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Alice Ohlson

Alice Ohlson

Senior lecturer

Alice Ohlson

Λc+ production in pp and in p -Pb collisions at sNN =5.02 TeV

Author

  • S Acharya
  • Jonatan Adolfsson
  • Sumit Basu
  • Peter Christiansen
  • Oliver Matonoha
  • Adrian Nassirpour
  • Alice Ohlson
  • Anders Oskarsson
  • Tuva Richert
  • Omar Vazquez Rueda
  • David Silvermyr
  • N Zurlo

Summary, in English

The production cross section of prompt Λc+ charm baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a center-of-mass energy per nucleon pair of sNN=5.02TeV. The Λc+ and Λ¯c- baryons were reconstructed in the hadronic decay channels Λc+→pK-π+ and Λc+→pKS0 and respective charge conjugates. The measured differential cross sections as a function of transverse momentum (pT) and the pT-integrated Λc+ production cross section in pp and in p-Pb collisions are presented. The Λc+ nuclear modification factor (RpPb), calculated from the cross sections in pp and in p-Pb collisions, is presented and compared with the RpPb of D mesons. The Λc+/D0 ratio is also presented and compared with the light-flavor baryon-to-meson ratios p/π and Λ/KS0, and measurements from other LHC experiments. The results are compared to predictions from model calculations and Monte Carlo event generators.

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration

Publishing year

2021

Language

English

Publication/Series

Physical Review C

Volume

104

Issue

5

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2469-9985