Pub Date : 2024-08-18DOI: 10.1134/s1063779624700242
V. Voronyuk, E. E. Kolomeitsev, N. V. Kolomoyets, O. V. Teryaev, N. S. Tsegelnik
Abstract
Preliminary results on determination of the microscopic Hubble constant for pions and nucleons in Au + Au collisions at (sqrt {{{s}_{{NN}}}} = 7.8) GeV for a range of times and (b = 7.5) fm are presented and discussed. The data are simulated within PHSD model. A typically used method based on the fit of the velocity profile is considered in detail. Also a new method for determination of the Hubble parameter is proposed. It consists in the analysis of the statistical distribution of the divergence of the velocity field and getting the Hubble parameter as a position of a particular peak of the distribution. A comparison of the methods is done.
{"title":"The Hubble Constant in Heavy Ion Collisions","authors":"V. Voronyuk, E. E. Kolomeitsev, N. V. Kolomoyets, O. V. Teryaev, N. S. Tsegelnik","doi":"10.1134/s1063779624700242","DOIUrl":"https://doi.org/10.1134/s1063779624700242","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Preliminary results on determination of the microscopic Hubble constant for pions and nucleons in Au + Au collisions at <span>(sqrt {{{s}_{{NN}}}} = 7.8)</span> GeV for a range of times and <span>(b = 7.5)</span> fm are presented and discussed. The data are simulated within PHSD model. A typically used method based on the fit of the velocity profile is considered in detail. Also a new method for determination of the Hubble parameter is proposed. It consists in the analysis of the statistical distribution of the divergence of the velocity field and getting the Hubble parameter as a position of a particular peak of the distribution. A comparison of the methods is done.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700722
N. Makhaldiani
Abstract
Formal definition of the contemporary meaning of the New Physics proposed. A constituent picture of the (W) and (H) bosons considered. Connection between Hagedorn, Tsallis-like, and negative binomial distributions for inclusive cross sections established.
AbstractFormal definition of the contemporary meaning of the New Physics proposed.考虑了（W）和（H）玻色子的构成。建立了包容截面的哈格多恩、类查利斯和负二项式分布之间的联系。
{"title":"New Physics, Semi-Inclusive Distributions, and Statistical Potentials","authors":"N. Makhaldiani","doi":"10.1134/s1063779624700722","DOIUrl":"https://doi.org/10.1134/s1063779624700722","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Formal definition of the contemporary meaning of the New Physics proposed. A constituent picture of the <span>(W)</span> and <span>(H)</span> bosons considered. Connection between Hagedorn, Tsallis-like, and negative binomial distributions for inclusive cross sections established.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700746
A. I. Balabernikov, S. M. Dorkin, L. P. Kaptari
Abstract
The Bethe–Salpeter equation in the coordinate representation, which has the form of a differential equation of fourth order for the Bethe–Salpeter amplitude is investigated. For the model of scalar particles interacting through exchange of a scalar mass particle, a method for solving it is proposed. The coupling constants and amplitudes as a function of the bound state mass are found. The found coupling constants are compared with those obtained in other approaches.
{"title":"A New Method for Solving the Bethe–Salpeter Equation","authors":"A. I. Balabernikov, S. M. Dorkin, L. P. Kaptari","doi":"10.1134/s1063779624700746","DOIUrl":"https://doi.org/10.1134/s1063779624700746","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The Bethe–Salpeter equation in the coordinate representation, which has the form of a differential equation of fourth order for the Bethe–Salpeter amplitude is investigated. For the model of scalar particles interacting through exchange of a scalar mass particle, a method for solving it is proposed. The coupling constants and amplitudes as a function of the bound state mass are found. The found coupling constants are compared with those obtained in other approaches.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700849
O. Shaposhnikova, A. Marova, G. Feofilov
Abstract
We use the available data on (leftlangle {{{dN} mathord{left/ {vphantom {{dN} {dy}}} right. kern-0em} {dy}}} rightrangle ) and (leftlangle {{{p}_{{text{T}}}}} rightrangle ) for the identified hadrons including ({{pi }^{ + }})+ ({{pi }^{ - }}), ({{K}^{ + }}) + ({{K}^{ - }}), (p) + (bar {p}), (K{text{*}}{{(892)}^{0}}), (overline K {text{*}}{{(892)}^{0}}) and φ-mesons, registered at midrapidity ((left| y right| < 0.5)) in 0–5% central Au + Au, Pb + Pb and Xe + Xe collisions in a broad range of energies. The goal is to compare the relative contributions to the Bjorken energy density. Particles, like strangeness-neutral φ-meson (a system of (sbar {s}) quarks) and K‑meson (containing single s-quark), are of specific interest because they might have different production mechanisms and differ in sensitivity to the properties of the QGP-medium formed in relativistic heavy-ion collisions.
