TY  - JOUR
A1  - Sun, Kai-Jia
A1  - Ko, Che Ming
A1  - Dönigus, Benjamin
T1  - Suppression of light nuclei production in collisions of small systems at the Large Hadron Collider
T2  - Physics Letters B
N2  - We show that the recently observed suppression of the yield ratio of deuteron to proton and of helium-3 to proton in p+p collisions compared to those in p+Pb or Pb+Pb collisions by the ALICE Collaboration at the Large Hadron Collider (LHC) can be explained if light nuclei are produced from the coalescence of nucleons at the kinetic freeze-out of these collisions. This suppression is attributed to the non-negligible sizes of deuteron and helium-3 compared to the size of the nucleon emission source in collisions of small systems, which reduces the overlap of their internal wave functions with those of nucleons. The same model is also used to study the production of triton and hypertriton in heavy-ion collisions at the LHC. Compared to helium-3 in events of low charged particle multiplicity, the triton is less suppressed due to its smaller size and the hypertriton is even more suppressed as a result of its much larger size.
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54449
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-544492
SN  - 1873-2445
SN  - 0370-2693
VL  - 792.2019
SP  - 132
EP  - 137
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -