Effect of relaxation time on the squeezed correlations of bosons for evolving sources in relativistic heavy-ion collisions

Wei-Ning Zhang; Peng-Zhi Xu

doi:10.1007/s41365-022-01005-1

Your Location：

Home >

Browse articles >

Effect of relaxation time on the squeezed correlations of bosons for evolving sources in relativistic heavy-ion collisions

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH | Updated：2022-03-18

- Effect of relaxation time on the squeezed correlations of bosons for evolving sources in relativistic heavy-ion collisions
- Nuclear Science and Techniques Vol. 33, Issue 2, Article number: 22(2022)
- Affiliations：
  
  1.School of Physics, Dalian University of Technology, Dalian 116024, China
  2.College of Computer Science and Technology, Jilin Normal University, Siping 136000, China
- Author bio：
  
  wnzhang@dlut.edu.cn
- Funds：
- DOI：10.1007/s41365-022-01005-1
  CLC：
Scan for full text
Wei-Ning Zhang, Peng-Zhi Xu. Effect of relaxation time on the squeezed correlations of bosons for evolving sources in relativistic heavy-ion collisions. [J]. Nuclear Science and Techniques 33(2):22(2022)
DOI：

Wei-Ning Zhang, Peng-Zhi Xu. Effect of relaxation time on the squeezed correlations of bosons for evolving sources in relativistic heavy-ion collisions. [J]. Nuclear Science and Techniques 33(2):22(2022) DOI： 10.1007/s41365-022-01005-1.

摘要

Abstract

The squeezed back-to-back correlation (SBBC) of a boson-antiboson pair is sensitive to the time distribution of the particle-emitting source, and the SBBC function for an evolving source is expected to be affected by the relaxation time of the system. In this study, we investigated the effect of relaxation time on the SBBC function. We propose a method for calculating the SBBC function with relaxation-time approximation for evolving sources. SBBC functions of , $D^{0} {\bar{D}}^{0}$ , in relativistic heavy-ion collisions were investigated using a hydrodynamic model. We found that the relaxation time reduces the amplitudes of the SBBC functions. This becomes apparent for long relaxation times and large initial relative deviations of the chaotic and squeezed amplitudes from their equilibrium values in the temporal steps.

关键词

Keywords

Relaxation timeSqueezed back-to-back correlationEvolving sourceRelativistic heavy-ion collisions

references

M. Asakawa and T. Csörgő, Strangeness correlation: A clue to hadron modification in dense matter? Heavy Ion Physics 4, 233 (1996). arXiv: hep-ph/9612331.

M. Asakawa, T. Csörgő and M. Gyulassy, Squeezed correlations and spectra for mass-shifted bosons. Phys. Rev. Lett. 83, 4013 (1999). doi: 10.1103/PhysRevLett.83.4013http://doi.org/10.1103/PhysRevLett.83.4013

S.S. Padula, G. Krein, T. Csörgő et al., Back-to-back correlations for finite expanding fireballs. Phys. Rev. C 73, 044906 (2006). doi: 10.1103/PhysRevC.73.044906http://doi.org/10.1103/PhysRevC.73.044906

D. M. Dudek and S. S. Padula, Squeezed K+K- correlations in high energy heavy ion collisions. Phys. Rev. C 82, 034905 (2010). doi: 10.1103/PhysRevC.82.034905http://doi.org/10.1103/PhysRevC.82.034905

Y. Zhang, J. Yang, W. N. Zhang, Squeezed correlations of ϕ meson pairs for hydrodynamic sources in high-energy heavy-ion collisions. Phys. Rev. C 92, 024906 (2015). doi: 10.1103/PhysRevC.92.024906http://doi.org/10.1103/PhysRevC.92.024906

Y. Zhang and W. N. Zhang, Predictions for squeezed back-to-back correlations of ϕϕ and K+K- in high-energy heavy-ion collisions by event-by-event hydrodynamics. Eur. Phys. J. C 76, 419 (2016). doi: 10.1140/epjc/s10052-016-4270-yhttp://doi.org/10.1140/epjc/s10052-016-4270-y

S.S. Padula, D.M. Dudek, Jr.O. Socolowski, Squeezed correlations of strange particles–antiparticles. J. Phys. G 37, 094056 (2010). doi: 10.1088/0954-3899/37/9/094056http://doi.org/10.1088/0954-3899/37/9/094056

A.G. Yang, Y. Zhang, L. Cheng et al., Squeezed back-to-back correlation of $D^{0} {\bar{D}}^{0}$ in relativistic heavy-ion collisions. Chin. Phys. Lett. 35, 052501 (2018). doi: 10.1088/0256-307X/35/5/052501http://doi.org/10.1088/0256-307X/35/5/052501

