Электронный каталог

Статья

Guskov, A.V.
K-Meson Production and Isospin Symmetry in pp and AA Collisions / A.V.Guskov, G.I.Lykasov, A.I.Malakhov, A.A.Zaitsev // Физика элементарных частиц и атомного ядра. – 2026. – Т. 57, № 5. – P. 983. – URL: https://www1.jinr.ru/Pepan/v-57-5/23_Guskov_ann.pdf. – The production of K mesons in pp and AA collisions at high energies is analyzed. We show that the ratio R&sub(K) =(*s&sub(K+) + *s&sub(K−) )/2*sK&sup(0)&sub(S) calculated within the similarity approach, including the gluon TMD at low QCD scales [5], and using the Lund model in the form of MC generator PYTHIA [14] is above 1 even at the conservation of the isospin symmetry. It is about 1.18 at *%s = 11.9 GeV (the NA61/SHINE data [1]) and it decreases up to 1, when the energy increases up to a few TeV (ALICE data). The reason of this is related to the dynamics of the kaon production. This energy behavior of R&sub(K) practically does not depend on the sort of beam or target.



Спец.(статьи,препринты) = С 346.5а - Образование гиперонов и К-мезонов частицами и гамма-квантами
ОИЯИ = ОИЯИ (JINR)2026