Observation of a new $\Xi_b^0$ state

Autor: Aaij, Roel, Abellán Beteta, Carlos, Albrecht, Johannes, Bradley, Matthew John, Braun, Svende, Brea Rodriguez, Alexandre, Brodski, Michael, Brodzicka, Jolanta, Brossa Gonzalo, Arnau, Brundu, Davide, Buonaura, Annarita, Burr, Christopher, Bursche, Albert, Alessio, Federico, Butkevich, Anatoly, Butter, Jordy Sebastiaan, Buytaert, Jan, Byczynski, Wiktor, Cadeddu, Sandro, Cai, Hao, Calabrese, Roberto, Calefice, Lukas, Calero Diaz, Liliet, Cali, Stefano, Alexander, Michael, Calladine, Ryan, Calvi, Marta, Calvo Gomez, Miriam, Camargo Magalhaes, Patricia, Camboni, Alessandro, Campana, Pierluigi, Campora Perez, Daniel Hugo, Campoverde Quezada, Angel Fernando, Capelli, Simone, Capriotti, Lorenzo, Alfonso Albero, Alejandro, Carbone, Angelo, Carboni, Giovanni, Cardinale, Roberta, Cardini, Alessandro, Carli, Ina, Carniti, Paolo, Carvalho Akiba, Kazuyoshi, Casais Vidal, Adrian, Casse, Gianluigi, Cattaneo, Marco, Aliouche, Zakariya, Cavallero, Giovanni, Celani, Sara, Cerasoli, Jacopo, Chadwick, Abbie Jane, Chapman, Matthew George, Charles, Matthew, Charpentier, Philippe, Chatzikonstantinidis, Georgios, Chavez Barajas, Carlos Alberto, Chefdeville, Maximilien, Alkhazov, Georgy, Chen, Chen, Chen, Shanzhen, Chernov, Aleksei, Chitic, Stefan-Gabriel, Chobanova, Veronika, Cholak, Serhii, Chrzaszcz, Marcin, Chubykin, Alexsei, Chulikov, Vladimir, Ciambrone, Paolo, Alvarez Cartelle, Paula, Cicala, Maria Flavia, Cid Vidal, Xabier, Ciezarek, Gregory, Clarke, Peter, Clemencic, Marco, Cliff, Harry, Closier, Joel, Cobbledick, John Leslie, Coco, Victor, Coelho, Joao A. B., Amato, Sandra, Cogan, Julien, Cogneras, Eric, Cojocariu, Lucian, Collins, Paula, Colombo, Tommaso, Congedo, Liliana, Contu, Andrea, Cooke, Naomi, Coombs, George, Corti, Gloria, Amhis, Yasmine, Costa Sobral, Cayo Mar, Couturier, Benjamin, Craik, Daniel Charles, Crkovská, Jana, Cruz Torres, Melissa Maria, Currie, Robert, Da Silva, Cesar Luiz, Dall'Occo, Elena, Dalseno, Jeremy, D'Ambrosio, Carmelo, An, Liupan, Danilina, Anna, d'Argent, Philippe, Davis, Adam, De Aguiar Francisco, Oscar, De Bruyn, Kristof, De Capua, Stefano, De Cian, Michel, De Miranda, Jussara M., De Paula, Leandro, De Serio, Marilisa, Ackernley, Thomas, Anderlini, Lucio, De Simone, Dario, De Simone, Patrizia, de Vries, Jacco, Dean, Cameron Thomas, Dean, William, Decamp, Daniel, Del Buono, Luigi, Delaney, Blaise, Dembinski, Hans Peter, Dendek, Adam, Andreianov, Aleksei, Denysenko, Vadym, Derkach, Denis, Deschamps, Olivier, Desse, Fabrice, Dettori, Francesco, Dey, Biplab, Di Nezza, Pasquale, Didenko, Sergey, Dieste Maronas, Lorena, Dijkstra, Hans, Andreotti, Mirco, Dobishuk, Vasyl, Donohoe, Amanda May, Dordei, Francesca, dos Reis, Alberto C., Douglas, Lauren, Dovbnya, Anatoliy, Downes, Anthony Gavin, Dreimanis, Karlis, Dudek, Maciej Wojciech, Dufour, Laurent, Archilli, Flavio, Duk, Viacheslav, Durante, Paolo, Durham, John Matthew, Dutta, Deepanwita, Dziewiecki, Michal, Dziurda, Agnieszka, Dzyuba, Alexey, Easo, Sajan, Egede, Ulrik, Egorychev, Victor, Artamonov, Alexander, Eidelman, Semen, Eisenhardt, Stephan, Ek-In, Surapat, Eklund, Lars, Ely, Scott, Ene, Alexandru, Epple, Eliane, Escher, Stephan, Eschle, Jonas