Abstract We use available data on (leftlangle {{{dN}左/ {vphantom {{dN} {dy}}} 的数据。right.kern-0em} {dy}})和(left/langle {{p}_{text{T}}}}} rightrangle )为确定的强子，包括 ({{pi }^{ + }})+ ({{pi }^{ - }}), ({{K}^{ + }}) + ({{K}^{ - }})、(p)+(bar{p})，(K{text{*}}{(892)}^{0}})，(overline K {text{*}}{(892)}^{0}}) and φ-mesons, registered at midrapidity ((left| y right| <；0.5))在 0-5% 中心 Au + Au、Pb + Pb 和 Xe + Xe 对撞中的广泛能量范围内注册的。目的是比较对比约肯能量密度的相对贡献。像中性φ介子（一个由（sbar {s}）夸克组成的系统）和K介子（包含单个s夸克）这样的粒子是特别令人感兴趣的，因为它们可能有不同的产生机制，而且对相对论重离子碰撞中形成的QGP介质的性质的敏感性也不同。
{"title":"Open and Hidden Strangeness with Kaons and φ-Mesons in Bjorken Energy Density Approach for Central Collisions from SPS to LHC","authors":"O. Shaposhnikova, A. Marova, G. Feofilov","doi":"10.1134/s1063779624700849","DOIUrl":"https://doi.org/10.1134/s1063779624700849","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We use the available data on <span>(leftlangle {{{dN} mathord{left/ {vphantom {{dN} {dy}}} right. kern-0em} {dy}}} rightrangle )</span> and <span>(leftlangle {{{p}_{{text{T}}}}} rightrangle )</span> for the identified hadrons including <span>({{pi }^{ + }})</span>+ <span>({{pi }^{ - }})</span>, <span>({{K}^{ + }})</span> + <span>({{K}^{ - }})</span>, <span>(p)</span> + <span>(bar {p})</span>, <span>(K{text{*}}{{(892)}^{0}})</span>, <span>(overline K {text{*}}{{(892)}^{0}})</span> and φ-mesons, registered at midrapidity <span>((left| y right| < 0.5))</span> in 0–5% central Au + Au, Pb + Pb and Xe + Xe collisions in a broad range of energies. The goal is to compare the relative contributions to the Bjorken energy density. Particles, like strangeness-neutral φ-meson (a system of <span>(sbar {s})</span> quarks) and <i>K</i>‑meson (containing single <i>s</i>-quark), are of specific interest because they might have different production mechanisms and differ in sensitivity to the properties of the QGP-medium formed in relativistic heavy-ion collisions.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700503
R. Lednicky
Abstract
The analysis of ALEPH data on femtoscopic correlations of two Λ-hyperons in Z-boson decays yields a very small source radius of (0.11 pm 0.03) fm if taking into account only the repulsion due to the Fermi–Dirac quantum statistics. Such a small source radius is counter-intuitive in the string picture of particle production due to a moderate string tension of ~1 GeV/fm. It is shown that the ALEPH data can be described with an acceptable source radius of >~0.3 fm if taking into account the repulsive final state interaction between hyperons at distances smaller than a femtometer. Information on the potential core of two-hyperon interaction is difficult to obtain otherwise.
