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Observation of five new narrow $\Omega_c^0$ states decaying to $\Xi^+_c K^-$

The $\Xi^+_c K^-$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb$^{-1}$, collected by the LHCb experiment. The $\Xi^+_c$ is reconstructed in the decay mode $pK^- \pi^+$. Five new, narrow excited $\Omega_c^0$ states are observed: th...

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Jiang, Feng, John, Malcolm, Johnson, Daniel, Jones, Christopher, Joram, Christian, Jost, Beat, Jurik, Nathan, Kandybei, Sergii, Karacson, Matthias, Kariuki, James Mwangi, Karodia, Sarah, Kecke, Matthieu, Kelsey, Matthew, Kenzie, Matthew, Ketel, Tjeerd, Khairullin, Egor, Khanji, Basem, Khurewathanakul, Chitsanu, Kirn, Thomas, Klaver, Suzanne, Klimaszewski, Konrad, Klimkovich, Tatsiana, Koliiev, Serhii, Kolpin, Michael, Komarov, Ilya, Kopecna, Renata, Koppenburg, Patrick, Kosmyntseva, Alena, Kotriakhova, Sofia, Kozachuk, Anastasiia, Kozeiha, Mohamad, Kravchuk, Leonid, Kreps, Michal, Krokovny, Pavel, Kruse, Florian, Krzemien, Wojciech, Kucewicz, Wojciech, Kucharczyk, Marcin, Kudryavtsev, Vasily, Kuonen, Axel Kevin, Kurek, Krzysztof, Kvaratskheliya, Tengiz, Lacarrere, Daniel, Lafferty, George, Lai, Adriano, Lanfranchi, Gaia, Langenbruch, Christoph, Latham, Thomas, Lazzeroni, Cristina, Le Gac, Renaud, van Leerdam, Jeroen, Leflat, Alexander, Lefrançois, Jacques, Lefèvre, Regis, Lemaitre, 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Valat, Sebastien, Valenti, Giovanni, Vazquez Gomez, Ricardo, Vazquez Regueiro, Pablo, Vecchi, Stefania, van Veghel, Maarten, Velthuis, Jaap, Veltri, Michele, Veneziano, Giovanni, Venkateswaran, Aravindhan, Verlage, Tobias Anton, Vernet, Maxime, Vesterinen, Mika, Viana Barbosa, Joao Vitor, Viaud, Benoit, Vieira, Daniel, Vieites Diaz, Maria, Viemann, Harald, Vilasis-Cardona, Xavier, Vitti, Marcela, Volkov, Vladimir, Vollhardt, Achim, Voneki, Balazs, Vorobyev, Alexey, Vorobyev, Vitaly, Voß, Christian, de Vries, Jacco, Vázquez Sierra, Carlos, Waldi, Roland, Wallace, Charlotte, Wallace, Ronan, Walsh, John, Wang, Jianchun, Ward, David, Wark, Heather Mckenzie, Watson, Nigel, Websdale, David, Weiden, Andreas, Whitehead, Mark, Wicht, Jean, Wilkinson, Guy, Wilkinson, Michael, Williams, Mark Richard James, Williams, Matthew, Williams, Mike, Williams, Timothy, Wilson, Fergus, Wimberley, Jack, Winn, Michael Andreas, Wishahi, Julian, Wislicki, Wojciech, Witek, Mariusz, Wormser, Guy, Wotton, Stephen, Wraight, Kenneth, Wyllie, Kenneth, Xie, Yuehong, Xing, Zhou, Xu, Zhirui, Yang, Zhenwei, Yang, Zishuo, Yao, Yuezhe, Yin, Hang, Yu, Jiesheng, Yuan, Xuhao, Yushchenko, Oleg, Zarebski, Kristian Alexander, Zavertyaev, Mikhail, Zhang, Liming, Zhang, Yanxi, Zhelezov, Alexey, Zheng, Yangheng, Zhu, Xianglei, Zhukov, Valery, Zucchelli, Stefano
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.118.182001
http://cds.cern.ch/record/2262802
Descripción
Sumario:The $\Xi^+_c K^-$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb$^{-1}$, collected by the LHCb experiment. The $\Xi^+_c$ is reconstructed in the decay mode $pK^- \pi^+$. Five new, narrow excited $\Omega_c^0$ states are observed: the $\Omega_c (3000)^0$, $\Omega_c (3050)^0$, $\Omega_c (3066)^0$, $\Omega_c (3090)^0$, and $\Omega_c (3119)^0$. Measurements of their masses and widths are reported.