<i>K</i>*(892)<SUP>0</SUP> and φ(1020) production at midrapidity in <i>pp</i> collisions at √<i>s</i>=8 TeV



Acharya, S, Acosta, FT, Adam, J, Adamova, D, Adler, A, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N
et al (show 1015 more authors) (2020) <i>K</i>*(892)<SUP>0</SUP> and φ(1020) production at midrapidity in <i>pp</i> collisions at √<i>s</i>=8 TeV. PHYSICAL REVIEW C, 102 (2). 024912-.

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Abstract

The production of K∗(892)0 and φ(1020) in pp collisions at s=8 TeV was measured by using Run 1 data collected by the ALICE collaboration at the CERN Large Hadron Collider (LHC). The pT-differential yields d2N/dydpT in the range 0<pT<20 GeV/c for K∗0 and 0.4<pT<16 GeV/c for φ have been measured at midrapidity, |y|<0.5. Moreover, improved measurements of the K∗0(892) and φ(1020) at s=7 TeV are presented. The collision energy dependence of pT distributions, pT-integrated yields, and particle ratios in inelastic pp collisions are examined. The results are also compared with different collision systems. The values of the particle ratios are found to be similar to those measured at other LHC energies. In pp collisions a hardening of the particle spectra is observed with increasing energy, but at the same time it is also observed that the relative particle abundances are independent of the collision energy. The pT-differential yields of K∗0 and φ in pp collisions at s=8 TeV are compared with the expectations of different Monte Carlo event generators.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 10 Sep 2021 12:35
Last Modified: 20 Jun 2024 18:53
DOI: 10.1103/PhysRevC.102.024912
Open Access URL: https://journals.aps.org/prc/abstract/10.1103/Phys...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3136630