Two-pion femtoscopic correlations in Be plus Be collisions at √sNN=16.84 GeV measured by the NA61/SHINE at CERN

被引：0

作者：

Adhikary, H. ^{[13
]}

Adrich, P. ^{[15
]}

Allison, K. K. ^{[29
]}

Amin, N. ^{[5
]}

Andronov, E. V. ^{[25
]}

Anticic, T. ^{[3
]}

Arsene, I. -C. ^{[12
]}

Bajda, M. ^{[16
]}

Balkova, Y. ^{[18
]}

Baszczyk, M. ^{[17
]}

Battaglia, D. ^{[28
]}

Bazgir, A. ^{[13
]}

Bhosale, S. ^{[14
]}

Bielewicz, M. ^{[15
]}

Blondel, A. ^{[4
]}

Bogomilov, M. ^{[2
]}

Bondar, Y. ^{[13
]}

Bostan, N. ^{[28
]}

Brandin, A. ^{[24
]}

Brylinski, W. ^{[21
]}

Brzychczyk, J. ^{[16
]}

Buryakov, M. ^{[23
]}

Camino, A. F. ^{[31
]}

Cirkovic, M. ^{[26
]}

Csanad, M. ^{[8
]}

Cybowska, J. ^{[21
]}

Czopowicz, T. ^{[13
,21
]}

Dalmazzone, C. ^{[4
]}

Davis, N. ^{[14
]}

Dmitriev, A. ^{[23
]}

von Doetinchem, P. ^{[30
]}

Dominik, W. ^{[19
]}

Dorosz, P. ^{[17
]}

Dumarchez, J. ^{[4
]}

Engel, R. ^{[5
]}

Feofilov, G. A. ^{[25
]}

Fields, L. ^{[28
]}

Fodor, Z. ^{[7
,20
]}

Friend, M. ^{[9
]}

Garibov, A. ^{[1
]}

Gazdzicki, M. ^{[6
,13
]}

Golosov, O. ^{[24
]}

Golovatyuk, V. ^{[23
]}

Golubeva, M. ^{[22
]}

Grebieszkow, K. ^{[21
]}

Guber, F. ^{[22
]}

Igolkin, S. N. ^{[25
]}

Ilieva, S. ^{[2
]}

Ivashkin, A. ^{[22
]}

Izvestnyy, A. ^{[22
]}

机构：

[1] Natl Ctr Nucl Res, Baku, Azerbaijan

[2] Univ Sofia, Fac Phys, Sofia, Bulgaria

[3] Rudjer Boskovic Inst, Zagreb, Croatia

[4] Univ Paris VI & VII, LPNHE, Paris, France

[5] Karlsruhe Inst Technol, Karlsruhe, Germany

[6] Goethe Univ Frankfurt, Frankfurt, Germany

[7] Wigner Res Ctr Phys, Budapest, Hungary

[8] Eotvos Lorand Univ, Budapest, Hungary

[9] Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan

[10] Okayama Univ, Okayama, Japan

[11] Univ Bergen, Bergen, Norway

[12] Univ Oslo, Oslo, Norway

[13] Jan Kochanowski Univ, Kielce, Poland

[14] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland

[15] Natl Ctr Nucl Res, Warsaw, Poland

[16] Jagiellonian Univ, Krakow, Poland

[17] AGH Univ Sci & Technol, Krakow, Poland

[18] Univ Silesia, Katowice, Poland

[19] Univ Warsaw, Warsaw, Poland

[20] Univ Wroclaw, Wroclaw, Poland

[21] Warsaw Univ Technol, Warsaw, Poland

[22] Inst Nucl Res, Moscow, Russia

[23] Joint Inst Nucl Res, Dubna, Russia

[24] Natl Res Nucl Univ, Moscow Engn Phys Inst, Moscow, Russia

[25] St Petersburg State Univ, St Petersburg, Russia

[26] Univ Belgrade, Belgrade, Serbia

[27] Fermilab Natl Accelerator Lab, Batavia, IL USA

[28] Univ Notre Dame, Notre Dame, IN USA

[29] Univ Colorado, Boulder, CO USA

[30] Univ Hawaii Manoa, Honolulu, HI USA

[31] Univ Pittsburgh, Pittsburgh, PA USA

来源：

EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 10期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会; 匈牙利科学研究基金会;

关键词：

BOSE-EINSTEIN CORRELATIONS; HEAVY-ION COLLISIONS; FINAL-STATE INTERACTION; COULOMB CORRECTIONS; INTERFEROMETRY; SPECTRA; MODEL; EQUILIBRIUM; HADRON;

D O I：

10.1140/epjc/s10052-023-11997-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

This paper reports measurements of two-pion femtoscopic correlations in Be+Be collisions at a beam momentum of 150A GeV/c (energy available in the center of-mass system for nucleon pair root(NN)-N-s = 16.84 GeV) by the NA61/SHINE experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a Levy distributed source model. The transverse mass dependence of the Levy source parameters is presented, and their possible theoretical interpretations are discussed. The results show that the Levy exponent alpha is approximately constant as a function of mT , and far from both the Gaussian case of alpha = 2 or the conjectured value at the critical endpoint, alpha = 0.5. The radius scale parameter R shows a slight decrease in mT , which can be explained as a signature of transverse flow. Finally, an approximately constant trend of the intercept parameter lambda as a function of mT was observed, similar to previous NA44 S + Pb results (obtained with a Gaussian approximation, but unlike RHIC results).

引用

页数：15

共 16 条

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