Nathanael, Esen, Sevda, Artuso, Marina, Evans, Timothy, Falabella, Antonio, Fan, Jingzhou, Fan, Yanting, Fang, Bo, Farley, Nathanael, Farry, Stephen, Fazzini, Davide, Fedin, Petr, Féo, Mauricio, Arzymatov, Kenenbek, Fernandez Declara, Placido, Fernandez Prieto, Antonio, Fernandez-tenllado Arribas, Jose Maria, Ferrari, Fabio, Ferreira Lopes, Lino, Ferreira Rodrigues, Fernando, Ferreres Sole, Silvia, Ferrillo, Martina, Ferro-Luzzi, Massimiliano, Filippov, Sergey, Aslanides, Elie, Fini, Rosa Anna, Fiorini, Massimiliano, Firlej, Miroslaw, Fischer, Kamil Leszek, Fitzpatrick, Conor, Fiutowski, Tomasz, Fleuret, Frederic, Fontana, Marianna, Fontanelli, Flavio, Forty, Roger, Atzeni, Michele, Franco Lima, Vinicius, Franco Sevilla, Manuel, Frank, Markus, Franzoso, Edoardo, Frau, Giulia, Frei, Christoph, Friday, David Anthony, Fu, Jinlin, Fuehring, Quentin, Funk, Wolfgang, Audurier, Benjamin, Gabriel, Emmy, Gaintseva, Tatiana, Gallas Torreira, Abraham, Galli, Domenico, Gambetta, Silvia, Gan, Yuyue, Gandelman, Miriam, Gandini, Paolo, Gao, Yuanning, Garau, Michela, Adeva, Bernardo, Bachmann, Sebastian, Garcia Martin, Luis Miguel, Garcia Moreno, Paula, García Pardiñas, Julián, Garcia Plana, Beatriz, Garcia Rosales, Felipe Andres, Garrido, Lluis, Gaspar, Clara, Geertsema, Robbert Erik, Gerick, David, Gerken, Louis Lenard, Bachmayer, Marie, Gersabeck, Evelina, Gersabeck, Marco, Gershon, Timothy, Gerstel, Dawid, Ghez, Philippe, Gibson, Valerie, Giovannetti, Matteo, Gioventù, Alessandra, Gironella Gironell, Pere, Giubega, Lavinia-Helena, Back, John, Giugliano, Carmen, Gizdov, Konstantin, Gkougkousis, Evangelos Leonidas, Gligorov, Vladimir, Göbel, Carla, Golobardes, Elisabet, Golubkov, Dmitry, Golutvin, Andrey, Gomes, Alvaro, Gomez Fernandez, Sergio, Baker, Sophie, Goncalves Abrantes, Fernanda, Goncerz, Mateusz, Gong, Guanghua, Gorbounov, Petr, Gorelov, Igor Vladimirovich, Gotti, Claudio, Govorkova, Ekaterina, Grabowski, Jascha Peter, Graciani Diaz, Ricardo, Grammatico, Thomas, Baladron Rodriguez, Pablo, Granado Cardoso, Luis Alberto, Graugés, Eugeni, Graverini, Elena, Graziani, Giacomo, Grecu, Alexandru, Greeven, Lex Marinus, Griffith, Peter, Grillo, Lucia, Gromov, Sergey, Gruberg Cazon, Barak Raimond, Balagura, Vladislav, Gu, Chenxi, Guarise, Marco, Günther, Paul Andre, Gushchin, Evgeny, Güth, Andreas, Guz, Yury, Gys, Thierry, Hadavizadeh, Thomas, Haefeli, Guido, Haen, Christophe, Baldini, Wander, Haimberger, Jakob, Haines, Susan, Halewood-leagas, Tabitha, Hamilton, Phoebe Meredith, Han, Qundong, Han, Xiaoxue, Hancock, Thomas Henry, Hansmann-Menzemer, Stephanie, Harnew, Neville, Harrison, Thomas, Baptista Leite, Juan, Hasse, Christoph, Hatch, Mark, He, Jibo, Hecker, Malte, Heijhoff, Kevin, Heinicke, Kevin, Hennequin, Arthur Marius, Hennessy, Karol, Henry, Louis, Heuel, Johannes, Barlow, Roger, Hicheur, Adlène, Hill, Donal, Hilton, Martha, Hollitt, Sophie