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Observation of B[0 over s] → [bar over D][superscript 0]K[0 over S] and Evidence for B[0 over s] → [bar over D][superscript *0]K[0 over S] Decays

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi, A. A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, 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, O. Aquines Gutierrez, F. Archilli, P. d’Argent, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, L. J. Bel, V. Bellée, N. Belloli, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, M.-O. Bettler, M. van Beuzekom, S. Bifani, P. Billoir, T. Bird, A. Birnkraut, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, A. Bondar, W. Bonivento, S. Borghi, M. Borisyak, M. Borsato, T. J. V. Bowcock, E. Bowen, C. Bozzi, S. Braun, M. Britsch, T. Britton, J. Brodzicka, N. H. Brook, E. Buchanan, C. Burr, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez, 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, L. Castillo García, M. Cattaneo, Ch. Cauet, G. Cavallero, R. Cenci, M. Charles, Ph. Charpentier, G. Chatzikonstantinidis, M. Chefdeville, S. Chen, S.-F. Cheung, N. Chiapolini, M. Chrząszcz, X. Cid Vidal, G. Ciezarek, P. E. L. Clarke, M. Clemencic, H. V. Cliff, J. Closier, V. Coco, J. Cogan, E. Cogneras, V. Cogoni, L. Cojocariu, G. Collazuol, Paula Collins, A. Comerma-Montells, A. Contu, A. Cook, M. Coombes, S. Coquereau, G. Corti, M. Corvo, B. Couturier, G. A. Cowan, D. C. Craik, A. Crocombe, M. Cruz Torres, S. Cunliffe, R. Currie, C. D’Ambrosio, E. Dall’Occo, J. Dalseno, P. David, Adam Davis, O. De Aguiar Francisco, K. De Bruyn, S. De Capua, M. De Cian, J. M. De Miranda, L. 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Kandybei, W. Kanso, M. Karacson, T. M. Karbach, S. Karodia, M. Kecke, M. Kelsey, I. R. Kenyon, M. Kenzie, T. Ketel, E. Khairullin, B. Khanji, C. Khurewathanakul, T. Kirn, S. Klaver, K. Klimaszewski, O. Kochebina, M. Kolpin, I. Komarov, R. F. Koopman, P. Koppenburg, M. Kozeiha, L. Kravchuk, K. Kreplin, M. Kreps, P. Krokovny, F. Kruse, W. Krzemień, W. Kucewicz, M. Kucharczyk, V. Kudryavtsev, A. K. Kuonen, K. Kurek, T. Kvaratskheliya, D. Lacarrère, G. Lafferty, A. Lai, D. Lambert, G. Lanfranchi, C. Langenbruch, B. Langhans, T. Latham, C. Lazzeroni, R. Le Gac, J. van Leerdam, J. P. Lees, R. Lefèvre, A. Leflat, J. Lefrançois, E. Lemos Cid, O. Leroy, T. Lesiak, B. Leverington, Y. Li, T. Likhomanenko, M. Liles, R. Lindner, C. Linn, F. Lionetto, B. Liu, X. Liu, D. Loh, I. Longstaff, J. H. Lopes, D. Lucchesi, M. Lucio Martínez, H. Luo, A. Lupato, E. Luppi, O. Lupton, N. Lusardi, A. Lusiani, F. Machefert, F. Maciuc, O. Maev, K. Maguire, S. Malde, A. Malinin, G. Manca, G. Mancinelli, P. 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Abstract

The first observation of the B[0 over s] → [bar over D][superscript 0]K[0 over S] decay mode and evidence for the B[0 over s] → [bar over D][superscript *0]K[0 over S] decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb[superscript -1] collected in pp collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be B(B[0 over s] → [bar over D][superscript 0][bar over K][superscript 0]) = [4.3 ± 0.5(stat) ± 0.3(syst) ± 0.3(frag) ± 0.6(norm)] × 10[superscript -4], B(B[0 over s] → [bar over D][superscript *0][bar over K][superscript 0]) = [2.8 ± 1.0(stat) ± 0.3(syst) ± 0.2(frag) ± 0.4(norm)] × 10[superscript -4],where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio f[subscript s]/f[subscript d] and the branching fraction of B[superscript 0] → [bar over D][superscript 0]K[0 over S], which is used as a calibration channel.

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The first observation of the B[0 over s] → [bar over D][superscript 0]K[0 over S] decay mode and evidence for the B[0 over s] → [bar over D][superscript *0]K[0 over S] decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb[superscript -1] collected in pp collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be B(B[0 over s] → [bar over D][superscript 0][bar over K][superscript 0]) = [4.3 ± 0.5(stat) ± 0.3(syst) ± 0.3(frag) ± 0.6(norm)] × 10[superscript -4], B(B[0 over s] → [bar over D][superscript *0][bar over K][superscript 0]) = [2.8 ± 1.0(stat) ± 0.3(syst) ± 0.2(frag) ± 0.4(norm)] × 10[superscript -4],where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio f[subscript s]/f[subscript d] and the branching fraction of B[superscript 0] → [bar over D][superscript 0]K[0 over S], which is used as a calibration channel.

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Available abstract

The first observation of the B[0 over s] → [bar over D][superscript 0]K[0 over S] decay mode and evidence for the B[0 over s] → [bar over D][superscript *0]K[0 over S] decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb[superscript -1] collected in pp collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be B(B[0 over s] → [bar over D][superscript 0][bar over K][superscript 0]) = [4.3 ± 0.5(stat) ± 0.3(syst) ± 0.3(frag) ± 0.6(norm)] × 10[superscript -4], B(B[0 over s] → [bar over D][superscript *0][bar over K][superscript 0]) = [2.8 ± 1.0(stat) ± 0.3(syst) ± 0.2(frag) ± 0.4(norm)] × 10[superscript -4],where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio f[subscript s]/f[subscript d] and the branching fraction of B[superscript 0] → [bar over D][superscript 0]K[0 over S], which is used as a calibration channel.

Key concepts: Bar (unit), Physics, Particle physics, Meteorology

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Observation of B[0 over s] → [bar over D][superscript 0]K[0 over S] and Evidence for B[0 over s] → [bar over D][superscript *0]K[0 over S] Decays — Research Paper | ScholarLens