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Search for the lepton-flavour violating decays $B^+ \to K^+ {\mu}^{\pm} e^{\mp}$

A search for the lepton-flavor violating decays B+→K+μ±e∓ is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3  fb-1. No significant signal is observed, and upper l...

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George, Lai, Adriano, Lancierini, Davide, Lane, John Jake, Lanfranchi, Gaia, Langenbruch, Christoph, Latham, Thomas, Lazzari, Federico, Lazzeroni, Cristina, Le Gac, Renaud, Leflat, Alexander, Lefèvre, Regis, Lemaitre, Florian, Leroy, Olivier, Lesiak, Tadeusz, Leverington, Blake, Li, Hengne, Li, Pei-Rong, Li, Xuan, Li, Yiming, Li, Zhuoming, Liang, Xixin, Likhomanenko, Tatiana, Lindner, Rolf, Ling, Pan, Lionetto, Federica, Lisovskyi, Vitalii, Liu, Guoming, Liu, Xuesong, Loh, David, Loi, Angelo, Lomba Castro, Julian, Longstaff, Iain, Lopes, Jose, Loustau, Guillermo, Lovell, George Holger, Lucchesi, Donatella, Lucio Martinez, Miriam, Luo, Yiheng, Lupato, Anna, Luppi, Eleonora, Lupton, Oliver, Lusiani, Alberto, Lyu, Xiao-Rui, Ma, Rui, Machefert, Frederic, Maciuc, Florin, Macko, Vladimir, Mackowiak, Patrick, Maddrell-Mander, Samuel, Madhan Mohan, Lakshan Ram, Maev, Oleg, Maevskiy, Artem, Maguire, Kevin, Maisuzenko, Dmitrii, Majewski, Maciej Witold, Malde, Sneha, Malecki, Bartosz, Malinin, Alexander, Maltsev, Timofei, Malygina, Hanna, Manca, Giulia, Mancinelli, Giampiero, Marangotto, Daniele, Maratas, Jan, Marchand, Jean François, Marconi, Umberto, Marin Benito, Carla, Marinangeli, Matthieu, Marino, Pietro, Marks, Jörg, Marshall, Phillip John, Martellotti, Giuseppe, Martinazzoli, Loris, Martinelli, Maurizio, Martinez Santos, Diego, Martinez Vidal, Fernando, Massafferri, André, Materok, Marcel, Matev, Rosen, Mathad, Abhijit, Mathe, Zoltan, Matiunin, Viacheslav, Matteuzzi, Clara, Mattioli, Kara Renee, Mauri, Andrea, Maurice, Emilie, Maurin, Brice, McCann, Michael, Mcconnell, Lucas, McNab, Andrew, McNulty, Ronan, Mead, James Vincent, Meadows, Brian, Meaux, Cedric, Meier, Gerwin, Meinert, Nis, Melnychuk, Dmytro, Merk, Marcel, Merli, Andrea, Michielin, Emanuele, Milanes, Diego Alejandro, Millard, Edward James, Minard, Marie-Noelle, Mineev, Oleg, Minzoni, Luca, Mitchell, Sara Elizabeth, Mitreska, Biljana, Mitzel, Dominik Stefan, Mogini, Andrea, Moise, Razvan Daniel, Mombächer, Titus, Monroy, Igancio Alberto, Monteil, Stephane, Morandin, Mauro, Morello, Gianfranco, Morello, Michael Joseph, Moron, Jakub, Morris, Adam Benjamin, Morris, Andrew George, Mountain, Raymond, Mu, Hongjie, Muheim, Franz, Mukherjee, Maitreyee, Mulder, Mick, Murphy, Colm Harold, Murray, Donal, Mödden, Antje, Müller, Dominik, Müller, Janine, Müller, Katharina, Müller, Vanessa, Naik, Paras, Nakada, Tatsuya, Nandakumar, Raja, Nandi, Anita, Nanut, Tara, Nasteva, Irina, Needham, Matthew, Neri, Nicola, Neubert, Sebastian, Neufeld, Niko, Newcombe, Ryan, Nguyen, Thi Dung, Nguyen-Mau, Chung, Niel, Elisabeth Maria, Nieswand, Simon, Nikitin, Nikolay, Nolte, Niklas Stefan, O'Hanlon, Daniel Patrick, Oblakowska-Mucha, Agnieszka, Obraztsov, Vladimir, Ogilvy, Stephen, Oldeman, Rudolf, Onderwater, Gerco, Osborn, Joseph Daniel, Ossowska, Anna, Otalora Goicochea, Juan Martin, Ovsiannikova, Tatiana, Owen, Patrick, Oyanguren, Maria Aranzazu, Pais, Preema Rennee, Pajero, Tommaso, Palano, Antimo, Palutan, Matteo, Panshin, Gennady, Papanestis, Antonios, Pappagallo, Marco, Pappalardo, Luciano, Parker, William, Parkes, Christopher, Passaleva, Giovanni, Pastore, Alessandra, Patel, Mitesh, Patrignani, Claudia, Pearce, Alex, Pellegrino, Antonio, Penso, Gianni, Pepe Altarelli, Monica, Perazzini, Stefano, Pereima, Dmitrii, Perret, Pascal, Pescatore, Luca, Petridis, Konstantinos, Petrolini, Alessandro, Petrov, Aleksandr, Petrucci, Stefano, Petruzzo, Marco, Pietrzyk, Boleslaw, Pietrzyk, Guillaume, Pikies, Malgorzata, Pili, Martina, Pinci, Davide, Pinzino, Jacopo, Pisani, Flavio, Piucci, Alessio, Placinta, Vlad-Mihai, Playfer, Stephen, Plews, Jonathan, Plo Casasus, Maximo, Polci, Francesco, Poli Lener, Marco, Poliakova, Mariia, Poluektov, Anton, Polukhina, Natalia, Polyakov, Ivan, Polycarpo, Erica, Pomery, Gabriela Johanna, Ponce, Sebastien, Popov, Alexander, Popov, Dmitry, Poslavskii, Stanislav, Prasanth, Kodassery, Prouve, Claire, Pugatch, Valery, Puig Navarro, Albert, Pullen, Hannah Louise, 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Mike, Williams, Timothy, Wilson, Fergus, Winn, Michael Andreas, Wislicki, Wojciech, Witek, Mariusz, Wormser, Guy, Wotton, Stephen, Wu, Hangyi, Wyllie, Kenneth, Xiang, Zhiyu, Xiao, Dong, Xie, Yuehong, Xing, Hongxi, Xu, Ao, Xu, Li, Xu, Menglin, Xu, Qingnian, Xu, Zehua, Xu, Zhirui, Yang, Zhenwei, Yang, Zishuo, Yao, Yuezhe, Yeomans, Lauren Emma, Yin, Hang, Yu, Jiesheng, Yuan, Xuhao, Yushchenko, Oleg, Zarebski, Kristian Alexander, Zavertyaev, Mikhail, Zeng, Ming, Zhang, Dongliang, Zhang, Liming, Zhang, Shunan, Zhang, Wen Chao, Zhang, Yanxi, Zhelezov, Alexey, Zheng, Yangheng, Zhou, Xiaokang, Zhou, Yixiong, Zhu, Xianglei, Zhukov, Valery, Zonneveld, Jennifer Brigitta, Zucchelli, Stefano
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.123.241802
http://cds.cern.ch/record/2688536
Descripción
Sumario:A search for the lepton-flavor violating decays B+→K+μ±e∓ is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3  fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.