# Search for the lepton number violating decays $B^{+}\to \pi^- \mu^+ \mu^+$ and $B^{+}\to K^- \mu^+ \mu^+$

@article{Aaij2011SearchFT, title={Search for the lepton number violating decays \$B^\{+\}\to \pi^- \mu^+ \mu^+\$ and \$B^\{+\}\to K^- \mu^+ \mu^+\$}, author={T. L. C. R. Aaij and C. A. Beteta and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and G. Alkhazov and P. Cartelle and A. A. Alves and S. Amato and Y. Amhis and J. Anderson and R. Appleby and O. Guti{\'e}rrez and F. Archilli and L. Arrabito and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and J. J. Back and D. Bailey and V. Balagura and W. Baldini and R. Barlow and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and T. Bauer and A. Bay and I. Bediaga and K. Belous and I. Belyaev and E. Benhaim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton and R. Bernet and M. Bettler and M. Beuzekom and A. Bie{\~n} and S. Bifani and A. Bizzeti and P. Bj{\o}rnstad and T. Blake and F. Blanc and C. Blanks and J. Blouw and S. Blusk and A. Bobrov and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and T. Bowcock and C. Bozzi and T. Brambach and J. Brand and J. Bressieux and D. Brett and S. Brisbane and M. Britsch and T. Britton and N. H. Brook and H. Brown and A. Buchler-Germann and I. Burducea and A. Bursche and J. Buytaert and S. Cadeddu and J. Carvajal and O. Callot and M. Calvi and M. Gomez and A. Camboni and P. Campana and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and L. Carson and K. C. Akiba and G. Casse and M. Cattaneo and M. Charles and P. Charpentier and N. Chiapolini and K. Ciba and X. Vidal and G. Ciezarek and P. Clarke and M. Clemencic and H. V. Cliff and J. Closier and C. Coca and V. Coco and J. Cogan and P. Collins and A. Comerma-Montells and F. Constantin and G. Conti and A. Contu and A. Cook and M. Coombes and G. Corti and G. Cowan and R. Currie and B. D'almagne and C. D'Ambrosio and P. David and I. Bonis and S. Capua and M. Cian and F. D. Lorenzi and J. Miranda and L. Paula and P. Simone and D. Decamp and M. Deckenhoff and H. Degaudenzi and M. Deissenroth and L. Buono and C. Deplano and O. Deschamps and F. Dettori and J. Dickens and H. Dijkstra and P. Batista and F. Bonal and S. Donleavy and A. Su'arez and D. Dossett and A. Dovbnya and F. Dupertuis and R. Dzhelyadin and S. Easo and U. Egede and V. Egorychev and S. Eidelman and D. Eijk and F. Eisele and S. Eisenhardt and R. Ekelhof and L. Eklund and C. Elsasser and D. d'Enterria and D. Pereira and L. Esteve and A. Falabella and E. Fanchini and C. Farber and G. Fardell and C. Farinelli and S. Farry and V. Fave and V. Albor and M. Ferro-Luzzi and S. Filippov and C. Fitzpatrick and M. Fontana and F. Fontanelli and R. Forty and M. Frank and C. Frei and M. Frosini and S. Furcas and A. G. Torreira and D. Galli and M. Gandelman and P. Gandini and Y. Gao and J. Garnier and J. Garofoli and J. G. Tico and L. Garrido and D. Gascon and C. Gaspar and N. Gauvin and M. Gersabeck and T. Gershon and P. Ghez and V. Gibson and V. V. Gligorov and C. Gobel and D. Golubkov and A. Golutvin and A. Gomes and H. Gordon and M. G. G'andara and R. Diaz and L. Cardoso and E. Grauges