☆ 4.7 Article

Measurements of the Λb0 → J/ψ Λ decay amplitudes and the Λb0 polarisation in pp collisions at √s=7 TeV

PHYSICS LETTERS B (2013)

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Journal

PHYSICS LETTERS B
Volume 724, Issue 1-3, Pages 27-35

Publisher

ELSEVIER
DOI: 10.1016/j.physletb.2013.05.041

Keywords

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Categories

Astronomy & Astrophysics Physics, Nuclear Physics, Particles & Fields

Funding

  1. CAPES
  2. CNPq
  3. FAPERJ
  4. FINEP (Brazil)
  5. CERN
  6. NSFC (China)
  7. CNRS/IN2P3
  8. Region Auvergne (France)
  9. BMBF
  10. DFG
  11. HGF
  12. MPG (Germany)
  13. SFI (Ireland)
  14. INFN (Italy)
  15. FOM
  16. NWO (The Netherlands)
  17. SCSR (Poland)
  18. ANCS/IFA (Romania)
  19. MinES
  20. Rosatom
  21. RFBR
  22. NRC Kurchatov Institute (Russia)
  23. MinECo
  24. XuntaGal
  25. GENCAT (Spain)
  26. SNSF
  27. SER (Switzerland)
  28. NAS Ukraine (Ukraine)
  29. STFC (United Kingdom)
  30. NSF (USA)
  31. ERC
  32. IN2P3 (France)
  33. KIT
  34. BMBF (Germany)
  35. NWO
  36. SURF (The Netherlands)
  37. PIC (Spain)
  38. GridPP (United Kingdom)
  39. STFC [ST/H006737/1, ST/H00100X/1, ST/L001144/1, ST/H00100X/2, PP/E000347/1, ST/H00081X/2, ST/K001604/1, ST/G005974/1, ST/K00137X/1, ST/K00073X/1, ST/K004646/1, ST/H00081X/1, ST/K003410/1, ST/H001093/2, ST/M001431/1, ST/K000748/1, ST/J004332/1, LHCb, ST/I505572/1, LHCb Upgrades, ST/L003112/1, ST/K001361/1, ST/F007094/1, ST/H001069/2, ST/M000761/1, ST/J005568/1, ST/L00352X/1, ST/K00140X/1, ST/K000705/1, ST/H001085/2, ST/H001093/1, ST/L003392/1, PP/E000355/1, ST/F008015/1, ST/H001085/1, ST/L001195/1] Funding Source: UKRI
  40. Science and Technology Facilities Council [PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1, ST/K001361/1, ST/K001604/1 CMS Upgrade, ST/K001256/1, ST/M000761/1, ST/K001604/1 SuperNEMO, ST/K001361/1 ATLAS, ST/H00081X/2, ST/K001604/1 LHCb, ST/L001195/1, LHCb Upgrades, ST/H00081X/1, 1096173, ST/M001474/1, ST/I505572/1, ST/G005974/1, ST/H001085/1, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/M001431/1, ST/K003593/1 GRIDPP, ST/K00137X/1, ST/K001604/1 T2K, ST/H001093/2, ST/K001418/1, ST/F008015/1, ST/K001604/1, ST/F007094/1, ST/H001085/2, ST/K00140X/1, ST/K001310/1 LHCb, ST/K000705/1, ST/H006737/1, ST/K001310/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/J005568/1, ST/K003410/1, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/H00100X/2, ST/L001144/1, ST/K001604/1 MICE/UKNF, ST/K001310/1, ST/J004332/1, ST/K000748/1, GRIDPP, ST/K00073X/1, ST/L003392/1, ST/K001310/1 ATLAS Upgrades, ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, 1208164, LHCb, ST/K004646/1, PP/E000355/1, ST/H00100X/1, ST/K001361/1 LHCb] Funding Source: researchfish

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An angular analysis of Lambda(0)(b) -> J/psi Lambda decays is performed using a data sample corresponding to 1.0 fb(-1) collected in pp collisions at root s = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the Lambda(0)(b) -> J/psi Lambda decay of 0.05 +/- 0.17 +/- 0.07 and a Lambda(0)(b) transverse production polarisation of 0.06 +/- 0.07 +/- 0.02 are measured, where the first uncertainty is statistical and the second systematic. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

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