Collisional Broadening within a Hadronic Transport Approach

We explore the emergence of the collisional broadening of hadrons under the influence of different media using the hadronic transport approach SMASH (Simulating Many Accelerated Strongly interacting Hadrons), which employs vacuum properties and contains no a priori information about in-medium effect...

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Main Authors: Branislav Balinovic, Renan Hirayama, Hannah Elfner
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/9/9/414
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author Branislav Balinovic
Renan Hirayama
Hannah Elfner
author_facet Branislav Balinovic
Renan Hirayama
Hannah Elfner
author_sort Branislav Balinovic
collection DOAJ
description We explore the emergence of the collisional broadening of hadrons under the influence of different media using the hadronic transport approach SMASH (Simulating Many Accelerated Strongly interacting Hadrons), which employs vacuum properties and contains no a priori information about in-medium effects. In this context, we define collisional broadening as a decrease in the lifetime of hadrons, and it arises from an interplay between the cross-sections for inelastic processes and the available phase space. We quantify this effect for various hadron species, in both a thermal gas in equilibrium and in nuclear collisions. Furthermore, we distinguish the individual contribution of each process and verify the medium response to different vacuum assumptions; we see that the decay width that depends on the resonance mass leads to a larger broadening than a mass-independent scenario.
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spelling doaj.art-88511c798db34a738cc2283c77a42ec42023-11-19T13:17:39ZengMDPI AGUniverse2218-19972023-09-019941410.3390/universe9090414Collisional Broadening within a Hadronic Transport ApproachBranislav Balinovic0Renan Hirayama1Hannah Elfner2Institut für Theoretische Physik, Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, GermanyFrankfurt Institute for Advanced Studies, Ruth-Moufang-Strasse 1, 60438 Frankfurt am Main, GermanyInstitut für Theoretische Physik, Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, GermanyWe explore the emergence of the collisional broadening of hadrons under the influence of different media using the hadronic transport approach SMASH (Simulating Many Accelerated Strongly interacting Hadrons), which employs vacuum properties and contains no a priori information about in-medium effects. In this context, we define collisional broadening as a decrease in the lifetime of hadrons, and it arises from an interplay between the cross-sections for inelastic processes and the available phase space. We quantify this effect for various hadron species, in both a thermal gas in equilibrium and in nuclear collisions. Furthermore, we distinguish the individual contribution of each process and verify the medium response to different vacuum assumptions; we see that the decay width that depends on the resonance mass leads to a larger broadening than a mass-independent scenario.https://www.mdpi.com/2218-1997/9/9/414hadronic transportresonance propertiescollisional broadening
spellingShingle Branislav Balinovic
Renan Hirayama
Hannah Elfner
Collisional Broadening within a Hadronic Transport Approach
Universe
hadronic transport
resonance properties
collisional broadening
title Collisional Broadening within a Hadronic Transport Approach
title_full Collisional Broadening within a Hadronic Transport Approach
title_fullStr Collisional Broadening within a Hadronic Transport Approach
title_full_unstemmed Collisional Broadening within a Hadronic Transport Approach
title_short Collisional Broadening within a Hadronic Transport Approach
title_sort collisional broadening within a hadronic transport approach
topic hadronic transport
resonance properties
collisional broadening
url https://www.mdpi.com/2218-1997/9/9/414
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AT renanhirayama collisionalbroadeningwithinahadronictransportapproach
AT hannahelfner collisionalbroadeningwithinahadronictransportapproach