First observation of B+ -> D-s(+) K+ K- decays and a search for B+ -> D-s(+) phi decays
| Popis: | A search for $B^{+} \to D_s^{+}K^{+}K^{-}$ decays is performed using $pp$ collision data corresponding to an integrated luminosity of 4.8 fb$^{-1}$, collected at centre-of-mass energies of 7, 8 and 13$\,$TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be \begin{equation*} \mathcal{B}(B^{+} \to D_s^{+}K^{+}K^{-} ) = (7.1 \pm 0.5 \pm 0.6 \pm 0.7) \times 10^{-6}, \end{equation*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode $B^{+} \to D_s^{+} \overline{\kern -0.2em D}^{0}$. A search is also performed for the pure annihilation decay $B^{+} \to D_s^{+}\phi$. No significant signal is observed and a limit of \begin{equation*} \mathcal{B}(B^{+} \to D_s^{+}\phi) < 4.9 \times 10^{-7}~(4.2 \times 10^{-7}) \end{equation*} is set on the branching fraction at 95$\%$ (90$\%$) confidence level. Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2017-032.html |
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| Popis souboru: | application/pdf; ELETTRONICO |
| Jazyk: | English |
| ISSN: | 1126-6708 1029-8479 |
| DOI: | 10.1007/JHEP01(2018)131 |
| DOI: | 10.1007/JHEP01(2018)131⟩ |
| DOI: | 10.1007/JHEP01(2018)131〉 |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddf5cf0d47f897f9952311bb89037ada https://research.rug.nl/en/publications/8aaf4a6d-1bf9-431b-b58a-967d724a1b48 |
| Rights: | OPEN |
| Přírůstkové číslo: | edsair.doi.dedup.....ddf5cf0d47f897f9952311bb89037ada |
| Autor: | C. Marin Benito, Dmitry Popov, Simon Akar, Klaus Fohl, E. Bowen, A. Bay, R. Schwemmer, X. Han, Andreas Weiden, A. Romero Vidal, Constantin Weisser, Jonas Rademacker, Miriam Heß, T. Skwarnicki, X. Cid Vidal, F. Muheim, Emilie Bertholet, Xiao-Rui Lyu, Mika Vesterinen, Varvara Batozskaya, Tobias Tekampe, Eluned Smith, Sophie Richards, Malte Hecker, Marina Artuso, Alexander Vagner, R. Calabrese, A. Cook, Cedric Meaux, R. Santacesaria, Gerard Fernandez, J. Wimberley, T. J. V. Bowcock, Giulia Tellarini, Julien Cogan, R. Matev, B. Rachwal, L. Garrido, C. Baesso, Marcello Rotondo, B. Schmidt, Ivan Belyaev, J. H. Lopes, Andrey Tayduganov, Wenhua Hu, Y. Zhang, Malgorzata Pikies, S. Blusk, V. Gibson, Davide Fazzini, Daniel Berninghoff, Vincenzo Vagnoni, Giovanni Carboni, Alessandra Pastore, A. Semennikov, G. Raven, D. Decamp, A. Golutvin, Alexander Bondar, Stephen M. Stahl, N. Neufeld, A. Oyanguren, Sofia Kotriakhova, M. Veltri, G. Haefeli, Stephane T'Jampens, Vlad-Mihai Placinta, Jennifer Brigitta Zonneveld, L. Shekhtman, A. Dosil Suárez, Simon Stemmle, D. Ferguson, S. Playfer, Frank Ferrari, V. Salustino Guimaraes, James Mwangi Kariuki, R. McNulty, Pavol Stefko, M. Ebert, R. B. Appleby, Luca Federici, Lennaert Bel, G. Alkhazov, Michael McCann, J. R. Smith, Valery Pugatch, Vladimir Romanovskiy, A. Zhelezov, Olivier Göran Girard, S. Gallorini, F. Da Cunha Marinho, Matthieu Kecke, Wouter Hulsbergen, Alessandro Camboni, W. Qian, Fedor Baryshnikov, Luca Minzoni, Eduardo Rodrigues, Michal Dziewiecki, Zhuoming Li, Albert Comerma-Montells, Axel Kevin Kuonen, P. Gandini, Luca Pescatore, T. Ruf, Michael Kolpin, G. Lanfranchi, M.