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Search for heavy neutral leptons in $W^+ \to \mu^+ \mu^{\pm} jet $ decays

A search is performed for heavy neutrinos in the decay of a $W$ boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $3.0 \text{ fb}^{- 1}$ of proton-proton collision data at centre-of-mass energies of 7 and $8 \text{ TeV}$ collected with the LHCb exp...

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Autores principales: Aaij, Roel, Abellán Beteta, Carlos, Ackernley, Thomas, Adeva, Bernardo, Adinolfi, Marco, Afsharnia, Hossein, Aidala, Christine Angela, Aiola, Salvatore, Ajaltouni, Ziad, Akar, Simon, Albrecht, Johannes, Alessio, Federico, Alexander, Michael, Alfonso Albero, Alejandro, Aliouche, Zakariya, Alkhazov, Georgy, Alvarez Cartelle, Paula, Amato, Sandra, Amhis, Yasmine, An, Liupan, Anderlini, Lucio, Andreianov, Aleksei, Andreotti, Mirco, Archilli, Flavio, Artamonov, Alexander, Artuso, Marina, Arzymatov, Kenenbek, Aslanides, Elie, Atzeni, Michele, Audurier, Benjamin, Bachmann, Sebastian, Bachmayer, Marie, Back, John, Baker, Sophie, Baladron Rodriguez, Pablo, Balagura, Vladislav, Baldini, Wander, Baptista Leite, Juan, Barlow, Roger, Barsuk, Sergey, Barter, William, Bartolini, Matteo, Baryshnikov, Fedor, Basels, Jan-Marc, Bassi, Giovanni, Batsukh, Baasansuren, Battig, Alexander, Bay, Aurelio, Becker, Maik, Bedeschi, Franco, Bediaga, Ignacio, Beiter, Andrew, Belavin, Vladislav, 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Haimberger, Jakob, Haines, Susan, Halewood-leagas, Tabitha, Hamilton, Phoebe Meredith, Han, Qundong, Han, Xiaoxue, Hancock, Thomas Henry, Hansmann-Menzemer, Stephanie, Harnew, Neville, Harrison, Thomas, Hasse, Christoph, Hatch, Mark, He, Jibo, Hecker, Malte, Heijhoff, Kevin, Heinicke, Kevin, Hennequin, Arthur Marius, Hennessy, Karol, Henry, Louis, Heuel, Johannes, Hicheur, Adlène, Hill, Donal, Hilton, Martha, Hollitt, Sophie Elizabeth, Hopchev, Plamen Hristov, Hu, Jiangqiao, Hu, Jifeng, Hu, Wenhua, Huang, Wenqian, Huang, Xiaotao, Hulsbergen, Wouter, Hunter, Ross John, Hushchyn, Mikhail, Hutchcroft, David, Hynds, Daniel, Ibis, Philipp, Idzik, Marek, Ilin, Dmitrii, Ilten, Philip, Inglessi, Alexander, Ishteev, Artur, Ivshin, Kuzma, Jacobsson, Richard, Jakobsen, Sune, Jans, Eddy, Jashal, Brij Kishor, Jawahery, Abolhassan, Jevtic, Vukan, Jezabek, Marek, Jiang, Feng, John, Malcolm, Johnson, Daniel, Jones, Christopher, Jones, Thomas Peter, Jost, Beat, Jurik, Nathan, Kandybei, Sergii, Kang, Youen, Karacson, Matthias, Kariuki, James Mwangi, Kazeev, Nikita, Kecke, Matthieu, Keizer, Floris, Kenzie, Matthew, Ketel, Tjeerd, Khanji, Basem, Kharisova, Anastasiia, Kholodenko, Sergei, Kim, Kyung Eun, Kirn, Thomas, Kirsebom, Veronica Soelund, Kitouni, Ouail, Klaver, Suzanne, Klimaszewski, Konrad, Koliiev, Serhii, Kondybayeva, Almagul, Konoplyannikov, Anatoly, Kopciewicz, Pawel, Kopecna, Renata, Koppenburg, Patrick, Korolev, Mikhail, Kostiuk, Igor, Kot, Oleksander, Kotriakhova, Sofia, Kravchenko, Polina, Kravchuk, Leonid, Krawczyk, Rafal Dominik, Kreps, Michal, Kress, Felix Johannes, Kretzschmar, Sophie Katharina, Krokovny, Pavel, Krupa, Wojciech, Krzemien, Wojciech, Kucewicz, Wojciech, Kucharczyk, Marcin, Kudryavtsev, Vasily, Kuindersma, Hilbrand Steffen, Kunde, Gerd Joachim, Kvaratskheliya, Tengiz, Lacarrere, Daniel, Lafferty, George, Lai, Adriano, Lampis, Andrea, Lancierini, Davide, Lane, John