ϒ suppression at forward rapidity in Pb–Pb collisions at sNN=5.02TeV
Nuclear Physics, ALICE, LHC
heavy ion: scattering
hiukkasfysiikka
Atomic
01 natural sciences
Particle and Plasma Physics
ALICE
nucleon nucleon
Mathematical Physics
Physics
ddc:530
VDP::Kjerne- og elementærpartikkelfysikk: 431
Particle and High Energy Physics
suppression
Nuclear and Plasma Physics
Nuclear & Particles Physics
:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]
Physical sciences
PRIRODNE ZNANOSTI. Fizika.
CERN LHC Coll
VDP::Nuclear and elementary particle physics: 431
Physical Sciences
Astronomical and Space Sciences
Nuclear and High Energy Physics
CERN Lab
quark-gluon plasma
QC1-999
VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
Mathematical sciences
transverse momentum
meson
530
0103 physical sciences
muon: pair
QUARK-GLUON PLASMA; TRANSVERSE-MOMENTUM DEPENDENCE; J/PSI SUPPRESSION; PP COLLISIONS; PERSPECTIVE
Nuclear
heavy ion: scattering ; muon: pair ; rapidity ; transverse momentum ; suppression ; nucleon nucleon ; CERN LHC Coll ; CERN Lab ; nucleus ; ALICE ; meson
VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431
ta114
nucleus
:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]
500
Molecular
QUARK-GLUON PLASMA; TRANSVERSE-MOMENTUM DEPENDENCE; J/PSI SUPPRESSION; UPSILON PRODUCTION; PP COLLISIONS; PERSPECTIVE
NATURAL SCIENCES. Physics.
rapidity
Pb–Pb collisions
QC Physics / fizika
upsilon mesons
charmonium suppression
DOI:
10.1016/j.physletb.2018.11.067
Publication Date:
2018-12-29T03:53:55Z
AUTHORS (1015)
ABSTRACT
Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb– Pb collisions at the centre-of- mass energy per nucleon– nucleon pair √sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre- of- mass rapidity interval y<2.5, 4> and in the transverse- momentum range pT<15 GeV/ c , via their decays to muon pairs. In this Letter, we present results on the inclusive ϒ(1S) nuclear modification factor RAA as a function of collision centrality, transverse momentum and rapidity. The ϒ(1S) and ϒ(2S) RAA , integrated over the centrality range 0–90%, are 0.37±0.02(stat)±0.03(syst) and 0.10±0.04(stat) ±0.02(syst) , respectively, leading to a ratio RAAϒ(2S)/RAAϒ(1S) of 0.28±0.12(stat)±0.06(syst) . The observed ϒ(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity.
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