Charges in Nuclear Geometry) algorithm reconstructs these quark distributions, providing conserved strange, baryon, and electric charges, by sampling a given model for the g → qq¯ splitting function over the initial energy density, which is valid at top collider energies, even when µB = 0. The ICCING algorithm includes fluctuations in the gluon longitudinal momenta, a structure that supports the implementation of dynamical processes, and the c++ version is now open-source. A full analysis of parameter choices on the model has been done to quantify the effect these have on the underlying physics. We find there is a sustained difference across the different charges that indicates sensitivity to hot spot geometry.
{"title":"Initializing BSQ with Open-Source ICCING","authors":"Patrick Carzon, Mauricio Martinez, M. Sievert, D. Wertepny, J. Noronha-Hostler","doi":"10.31349/suplrevmexfis.3.040912","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.040912","url":null,"abstract":"While it is well known that there is a significant amount of conserved charges in the initial state of nuclear collisions, the production of these due to gluon splitting has yet to be thoroughly investigated. The ICCING (Initial Conserved Charges in Nuclear Geometry) algorithm reconstructs these quark distributions, providing conserved strange, baryon, and electric charges, by sampling a given model for the g → qq¯ splitting function over the initial energy density, which is valid at top collider energies, even when µB = 0. The ICCING algorithm includes fluctuations in the gluon longitudinal momenta, a structure that supports the implementation of dynamical processes, and the c++ version is now open-source. A full analysis of parameter choices on the model has been done to quantify the effect these have on the underlying physics. We find there is a sustained difference across the different charges that indicates sensitivity to hot spot geometry.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124217823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-20DOI: 10.31349/suplrevmexfis.3.040921
J. Martin, J. Noronha-Hostler, H. Elfner, J. Hammelmann, R. Hirayama
Recent lattice QCD results, comparing to a hadron resonance gas model, have shown the need for hundreds of particles in hadronic models. These extra particles influence both the equation of state and hadronic interactions within hadron transport models. Here, we introduce the PDG21+ particle list, which contains the most up-to-date database of particles and their properties. We then convert all particles decays into 2 body decays so that they are compatible with SMASH in order to produce a more consistent description of a heavy-ion collision.
{"title":"Influence of heavy resonances in SMASH","authors":"J. Martin, J. Noronha-Hostler, H. Elfner, J. Hammelmann, R. Hirayama","doi":"10.31349/suplrevmexfis.3.040921","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.040921","url":null,"abstract":"Recent lattice QCD results, comparing to a hadron resonance gas model, have shown the need for hundreds of particles in hadronic models. These extra particles influence both the equation of state and hadronic interactions within hadron transport models. Here, we introduce the PDG21+ particle list, which contains the most up-to-date database of particles and their properties. We then convert all particles decays into 2 body decays so that they are compatible with SMASH in order to produce a more consistent description of a heavy-ion collision.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133178305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.31349/suplrevmexfis.3.0308116
M. Krivos
Studies of jet fragmentation in heavy-ion collisions can provide information about the mechanism of jet quenching inside the hot and dense QCD matter created in these collisions. These proceedings present results from measurements of charged particle yields within and around the jets in dijet, gamma+jet and Z+jet systems measured in $5.02$~TeV Pb+Pb and $pp$ collisions using the ATLAS detector at the LHC.
{"title":"Measurement of angular and momentum distributions of charged particles within and around jets with the ATLAS detector","authors":"M. Krivos","doi":"10.31349/suplrevmexfis.3.0308116","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308116","url":null,"abstract":"Studies of jet fragmentation in heavy-ion collisions can provide information about the mechanism of jet quenching inside the hot and dense QCD matter created in these collisions. These proceedings present results from measurements of charged particle yields within and around the jets in dijet, gamma+jet and Z+jet systems measured in $5.02$~TeV Pb+Pb and $pp$ collisions using the ATLAS detector at the LHC.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128491883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.31349/suplrevmexfis.3.0308075
E. Tomasi
SPD is an international Collaboration gathering around the Spin Physics Detector at the Nuclotron-based Ion Collider FAcility (NICA), presently under construction at the Joint Institute per Nuclear Research, in Dubna. The project is briefly presented with special focus to the opportunities opened by the collision of high luminosity polarized proton and deuteron beams with total energy up to $sqrt{s}$=27 GeV. Examples of the foreseen research program are highlighted, in connection with the spin structure of light nuclei, the proton gluon content and the spin dependence of the nucleon-nucleon interaction. The unicity of NICA-SPD makes the future results complementary to the studies that have been or will be performed at other polarized hadron machines in different energy domains.
{"title":"The NICA-SPD project: a new tool to investigate the hadron structure","authors":"E. Tomasi","doi":"10.31349/suplrevmexfis.3.0308075","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308075","url":null,"abstract":"SPD is an international Collaboration gathering around the Spin Physics Detector at the Nuclotron-based Ion Collider FAcility (NICA), presently under construction at the Joint Institute per Nuclear Research, in Dubna. The project is briefly presented with special focus to the opportunities opened by the collision of high luminosity polarized proton and deuteron beams with total energy up to $sqrt{s}$=27 GeV. Examples of the foreseen research program are highlighted, in connection with the spin structure of light nuclei, the proton gluon content and the spin dependence of the nucleon-nucleon interaction. The unicity of NICA-SPD makes the future results complementary to the studies that have been or will be performed at other polarized hadron machines in different energy domains.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126673771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.31349/suplrevmexfis.3.0308084
Ki Hong, U. Yakhshiev, Hyun-Chul Kim
The properties of quarkonia are discussed in the framework of the nonrelativistic potential approach based on the instanton-induced interactions from the instanton vacuum. we have obtained the spectrum of charmonia and discuss the results. We also examine the instanton effects on the color-octet heavy-quark potential.
