TY - JOUR
T1 - Measurement of D , D + , D ∗ + and Ds+ produktion in pp collisions at √s=5.02TeV with ALICE
AU - Acharya, S.
AU - Adamova, D.
AU - Adhya, S
AU - Adler, A.
AU - Adolfsson, J
AU - Aggarwal, MM.
AU - Aglieri Rinella, G.
AU - Agnello, A.
AU - Ahammed, Z.
AU - Ahmad, Shafqat
AU - Ahn, S.U.
AU - Akindinov, A.
AU - Al-Turany, M.
AU - Alam, SN
AU - Albuquerque, DSD
AU - Aleksandrov, D.
AU - Alessandro, B
AU - Alfanda, H.M.
AU - Alfaro-Molina, null
AU - Ali, B.
AU - Ali, Y.
AU - Alici, A.
AU - Alkin, A.
AU - Alme, J.
AU - Alt, T.
AU - Altenkamper, L.
AU - Altsybeev, I.
AU - Anaam, MN
AU - Bearden, Ian
AU - rtc312, rtc312
AU - Zhou, You
AU - Gaardhøje, Jens Jørgen
AU - Bilandzic, Ante
AU - Bourjau, Christian Alexander
AU - Chojnacki, Marek
AU - Ozelin De Lima Pimentel, Lais
AU - Gajdosova, Katarina
AU - bsm989, bsm989
AU - Thoresen, Freja
AU - Bourjau, Christian
AU - Nielsen, Børge Svane
AU - Pacik, Vojtech
AU - ALICE Collaboration
PY - 2019/5/6
Y1 - 2019/5/6
N2 -
The measurements of the production of prompt D , D
+
, D
∗ +
, and Ds+ mesons in proton–proton (pp) collisions at s=5.02TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity (| y| < 0.5) via their hadronic decay channels D → K
-
π
+
, D
+
→ K
-
π
+
π
+
, D
∗ +
→ D π
+
→ K
-
π
+
π
+
, Ds+→ϕπ+→K+K-π+, and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<pT<36GeV/c for D , 1<pT<36GeV/c for D
+
and D
∗ +
, and in 2<pT<24GeV/c for Ds+ mesons. Thanks to the higher integrated luminosity, an analysis in finer p
T
bins with respect to the previous measurements at s=7TeV was performed, allowing for a more detailed description of the cross-section p
T
shape. The measured p
T
-differential production cross sections are compared to the results at s=7 TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at s=5.02TeV. This measurement will allow for a more accurate determination of the nuclear modification factor in p–Pb and Pb–Pb collisions performed at the same nucleon–nucleon centre-of-mass energy.
AB -
The measurements of the production of prompt D , D
+
, D
∗ +
, and Ds+ mesons in proton–proton (pp) collisions at s=5.02TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity (| y| < 0.5) via their hadronic decay channels D → K
-
π
+
, D
+
→ K
-
π
+
π
+
, D
∗ +
→ D π
+
→ K
-
π
+
π
+
, Ds+→ϕπ+→K+K-π+, and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<pT<36GeV/c for D , 1<pT<36GeV/c for D
+
and D
∗ +
, and in 2<pT<24GeV/c for Ds+ mesons. Thanks to the higher integrated luminosity, an analysis in finer p
T
bins with respect to the previous measurements at s=7TeV was performed, allowing for a more detailed description of the cross-section p
T
shape. The measured p
T
-differential production cross sections are compared to the results at s=7 TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at s=5.02TeV. This measurement will allow for a more accurate determination of the nuclear modification factor in p–Pb and Pb–Pb collisions performed at the same nucleon–nucleon centre-of-mass energy.
U2 - 10.1140/epjc/s10052-019-6873-6
DO - 10.1140/epjc/s10052-019-6873-6
M3 - Journal article
AN - SCOPUS:85065322611
SN - 1434-6044
VL - 79
JO - The European Physical Journal C: Particles and Fields
JF - The European Physical Journal C: Particles and Fields
IS - 5
M1 - 388
ER -