TY - JOUR
T1 - Method to evidence hypernuclear halos from a two-target interaction cross section measurement
AU - Velardita, Simone
AU - Alvarez-Pol, Hector
AU - Aumann, Thomas
AU - Ayyad, Yassid
AU - Duer, Meytal
AU - Hammer, Hans Werner
AU - Ji, Liancheng
AU - Obertelli, Alexandre
AU - Sun, Yelei
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/6
Y1 - 2023/6
N2 - We present a two-target measurement method to determine the interaction cross section of hypernuclei with a target nucleus. The method allows to extract from two independent measurements the production cross section of a given hypernucleus as well as its interaction cross section on a specific target. The latter is then further analyzed to deduce the matter radius of the hypernucleus. The sensitivity of the method has been investigated for the specific case of the lightest hyperhalo candidate hypertriton (Λ3 H) produced from 12 C+ 12 C collisions at 1.9 GeV/nucleon. Furthermore, its feasibility is demonstrated by detailed simulations for realistic experimental conditions at GSI/FAIR, using a dedicated HYDRA (HYpernuclei Decay at R 3 B Apparatus) time-projection chamber prototype. A precision of 15% or better in the interaction cross section can be achieved, allowing an extraction of the unknown Λ3 H matter radius and assessing its halo or non-halo character.
AB - We present a two-target measurement method to determine the interaction cross section of hypernuclei with a target nucleus. The method allows to extract from two independent measurements the production cross section of a given hypernucleus as well as its interaction cross section on a specific target. The latter is then further analyzed to deduce the matter radius of the hypernucleus. The sensitivity of the method has been investigated for the specific case of the lightest hyperhalo candidate hypertriton (Λ3 H) produced from 12 C+ 12 C collisions at 1.9 GeV/nucleon. Furthermore, its feasibility is demonstrated by detailed simulations for realistic experimental conditions at GSI/FAIR, using a dedicated HYDRA (HYpernuclei Decay at R 3 B Apparatus) time-projection chamber prototype. A precision of 15% or better in the interaction cross section can be achieved, allowing an extraction of the unknown Λ3 H matter radius and assessing its halo or non-halo character.
UR - http://www.scopus.com/inward/record.url?scp=85162972628&partnerID=8YFLogxK
U2 - 10.1140/epja/s10050-023-01050-3
DO - 10.1140/epja/s10050-023-01050-3
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AN - SCOPUS:85162972628
SN - 1434-6001
VL - 59
JO - European Physical Journal A
JF - European Physical Journal A
IS - 6
M1 - 139
ER -