Search for the lepton-flavour violating decays B(s)0→e±μ∓
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Search for the lepton-flavour violating decays B(s)0→e±μ∓. / LHCb Collaboration.
In: Journal of High Energy Physics, Vol. 2018, No. 3, 78, 13.03.2018.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for the lepton-flavour violating decays B(s)0→e±μ∓
AU - LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Alfonso Albero, A.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Archilli, F.
AU - d’Argent, P.
AU - Arnau Romeu, J.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Auriemma, G.
AU - Baalouch, M.
AU - Babuschkin, I.
AU - Bachmann, S.
AU - Back, J. J.
AU - Badalov, A.
AU - Baesso, C.
AU - Baker, S.
AU - Balagura, V.
AU - Baldini, W.
AU - Bifani, S.
AU - Calladine, R.
AU - Chatzikonstantinidis, G.
AU - Farley, N.
AU - Lazzeroni, C.
AU - Mazurov, A.
AU - Sergi, A.
AU - Watson, N. K.
AU - Williams, M. P.
AU - Zarebski, K. A.
AU - Williams, Timothy
PY - 2018/3/13
Y1 - 2018/3/13
N2 - A search for the lepton-flavour violating decays Bs0→e±μ∓ and B0→e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the Bs0→e±μ∓ decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are @/@ℬ(Bs0→e)<6.3(5.4)×10−9 and @/@ℬ(Bs0→e)<7.2(6.0)×10−9 at 95% (90%) confidence level, respectively. The upper limit on the branching fraction of the B0 → e±μ∓ decay is also evaluated, obtaining @/@ℬ(B0→e)<1.3(1.0)×10−9 at 95% (90%) confidence level. These are the strongest limits on these decays to date.
AB - A search for the lepton-flavour violating decays Bs0→e±μ∓ and B0→e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the Bs0→e±μ∓ decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are @/@ℬ(Bs0→e)<6.3(5.4)×10−9 and @/@ℬ(Bs0→e)<7.2(6.0)×10−9 at 95% (90%) confidence level, respectively. The upper limit on the branching fraction of the B0 → e±μ∓ decay is also evaluated, obtaining @/@ℬ(B0→e)<1.3(1.0)×10−9 at 95% (90%) confidence level. These are the strongest limits on these decays to date.
KW - B physics
KW - Branching fraction
KW - Flavor physics
KW - Hadron-Hadron scattering (experiments)
KW - Rare decay
UR - http://www.scopus.com/inward/record.url?scp=84992132586&partnerID=8YFLogxK
U2 - 10.1007/JHEP03(2018)078
DO - 10.1007/JHEP03(2018)078
M3 - Article
AN - SCOPUS:84992132586
VL - 2018
JO - JHEP
JF - JHEP
SN - 1126-6708
IS - 3
M1 - 78
ER -