-N. Minard, O. De Aguiar Francisco, B. Sanmartin Sedes, F. J. P. Soler, Roger Forty, E. Santovetti, Gabriele Simi, Mikhail Hushchyn, S. Ricciardi, Igor Bordyuzhin, S. Amerio, W. Wislicki, George Coombs, Adam Davis, A. Artamonov, T. A. Verlage, M. Boubdir, Mirco Andreotti, I. Longstaff, R. Nandakumar, Guy Wilkinson, Luciano Pappalardo, Teng Li, K. Wyllie, B. Pietrzyk, Elnur Sadykhov, Barbara Sciascia, Boris Quintana, D. Campora Perez, Victor Renaudin, P. Alvarez Cartelle, Carmelo D'Ambrosio, Jean François Marchand, Oleg Stenyakin, J. Jalocha, C. Sanchez Mayordomo, V. Kudryavtsev, D. R. Ward, Christian Voß, A. Vorobyev, Konstantin Gizdov, Wiktor Byczynski, Kenneth Wraight, G. Manca, O. Schneider, Roman Greim, Xuhao Yuan, Jiayin Sun, M. Calvo Gomez, C. Khurewathanakul, C. Santamarina Rios, Titus Mombächer, G. Martellotti, Konstantinos Petridis, J. A. Rodriguez Lopez, Giovanni Passaleva, Simone Bifani, Chung Nguyen-Mau, Sandra Amato, W. Sutcliffe, F. Martinez Vidal, Laura Gavardi, Alexey Badalov, Iwan Thomas Smith, Tjeerd Ketel, Francis Toriello, A. Petrolini, Holger Stevens, Hang Yin, S. Ali, S. C. Haines, A. Hicheur, G. Valenti, K. Belous, G. Corti, Guido Andreassi, Agnieszka Oblakowska-Mucha, M. De Serio, H. V. Cliff, D. Lacarrere, M. Shapkin, M. Merk, E. Lemos Cid, Federico Alessio, Wojciech Kucewicz, M. Xu, Y. H. Zheng, Simone Stracka, C. J. G. Onderwater, S. Roiser, Maxime Vernet, Sarah Beranek, Alessandro Pistone, C. Gaspar, J. García Pardiñas, Karol Hennessy, Y. Shcheglov, Hannah Louise Pullen, A. Rogozhnikov, Jing Wang, T. Kvaratskheliya, R. Lindner, C. Fitzpatrick, Markus Frank, Louis Henry, A. Mazurov, J. He, L. Del Buono, A. Dzyuba, Alex Pearce, Daniel Charles Craik, Lucia Grillo, C. Matteuzzi, Jolanta Brodzicka, Marco Petruzzo, Tatiana Likhomanenko, Matthew Kenzie, R. Silva Coutinho, S. Easo, Miroslaw Firlej, Alla Nogay, Tomasz Fiutowski, Marian Stahl, P. Collins, T. Nikodem, F. Stagni, Giulio Dujany, Vincenzo Battista, S. Esen, G. Mancinelli, C. Parkes, Y. N. Gao, M. Charles, C. Lazzeroni, Alexey A. Petrov, A. McNab, P. Campana, Bartosz Malecki, H.-P. Dembinski, Slavomira Stefkova, Vladimir Macko, I. Nasteva, Roland Bernet, Paolo Carniti, Meril Reboud, E. Picatoste Olloqui, A. Palano, Tomasz Szumlak, Daniele Marangotto, J. 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Poli Lener, Nikita Kazeev, N. Sagidova, Alison Tully, Yuezhe Yao, E. Polycarpo, Tatsuya Nakada, Christopher Burr, G. Bencivenni, L. Cassina, M. Baalouch, T. Britton, S. Karodia, Johannes Albrecht, Malcolm John, A. A. Alves, M. van Veghel, Andrea Bizzeti, Fedor Ratnikov, J. van Tilburg, T. Lesiak, Michele Atzeni, Andrii Usachov, l. Soares Lavra, M. Gandelman, Matteo Palutan, S. Schael, D. Hill, Maurizio Martinelli, B. Storaci, A. Tsaregorodtsev, Xia-Ji Liu, Timofei Maltsev, J. Serrano, Violetta Cogoni, E. Grauges, Anna Lupato, Luca Tomassetti, Gediminas Sarpis, M. Tresch, S. Monteil, S. A. Wotton, E. Gushchin, Oliver Grünberg, Dmitrii Maisuzenko, C. Hombach, Paul Seyfert, Hans Dijkstra, Maxim Borisyak, Philip Ilten, Rudolf Oldeman, Ivan Polyakov, S. Tolk, Francesca Dordei, N. Tuning, Violaine Bellee, Tommaso Colombo, F. Maciuc, Massimiliano Fiorini, Abhijit Mathad, Manuel Schiller, J. J. Walsh, Lauren Douglas, Arno Heister, Roberta Cardinale, Mark Hatch, C. M. 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Ruiz Valls, Thomas Hadavizadeh, Yu. Guz, P. De Simone, R. Vazquez Gomez, Sebastien Ponce, Marie Helene Schune, D. Tonelli, A. C. dos Reis, Alessandro Cardini, J. M. De Miranda, N. Skidmore, James Vincent Mead, Dmitry Golubkov, D. Galli, Margarita Stepanova, Marco Adinolfi, Paras Naik, A. Fernandez Prieto, Emmy Gabriel, U. Egede, H. Luo, Alessio Sarti, M. Ravonel Salzgeber, B. Hamilton, Benedetto Gianluca Siddi, Jascha Peter Grabowski, Dominik Stefan Mitzel, V. Shevchenko, Preema Rennee Pais, Emanuele Michielin, Claudio Gotti, P. d'Argent, Sean Benson, U. Straumann, M. De Cian, M. van Beuzekom, Elena Graverini, Olivier Deschamps, Scott Ely, Maria Elena Stramaglia, B. Spaan, J. Closier, A. Massafferri, Dominik Müller, Alexander Baranov, Flavio Archilli, Srikanth Sridharan, V. Bocci, Igor Babuschkin, Cameron Thomas Dean, Roel Aaij, Patrick Mackowiak, D. Pinci, Jinlin Fu, O. Steinkamp, Y.Y. Li, V. Egorychev, Roger Barlow, William Barter, Simon Baker, Angelo Carbone, Jaap Velthuis, S. 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| Přispěvatelé: | Precision Frontier, Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves Jr, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J.E., Appleby, R.B., Archilli, F., d'Argent, P., Arnau Romeu, J., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Auriemma, G., Baalouch, M., Babuschkin, I., Bachmann, S., Back, J.J., Badalov, A., Baesso, C., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R.J., Barschel, C., Barsuk, S., Barter, W., Baryshnikov, F., Batozskaya, V., Battista, V., Bay, A., Beaucourt, L., Beddow, J., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L.J., Beliy, N., Bellee, V., Belloli, N., Belous, K., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M.-O., van Beuzekom, M., Bezshyiko, Ia., Bifani, S., Billoir, P., Birnkraut, A., Bizzeti, A., Bjørn, M., Blake, T., Blanc, F., Blusk, S., Bocci, V., Boettcher, T., Bondar, A., Bondar, N., Bordyuzhin, I., Borghi, S., Borisyak, M., Borsato, M., Bossu, F., Boubdir, M., Bowcock, T.J.V., Bowen, E., Bozzi, C., Braun, S., Britton, T., Brodzicka, J., Brundu, D., Buchanan, E., Burr, C., Bursche, A., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calladine, R., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Campora Perez, D.H., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Carvalho Akiba, K., Casse, G., Cassina, L., Cattaneo, M., Cavallero, G., Cenci, R., Chamont, D., Chapman, M.G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chen, S., Cheung, S.F., Chitic, S.-G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cid Vidal, X., Ciezarek, G., Clarke, P.E.L., Clemencic, M., Cliff, H.V., Closier, J., Cogan, J., Cogneras, E., Cogoni, V., Cojocariu, L., Collins, P., Colombo, T., Comerma-Montells, A., Contu, A., Cook, A., Coombs, G., Coquereau, S., Corti, G., Corvo, M., Costa Sobral, C.M., Couturier, B., Cowan, G.A., Craik, D.C., Crocombe, A., Cruz Torres, M., Currie, R., D'Ambrosio, C., Da Cunha Marinho, F., Dall'Occo, E., Dalseno, J., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, P., Dean, C.T., Decamp, D., Del Buono, L., Dembinski, H.-P., Demmer, M., Dendek, A., Derkach, D., Deschamps, O., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Dijkstra, H., Dordei, F., Dorigo, M., Dosil Suárez, A., Douglas, L., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Dzhelyadin, R., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Ebert, M., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., Ely, S., Esen, S., Evans, H.M., Evans, T., Falabella, A., Farley, N., Farry, S., Fazzini, D., Federici, L., Ferguson, D., Fernandez, G., Fernandez Declara, P., Fernandez Prieto, A., Ferrari, F., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fohl, K., Fontana, M., Fontanelli, F., Forshaw, D.C., Forty, R., Franco Lima, V., Frank, M., Frei, C., Fu, J., Funk, W., Furfaro, E., Färber, C., Gabriel, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gandelman, M., Gandini, P., Gao, Y., Garcia Martin, L.M., García Pardiñas, J., Garra Tico, J., Garrido, L., Garsed, P.J., Gascon, D., Gaspar, C., Gavardi, L., Gazzoni, G., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, Ph., Gianì, S., Gibson, V., Girard, O.G., Giubega, L., Gizdov, K., Gligorov, V.V., Golubkov, D., Golutvin, A., Gomes, A., Gorelov, I.V., Gotti, C., Govorkova, E., Grabowski, J.P., Graciani Diaz, R., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B.R., Grünberg, O., Gushchin, E., Guz, Yu., Gys, T., Göbel, C., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S.C., Hamilton, B., Han, X., Hancock, T.H., Hansmann-Menzemer, S., Harnew, N., Harnew, S.T., Hasse, C., Hatch, M., He, J., Hecker, M., Heinicke, K., Heister, A., Hennessy, K., Henrard, P., Henry, L., van Herwijnen, E., Heß, M., Hicheur, A., Hill, D., Hombach, C., Hopchev, P.H., Hu, W., Huard, Z.C., Hulsbergen, W., Humair, T., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilten, P., Jacobsson, R., Jalocha, J., Jans, E., Jawahery, A., Jiang, F., John, M., Johnson, D., Jones, C.R., Joram, C., Jost, B., Jurik, N., Kandybei, S., Karacson, M., Kariuki, J.M., Karodia, S., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khairullin, E., Khanji, B., Khurewathanakul, C., Kirn, T., Klaver, S., Klimaszewski, K., Klimkovich, T., Koliiev, S., Kolpin, M., Kopecna, R., Koppenburg, P., Kosmyntseva, A., Kotriakhova, S., Kozeiha, M., Kravchuk, L., Kreps, M., Kress, F., Krokovny, P., Kruse, F., Krzemien, W., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kuonen, A.K., Kvaratskheliya, T., Lacarrere, D., Lafferty, G., Lai, A., Lanfranchi, G., Langenbruch, C., Latham, T., Lazzeroni, C., Le Gac, R., Leflat, A., Lefrançois, J., Lefèvre, R., Lemaitre, F., Lemos Cid, E., Leroy, O., Lesiak, T., Leverington, B., Li, P.-R., Li, T., Li, Y., Li, Z., Likhomanenko, T., Lindner, R., Lionetto, F., Lisovskyi, V., Liu, X., Loh, D., Loi, A., Longstaff, I., Lopes, J.H., Lucchesi, D., Lucio Martinez, M., Luo, H., Lupato, A., Luppi, E., Lupton, O., Lusiani, A., Lyu, X., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Maev, O., Maguire, K., Maisuzenko, D., Majewski, M.W., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Manca, G., Mancinelli, G., Marangotto, D., Maratas, J., Marchand, J.F., Marconi, U., Marin Benito, C., Marinangeli, M., 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Zheng, Y., Zhu, X., Zhukov, V., Zonneveld, J.B., Zucchelli, S., 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 l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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 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 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), LHCb, Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, J, Appleby, R, Archilli, F, D’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, J, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, L, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, 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d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont ( LPC ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Clermont Auvergne ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Physique des Particules de Marseille ( CPPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Aix Marseille Université ( AMU ), Laboratoire d'Annecy de Physique des Particules ( LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules ), 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 de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Albero, A. 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M., Mccann, M., Mcnab, A., Mcnulty, R., Mead, J. V., Milanes, D. A., Minard, M. -N., Mitzel, D. S., Mombaecher, T., Monroy, I. A., Morello, M. J., Morris, A. B., Mueller, D., Mueller, J., Mueller, K., Mueller, V., Nguyen, T. D., O'Hanlon, D. P., Onderwater, C. J. G., Otalora Goicochea, J. M., Pais, P. R., Pappalardo, L. L., Altarelli, M. Pepe, Casasus, M. Plo, Lener, M. Poli, Pomery, G. J., Navarro, A. Puig, Rademacker, J. H., Rangel, M. S., Salzgeber, M. Ravonel, dos Reis, A. C., Rodrigues, A. B., Rodriguez Lopez, J. A., Ronayne, J. W., Rudolph, M. S., Saborido Silva, J. J., Saunders, D. M., Schreiner, H. F., Schune, M. -H., Sepulveda, E. S., Siddi, B. G., Coutinho, R. Silva, Smith, I. T., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Stramaglia, M. E., Tilley, M. J., Tran, M. T., Gomez, R. Vazquez, Velthuis, J. J., Verlage, T. A., Barbosa, J. V. Viana, Voss, C., de Vries, J. A., Vazquez Sierra, C., Ward, D. R., Wark, H. M., Watson, N. K., Williams, M. P., Wilson, F. F., Wotton, S. A., Zarebski, K. A., Zonneveld, J. B., (Astro)-Particles Physics, Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Boettcher, Thomas Julian, Craik, Daniel C, Ilten, Philip J, Weisser, Constantin, Williams, Michael |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
S041.198
B physic B+: branching ratio: measured Analytical chemistry 01 natural sciences S041.711 B physics Physics Particles & Fields Settore FIS/04 - Fisica Nucleare e Subnucleare Luminosity High Energy Physics - Experiment Hadron-Hadron scattering (experiments) [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] scattering [p p] B physics Branching fraction Hadron-Hadron scattering (experiments) Rare decay TOOL LHCb - Abteilung Hinton 7000 GeV-cms8000 GeV-cms13000 GeV-cms Physics 02 Physical Sciences Annihilation S041:Desig=711 B+: branching ratio: upper limit Particle physics Nuclear & Particles Physics B+ --> D/s+ Phi(1020) 3. Good health CERN LHC Coll S041.72 Physical Sciences branching ratio: measured [B+] Branching fraction LHC colliding beams [p p] S041:Desig=198 Particle Physics - Experiment Nuclear and High Energy Physics p p: scattering Hadrons B+ --> D/s+ K+ K NO PHYSICS [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex] 0103 physical sciences lcsh:Nuclear and particle physics. Atomic