and G. Graziani and A. Grecu and E. Greening and S. Gregson and B. Gui and E. Gushchin and Y. Guz and T. Gys and G. Haefeli and C. Haen and S. Haines and T. Hampson and S. Hansmann-Menzemer and R. Harji and N. Harnew and J. Harrison and P. F. Harrison and J. He and V. Heijne and K. Hennessy and P. Henrard and J. Morata and E. Herwijnen and E. Hicks and W. Hofmann and K. Holubyev and P. Hopchev and W. Hulsbergen and P. Hunt and T. Huse and R. Huston and D. Hutchcroft and D. Hynds and V. Iakovenko and P. Ilten and J. Imong and R. Jacobsson and A. J{\"a}ger and M. Hussein and E. Jans and F. Jansen and P. Jaton and B. Jean-Marie and F. Jing and M. John and D. Johnson and C. R. Jones and B. Jost and S. Kandybei and M. Karacson and T. M. Karbach and J. Keaveney and U. Kerzel and T. Ketel and A. Keune and B. Khanji and Y. M. Kim and M. Knecht and S. Koblitz and P. Koppenburg and A. Kozlinskiy and L. Kravchuk and K. Kreplin and M. Kreps and G. Krocker and P. Krokovny and F. Kruse and K. Kruzelecki and M. Kucharczyk and S. Kukulak and R. Kumar and T. Kvaratskheliya and V. Thi and D. Lacarr{\`e}re and G. Lafferty and A. Lai and D. Lambert and R. Lambert and E. Lanciotti and G. Lanfranchi and C. Langenbruch and T. Latham and R. Gac and J. Leerdam and J. Lees and R. Lefevre and A. Leflat and J. Lefranccois and O. Leroy and T. Lesiak and L. Li and L. Gioi and M. Lieng and M. Liles and R. Lindner and C. Linn and B. Liu and G. Liu and J. H. Lopes and E. Asamar and N. Lopez-march and J. Luisier and F. Machefert and I. Machikhiliyan and F. Maciuc and O. Maev and J. Magnin and S. Malde and R. Mamunur and G. Manca and G. Mancinelli and N. Mangiafave and U. Marconi and R. Marki and J. Marks and G. Martellotti and A. Martens and L. Martin and A. S'anchez and D. Santos and A. Massafferri and Z. Mathe and C. Matteuzzi and M. Matveev and E. Maurice and B. Maynard and A. Mazurov and G. McGregor and R. McNulty and C. McLean and M. Meissner and M. Merk and J. Merkel and R. Messi and S. Miglioranzi and D. A. Milanes and M. Minard and S. Monteil and D. Moran and P. Morawski and R. Mountain and I. Mous and F. Muheim and K. Muller and R. Muresan and B. Muryn and M. Musy and J. Mylroie-Smith and P. Naik and T. Nakada and R. Nandakumar and J. Nardulli and I. Nasteva and M. Nedos and M. Needham and N. Neufeld and C. Nguyen-Mau and M. Nicol and S. Nies and V. Niess and N. Nikitin and A. Nomerotski and A. Oblakowska-Mucha and V. Obraztsov and S. Oggero and S. Ogilvy and O. Okhrimenko and R. Oldeman and M. Orlandea and J. Goicochea and P. Owen and K. Pal and J. Palacios and A. Palano and M. Palutan and J. Panman and A. Papanestis and M. Pappagallo and C. Parkes and C. Parkinson and G. Passaleva and G. D. Patel and M. Patel and S. Paterson and G. Patrick and C. Patrignani and C. Pavel-Nicorescu and A. Alvarez and A. Pellegrino and G. Penso and M. P. Altarelli and S. Perazzini and D. Perego and E. Trigo and A. Yzquierdo and P. Perret and M. Perrin-terrin and G. Pessina and A. Petrella and A. Petrolini and E. P. Olloqui and B. P. Valls and B. Pietrzyk and T. Pilař and D. Pinci and R. Plackett and S. Playfer and M. P. Casasus and G. Polok