Elizabeth, Hu, Jiangqiao, Hu, Jifeng, Hu, Wenhua, Huang, Wenqian, Huang, Xiaotao, Hulsbergen, Wouter, Barsuk, Sergey, Hunter, Ross John, Hushchyn, Mikhail, Hutchcroft, David, Hynds, Daniel, Ibis, Philipp, Idzik, Marek, Ilin, Dmitrii, Ilten, Philip, Inglessi, Alexander, Ishteev, Artur, Adinolfi, Marco, Barter, William, Ivshin, Kuzma, Jacobsson, Richard, Jakobsen, Sune, Jans, Eddy, Jashal, Brij Kishor, Jawahery, Abolhassan, Jevtic, Vukan, Jezabek, Marek, Jiang, Feng, John, Malcolm, Bartolini, Matteo, Johnson, Daniel, Jones, Christopher, Jones, Thomas Peter, Jost, Beat, Jurik, Nathan, Kandybei, Sergii, Kang, Youen, Karacson, Matthias, Kazeev, Nikita, Keizer, Floris, Baryshnikov, Fedor, Kenzie, Matthew, Ketel, Tjeerd, Khanji, Basem, Kharisova, Anastasiia, Kholodenko, Sergei, Kim, Kyung Eun, Kirn, Thomas, Kirsebom, Veronica Soelund, Kitouni, Ouail, Klaver, Suzanne, Basels, Jan-Marc, Klimaszewski, Konrad, Koliiev, Serhii, Kondybayeva, Almagul, Konoplyannikov, Anatoly, Kopciewicz, Pawel, Kopecna, Renata, Koppenburg, Patrick, Korolev, Mikhail, Kostiuk, Igor, Kot, Oleksander, Bassi, Giovanni, Kotriakhova, Sofia, Kravchenko, Polina, Kravchuk, Leonid, Krawczyk, Rafal Dominik, Kreps, Michal, Kress, Felix Johannes, Kretzschmar, Sophie Katharina, Krokovny, Pavel, Krupa, Wojciech, Krzemien, Wojciech, Batsukh, Baasansuren, Kucewicz, Wojciech, Kucharczyk, Marcin, Kudryavtsev, Vasily, Kuindersma, Hilbrand Steffen, Kunde, Gerd Joachim, Kvaratskheliya, Tengiz, Lacarrere, Daniel, Lafferty, George, Lai, Adriano, Lampis, Andrea, Battig, Alexander, Lancierini, Davide, Lane, John Jake, Lane, Richard, Lanfranchi, Gaia, Langenbruch, Christoph Michael, Langer, Jan, Lantwin, Oliver, Latham, Thomas, Lazzari, Federico, Le Gac, Renaud, Bay, Aurelio, Lee, Sook Hyun, Lefèvre, Regis, Leflat, Alexander, Legotin, Sergey, Leroy, Olivier, Lesiak, Tadeusz, Leverington, Blake, Li, Hengne, Li, Lei, Li, Peilian, Becker, Maik, Li, Xuan, Li, Yiming, Li, Yutong, Li, Zhuoming, Liang, Xixin, Lin, Tai-hua, Lindner, Rolf, Lisovskyi, Vitalii, Litvinov, Roman, Liu, Guoming, Bedeschi, Franco, Liu, Huanhuan, Liu, Shuaiyi, Liu, Xuesong, Loi, Angelo, Lomba Castro, Julian, Longstaff, Iain, Lopes, Jose, Loustau, Guillermo, Lovell, George Holger, Lu, Yu, Afsharnia, Hossein, Bediaga, Ignacio, Lucchesi, Donatella, Luchuk, Stanislav, Lucio Martinez, Miriam, Lukashenko, Valeriia, Luo, Yiheng, Lupato, Anna, Luppi, Eleonora, Lupton, Oliver, Lusiani, Alberto, Lyu, Xiao-Rui, Beiter, Andrew, Ma, Lishuang, Maccolini, Serena, Machefert, Frederic, Maciuc, Florin, Macko, Vladimir, Mackowiak, Patrick, Maddrell-Mander, Samuel, Madejczyk, Olga, Madhan Mohan, Lakshan Ram, Maev, Oleg, Belavin, Vladislav, Maevskiy, Artem, Maisuzenko, Dmitrii, Majewski, Maciej Witold, Malde, Sneha, Malecki, Bartosz, Malinin, Alexander, Maltsev, Timofei, Malygina, Hanna, Manca, Giulia, Mancinelli, Giampiero, Belin, Samuel, Manera Escalero, Rafel, Manuzzi, Daniele, Marangotto, Daniele, Maratas, Jan, Marchand, Jean François, Marconi, Umberto, Mariani, Saverio, Marin Benito, Carla, Marinangeli, Matthieu, Marino, Pietro, Bellee, Violaine, Marks, Jörg, Marshall, Phillip