Light nuclei femtoscopy and baryon interactions in 3 GeV Au+Au collisions at RHIC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00636318" target="_blank" >RIV/61389005:_____/25:00636318 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/25:00388616

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0370269325001728" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269325001728</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2025.139412" target="_blank" >10.1016/j.physletb.2025.139412</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Light nuclei femtoscopy and baryon interactions in 3 GeV Au+Au collisions at RHIC

Popis výsledku v původním jazyce

We report the measurements of proton-deuteron (p-d) and deuteron-deuteron (d-d) correlation functions in Au+Au collisions at root s(NN) = 3 GeV using fixed-target mode with the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). For the first time, the source size (R-G), scattering length (f(0)), and effective range (d(0)) are extracted from the measured correlation functions with a simultaneous fit. The spin-averaged f(0) for p-d and d-d interactions are determined to be -5.28 +/- 0.11(stat.) +/- 0.82(syst.) fm and -2.62 +/- 0.02(stat.) +/- 0.24(syst.) fm, respectively. The measured p-d interaction is consistent with theoretical calculations and low-energy scattering experiment results, demonstrating the feasibility of extracting interaction parameters using the femtoscopy technique. The reasonable agreement between the experimental data and the calculations from the transport model indicates that deuteron production in these collisions is primarily governed by nucleon coalescence.

Název v anglickém jazyce

Light nuclei femtoscopy and baryon interactions in 3 GeV Au+Au collisions at RHIC

Popis výsledku anglicky

We report the measurements of proton-deuteron (p-d) and deuteron-deuteron (d-d) correlation functions in Au+Au collisions at root s(NN) = 3 GeV using fixed-target mode with the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). For the first time, the source size (R-G), scattering length (f(0)), and effective range (d(0)) are extracted from the measured correlation functions with a simultaneous fit. The spin-averaged f(0) for p-d and d-d interactions are determined to be -5.28 +/- 0.11(stat.) +/- 0.82(syst.) fm and -2.62 +/- 0.02(stat.) +/- 0.24(syst.) fm, respectively. The measured p-d interaction is consistent with theoretical calculations and low-energy scattering experiment results, demonstrating the feasibility of extracting interaction parameters using the femtoscopy technique. The reasonable agreement between the experimental data and the calculations from the transport model indicates that deuteron production in these collisions is primarily governed by nucleon coalescence.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LM2023034" target="_blank" >LM2023034: Brookhavenská národní laboratoř – účast České republiky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

864

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

139412

Kód UT WoS článku

001494303400001

EID výsledku v databázi Scopus

2-s2.0-105001473666