2018DSpace@MIT (Massachusetts Institute of Technology)Open access

Observation of the Decay B[subscript s][superscript 0] → [¯ over D][superscript 0] K[superscript +] K[superscript −]

R. Aaij, B. Adeva, M. Adinolfi, C. A. Aidala, Z. Ajaltouni, S. Akar, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Álvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. Andreotti, J. E. Andrews, R. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, K. Arzymatov, E. Aslanides, M. Atzeni, S. Bachmann, J. J. Back, S. Baker, V. Balagura, W. Baldini, A. Baranov, R. J. Barlow, S. Barsuk, W. Barter, F. Baryshnikov, V. Batozskaya, B. Batsukh, V. Battista, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, A. Beiter, L. J. Bel, N. Beliy, V. Bellee, N. Belloli, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, S. Beranek, A. Berezhnoy, R. Bernet, D. Berninghoff, E. Bertholet, A. Bertolin, C. Betancourt, F. Betti, M. O. Bettler, M. van Beuzekom, Ia. Bezshyiko, S. Bifani, P. Billoir, A. Birnkraut, A. Bizzeti, M. Bjørn, T. Blake, F. Blanc, S. Blusk, D. Bobulska, V. Bocci, O. Boente García, T. Boettcher, A. Bondar, N. Bondar, S. Borghi, M. Borisyak, M. Borsato, F. Bossu, M. Boubdir, T. J. V. Bowcock, C. Bozzi, S. Braun, M. Brodski, J. Brodzicka, D. Brundu, E. Buchanan, A. Buonaura, C. Burr, A. Bursche, J. Buytaert, W. Byczynski, S. Cadeddu, H. Cai, R. Calabrese, R. Calladine, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, D. H. Cámpora Pérez, L. Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, P. Carniti, L. Carson, K. Carvalho Akiba, G. Casse, L. Cassina, M. Cattaneo, G. Cavallero, R. Cenci, D. Chamont, M. G. Chapman, M. Charles, Ph. Charpentier, N. Konstantinidis, M. Chefdeville, V. Chekalina, C. Chen, S. Chen, S.-G. Chitic, V. Chobanova, M. Chrzaszcz, A. Chubykin, P. Ciambrone, X. Cid Vidal, G. Ciezarek, P. E. L. Clarke, M. Clemencic, H. V. Cliff, J. Closier, V. Coco, J. Cogan, E. Cogneras, L. Cojocariu, P. Collins, T. Colombo, A. Comerma-Montells, A. Contu, G. Coombs, S. Coquereau, G. Corti, M. Corvo, C. M. Costa Sobral, B. Couturier, G. A. Cowan, D. C. Craik, A. Crocombe, M. Cruz Torres, R. Currie, C. D’Ambrosio, F. Marinho, C. L. Da Silva, E. Dall’Occo, J. Dalseno, A. Danilina, A. Davis, O. De Aguiar Francisco, K. De Bruyn, S. De Capua, M. De Cian, J. M. De Miranda, L. De Paula, M. De Serio, P. De Simone, C. T. Dean, D. Decamp, L. Del Buono, B. Delaney, H.-P. Dembinski, M. Demmer, A. Dendek, D. Derkach, O. Deschamps, F. Dettori, B. Dey, A. Di Canto, P. Di Nezza, S. Didenko, H. Dijkstra, F. Dordei, M. Dorigo, A. Dosil Suárez, L. Douglas, A. Dovbnya, K. Dreimanis, L. Dufour, G. Dujany, P. Durante, J. M. Durham, D. Dutta, R. Dzhelyadin, M. Dziewiecki, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V. Egorychev, S. Eidelman, S. Eisenhardt, U. Eitschberger, R. Ekelhof, L. Eklund, S. Ely, A. Ene, S. Escher, S. Esen, H. M. Evans, T. Evans, A. Falabella, N. Farley, S. Farry, D. Fazzini, L. Federici, G. Fernandez, P. Fernandez Declara, A. Fernandez Prieto, F. Ferrari, L. Ferreira Lopes, F. Ferreira Rodrigues, M. Ferro-Luzzi, S. Filippov, R. A. Fini, M. Fiorini, M. Firlej, C. Fitzpatrick, T. Fiutowski, F. Fleuret, M. Fontana, F. Fontanelli, R. Forty, V. Franco Lima, M. Frank, C. Frei, J. Fu, W. Funk, C. Färber, M. Féo, E. Gabriel, A. Gallas Torreira, D. Galli, S. Gallorini, S. Gambetta, M. Gandelman, P. Gandini, Y. Gao, L. M. Garcia Martin, B. Garcia Plana, J. García Pardiñas, J. Garra Tico, L. Garrido, D. Gascon, C. Gaspar, L. Gavardi, G. Gazzoni, D. Gerick, E. Gersabeck, M. Gersabeck, T. Gershon, Ph. Ghez, S. Gianì, V. Gibson, O. G. Girard, L. Giubega, K. Gizdov, V. V. Gligorov, D. Golubkov, A. Golutvin, A. Gomes, I. V. Gorelov, C. Gotti, E. Govorkova, J. P. Grabowski, R. Graciani Diaz, Luis Alberto Granado Cardoso, E. Graugés, E. Graverini, G. Graziani, A. Grecu, R. Greim, P. Griffith, L. Grillo, Lorenz Gruber, B. R. Gruberg Cazon, O. Grünberg, C. Gu, E. Gushchin, Yu. Guz, T. Gys, C. Göbel, T. Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, S. C. Haines, B. Hamilton, X. Han, T. H. Hancock, S. Hansmann-Menzemer, N. Harnew, S. T. Harnew, C. Hasse, M. Hatch, J. He, M. Hecker, K. Heinicke, A. Heister, K. Hennessy, L. Henry, E. van Herwijnen, M. Heß, A. Hicheur, D. Hill, M. Hilton, P. H. Hopchev, W. Hu, W. Huang, Z. C. Huard, W. Hulsbergen, T. Humair, M. Hushchyn, D. Hutchcroft, D. Hynds, P. Ibis, M. Idzik, P. Ilten, К. Ившин, R. Jacobsson, J. Jalocha, E. Jans, A. Jawahery, F. Jiang, M. John, D. Johnson, C. R. Jones, C. Joram, B. Jost, N. Jurik, S. Kandybei, M. Karacson, J. M. Kariuki, S. Karodia, N. Kazeev, M. Kecke, F. Keizer, M. Kelsey, M. Kenzie, T. Ketel, E. Khairullin, B. Khanji, C. Khurewathanakul, K. E. Kim, T. Kirn, S. Klaver, K. Klimaszewski, T. Klimkovich, S. Koliiev, M. Kolpin, R. Kopecna, P. Koppenburg, S. Kotriakhova, M. Kozeiha, L. Kravchuk, M. Kreps, F. Kress, P. Krokovny, W. Krupa, W. Krzemien, W. Kucewicz, M. Kucharczyk, V. Kudryavtsev, A. K. Kuonen, T. Kvaratskheliya, D. Lacarrere, G. Lafferty, A. Lai, D. Lancierini, G. Lanfranchi, C. Langenbruch, T. Latham, C. Lazzeroni, R. Le Gac, A. Leflat, J. Lefrançois, R. Lefèvre, F. Lemaitre, O. Leroy, T. Lesiak, B. Leverington, P.-R. Li, T. Li, Z. Li, X. Liang, T. Likhomanenko, R. Lindner, F. Lionetto, V. Lisovskyi, X. Liu, D. Loh, A. Loi, I. Longstaff, J. H. Lopes, D. Lucchesi, M. Lucio Martinez, A. Lupato, E. Luppi, O. Lupton, A. Lusiani, X. Lyu, F. Machefert, F. Maciuc, V. Macko, P. Mackowiak, S. Maddrell-Mander, O. Maev, K. Maguire, D. Maisuzenko, M. W. Majewski, S. Malde, B. Małecki, A. Malinin, T. Maltsev, G. Manca, G. Mancinelli, D. Marangotto, J. Maratas, J. F. Marchand, U. Marconi, C. Marín Benito, M. Marinangeli, P. Marino, J. Marks, G. Martellotti, M. Martin, M. Martinelli, D. Martinez Santos, F. Martínez-Vidal, A. Massafferri, R. Matev, A. Mathad, Z. Mathe, C. Matteuzzi, A. Mauri, E. Maurice, B. Maurin, A. Mazurov, M. McCann, A. McNab, R. McNulty, J. V. Mead, B. Meadows, C. Meaux, F. Meier, N. Meinert, D. Melnychuk, M. Merk, A. Merli, E. Michielin, D. A. Milanes, E. Millard, M.-N. Minard, L. Minzoni, D. S. Mitzel, A. Mogini, J. Molina Rodriguez, T. Mombächer, I. A. Monroy, S. Monteil, M. Morandin, G. Morello, M. J. Morello, O. Morgunova, J. Moron, A. B. Morris, R. Mountain, F. Muheim, M. Mulder, D. Müller, J. Müller, Karsten Müller, V. Müller, P. Naik, T. Nakada, R. Nandakumar, A. Nandi, T. Nanut, I. Nasteva, M. Needham, N. Neri, S. Neubert, N. Neufeld, M. Neuner, T. D. Nguyen, C. Nguyen-Mau, S. Nieswand, R. Niet, N. Nikitin, A. Nogay, D. P. O’Hanlon, A. Obłąkowska-Mucha, V. Obraztsov, S. Ogilvy, R. Oldeman, C. J. G. Onderwater, A. Ossowska, J. M. Otalora Goicochea, P. Owen, A. Oyanguren, P. R. Pais, A. Palano, M. Palutan, G. Panshin, A. Papanestis, M. Pappagallo, L. L. Pappalardo, W. Parker, C. Parkes, G. Passaleva, A. Pastore, M. Patel, C. Patrignani, A. Pearce, A. Pellegrino, G. Penso, M. Pepe