John, Martellotti, Giuseppe, Martinazzoli, Loris, Martinelli, Maurizio, Martinez Santos, Diego, Martinez Vidal, Fernando, Massafferri, André, Materok, Marcel, Matev, Rosen, Belous, Konstantin, Mathad, Abhijit, Mathe, Zoltan, Matiunin, Viacheslav, Matteuzzi, Clara, Mattioli, Kara Renee, Mauri, Andrea, Maurice, Emilie, Mauricio, Juan, Mazurek, Michal Kazimierz, McCann, 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Simi, Gabriele, Simone, Saverio, Skiba, Igor, Skidmore, Nicola, Skwarnicki, Tomasz, Slater, Mark, Smallwood, Jennifer Clare, Ajaltouni, Ziad, Bjørn, Mikkel, Smeaton, John Gordon, Smetkina, Anastasia, Smith, Eluned, Smith, Mark, Snoch, Aleksandra, Soares, Marcelo, Soares Lavra, Lais, Sokoloff, Michael, Soler, Paul, Solovev, Aleksandr, Blago, Michele Piero, Solovyev, Ivan, Souza De Almeida, Felipe Luan, Souza De Paula, Bruno, Spaan, Bernhard, Spadaro Norella, Elisabetta, Spradlin, Patrick, Stagni, Federico, Stahl, Marian, Stahl, Sascha, Stefko, Pavol, Blake, Thomas, Steinkamp, Olaf, Stemmle, Simon, Stenyakin, Oleg, Stevens, Holger, Stone, Sheldon, Stramaglia, Maria Elena, Straticiuc, Mihai, Strekalina, Daria, Strokov, Sergey, Suljik, Fidan, Blanc, Frederic, Sun, Jiayin, Sun, Liang, Sun, Yipeng, Svihra, Peter, Swallow, Paul Nathaniel, Swientek, Krzysztof, Szabelski, Adam, Szumlak, Tomasz, Szymanski, Maciej Pawel, Taneja, Shantam, Blusk, Steven, Teubert, Frederic, Thomas, Eric, Thomson, Kayleigh Anne, Tilley, Matthew James, Tisserand, Vincent, T'Jampens, Stephane, Tobin, Mark, Tolk, Siim, Tomassetti, Luca, Torres Machado, Diego, Bobulska, Dana, Tou, Da Yu, Traill, Murdo, Tran, Minh Tâm, Trifonova, Ekaterina, Trippl, Carina, Tuci, Giulia, Tully, Alison, Tuning, Niels, Ukleja, Artur, Unverzagt, Daniel Joachim, Boelhauve, Julian Alexander, Usachov, Andrii, Ustyuzhanin, Andrey, Uwer, Ulrich, Vagner, Alexander, Vagnoni, Vincenzo, Valassi, Andrea, Valenti, Giovanni, Valls Canudas, Nuria, van Beuzekom, Martinus, Van Hecke, Hubert, Boente Garcia, Oscar, van Herwijnen, Eric, Van Hulse, Charlotte Barbara, van Veghel, Maarten, Vazquez Gomez, Ricardo, Vazquez Regueiro, Pablo, Vázquez Sierra, Carlos, Vecchi, Stefania, Velthuis, Jaap, Veltri, Michele, Venkateswaran, Aravindhan, Boettcher, Thomas, Veronesi, Michele, Vesterinen, Mika, Vieira, Daniel, Vieites Diaz, Maria, Viemann, Harald, Vilasis-Cardona, Xavier, Vilella Figueras, Eva, Vincent, Pascal, Vitali, Giacomo, Vollhardt, Achim, Boldyrev, Alexey, Vom Bruch, Dorothea, Vorobyev, Alexey, Vorobyev, Vitaly, Voropaev, Nikolai, Waldi, Roland, Walsh, John, Wang, Chishuai, Wang, Jianqiao, Wang, Jike, Wang, Jialu, Akar, Simon, Bondar, Alexander, Wang, Jianchun, Wang, Mengzhen, Wang, Rui, Wang, Yilong, Wang, Zhenzi, Wark, Heather Mckenzie, Watson, Nigel, Weber, Steffen Georg, Websdale, David, Weisser, Constantin, Bondar, Nikolay, 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, Borghi, Silvia, Wislicki, Wojciech, Witek, Mariusz, Witola, Lukas, Wormser, Guy, Wotton, Stephen, Wu, Hangyi, Wyllie, Kenneth, Xiang, Zhiyu, Xiao, Dong, Xie, Yuehong, Borisyak, Maxim, Xu, Ao, Xu, Jingyi, Xu, Li, Xu, Menglin, Xu, Qingnian, Xu, Zhihao, Xu, Zehua, Yang, Di, Yang, Youhua, Yang, Zhenwei, Borsato, Martino, Yang, Zishuo, Yao, Yuezhe, Yeomans, Lauren