{"title":"Charmonium spectrum and the color-octet heavy-quark potential from the instanton vacuum","authors":"Ki Hong, U. Yakhshiev, Hyun-Chul Kim","doi":"10.31349/suplrevmexfis.3.0308084","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308084","url":null,"abstract":"\u0000The properties of quarkonia are discussed in the framework of the nonrelativistic potential approach based on the instanton-induced interactions from the instanton vacuum. we have obtained the spectrum of charmonia and discuss the results. We also examine the instanton effects on the color-octet heavy-quark potential. \u0000","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124615281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.31349/suplrevmexfis.3.0308091
C. Mondal
We demonstrate that the ’t Hooft equation and the light-front holographic Schrodinger equation are complementary to each other in governing ¨ the longitudinal and the transverse dynamics of color confinement in mesons (quark-antiquark) and baryons (quark-diquark). Together, they describe remarkably well the spectroscopic data for the light-light, heavy-light and heavy-heavy hadrons. In all hadrons, the transverse dynamics of confinement is controlled by the universal emerging hadronic scale of the light-front holography, κ ∼ 0.5 GeV, which, in heavy-heavy hadrons, coincides with the ’t Hooft coupling that governs the longitudinal confinement. This reflects the restoration of the rotational symmetry in the non-relativistic limit.
我们证明了t Hooft方程和光阵全息薛定谔方程在控制介子(夸克-反夸克)和重子(夸克-重夸克)中颜色约束的纵向和横向动力学方面是互补的。它们一起很好地描述了轻、轻、重强子的光谱数据。在所有强子中，约束的横向动力学是由光前全息的普遍出现的强子尺度(κ ~ 0.5 GeV)控制的，在重子中，它与控制纵向约束的' t Hooft耦合一致。这反映了在非相对论性极限下旋转对称性的恢复。
{"title":"Longitudinal dynamics in light-front holographic QCD and hadron spectroscopy","authors":"C. Mondal","doi":"10.31349/suplrevmexfis.3.0308091","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308091","url":null,"abstract":"We demonstrate that the ’t Hooft equation and the light-front holographic Schrodinger equation are complementary to each other in governing ¨ the longitudinal and the transverse dynamics of color confinement in mesons (quark-antiquark) and baryons (quark-diquark). Together, they describe remarkably well the spectroscopic data for the light-light, heavy-light and heavy-heavy hadrons. In all hadrons, the transverse dynamics of confinement is controlled by the universal emerging hadronic scale of the light-front holography, κ ∼ 0.5 GeV, which, in heavy-heavy hadrons, coincides with the ’t Hooft coupling that governs the longitudinal confinement. This reflects the restoration of the rotational symmetry in the non-relativistic limit.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127419977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.31349/suplrevmexfis.3.0308094
E. Ydrefors, T. Frederico
The proton has been studied in a fully dynamical three-body model on the light-front. The model is based on the concept of a strongly interacting diquark, either bound or virtual, which is generated from a zero-range interaction between the two active quarks. The obtained results for the Dirac electromagnetic form factor and also the density in the Ioffe-time space are shown and discussed. Additionally, we present results for the parton distribution function of the proton.
{"title":"Proton image and momentum distributions on the light-front","authors":"E. Ydrefors, T. Frederico","doi":"10.31349/suplrevmexfis.3.0308094","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308094","url":null,"abstract":"The proton has been studied in a fully dynamical three-body model on the light-front. The model is based on the concept of a strongly interacting diquark, either bound or virtual, which is generated from a zero-range interaction between the two active quarks. The obtained results for the Dirac electromagnetic form factor and also the density in the Ioffe-time space are shown and discussed. Additionally, we present results for the parton distribution function of the proton.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125942665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-29DOI: 10.31349/suplrevmexfis.3.0308068
Daniel Gallimore, J. Liao
We perform a quantum calculation of the 1S charmonium mass by simulating the spinless Cornell Hamiltonian on a quantum processor using a variational method. Errors due to a global depolarizing noise channel are corrected with a zero-noise extrapolation method, resulting in good agreement with the known value. We also calculate the 2S mass of charmonium on a noiseless quantum simulator by orthogonalizing with respect to the ground state. This research demonstrates that near-term quantum devices are capable of simulating heavy quark bound states, which are currently under-represented in the literature.
{"title":"Quantum computation of heavy quarkonium masses","authors":"Daniel Gallimore, J. Liao","doi":"10.31349/suplrevmexfis.3.0308068","DOIUrl":"https://doi.org/10.31349/suplrevmexfis.3.0308068","url":null,"abstract":"We perform a quantum calculation of the 1S charmonium mass by simulating the spinless Cornell Hamiltonian on a quantum processor using a variational method. Errors due to a global depolarizing noise channel are corrected with a zero-noise extrapolation method, resulting in good agreement with the known value. We also calculate the 2S mass of charmonium on a noiseless quantum simulator by orthogonalizing with respect to the ground state. This research demonstrates that near-term quantum devices are capable of simulating heavy quark bound states, which are currently under-represented in the literature.","PeriodicalId":210091,"journal":{"name":"Suplemento de la Revista Mexicana de Física","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125727368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：