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Long-range correlations between observables in a model with translational invariance in rapidity. / Belokurova, Svetlana; Vechernin, Vladimir.
в: Symmetry, Том 12, № 7, 1107, 07.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Long-range correlations between observables in a model with translational invariance in rapidity
AU - Belokurova, Svetlana
AU - Vechernin, Vladimir
N1 - Publisher Copyright: © 2020 by the authors.
PY - 2020/7
Y1 - 2020/7
N2 - We estimate the impact of the fixation of the total number of sources (quark-gluon strings) on the long-range rapidity correlations between different observables. In our approach this condition models the fixation of the collision centrality class, what is the usual practice in modern collider experiments, like Relativistic Heavy Ion Collider (RHIC), Large Hadron Collider (LHC) and so on. The estimates are obtained under the assumption of the translational invariance in rapidity, which is usually assumed in mid-rapidity region at high energies. Based on these assumptions, we are developing a technique for the analytical calculation of various average values of extensive and intense variables at high string densities on the transverse lattice, taking into account the effects of string fusion, leading to the formation of string clusters. Using this technique we calculate the asymptotes of the correlations coefficients both between the multiplicities and between the multiplicity and the event-mean transverse momentum of particles in two separated rapidity intervals. As a result, we found that fixing the total number of strings has a significant effect on the behavior of both types of correlations, especially in the case of a uniform distribution of strings in the transverse plane.
AB - We estimate the impact of the fixation of the total number of sources (quark-gluon strings) on the long-range rapidity correlations between different observables. In our approach this condition models the fixation of the collision centrality class, what is the usual practice in modern collider experiments, like Relativistic Heavy Ion Collider (RHIC), Large Hadron Collider (LHC) and so on. The estimates are obtained under the assumption of the translational invariance in rapidity, which is usually assumed in mid-rapidity region at high energies. Based on these assumptions, we are developing a technique for the analytical calculation of various average values of extensive and intense variables at high string densities on the transverse lattice, taking into account the effects of string fusion, leading to the formation of string clusters. Using this technique we calculate the asymptotes of the correlations coefficients both between the multiplicities and between the multiplicity and the event-mean transverse momentum of particles in two separated rapidity intervals. As a result, we found that fixing the total number of strings has a significant effect on the behavior of both types of correlations, especially in the case of a uniform distribution of strings in the transverse plane.
KW - Forward-backward correlations
KW - High energy
KW - Long-range rapidity correlations
KW - Multiparticle production
KW - Multiplicity
KW - Quark-gluon strings
KW - String fusion
KW - Strong interaction
KW - Translation invariance in rapidity
KW - Transverse momentum
KW - multiplicity
KW - transverse momentum
KW - forward-backward correlations
KW - multiparticle production
KW - quark-gluon strings
KW - COLLISIONS
KW - MULTIPLICITIES
KW - translation invariance in rapidity
KW - long-range rapidity correlations
KW - STRING FUSION
KW - FORWARD-BACKWARD CORRELATIONS
KW - RIDGE
KW - high energy
KW - TRANSVERSE-MOMENTUM
KW - DISTRIBUTIONS
KW - strong interaction
KW - CHARGED-PARTICLES
KW - string fusion
UR - http://www.scopus.com/inward/record.url?scp=85088556630&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/3d74a3a4-2030-3a0a-bcd9-a86cbcb48fa3/
U2 - 10.3390/sym12071107
DO - 10.3390/sym12071107
M3 - Article
AN - SCOPUS:85088556630
VL - 12
JO - Symmetry
JF - Symmetry
SN - 2073-8994
IS - 7
M1 - 1107
ER -
ID: 61239771