Emma, Yin, Hang, Yu, Jiesheng, Yuan, Xuhao, Yushchenko, Oleg, Zarebski, Kristian Alexander, Zavertyaev, Mikhail, Zdybal, Milosz, Borsuk, Jozef Tomasz, Zenaiev, Oleksandr, Zeng, Ming, Zhang, Dongliang, Zhang, Liming, Zhang, Shunan, Zhang, Yanxi, Zhang, Yu, Zhelezov, Alexey, Zheng, Yangheng, Zhou, Xiaokang, Bouchiba, Sonia Amina, Zhou, Yixiong, Zhu, Xianglei, Zhukov, Valery, Zonneveld, Jennifer Brigitta, Zucchelli, Stefano, Zuliani, Davide, Zunica, Gianluca, LHCb Collaboration, Bowcock, Themistocles, Boyer, Alexandre, Bozzi, Concezio
Přispěvatelé: Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), LHCb, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
B180W
p p: scattering
baryon resonance: width
branching ratio [baryon resonance]
hadroproduction [baryon resonance]
(Xi/b- pi+) [mass spectrum]
measured [width]
S069DML
High Energy Physics - Experiment
width [mass]
Xi/b0: excited state
baryon resonance: hadroproduction
B199M
mass: width
width [baryon resonance]
fragmentation
scattering [p p]
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
B199W
Particle Physics Experiments
ddc:530
mass: measured [baryon resonance]
B199.1
B180W0
LHC-B
B180M0
baryon resonance: branching ratio
CERN LHC Coll
kinematics
baryon resonance: hadronic decay
baryon resonance: mass: measured
excited state [Xi/b0]
B180M
colliding beams [p p]
statistical
width: measured
mass spectrum: (Xi/b- pi+)
p p: colliding beams
Particle Physics - Experiment
hadronic decay [baryon resonance]
experimental results
Zdroj: Phys.Rev.D
Phys.Rev.D, 2021, 103 (1), pp.012004. ⟨10.1103/PhysRevD.103.012004⟩
Physical review / D 103(1), 012004 (2021). doi:10.1103/PhysRevD.103.012004
DOI: 10.18154/RWTH-2021-01915
Popis: Physical review / D 103(1), 012004 (2021). doi:10.1103/PhysRevD.103.012004
Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 8.5 fb$^{-1}$, the observation of a new excited $��_b^0$ resonance decaying to the $��_b^- ��^+$ final state is presented. The state, referred to as $��_b(6227)^0$, has a measured mass and natural width of $m(��_b(6227)^0)=6227.1_{-1.5}^{+1.4}��0.5$ MeV and $��(��_b(6227)^0)=18.6_{-4.1}^{+5.0}��1.4$ MeV, where the uncertainties are statistical and systematic. The production rate of the $��_b(6227)^0$ state relative to that of the $��_b^-$ baryon in the kinematic region $2 < �� < 5$ and $p_T < 30$ GeV is measured to be $\frac{f_{��_b(6227)^0}} {f��_b^-}$ $\mathcal{B}(��_b(6227)^0) ��� ��_b^- ��^+)=0.045��0.008��0.004$, where $\mathcal{B}(��_b(6227)^0 ��� ��_b^- ��^+)$ is the branching fraction of the decay, and $f_{��_b(6227)^0}$ and $f_{��_b^-}$ represent fragmentation fractions. Improved measurements of the mass and natural width of the previously observed $��_b(6227)^-$ state, along with the mass of the ��b- baryon, are also reported. Both measurements are significantly more precise than, and consistent with, previously reported values.
Published by Inst., Melville, NY
Databáze: OpenAIRE