and A. Poluektov and E. Polycarpo and D. Popov and B. Popovici and C. Potterat and A. Powell and T. Pree and J. Prisciandaro and V. Pugatch and A. Navarro and W. Qian and J. H. Rademacker and B. Rakotomiaramanana and M. Rangel and I. Raniuk and G. Raven and S. Redford and M. Reid and A. Reis and S. Ricciardi and K. Rinnert and D. Romero and P. Robbe and E. Rodrigues and F. Rodrigues and P. Perez and G. Rogers and S. Roiser and V. Romanovsky and M. Rosello and J. Rouvinet and T. Ruf and H. Ruiz and G. Sabatino and J. Silva and N. Sagidova and P. Sail and B. Saitta and C. Salzmann and M. Sannino and R. Santacesaria and R. Santinelli and E. Santovetti and M. Sapunov and A. Sarti and C. Satriano and A. Satta and M. Savri{\'e} and D. Savrina and P. Schaack and M. Schiller and S. Schleich and M. Schmelling and B. Schmidt and O. Schneider and A. Schopper and M. Schune and R. Schwemmer and B. Sciascia and A. Sciubba and M. Seco and A. Semennikov and K. Senderowska and I. Sepp and N. Serra and J. Serrano and P. Seyfert and B. Shao and M. Shapkin and I. Shapoval and P. Shatalov and Y. Shcheglov and T. Shears and L. Shekhtman and O. Shevchenko and V. Shevchenko and A. Shires and R. Coutinho and H. Skottowe and T. Skwarnicki and A. Smith and N. Smith and E. Smith and K. Sobczak and F. Soler and A. Solomin and F. Soomro and B. S. Paula and B. Spaan and A. Sparkes and P. Spradlin and F. Stagni and S. Stahl and O. Steinkamp and S. Stoica and S. Stone and B. Storaci and M. Straticiuc and U. Straumann and N. Styles and V. Subbiah and S. Swientek and M. Szczekowski and P. Szczypka and T. Szumlak and S. T'jampens and E. Teodorescu and F. Teubert and C. Thomas and E. Thomas and J. Tilburg and V. Tisserand and M. Tobin and S. Topp-Joergensen and N. Torr and M. Tran and A. Tsaregorodtsev and N. Tuning and A. Ukleja and P. Urquijo and U. Uwer and V. Vagnoni and G. Valenti and R. Gomez and P. Regueiro and S. Vecchi and J. J. Velthuis and M. Veltri and K. Vervink and B. Viaud and I. Videau and X. Vilas{\'i}s-Cardona and J. Vi{\vs}niakov and A. Vollhardt and D. Voong and A. Vorobyev and H. Voss and K. Wacker and S. Wandernoth and J. Wang and D. Ward and A. Webber and D. Websdale and M. Whitehead and D. Wiedner and L. Wiggers and G. Wilkinson and M. Williams and F. Wilson and J. Wishahi and M. Witek and W. Witzeling and S. A. Wotton and K. Wyllie and Y. Xie and F. Xing and Z. Xing and Z. Yang and R. Young and O. Yushchenko and M. Zavertyaev and L. Zhang and W. Zhang and Y. Zhang and A. Zhelezov and L. Zhong and E. Zverev and A. Zvyagin}, journal={Physical Review Letters}, year={2011}, volume={108}, pages={101601} }

A search is performed for the lepton number violating decay $B^{+}\to h^- \mu^+ \mu^+$, where $h^-$ represents a $K^-$ or a $\pi^-$, using data from the LHCb detector corresponding to an integrated luminosity of $36pb^{-1}$. The decay is forbidden in the Standard Model but allowed in models with a Majorana neutrino. No signal is observed in either channel and limits of $B(B^{+} \to K^- \mu^+ \mu^+) < 5.4\times 10^{-8}$ and $B(B^{+} \to \pi^- \mu^+ \mu^+) < 5.8\times 10^{-8}$ are set at the 95… CONTINUE READING