Электронный каталог

Статья

Acharya, S.
Measurement of *q Meson Production in pp Collisions at *%s=13 TeV / S.Acharya, B.Batyunya, R.A.Diaz, S.Grigoryan, A.Kondratyev, A.Kuznetsov, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, A.Vodopyanov, [ALICE Collab.]. – Text: electronic // Journal of High Energy Physics. – 2025. – Vol. 2025, No. 4. – P. 067. – URL: https://doi.org/10.1007/JHEP04(2025)067. – Bibliogr.: 63.

The p&sub(T)-differential cross section of ω meson production in pp collisions at *%s = 13 TeV at midrapidity (|y| < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < p&sub(T) < 50 GeV/c. The meson is reconstructed via the ω → π*+π*−π*0 decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating ω fragmentation using a broken SU(3) model. The ω/π*0 ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the p&sub(T) ranges of previously available measurements. A constant ratio of C&sup(ω/π*0) = 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 324.1д - Квантовая хромодинамика$
Спец.(статьи,препринты) = С 346.6 - Резонансы и новые частицы