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Precise measurement of the $f_s/f_d$ ratio of fragmentation fractions and of $B^0_s$ decay branching fractions

The ratio of the $B^0_s$ and $B^0$ fragmentation fractions, $f_s/f_d$, in proton-proton collisions at the LHC, is obtained as a function of $B$-meson transverse momentum and collision centre-of-mass energy from the combined analysis of different $B$-decay channels measured by the LHCb experiment....

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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, Belin, Samuel, Bellee, Violaine, Belous, Konstantin, Belov, Ilia, Belyaev, Ivan, Bencivenni, Giovanni, Ben-Haim, Eli, Berezhnoy, Alexander, Bernet, Roland, Berninghoff, Daniel, Bernstein, Harris Conan, Bertella, Claudia, Bertolin, Alessandro, Betancourt, Christopher, Betti, Federico, Bezshyiko, Ia., Bezshyiko, Iaroslava, Bhasin, Srishti, Bhom, Jihyun, Bian, Lingzhu, Bieker, Martin Stefan, Bifani, Simone, Billoir, Pierre, Birch, Matthew, Bishop, Fionn Caitlin Ros, Bitadze, Alexander, Bizzeti, Andrea, Bjørn, Mikkel, Blago, Michele Piero, Blake, Thomas, Blanc, Frederic, Blusk, Steven, Bobulska, Dana, Boelhauve, Julian Alexander, Boente Garcia, Oscar, Boettcher, Thomas, Boldyrev, Alexey, Bondar, Alexander, Bondar, Nikolay, Borghi, Silvia, Borisyak, Maxim, Borsato, Martino, Borsuk, Jozef Tomasz, Bouchiba, Sonia Amina, Bowcock, Themistocles, Boyer, Alexandre, Bozzi, Concezio, Bradley, Matthew John, Braun, Svende, Brea Rodriguez, Alexandre, Brodski, Michael, Brodzicka, Jolanta, Brossa 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Hengne, Li, Lei, Li, Peilian, 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, 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, Ma, Ruiting, 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, Malczewski, Jakub Jacek, 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, C.J.G., 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, Pisani, Flavio, Piucci, Alessio, K., Resmi P., Placinta, Vlad-Mihai, 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, Dmitry, Popov, Sergei, Poslavskii, Stanislav, Prasanth, 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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, 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, Sestini, Lorenzo, Seuthe, Alex, Seyfert, Paul, Shangase, Desmond Mzamo, Shapkin, Mikhail, Shchemerov, Ivan, Shchutska, Lesya, Shears, Tara, Shekhtman, Lev, Shen, Zhihong, Shevchenko, Vladimir, Shields, Edward Brendan, Shmanin, Evgenii, Shupperd, Joseph David, Siddi, Benedetto Gianluca, Silva Coutinho, Rafael, Simi, Gabriele, Simone, Saverio, Skidmore, Nicola, 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Wark, Heather Mckenzie, Watson, Nigel, Weber, Steffen Georg, Websdale, David, Weisser, Constantin, Westhenry, Benedict Donald C, White, Dylan Jaide, Whitehead, Mark, Wiedner, Dirk, Wilkinson, Guy, Wilkinson, Michael, Williams, Ifan, Williams, Mike, Williams, Mark Richard James, Wilson, Fergus, Wislicki, Wojciech, Witek, Mariusz, Witola, Lukas, Wormser, Guy, Wotton, Stephen, Wu, Hangyi, Wyllie, Kenneth, Xiang, Zhiyu, Xiao, Dong, Xie, Yuehong, Xu, Ao, Xu, Jingyi, Xu, Li, Xu, Menglin, Xu, Qingnian, Xu, Zehua, Xu, Zhihao, Yang, Di, Yang, Shuangli, Yang, Youhua, Yang, Zhenwei, Yang, 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: 2021
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.104.032005
http://cds.cern.ch/record/2754316
Descripción
Sumario:The ratio of the $B^0_s$ and $B^0$ fragmentation fractions, $f_s/f_d$, in proton-proton collisions at the LHC, is obtained as a function of $B$-meson transverse momentum and collision centre-of-mass energy from the combined analysis of different $B$-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum, or with a function inspired by Tsallis statistics. Precise measurements of the branching fractions of the $B^0_s \to J/\psi \phi$ and $B^0_s \to D^-_s \pi^+$ decays are performed, reducing their uncertainty by about a factor of two with respect to previous world averages. Numerous $B^0_s$ decay branching fractions, measured at the LHCb experiment, are also updated using the new values of $f_s/f_d$ and branching fractions of normalisation channels. These results reduce a major source of systematic uncertainty in several searches for new physics performed through measurements of $B^0_s$ branching fractions.