Jake, Lane, Richard, Lanfranchi, Gaia, Langenbruch, Christoph, Langer, Jan, Lantwin, Oliver, Latham, Thomas, Lazzari, Federico, Le Gac, Renaud, Lee, Sook Hyun, Lefèvre, Regis, Leflat, Alexander, Legotin, Sergey, Leroy, Olivier, Lesiak, Tadeusz, Leverington, Blake, Li, Hengne, Li, Lei, Li, Peilian, Li, Xuan, Li, Yiming, Li, Yutong, Li, Zhuoming, Liang, Xixin, Lin, Tai-hua, Lindner, Rolf, Lisovskyi, Vitalii, Litvinov, Roman, Liu, Guoming, Liu, Huanhuan, Liu, Shuaiyi, Liu, Xuesong, Loi, Angelo, Lomba Castro, Julian, Longstaff, Iain, Lopes, Jose, Loustau, Guillermo, Lovell, George Holger, Lu, Yu, Lucchesi, Donatella, Luchuk, Stanislav, Lucio Martinez, Miriam, Lukashenko, Valeriia, Luo, Yiheng, Lupato, Anna, Luppi, Eleonora, Lupton, Oliver, Lusiani, Alberto, Lyu, Xiao-Rui, Ma, Lishuang, Maccolini, Serena, Machefert, Frederic, Maciuc, Florin, Macko, Vladimir, Mackowiak, Patrick, Maddrell-Mander, Samuel, Madejczyk, Olga, Madhan Mohan, Lakshan Ram, Maev, Oleg, Maevskiy, Artem, Maisuzenko, Dmitrii, Majewski, Maciej Witold, Malde, Sneha, Malecki, Bartosz, Malinin, Alexander, Maltsev, Timofei, Malygina, Hanna, Manca, Giulia, Mancinelli, Giampiero, Manera Escalero, Rafel, Manuzzi, Daniele, Marangotto, Daniele, Maratas, Jan, Marchand, Jean François, Marconi, Umberto, Mariani, Saverio, 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, Mauricio, Juan, Mazurek, Michal Kazimierz, McCann, Michael, Mcconnell, Lucas, Mcgrath, Tamaki Holly, McNab, Andrew, McNulty, Ronan, Mead, James Vincent, Meadows, Brian, Meaux, Cedric, Meier, Gerwin, Meinert, Nis, Melnychuk, Dmytro, Meloni, Simone, Merk, Marcel, Merli, Andrea, Meyer Garcia, Lucas, Mikhasenko, Mikhail, Milanes, Diego Alejandro, Millard, Edward James, Milovanovic, Marko, Minard, Marie-Noelle, Minzoni, Luca, Mitchell, Sara Elizabeth, Mitreska, Biljana, Mitzel, Dominik Stefan, Mödden, Antje, Mohammed, Rizwaan Adeeb, 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, Müller, Dominik, Müller, Katharina, Murphy, Colm Harold, Murray, Donal, Muzzetto, Piera, Naik, Paras, Nakada, Tatsuya, Nandakumar, Raja, Nanut, Tara, Nasteva, Irina, Needham, Matthew, Neri, Ilaria, Neri, Nicola, Neubert, Sebastian, Neufeld, Niko, Newcombe, Ryan, Nguyen, Thi Dung, Nguyen-Mau, Chung, Niel, Elisabeth Maria, Nieswand, Simon, Nikitin, Nikolay, Nolte, Niklas Stefan, Nunez, Cynthia, Oblakowska-Mucha, Agnieszka, Obraztsov, Vladimir, O'Hanlon, Daniel Patrick, Oldeman, Rudolf, Olivares, Mario Edgardo, Onderwater, Gerco, Ossowska, Anna, Otalora Goicochea, Juan Martin, Ovsiannikova, Tatiana, Owen, Patrick, Oyanguren, Maria Aranzazu, Pagare, Bhagyashree, Pais, Preema Rennee, Pajero, Tommaso, Palano, Antimo, Palutan, Matteo, Pan, Yue, Panshin, Gennady, Papanestis, Antonios, Pappagallo, Marco, Pappalardo, Luciano, Pappenheimer, Cheryl, Parker, William, Parkes, Christopher, Parkinson, Christopher John, Passalacqua, Barbara, Passaleva, Giovanni, Pastore, Alessandra, Patel, Mitesh, Patrignani, Claudia, Pawley, Christopher James, Pearce, Alex, Pellegrino, Antonio, Pepe Altarelli, Monica, Perazzini, Stefano, Pereima, Dmitrii, Perret, Pascal, Petridis, Konstantinos, Petrolini, Alessandro, Petrov, Aleksandr, Petrucci, Stefano, Petruzzo, Marco, Pham, Thi Thuy