Multiplicity dependence of inclusive J/ψ production at midrapidity in pp collisions at √s = 13 TeV
Finna-arvio
Multiplicity dependence of inclusive J/ψ production at midrapidity in pp collisions at √s = 13 TeV
1-s2.0-S037026932030561X-main.pdf
(Jyväskylän yliopisto - JYX)
Measurements of the inclusive J/ψ yield as a function of charged-particle pseudorapidity density dNch/dη in pp collisions at √s=13 TeV with ALICE at the LHC are reported. The J/ψ meson yield is measured at midrapidity (|y|<0.9) in the dielectron channel, for events selected based on the charged-particle multiplicity at midrapidity (|η|<1) and at forward rapidity (−3.7<−1.7 and 2.8<5.1); both observables are normalized to their corresponding averages in minimum bias events. The increase of the normalized J/ψ yield with normalized dNch/dη is significantly stronger than linear and dependent on the transverse momentum. The data are compared to theoretical predictions, which describe the observed trends well, albeit not always quantitatively.
Tallennettuna:
Kieli |
englanti |
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Sarja | Physics Letters B |
Aiheet | |
ISSN |
0370-2693 |