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Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV

Abstract:
An angular analysis of Lambda_b0 -> J/psi Lambda decays is performed using a data sample corresponding to 1.0 fb^{-1} collected in pp collisions at sqrt(s) = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the Lambda_b0 -> J/psi Lambda decay of 0.05 +/- 0.17 +/- 0.07 and a Lambda_b0 transverse production polarisation of 0.06 +/- 0.07 +/- 0.02 are measured, where the first uncertainty is statistical and the second systematic.
Publication status:
Published

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Publisher copy:
10.1016/j.physletb.2013.05.041

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Journal:
Physics Letters B More from this journal
Volume:
724
Issue:
1-3
Pages:
27
Publication date:
2013-02-22
DOI:
ISSN:
0370-2693


Language:
English
Keywords:
Pubs id:
pubs:387274
UUID:
uuid:594e333d-ef86-44f4-8df8-9db349f522c6
Local pid:
pubs:387274
Source identifiers:
387274
Deposit date:
2013-11-16

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