Hang, Philippov, Anton, Pica, Lorenzo, Piccini, Mauro, Pietrzyk, Boleslaw, Pietrzyk, Guillaume, Pili, Martina, Pinci, Davide, Pinzino, Jacopo, Pisani, Flavio, Piucci, Alessio, PK, Resmi, 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, Popov, Sergei, Poslavskii, Stanislav, Prasanth, Kodassery, Promberger, Laura, Prouve, Claire, Pugatch, Valery, Puig Navarro, Albert, Pullen, Hannah Louise, Punzi, Giovanni, Qian, Wenbin, Qin, Jia-Jia, Quagliani, Renato, Quintana, Boris, Raab, Naomi Veronika, Rabadan Trejo, Raul Iraq, Rachwal, Bartlomiej, Rademacker, Jonas, Rama, Matteo, Ramos Pernas, Miguel, Rangel, Murilo, Ratnikov, Fedor, Raven, Gerhard, Reboud, Meril, Redi, Federico, Reiss, Florian, Remon Alepuz, Clara, Ren, Zan, Renaudin, Victor, Ribatti, Roberto, Ricciardi, Stefania, Richards, Daniel Stephen, Rinnert, Kurt, Robbe, Patrick, Robert, Arnaud, Robertson, Gary, Rodrigues, Ana Barbara, Rodrigues, Eduardo, Rodriguez Lopez, Jairo Alexis, Rollings, Alexandra Paige, Roloff, Philipp, Romanovskiy, Vladimir, Romero Lamas, Marcos, Romero Vidal, Antonio, Roth, Jordan Daniel, Rotondo, Marcello, Rudolph, Matthew Scott, Ruf, Thomas, Ruiz Vidal, Joan, Ryzhikov, Artem, Ryzka, Jakub, Saborido Silva, Juan Jose, Sagidova, Naylya, Sahoo, Niladribihari, Saitta, Biagio, Sanchez Gonzalo, David, Sanchez Gras, Cristina, Sanchez Mayordomo, Carlos, Santacesaria, Roberta, Santamarina Rios, Cibran, Santimaria, Marco, Santovetti, Emanuele, Saranin, Danila, Sarpis, Gediminas, Sarpis, Minaugas, Sarti, Alessio, Satriano, Celestina, Satta, Alessia, Saur, Miroslav, Savrina, Darya, Sazak, Halime, Scantlebury Smead, Luke George, Schael, Stefan, Schellenberg, Margarete, Schiller, Manuel, Schindler, Heinrich, Schmelling, Michael, Schmelzer, Timon, Schmidt, Burkhard, Schneider, Olivier, Schopper, Andreas, Schubiger, Maxime, Schulte, Sebastian, Schune, Marie Helene, Schwemmer, Rainer, Sciascia, Barbara, Sciubba, Adalberto, Sellam, Sara, Semennikov, Alexander, Senghi Soares, Mara, Sergi, Antonino, Serra, Nicola, Serrano, Justine, Sestini, Lorenzo, Seuthe, Alex, 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Zishuo, Yao, Yuezhe, Yeomans, Lauren Emma, Yin, Hang, Yu, Jiesheng, Yuan, Xuhao, Yushchenko, Oleg, Zaffaroni, Ettore, Zarebski, Kristian Alexander, Zavertyaev, Mikhail, Zdybal, Milosz, Zenaiev, Oleksandr, Zeng, Ming, Zhang, Dongliang, Zhang, Liming, Zhang, Shunan, Zhang, Yanxi, Zhang, Yu, Zhelezov, Alexey, Zheng, Yangheng, Zhou, Xiaokang, Zhou, Yixiong, Zhu, Xianglei, Zhukov, Valery, Zonneveld, Jennifer Brigitta, Zucchelli, Stefano, Zuliani, Davide, Zunica, Gianluca
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-021-08973-5
http://cds.cern.ch/record/2744120
Descripción
Sumario:A search is performed for heavy neutrinos in the decay of a $W$ boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $3.0 \text{ fb}^{- 1}$ of proton-proton collision data at centre-of-mass energies of 7 and $8 \text{ TeV}$ collected with the LHCb experiment. Both same-sign and opposite-sign muons in the final state are considered. Data are found to be consistent with the expected background. Upper limits on the coupling of a heavy neutrino with the Standard Model neutrino are set at $95\%$ confidence level in the heavy-neutrino mass range from 5 to $50 \text{ GeV}/c^2$. These are of the order of $10^{-3}$ for lepton-number-conserving decays and of the order of $10^{-4}$ for lepton-number-violating heavy-neutrino decays.