Fast resonance decays in nuclear collisions

Mazeliauskas, Aleksas; Floerchinger, Stefan; Grossi, Eduardo; Teaney, Derek

doi:10.1016/j.nuclphysa.2020.121988

Fast resonance decays in nuclear collisions

Journal Article · Thu Dec 10 00:00:00 EST 2020 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2020.121988· OSTI ID:2280807

Mazeliauskas, Aleksas ^[1]; Floerchinger, Stefan ^[2]; ^[3]; Teaney, Derek ^[4]

European Organization for Nuclear Research (CERN), Geneva (Switzerland); Heidelberg Univ. (Germany); Stony Brook University
Heidelberg Univ. (Germany)
Heidelberg Univ. (Germany); Stony Brook Univ., NY (United States)
Stony Brook Univ., NY (United States)

Here, we present a new method to calculate the final decay spectrum of direct resonance decays directly from hydrodynamic fields on a freeze-out surface. The method is based on identifying components of the final particle spectrum that transform in an irreducible way under rotations in the fluid-restframe. Corresponding distribution functions can be pre-computed including all resonance decays. Just a few of easily tabulated scalar functions then determine the Lorentz invariant decay spectrum from each space-time point, and simple integrals of these scalar functions over the freeze-out surface determine the final decay products. This by-passes numerically costly event-by-event calculations of the intermediate resonances. The method is of considerable practical use for making realistic data to model comparisons of the identified particle yields and flow harmonics, and for studying the viscous corrections to the freeze-out distribution function.

View Accepted Manuscript (DOE)

Research Organization:: Stony Brook Univ., NY (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-88ER40388

OSTI ID:: 2280807

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Vol. 1005; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (15)

Is there a low-p T “anomaly” in the pion momentum spectra from relativistic nuclear collisions? Sollfrank, J.; Koch, P.; Heinz, U. Zeitschrift für Physik C Particles and Fields, Vol. 52, Issue 4 https://doi.org/10.1007/BF01562334	journal	December 1991
The influence of resonance decays on the pT spectra from heavy-ion collisions Sollfrank, Josef; Koch, Peter; Heinz, Ulrich Physics Letters B, Vol. 252, Issue 2 https://doi.org/10.1016/0370-2693(90)90870-C	journal	December 1990
Microscopic models for ultrarelativistic heavy ion collisions Bass, S. Progress in Particle and Nuclear Physics, Vol. 41 https://doi.org/10.1016/S0146-6410(98)00058-1	journal	January 1998
SHARE: Statistical hadronization with resonances Torrieri, G.; Steinke, S.; Broniowski, W. Computer Physics Communications, Vol. 167, Issue 3 https://doi.org/10.1016/j.cpc.2005.01.004	journal	May 2005
THERMINATOR 2: THERMal heavy IoN generATOR 2 Chojnacki, Mikołaj; Kisiel, Adam; Florkowski, Wojciech Computer Physics Communications, Vol. 183, Issue 3 https://doi.org/10.1016/j.cpc.2011.11.018	journal	March 2012
Fluid dynamics of heavy ion collisions with mode expansion Floerchinger, Stefan; Grossi, Eduardo; Lion, Jorrit Physical Review C, Vol. 100, Issue 1 https://doi.org/10.1103/PhysRevC.100.014905	journal	July 2019
Temperature and fluid velocity on the freeze-out surface from π , K , and p spectra in p p , p -Pb, and Pb-Pb collisions Mazeliauskas, Aleksas; Vislavicius, Vytautas Physical Review C, Vol. 101, Issue 1 https://doi.org/10.1103/PhysRevC.101.014910	journal	January 2020
Fast hadron freeze-out generator Amelin, N. S.; Lednicky, R.; Pocheptsov, T. A. Physical Review C, Vol. 74, Issue 6 https://doi.org/10.1103/PhysRevC.74.064901	journal	December 2006
Alternative ansatz to wounded nucleon and binary collision scaling in high-energy nuclear collisions Moreland, J. Scott; Bernhard, Jonah E.; Bass, Steffen A. Physical Review C, Vol. 92, Issue 1 https://doi.org/10.1103/PhysRevC.92.011901	journal	July 2015
Effect of the QCD equation of state and strange hadronic resonances on multiparticle correlations in heavy ion collisions Alba, P.; Mantovani Sarti, V.; Noronha, J. Physical Review C, Vol. 98, Issue 3 https://doi.org/10.1103/PhysRevC.98.034909	journal	September 2018
Single-particle distribution in the hydrodynamic and statistical thermodynamic models of multiparticle production Cooper, Fred; Frye, Graham Physical Review D, Vol. 10, Issue 1 https://doi.org/10.1103/PhysRevD.10.186	journal	July 1974
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Physical Review D, Vol. 98, Issue 3 https://doi.org/10.1103/PhysRevD.98.030001	journal	August 2018
Pion, Kaon, and Proton Production in Central Pb-Pb Collisions at s NN = 2.76 TeV Abelev, B.; Adam, J.; Adamová, D. Physical Review Letters, Vol. 109, Issue 25 https://doi.org/10.1103/PhysRevLett.109.252301	journal	December 2012
Mass Hierarchy in Identified Particle Distributions in Proton-Lead Collisions Bożek, Piotr; Broniowski, Wojciech; Torrieri, Giorgio Physical Review Letters, Vol. 111, Issue 17 https://doi.org/10.1103/PhysRevLett.111.172303	journal	October 2013
Fast resonance decays in nuclear collisions Mazeliauskas, Aleksas; Floerchinger, Stefan; Grossi, Eduardo The European Physical Journal C, Vol. 79, Issue 3 https://doi.org/10.1140/epjc/s10052-019-6791-7	journal	March 2019

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