{"title":"Probing a Core of the Interaction Potential of Two Λ-Hyperons with Femtoscopic Correlations at LEP","authors":"R. Lednicky","doi":"10.1134/s1063779624700503","DOIUrl":"https://doi.org/10.1134/s1063779624700503","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The analysis of ALEPH data on femtoscopic correlations of two Λ-hyperons in Z-boson decays yields a very small source radius of <span>(0.11 pm 0.03)</span> fm if taking into account only the repulsion due to the Fermi–Dirac quantum statistics. Such a small source radius is counter-intuitive in the string picture of particle production due to a moderate string tension of ~1 GeV/fm. It is shown that the ALEPH data can be described with an acceptable source radius of >~0.3 fm if taking into account the repulsive final state interaction between hyperons at distances smaller than a femtometer. Information on the potential core of two-hyperon interaction is difficult to obtain otherwise.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700771
N. Barlykov, V. Dudin, E. Kokoulina, V. Nikitin, V. Popov
Abstract
Multiparticle production processes continue to attract attention because no one generator can describe data at different energies. Quantum chromodynamics calculates these processes in terms of quarks and gluons. The transition to observable hadrons is extremely difficult, since the perturbative QCD theory is not applicable to this region. The work presents a gluon dominance model, in which the hadronization stage is described phenomenologically. Within the framework of the model (“Thermalization” project), based on data of pp interactions in the range of high multiplicity, the active role of a gluon component in the production of secondary particles is confirmed. The ratio between the quark emission of a gluon to the gluon fission is estimated. A number of collective phenomena are observed in this region: the production of a pion (Bose–Einstein) condensate, signals that we interpret as the Cherenkov radiation of gluons, the disappearance of leading particles. The study of the gluon structure of the proton and the search for collective phenomena in (pp) collisions can be carried out at the SPD facility of the future NICA collider (JINR, Dubna).
{"title":"The Active Role of Gluons in Processes of Multiple Production","authors":"N. Barlykov, V. Dudin, E. Kokoulina, V. Nikitin, V. Popov","doi":"10.1134/s1063779624700771","DOIUrl":"https://doi.org/10.1134/s1063779624700771","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Multiparticle production processes continue to attract attention because no one generator can describe data at different energies. Quantum chromodynamics calculates these processes in terms of quarks and gluons. The transition to observable hadrons is extremely difficult, since the perturbative QCD theory is not applicable to this region. The work presents a gluon dominance model, in which the hadronization stage is described phenomenologically. Within the framework of the model (“Thermalization” project), based on data of <i>pp</i> interactions in the range of high multiplicity, the active role of a gluon component in the production of secondary particles is confirmed. The ratio between the quark emission of a gluon to the gluon fission is estimated. A number of collective phenomena are observed in this region: the production of a pion (Bose–Einstein) condensate, signals that we interpret as the Cherenkov radiation of gluons, the disappearance of leading particles. The study of the gluon structure of the proton and the search for collective phenomena in <span>(pp)</span> collisions can be carried out at the SPD facility of the future NICA collider (JINR, Dubna).</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700588
A. I. Titov
Abstract
The polarization of recoil photon ((gamma {kern 1pt} ')) in the non-linear Compton process (e + vec {L} to vec {gamma }{kern 1pt} ',, + e{kern 1pt} ') in the interaction of a relativistic electron with a linearly polarized laser beam ((vec {L})) is analized. Our consideration is done in the line of envisaged LUXE experiment.
Abstract The polarization of recoil photon ((gamma {kern 1pt} ')) in the non-linear Compton process (e + vec {L} to vec {gamma }{kern 1pt} ',, + e{kern 1pt} ') in the interaction of a relativistic electron with a linearly polarized laser beam ((vec {L})) is analized.我们是按照设想中的 LUXE 实验的思路进行研究的。
{"title":"Effects of Photon Polarizations in Non-Linear Compton Process","authors":"A. I. Titov","doi":"10.1134/s1063779624700588","DOIUrl":"https://doi.org/10.1134/s1063779624700588","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The polarization of recoil photon (<span>(gamma {kern 1pt} ')</span>) in the non-linear Compton process <span>(e + vec {L} to vec {gamma }{kern 1pt} ',, + e{kern 1pt} ')</span> in the interaction of a relativistic electron with a linearly polarized laser beam (<span>(vec {L})</span>) is analized. Our consideration is done in the line of envisaged LUXE experiment.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s106377962470062x
A. Korobitsyn
Abstract
One of the primary goals of STAR’s experimental program at the Relativistic Heavy-Ion Collider (RHIC) is the investigation of Quantum chromodynamics (QCD) phase properties. These include the search for the location of QCD critical point and the predicted first order phase transition between Quark Gluon Plasma (QGP) and hadron gas. To make a detailed scan on the phase diagram, RHIC has performed two phases of the Beam Energy Scan program colliding gold nuclei at various nucleon-nucleon center of mass energies over the range from 62.4 to 7.7 GeV in BES-I, from 54.4 to 7.7 GeV in BES-II in collider mode and from 13.7 to 3 GeV in fixed-target (FXT) mode. This report will summarize some of the results obtained from BES-I and BES-II.