P.Z. Xu, W.N. Zhang, Y. Zhang, Squeezed back-to-back correlation between bosons and antibosons with different in-medium masses in high-energy heavy-ion collisions. Phys. Rev. C 99, 011902(R) (2019). doi: 10.1103/PhysRevC.99.011902http://doi.org/10.1103/PhysRevC.99.011902

P. Z. Xu and W. N. Zhang, Squeezed back-to-back correlations of bosons with nonzero widths in relativistic heavy-ion collisions. Phys. Rev. C 100, 014907 (2019). doi: 10.1103/PhysRevC.100.014907http://doi.org/10.1103/PhysRevC.100.014907

H. Song, U. Heinz, Suppression of elliptic flow in a minimally viscous quark–gluon plasma. Phys. Lett. B 658, 279 (2008). doi: 10.1016/j.physletb.2007.11.019http://doi.org/10.1016/j.physletb.2007.11.019

H. Song, U. Heinz, Causal viscous hydrodynamics in 2 + 1 dimensions for relativistic heavy-ion collisions. Phys. Rev. C 77, 064901 (2008). doi: 10.1103/PhysRevC.77.064901http://doi.org/10.1103/PhysRevC.77.064901

C. Shen, Z. Qiu, H. Song et al., The iEBE-VISHNU code package for relativistic heavy-ion collisions. arXiv:1409.8164; https://u.osu.edu/vishnu/https://u.osu.edu/vishnu/.

C. Shen, U. Heinz, P. Huovinen et al., Radial and elliptic flow in Pb + Pb collisions at energies available at the CERN Large Hadron Collider from viscous hydrodynamics. Phys. Rev. C 84, 044903 (2011). doi: 10.1103/PhysRevC.84.044903http://doi.org/10.1103/PhysRevC.84.044903

J. Qian, U. Heinz, J. Liu, Mode-coupling effects in anisotropic flow in heavy-ion collisions. Phys. Rev. C 93, 064901 (2016). doi: 10.1103/PhysRevC.93.064901http://doi.org/10.1103/PhysRevC.93.064901

L. Adamczyk, J.K. Adkins, G. Agakishiev et al. (STAR Collaboration), Observation of D0 Meson Nuclear Modifications in Au+Au Collisions at $\sqrt{s_{NN}} = 200 GeV$ . Phys. Rev. Lett. 113, 142301 (2014). doi: 10.1103/PhysRevLett.113.142301http://doi.org/10.1103/PhysRevLett.113.142301

C. Fuchs, B. V. Martemyanov, A. Faessler et al., D-mesons and charmonium states in hot pion matter. Phys. Rev. C 73, 035204 (2006). doi: 10.1103/PhysRevC.73.035204http://doi.org/10.1103/PhysRevC.73.035204

B.V. Martemyanov, A. Faessler, C. Fuchs et al., Medium modifications of kaons in pion matter. Phys. Rev. Lett. 93, 052301 (2004). doi: 10.1103/PhysRevLett.93.052301http://doi.org/10.1103/PhysRevLett.93.052301

Z.W. Lin, C.M. Ko, B.A. Li et al., Multiphase transport model for relativistic heavy ion collisions. Phys. Rev. C 72, 064901 (2005). doi: 10.1103/PhysRevC.72.064901http://doi.org/10.1103/PhysRevC.72.064901

H. Wang and J. H. Chen, Study on open charm hadron production and angular correlation in high-energy nuclear collisions. Nucl. Sci. Tech. 32, 2 (2021). doi: 10.1007/s41365-020-00839-xhttp://doi.org/10.1007/s41365-020-00839-x

H. C. Song, S. A. Bass, and U. Heinz, Viscous QCD matter in a hybrid hydrodynamic+Boltzmann approach. Phys. Rev. C 83, 024912 (2011). doi: 10.1103/PhysRevC.83.024912http://doi.org/10.1103/PhysRevC.83.024912

I. A. Karpenko, P. Huovinen, H. Petersen et al., Estimation of the shear viscosity at finite net-baryon density from A+A collision data at $\sqrt{s_{NN}} = 7.7$ --200 GeV. Phys. Rev. C 91, 064901 (2015). doi: 10.1103/PhysRevC.91.064901http://doi.org/10.1103/PhysRevC.91.064901

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Recent developments in chiral and spin polarization effects in heavy-ion collisions

Influence of α-clustering nuclear structure on the rotating collision system

Search for the QCD critical point with fluctuations of conserved quantities in relativistic heavy-ion collisions at RHIC: An overview

Novel quantum phenomena induced by strong magnetic fields in heavy-ion collisions

Shear viscosity of nuclear matter

Related Author

No data

Related Institution

Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University

Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University

Department of Modern Physics, University of Science and Technology of China

Shanghai Institute of Applied Physics, Chinese Academy of Sciences

Department of Physics and Astronomy, University of California

Address：Editorial Office of NST, 2019 Jialuo Road, Jiading, Shanghai 201800, China Postal code：201800
Email：nst@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