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SUMMARY:Simulation-Based Feasibility Study of Isospin Effects with the HGN
 D at BM@N
DTSTART;VALUE=DATE-TIME:20261028T133500Z
DTEND;VALUE=DATE-TIME:20261028T135000Z
DTSTAMP;VALUE=DATE-TIME:20261019T011039Z
UID:indico-contribution-6331@cern.ch
DESCRIPTION:Speakers: Arseniy Shabanov ()\nThe Baryonic Matter at Nuclotro
 n (BM@N) is a fixed-target experiment (JINR\, Dubna) aimed at studying hea
 vy ion collisions at beam energies up to 4 A GeV. To extend its capabiliti
 es\, the Highly Granular Neutron Detector (HGND) [1] has been developed. T
 his detector will enable unique measurements of neutrons in the kinetic en
 ergy range of 0.3–4.0 GeV. These measurements will make it possible to e
 xplore the isospin term of the equation of state (EOS) of baryonic matter.
  The HGND comprises two arms\, each consisting of 8 layers of plastic scin
 tillator with copper absorber plates in between. Each scintillation layer 
 is assembled from an 11×11 matrix of individual cells\, providing high sp
 atial granularity and a time resolution of ~150 ps.\n\nAs an observable se
 nsitive to the isospin-dependent term of the EOS\, the ratio of neutron an
 d proton spectra was proposed [2]. To determine the experimental sensitivi
 ty\, Monte Carlo simulations of Xe+Cs collisions were performed. The simul
 ations were done using the SMASH [3] model at a beam kinetic energy of 2.5
  A GeV. A set of isospin symmetry potentials was used to study the differe
 nce in the spectra. The proton spectrum reconstruction procedure is alread
 y developed [4]. In this work\, the neutron spectrum reconstruction proced
 ure from HGND data is discussed. Special attention is paid to the neutron 
 spectrum reconstruction using a plastic absorber for background removal.\n
 \nReferences:\n1. S. Morozov et al.\, Nucl. Instrum. Meth. A 1072\, 170152
  (2025)\n2. Bao-An Li\, C. M. Ko\, Zhong-zhou Ren\, Phys. Rev. Lett. 78 (1
 997)\, 1644\n3. https://github.com/smash-transport/smash\n4. BM@N Collabor
 ation • S. Afanasiev (Dubna\, JINR) et al.\, JHEP 08 (2025)\, 095\n\nhtt
 ps://indico.particle.mephi.ru/event/626/contributions/6331/
LOCATION:Sevastopol Hotel
URL:https://indico.particle.mephi.ru/event/626/contributions/6331/
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