Journal article

### Measurement of the differential branching fraction of the decay $Λ_b^0\rightarrowΛμ^+μ^-$

Abstract:

The differential branching fraction of the decay $\Lambda_b^0\rightarrow\Lambda\mu^+\mu^-$ is measured as a function of the square of the dimuon invariant mass, $q^2$. A yield of $78\pm12$ $\Lambda_b^0\rightarrow\Lambda\mu^+\mu^-$ decays is observed using data, corresponding to an integrated luminosity of 1.0\,fb$^{-1}$, collected by the LHCb experiment at a centre-of-mass energy of 7\,TeV. A significant signal is found in the $q^2$ region above the square of the $J/\psi$ mass, while at lower...

Publication status:
Published

### Authors

Journal:
Phys. Lett. B
Volume:
725
Issue:
1-3
Pages:
25
Publication date:
2013-06-11
DOI:
ISSN:
0370-2693
URN:
uuid:a2cd13b5-668f-4f17-9ab6-69fcd258bd51
Source identifiers:
414372
Local pid:
pubs:414372
Language:
English
Keywords: