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Amplitude analysis of $B^\pm \to \pi^\pm K^+ K^-$ decays

The first amplitude analysis of the $B^\pm \to \pi^\pm K^+ K^-$ decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb$^{−1}$ of $pp$ collisions recorded in 2011 and 2012 with the LHCb detector. The data is found to be best described by a coherent sum of five re...

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Autores principales: Aaij, Roel, Abellán Beteta, Carlos, Adeva, Bernardo, Adinolfi, Marco, Aidala, Christine Angela, Ajaltouni, Ziad, Akar, Simon, Albicocco, Pietro, Albrecht, Johannes, Alessio, Federico, Alexander, Michael, Alfonso Albero, Alejandro, Alkhazov, Georgy, Alvarez Cartelle, Paula, Alves Jr, Antonio Augusto, Amato, Sandra, Amerio, Silvia, Amhis, Yasmine, An, Liupan, Anderlini, Lucio, Andreassi, Guido, Andreotti, Mirco, Andrews, Jason, Archilli, Flavio, Arnau Romeu, Joan, Artamonov, Alexander, Artuso, Marina, Arzymatov, Kenenbek, Aslanides, Elie, Atzeni, Michele, Audurier, Benjamin, Bachmann, Sebastian, Back, John, Baker, Sophie, Balagura, Vladislav, Baldini, Wander, Baranov, Alexander, Barlow, Roger, Barsuk, Sergey, Barter, William, Bartolini, Matteo, Baryshnikov, Fedor, Batozskaya, Varvara, Batsukh, Baasansuren, Battig, Alexander, Battista, Vincenzo, Bay, Aurelio, Beddow, John, Bedeschi, Franco, Bediaga, Ignacio, Beiter, Andrew, Bel, Lennaert, Belin, Samuel, Beliy, Nikita, 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Klaver, Suzanne, Klimaszewski, Konrad, Klimkovich, Tatsiana, Koliiev, Serhii, Kolpin, Michael, Kopecna, Renata, Koppenburg, Patrick, Kostiuk, Igor, Kotriakhova, Sofia, Kozeiha, Mohamad, Kravchuk, Leonid, Kreps, Michal, Kress, Felix Johannes, Krokovny, Pavel, Krupa, Wojciech, Krzemien, Wojciech, Kucewicz, Wojciech, Kucharczyk, Marcin, Kudryavtsev, Vasily, Kuonen, Axel Kevin, Kvaratskheliya, Tengiz, Lacarrere, Daniel, Lafferty, George, Lai, Adriano, Lancierini, Davide, Lanfranchi, Gaia, Langenbruch, Christoph, Latham, Thomas, Lazzeroni, Cristina, Le Gac, Renaud, Lefèvre, Regis, Leflat, Alexander, Lemaitre, Florian, Leroy, Olivier, Lesiak, Tadeusz, Leverington, Blake, Li, Pei-Rong, Li, Yiming, Li, Zhuoming, Liang, Xixin, Likhomanenko, Tatiana, Lindner, Rolf, Lionetto, Federica, Lisovskyi, Vitalii, Liu, Guoming, Liu, Xuesong, Loh, David, Loi, Angelo, 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, Machefert, Frederic, Maciuc, Florin, Macko, Vladimir, Mackowiak, Patrick, Maddrell-Mander, Samuel, Maev, Oleg, 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, Martinelli, Maurizio, Martinez Santos, Diego, Martinez Vidal, Fernando, Massafferri, André, Materok, Marcel, Matev, Rosen, Mathad, Abhijit, Mathe, Zoltan, Matteuzzi, Clara, Mattioli, Kara Renee, Mauri, Andrea, Maurice, Emilie, Maurin, Brice, McCann, Michael, McNab, Andrew, McNulty, Ronan, Mead, James Vincent, Meadows, Brian, Meaux, Cedric, Meinert, Nis, Melnychuk, Dmytro, Merk, Marcel, Merli, Andrea, Michielin, Emanuele, 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Williams, Mike, Williams, Mark Richard James, Williams, Timothy, Wilson, Fergus, Winn, Michael Andreas, Wislicki, Wojciech, Witek, Mariusz, Wormser, Guy, Wotton, Stephen, Wyllie, Kenneth, Xiao, Dong, Xie, Yuehong, Xu, Ao, Xu, Menglin, Xu, Qingnian, Xu, Zhirui, Xu, Zehua, 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, Wen Chao, Zhang, Yanxi, Zhelezov, Alexey, Zheng, Yangheng, Zhu, Xianglei, Zhukov, Valery, Zonneveld, Jennifer Brigitta, Zucchelli, Stefano
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.123.231802
http://cds.cern.ch/record/2677052
Descripción
Sumario:The first amplitude analysis of the $B^\pm \to \pi^\pm K^+ K^-$ decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb$^{−1}$ of $pp$ collisions recorded in 2011 and 2012 with the LHCb detector. The data is found to be best described by a coherent sum of five resonant structures plus a nonresonant component and a contribution from $\pi \pi \leftrightarrow KK$ $S$-wave rescattering. The dominant contributions in the $\pi^\pm K^\mp$ and $K^+ K^−$ systems are the nonresonant and the $B^ \pm \to \rho (1450)^0 \pi^\pm$ amplitudes, respectively, with fit fractions around 30$%$. For the rescattering contribution, a sizeable fit fraction is observed. This component has the largest $CP$ asymmetry reported to date for a single amplitude of $(−66 \pm 4 \pm 2) \%$, where the first uncertainty is statistical and the second systematic. No significant $CP$ violation is observed in the other contributions.