- Main
Search for the lepton-flavour violating decay D0→e±μ∓
- Aaij, R;
- Abellán Beteta, C;
- Adeva, B;
- Adinolfi, M;
- Affolder, A;
- Ajaltouni, Z;
- Akar, S;
- Albrecht, J;
- Alessio, F;
- Alexander, M;
- Ali, S;
- Alkhazov, G;
- Alvarez Cartelle, P;
- Alves, AA;
- Amato, S;
- Amerio, S;
- Amhis, Y;
- An, L;
- Anderlini, L;
- Anderson, J;
- Andreassi, G;
- Andreotti, M;
- Andrews, JE;
- Appleby, RB;
- Aquines Gutierrez, O;
- Archilli, F;
- d'Argent, P;
- Artamonov, A;
- Artuso, M;
- Aslanides, E;
- Auriemma, G;
- Baalouch, M;
- Bachmann, S;
- Back, JJ;
- Badalov, A;
- Baesso, C;
- Baldini, W;
- Barlow, RJ;
- Barschel, C;
- Barsuk, S;
- Barter, W;
- Batozskaya, V;
- Battista, V;
- Bay, A;
- Beaucourt, L;
- Beddow, J;
- Bedeschi, F;
- Bediaga, I;
- Bel, LJ;
- Bellee, V;
- Belloli, N;
- Belyaev, I;
- Ben-Haim, E;
- Bencivenni, G;
- Benson, S;
- Benton, J;
- Berezhnoy, A;
- Bernet, R;
- Bertolin, A;
- Bettler, MO;
- van Beuzekom, M;
- Bifani, S;
- Billoir, P;
- Bird, T;
- Birnkraut, A;
- Bizzeti, A;
- Blake, T;
- Blanc, F;
- Blouw, J;
- Blusk, S;
- Bocci, V;
- Bondar, A;
- Bondar, N;
- Bonivento, W;
- Borghi, S;
- Borisyak, M;
- Borsato, M;
- Bowcock, TJV;
- Bowen, E;
- Bozzi, C;
- Braun, S;
- Britsch, M;
- Britton, T;
- Brodzicka, J;
- Brook, NH;
- Buchanan, E;
- Burr, C;
- Bursche, A;
- Buytaert, J;
- Cadeddu, S;
- Calabrese, R;
- Calvi, M;
- Calvo Gomez, M;
- Campana, P;
- Campora Perez, D;
- Capriotti, L;
- Carbone, A;
- Carboni, G;
- Cardinale, R;
- Cardini, A
- et al.
Published Web Location
https://doi.org/10.1016/j.physletb.2016.01.029Abstract
A search for the lepton-flavour violating decay D0→e±μ∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D0mesons are selected using the decay D*+→D0π+and the D0→e±μ∓branching fraction is measured using the decay mode D0→K-π+as a normalization channel. No significant excess of D0→e±μ∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.
Main Content
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