Altarelli, S. Perazzini, D. Pereima, P. Perret, L. Pescatore, K. Petridis, A. Petrolini, A. Petrov, M. Petruzzo, B. Pietrzyk, G. Pietrzyk, M. Pikies, D. Pinci, J. Pinzino, F. Pisani, A. Pistone, A. Piucci, V. Placinta, S. Playfer, J. Plews, M. Plo Casasus, F. Polci, M. Poli Lener, A. Poluektov, N. Polukhina, I. Polyakov, E. Polycarpo, G. J. Pomery, S. Ponce, A. Popov, D. Popov, S. Poslavskii, C. Potterat, E. Price, J. Prisciandaro, C. Prouve, V. Pugatch, A. Puig Navarro, H. Pullen, G. Punzi, W. Qian, J. Qin, R. Quagliani, B. Quintana, B. Rachwal, J. H. Rademacker, M. Rama, M. Ramos Pernas, M. S. Rangel, F. Ratnikov, G. Raven, M. Ravonel Salzgeber, M. Reboud, F. Redi, S. Reichert, A. C. dos Reis, F. Reiss, C. Remon Alepuz, Z. Ren, V. Renaudin, S. Ricciardi, S. Richards, K. Rinnert, P. Robbe, A. Robert, A. B. Rodrigues, E. Rodrigues, J. A. Rodriguez Lopez, A. Rogozhnikov, S. Roiser, A. Rollings, V. Romanovskiy, A. Romero Vidal, M. Rotondo, M. S. Rudolph, T. Ruf, J. Ruiz Vidal, J. J. Saborido Silva, N. Sagidova, B. Saitta, V. Salustino Guimaraes, C. Sanchez Gras, C. Sanchez Mayordomo, B. Sanmartin Sedes, R. Santacesaria, C. Santamarina Ríos, M. Santimaria, E. Santovetti, G. Sarpis, A. Sarti, C. Satriano, A. Satta, M. Saur, D. Savrina, S. Schael, M. Schellenberg, M. Schiller, H. Schindler, M. Schmelling, T. Schmelzer, B. Schmidt, O. Schneider, A. Schopper, H. F. Schreiner, M. Schubiger, M. H. Schune, R. Schwemmer, B. Sciascia, A. Sciubba, A. Semennikov, E. S. Sepulveda, A. Sergi, N. Serra, J. Serrano, L. Sestini, P. Seyfert, M. Shapkin, Y. Shcheglov, T. Shears, L. Shekhtman, V. Shevchenko, E. Shmanin, B. G. Siddi, R. Silva Coutinho, L. Silva de Oliveira, G. Simi, S. Simone, N. Skidmore, T. Skwarnicki, E. Smith, I. T. Smith, M. Smith, M. Soares, L. Soares Lavra, M. D. Sokoloff, F. J. P. Soler, L. De Paula, B. Spaan, P. Spradlin, F. Stagni, M. Stahl, S. Stahl, P. Stefko, S. Stefkova, O. Steinkamp, S. Stemmle, O. Stenyakin, M. Stepanova, H. Stevens, S. Stone, B. Storaci, S. Stracka, M. E. Stramaglia, M. Straticiuc, U. Straumann, S. Strokov, J. Sun, L. Sun, K. Swientek, V. Syropoulos, T. Szumlak, M. Szymanski, S. T’Jampens, Z. Tang, A. Tayduganov, T. Tekampe, G. Tellarini, F. Teubert, E. Thomas, J. van Tilburg, M. J. Tilley, V. Tisserand, M. Tobin, S. Tolk, L. Tomassetti, D. Tonelli, D. Y. Tou, R. Tourinho Jadallah Aoude, E. Tournefier, M. Traill, M. T. Tran, A. Trisovic, A. Tsaregorodtsev, A. Tully, N. Tuning, A. Ukleja, A. Usachov, A. Ustyuzhanin, U. Uwer, C. Vacca, A. Vagner, V. Vagnoni, A. Valassi, S. Valat, G. Valenti, R. Vazquez Gomez, P. Vázquez Regueiro, S. Vecchi, M. van Veghel, J. J. Velthuis, M. Veltri, G. Veneziano, A. Venkateswaran, T. A. Verlage, M. Vernet, M. Vesterinen, J. V. Viana Barbosa, D. Vieira, M. Vieites Diaz, H. Viemann, X. Vilasis-Cardona, A. Vitkovskiy, M. Vitti, V. Volkov, A. Vollhardt, B. Voneki, A. Vorobyev, V. Vorobyev, C. Voß, J. A. de Vries, C. Vázquez Sierra, R. Waldi, J. Walsh, J. Wang, M. Wang, Y. Wang, Z. Wang, D. R. Ward, H. M. Wark, N. K. Watson, D. Websdale, A. Weiden, C. Weisser, M. Whitehead, J. Wicht, G. Wilkinson, M. Wilkinson, M. Williams, M. Williams, T. Williams, F. F. Wilson, J. Wimberley, M. Winn, J. Wishahi, W. Wislicki, M. Witek, G. Wormser, S. A. Wotton, K. Wyllie, D. Xiao, Y. Xie, A. Xu, M. Xu, Q. Xu, Z. Xu, Z. Yang, Y. Yao, H. Yin, J. Yu, X. Yuan, O. Yushchenko, K. A. Zarebski, M. Zavertyaev, D. Zhang, L. Zhang, W. C. Zhang, Y. Zhang, A. Zhelezov, Y. Zheng, X. Zhu, V. Zhukov, J. B. Zonneveld, S. Zucchelli

Open full text 0 citations

Abstract

The first observation of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is reported, together with the most precise branching fraction measurement of the mode B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]. The results are obtained from an analysis of pp collision data corresponding to an integrated luminosity of 3.0 fb[superscript -1]. The data were collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The branching fraction of the B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is measured relative to that of the decay B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -] to be B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -])=(6.9 ± 0.4 ± 0.3)%, where the first uncertainty is statistical and the second is systematic. The measured branching fraction of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay mode relative to that of the corresponding B[superscript 0] decay is B(B[subscript s][superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])=(93.0 ± 8.9 ± 6.9)%. Using the known branching fraction of B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript ], the values of B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])=(6.1 ± 0.4 ± 0.3 ± 0.3) × 10[superscript -5] and B(B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]) = (5.7 ± 0.5 ± 0.4 ± 0.5) × 10[superscript -5] are obtained, where the third uncertainties arise from the branching fraction of the decay modes B[superscript 0] →[¯ over D][superscript 0]π[superscript +]π[superscript -] and B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -], respectively.

About this research paper

What this paper is about

The first observation of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is reported, together with the most precise branching fraction measurement of the mode B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]. The results are obtained from an analysis of pp collision data corresponding to an integrated luminosity of 3.0 fb[superscript -1]. The data were collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The branching fraction of the B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is measured relative to that of the decay B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -] to be B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -])=(6.9 ± 0.4 ± 0.3)%, where the first uncertainty is statistical and the second is systematic. The measured branching fraction of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay mode relative to that of the corresponding B[superscript 0] decay is B(B[subscript s][superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])=(93.0 ± 8.9 ± 6.9)%. Using the known branching fraction of B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript ], the values of B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])=(6.1 ± 0.4 ± 0.3 ± 0.3) × 10[superscript -5] and B(B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]) = (5.7 ± 0.5 ± 0.4 ± 0.5) × 10[superscript -5] are obtained, where the third uncertainties arise from the branching fraction of the decay modes B[superscript 0] →[¯ over D][superscript 0]π[superscript +]π[superscript -] and B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -], respectively.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The first observation of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is reported, together with the most precise branching fraction measurement of the mode B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]. The results are obtained from an analysis of pp collision data corresponding to an integrated luminosity of 3.0 fb[superscript -1]. The data were collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The branching fraction of the B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay is measured relative to that of the decay B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -] to be B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript -])=(6.9 ± 0.4 ± 0.3)%, where the first uncertainty is statistical and the second is systematic. The measured branching fraction of the B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -] decay mode relative to that of the corresponding B[superscript 0] decay is B(B[subscript s][superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])/B(B[superscript 0]→[ ¯ over D][superscript 0]K[superscript +]K[superscript -])=(93.0 ± 8.9 ± 6.9)%. Using the known branching fraction of B[superscript 0]→[¯ over D][superscript 0]π[superscript +]π[superscript ], the values of B(B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -])=(6.1 ± 0.4 ± 0.3 ± 0.3) × 10[superscript -5] and B(B[subscript s][superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -]) = (5.7 ± 0.5 ± 0.4 ± 0.5) × 10[superscript -5] are obtained, where the third uncertainties arise from the branching fraction of the decay modes B[superscript 0] →[¯ over D][superscript 0]π[superscript +]π[superscript -] and B[superscript 0]→[¯ over D][superscript 0]K[superscript +]K[superscript -], respectively.

Key concepts: Physics

Related papers

Back to paper searchBrowse research topicsOriginal source
Observation of the Decay B[subscript s][superscript 0] → [¯ over D][superscript 0] K[superscript +] K[superscript −] — Research Paper | ScholarLens