{"title":"STAR Experiment Results from BES Program","authors":"A. Korobitsyn","doi":"10.1134/s106377962470062x","DOIUrl":"https://doi.org/10.1134/s106377962470062x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>One of the primary goals of STAR’s experimental program at the Relativistic Heavy-Ion Collider (RHIC) is the investigation of Quantum chromodynamics (QCD) phase properties. These include the search for the location of QCD critical point and the predicted first order phase transition between Quark Gluon Plasma (QGP) and hadron gas. To make a detailed scan on the phase diagram, RHIC has performed two phases of the Beam Energy Scan program colliding gold nuclei at various nucleon-nucleon center of mass energies over the range from 62.4 to 7.7 GeV in BES-I, from 54.4 to 7.7 GeV in BES-II in collider mode and from 13.7 to 3 GeV in fixed-target (FXT) mode. This report will summarize some of the results obtained from BES-I and BES-II.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-18DOI: 10.1134/s1063779624700679
D. A. Baranov
Abstract
The first physical run of the BM@N (Baryonic Matter at Nuclotron) experiment, conducted in early 2023, was aimed at obtaining certain results stated in the research program of the NICA project (Nuclotron-based Ion Collider fAcility). Due to the increased multiplicity compared to previous runs, the physical event simulation algorithms for the inner tracking system detectors required significant changes. This article discusses the features of detailed modeling, which involves the use of Monte Carlo methods to calculate the trajectories of charged particles passing through matter in conjunction with developed algorithms for the formation of signal clusters on microstrip planes of the detectors of the inner tracking system.
{"title":"Detailed Simulation of the Response of Inner Tracking Detectors for the First Physics Run in the BM@N Experiment","authors":"D. A. Baranov","doi":"10.1134/s1063779624700679","DOIUrl":"https://doi.org/10.1134/s1063779624700679","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The first physical run of the BM@N (Baryonic Matter at Nuclotron) experiment, conducted in early 2023, was aimed at obtaining certain results stated in the research program of the NICA project (Nuclotron-based Ion Collider fAcility). Due to the increased multiplicity compared to previous runs, the physical event simulation algorithms for the inner tracking system detectors required significant changes. This article discusses the features of detailed modeling, which involves the use of Monte Carlo methods to calculate the trajectories of charged particles passing through matter in conjunction with developed algorithms for the formation of signal clusters on microstrip planes of the detectors of the inner tracking system.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142202408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-06DOI: 10.1134/s1063779624030493
A. Khvedelidze, A. Torosyan
Abstract
We consider the nonclassicality distance indicator of a state in finite-dimensional quantum systems which is evaluating a state nonclassicality by its remoteness from the set of “classical states”. The latter are identified with those states whose Wigner function is non-negative. The corresponding Wigner function’s positivity polytope in the simplex of qudit eigenvalues is introduced and the representation for the nonclassicality distance indicator as a piecewise function is derived. The results are exemplified by the qutrit case.
{"title":"On the Nonclassicality Distance Indicator of Qudits","authors":"A. Khvedelidze, A. Torosyan","doi":"10.1134/s1063779624030493","DOIUrl":"https://doi.org/10.1134/s1063779624030493","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We consider the nonclassicality distance indicator of a state in finite-dimensional quantum systems which is evaluating a state nonclassicality by its remoteness from the set of “classical states”. The latter are identified with those states whose Wigner function is non-negative. The corresponding Wigner function’s positivity polytope in the simplex of qudit eigenvalues is introduced and the representation for the nonclassicality distance indicator as a piecewise function is derived. The results are exemplified by the qutrit case.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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