Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Measurement of V0 production ratios in pp collisions at sqrt(s)=0.9 and 7 TeV
 
research article

Measurement of V0 production ratios in pp collisions at sqrt(s)=0.9 and 7 TeV

Aaij, R.
•
Adeva, B.
•
Adinolfi, M.
Show more
2011
Journal of High Energy Physics

The (Lambda) over bar/Lambda and (Lambda) over bar /K-S(0) production ratios are measured by the LHCb detector from 0.3 nb(-1) of pp collisions delivered by the LHC at root s = 0.9TeV and 1.8 nb-1 at root s = 7TeV. Both ratios are presented as a function of transverse momentum, p(T), and rapidity, y, in the ranges 0.15 < p(T) < 2.50GeV/c and 2.0 < y < 4.5. Results at the two energies are in good agreement as a function of rapidity loss, Delta y = y(beam) - y, and are consistent with previous measurements. The ratio (Lambda) over bar/Lambda, measuring the transport of baryon number from the collision into the detector, is smaller in data than predicted in simulation, particularly at high rapidity. The ratio (Lambda) over bar /K-S(0), measuring the baryon-to-meson suppression in strange quark hadronisation, is significantly larger than expected.

  • Details
  • Metrics
Type
research article
DOI
10.1007/JHEP08(2011)034
Web of Science ID

WOS:000294901400048

Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Alkhazov, G.
Show more
Date Issued

2011

Publisher

Springer Nature

Published in
Journal of High Energy Physics
Volume

08

Start page

034

Subjects

LHCb

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
December 16, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/73535
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés