TY - JOUR
T1 - Multiplicity and rapidity dependence of K∗ (892)0 and ϕ(1020) production in p–Pb collisions at √sNN = 5.02 TeV
AU - ALICE Collaboration
AU - Colburn, Jonathan
AU - Evans, Professor
AU - Jusko, Anton
AU - Krivda, Marian
AU - Kvapil, Jakub
AU - Lietava, Roman
AU - Ragoni, Simone
AU - Villalobos Baillie, Orlando
PY - 2023/6/27
Y1 - 2023/6/27
N2 - The transverse-momentum (pT) spectra of K∗(892)0
and ϕ(1020) measured with the ALICE detector up to pT = 16 GeV/c in the
rapidity range −1.2<y<0.3, in p–Pb collisions at the center-of-mass
energy per nucleon–nucleon collision √sNN = 5.02 TeV are presented as a
function of charged particle multiplicity and rapidity. The measured pT distributions
show a dependence on both multiplicity and rapidity at low pT whereas no
significant dependence is observed at high pT. A rapidity dependence is
observed in the pT -integrated yield (dN/dy), whereas the mean transverse momentum
(⟨pT⟩)
shows a flat behavior as a function of rapidity. The rapidity asymmetry (Yasym )
at low pT (< 5 GeV/c) is more significant for higher multiplicity classes.
At high pT, no significant rapidity asymmetry is observed in any of the
multiplicity classes. Both K∗(892)0 and ϕ(1020) show similar
Yasym . The nuclear modification factor (QCP) as a function of pT shows a
Cronin-like enhancement at intermediate pT , which is more prominent at higher
rapidities (Pb-going direction) and in higher multiplicity classes. At high pT (>
5 GeV/c ), the QCP values are greater than unity and no significant rapidity
dependence is observed.
AB - The transverse-momentum (pT) spectra of K∗(892)0
and ϕ(1020) measured with the ALICE detector up to pT = 16 GeV/c in the
rapidity range −1.2<y<0.3, in p–Pb collisions at the center-of-mass
energy per nucleon–nucleon collision √sNN = 5.02 TeV are presented as a
function of charged particle multiplicity and rapidity. The measured pT distributions
show a dependence on both multiplicity and rapidity at low pT whereas no
significant dependence is observed at high pT. A rapidity dependence is
observed in the pT -integrated yield (dN/dy), whereas the mean transverse momentum
(⟨pT⟩)
shows a flat behavior as a function of rapidity. The rapidity asymmetry (Yasym )
at low pT (< 5 GeV/c) is more significant for higher multiplicity classes.
At high pT, no significant rapidity asymmetry is observed in any of the
multiplicity classes. Both K∗(892)0 and ϕ(1020) show similar
Yasym . The nuclear modification factor (QCP) as a function of pT shows a
Cronin-like enhancement at intermediate pT , which is more prominent at higher
rapidities (Pb-going direction) and in higher multiplicity classes. At high pT (>
5 GeV/c ), the QCP values are greater than unity and no significant rapidity
dependence is observed.
U2 - 10.1140/epjc/s10052-023-11449-3
DO - 10.1140/epjc/s10052-023-11449-3
M3 - Article
SN - 1434-6044
VL - 83
JO - European Physical Journal C
JF - European Physical Journal C
IS - 6
M1 - 540
ER -