energy. Radioactivity ddc:530 SDG 7 - Affordable and Clean Energy 010306 general physics Large Hadron Collider (France and Switzerland) 01 Mathematical Sciences B+ --> D/s+ anti-D0 Science & Technology hep-ex 010308 nuclear & particles physics branching ratio: upper limit [B+] Gran Col·lisionador d'Hadrons LHC-B HEP Rare decay LHCb B+: hadronic decay lcsh:QC770-798 S041:Desig=72 hadronic decay [B+] Física de partícules Experiments p p: colliding beams statistical Bar (unit) experimental results |
| Zdroj: | Journal of High Energy Physics, 2018(1):131. SPRINGER Journal of high energy physics 1801(01), 131 (2018). doi:10.1007/JHEP01(2018)131 2018, ' First observation of B + → D + s K + K − decays and a search for B + → D + s φ decays ', Journal of High Energy Physics, vol. 2018, no. 1, 131 . https://doi.org/10.1007/JHEP01(2018)131 Dipòsit Digital de la UB Universidad de Barcelona Journal of High Energy Physics Journal of High Energy Physics, 2018, 01, pp.131. ⟨10.1007/JHEP01(2018)131⟩ JHEP JHEP, 2018, 01, pp.131. ⟨10.1007/JHEP01(2018)131⟩ JHEP, 2018, 01, pp.131. 〈10.1007/JHEP01(2018)131〉 Journal of high energy physics : JHEP Journal of High Energy Physics, Vol 2018, Iss 1, Pp 1-22 (2018) Journal of High Energy Physics, 2018(1):131. Springer Verlag The Lhcb Collaboration 2018, ' First observation of B + → D s + K + K − decays and a search for B + → D s + ϕ decays ', Journal of High Energy Physics, vol. 2018, no. 1, 131 . https://doi.org/10.1007/JHEP01(2018)131 Appleby, R, Barter, W, Borghi, S, Burr, C, Capriotti, L, De Capua, S, Gersabeck, E, Gersabeck, M, Lafferty, G, Maguire, K, Mcnab, A, Parkes, C, Sarpis, G & The LHCb Collaboration 2018, ' First observation of B + → Ds + K + K − decays and a search for B + → Ds + ϕ decays ', The Journal of High Energy Physics, vol. 2018, no. 131 . https://doi.org/10.1007/JHEP01(2018)131 JOURNAL OF HIGH ENERGY PHYSICS Clarke, P, Cowan, G, Eisenhardt, S, Gambetta, S, Muheim, F, Needham, M, Playfer, S, Collaboration, LHC & Pappagallo, M 2018, ' First observation of $B^{+} \to D_s^{+}K^{+}K^{-}$ decays and a search for $B^{+} \to D_s^{+}\phi$ decays ', Journal of High Energy Physics, vol. 1801, Aaij:2017vxc, pp. 131 . https://doi.org/10.1007/JHEP01(2018)131 Springer Berlin Heidelberg |
| ISSN: | 1126-6708 1029-8479 |
| DOI: | 10.1007/JHEP01(2018)131 |
| Popis: | A search for $B^{+} \to D_s^{+}K^{+}K^{-}$ decays is performed using $pp$ collision data corresponding to an integrated luminosity of 4.8 fb$^{-1}$, collected at centre-of-mass energies of 7, 8 and 13$\,$TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be \begin{equation*} \mathcal{B}(B^{+} \to D_s^{+}K^{+}K^{-} ) = (7.1 \pm 0.5 \pm 0.6 \pm 0.7) \times 10^{-6}, \end{equation*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode $B^{+} \to D_s^{+} \overline{\kern -0.2em D}^{0}$. A search is also performed for the pure annihilation decay $B^{+} \to D_s^{+}\phi$. No significant signal is observed and a limit of \begin{equation*} \mathcal{B}(B^{+} \to D_s^{+}\phi) < 4.9 \times 10^{-7}~(4.2 \times 10^{-7}) \end{equation*} is set on the branching fraction at 95$\%$ (90$\%$) confidence level. Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2017-032.html |
| Databáze: | OpenAIRE |
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