Opposite-side flavour tagging of B mesons at the LHCb experiment

Aaij, R.; Beteta, C. Abellán; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Alkhazov, G.; Cartelle, P. Alvarez; Alves, A. A.; Amato, S.; Amhis, Y.; Anderson, J.; Appleby, R. B.; Gutierrez, O. Aquines; Archilli, F.; Arrabito, L.; Артамонов, А.; Artuso, M.; Aslanides, E.; Auriemma, G.; Bachmann, S.; Back, J. J.; Bailey, D.; Balagura, V.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Bates, A.; Bauer, C.; Bauer, Th.; Bay, A.; Bediaga, I.; Belogurov, S.; Belous, K.; Belyaev, I.; Ben-Haim, E.; Benayoun, M.; Bencivenni, G.; Benson, S.; Benton, J.; Bernet, R.; Bettler, M. O.; Beuzekom, M. van; Bień, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjørnstad, P. M.; Blake, T.; Blanc, F.; Blanks, C.; Blouw, J.; Blusk, S.; Bobrov, A.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Bowcock, T. J. V.; Bozzi, C.; Brambach, T.; Brand, J. van den; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brook, N. H.; Brown, H.; Bruyn, K. De; Büchler-Germann, A.; Burducea, I.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Callot, O.; Calvi, M.; Gomez, M. Calvo; Camboni, A.; Campana, P.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carson, L.; Akiba, K. Carvalho; Casse, G.; Cattaneo, M.; Cauet, Ch.; Charles, M.; Charpentier, Ph.; Chiapolini, N.; Ciba, K.; Vidal, X. Cid; Ciezarek, G.; Clarke, P. E. L.; Clemencic, M.; Cliff, H. V.; Closier, J.; Coca, C.; Coco, V.; Cogan, J.; Collins, P.; Comerma-Montells, A.; Constantin, F.; Contu, A.; Cook, A.; Coombes, M.; Corti, G.; Couturier, B.; Cowan, G. A.; Currie, R.; D’Ambrosio, C.; David, P.; Bonis, I. De; Capua, S. De; Cian, M. De; Lorenzi, F. De; Miranda, J. M. De; Paula, L. De; Simone, P. De; Décamp, D.; Deckenhoff, M.; Degaudenzi, H.; Buono, L. Del; Deplano, C.; Деркач, Д.; Deschamps, O.; Dettori, F.; Dickens, J.; Dijkstra, H.; Batista, P. Diniz; Bonal, F. Domingo; Donleavy, S.; Dordei, F.; Suárez, A. Dosil; Dossett, D.; Dovbnya, A.; Dupertuis, F.; Dzhelyadin, R.; Dziurda, A.; Easo, S.; Egede, U.; Egorychev, V.; Eidelman, S.; Eijk, D. van; Eisele, F.; Eisenhardt, S.; Ekelhof, R.; Eklund, L.; Elsässer, Ch.; Elsby, D.; Pereira, D. Esperante; Falabella, A.; Fanchini, E.; Färber, C.; Fardell, G.; Farinelli, C.; Farry, S.; Fave, V.; Albor, V. Fernandez; Ferro‐Luzzi, M.; Filippov, S.; Fitzpatrick, C.; Fontana, M.; Fontanelli, F.; Forty, R.; Francisco, O. De Aguiar; Frank, M.; Frei, C.; Frosini, M.; Furcas, S.; Torreira, A. Gallas; Galli, D.; Gandelman, M.; Gandini, P.; Gao, Y.; Garnier, J. C.; Garofoli, J.; Ticó, J. Garra; Garrido, L.; Gascon, D.; Gaspar, C.; Gauld, R.; Gauvin, N.; Gersabeck, M.; Gershon, T.; Ghez, Ph.; Gibson, V.; Gligorov, V. V.; Göbel, C.; Golubkov, D.; Golutvin, A.; Gomes, A.; Gordon, H. A.; Gándara, M. Grabalosa; Diaz, R. Graciani; Cardoso, L. A. Granado; Graugés, E.; Graziani, G.; Grecu, A.; Greening, E.; Gregson, S.; Gui, B.; Gushchin, E.; Guz, Yu.; Gys, T.; Hadjivasiliou, C.; Haefeli, G.; Haen, C.; Haines, S. C.; Hampson, T.; Hansmann-Menzemer, S.; Harji, R.; Harnew, N.; Harrison, J.; Harrison, P. F.; Hartmann, T.; He, J.; Heijne, V.; Hennessy, K.; Henrard, P.; Morata, J. A. Hernando; Herwijnen, E. van; Hicks, E.; Holubyev, K.; Hopchev, P. H.; Hulsbergen, W.; Hunt, P.; Huse, T.; Huston, R. S.; Hutchcroft, D.; Hynds, D.; Яковенко, В.; Ilten, P.; Imong, J.; Jacobsson, R.; Jaeger, A.; Hussein, M. Jahjah; Jans, E.; Jansen, F.; Jaton, P.; Jean‐Marie, B.; Jing, F.; John, M.; Johnson, D.; Jones, C. R.; Jost, B.; Kaballo, M.; Kandybei, S.; Karacson, M.; Karbach, T. M.; Keaveney, J.; Kenyon, I. R.; Kerzel, U.; Ketel, T.; Keune, A.; Khanji, B.; Kim, Y. M.; Knecht, M.; Koopman, R. 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Martínez; Massafferri, A.; Máthé, Z.; Matteuzzi, C.; Matveev, M.; Maurice, E.; Maynard, B.; Mazurov, A.; McGregor, G.; McNulty, R.; Meissner, M.; Merk, M.; Merkel, J.; Messi, R.; Miglioranzi, S.; Milanes, D. A.; Minard, M.-N.; Rodriguez, J. Molina; Monteil, S.; Moran, D.; Morawski, P.; Mountain, R.; Mous, I.; Muheim, F.; Müller, K.; Mureşan, R.; Muryn, B.; Muster, B.; Musy, M.; Mylroie-Smith, J.; Naik, P.; Nakada, T.; Nandakumar, R.; Nasteva, I.; Nedos, M.; Needham, M.; Neufeld, N.; Nguyen, A. D.; Nguyen-Mau, C.; Nicol, M.; Niess, V.; Nikitin, N.; Nomerotski, A.; Novoselov, A.; Obłąkowska-Mucha, A.; Obraztsov, V.; Oggero, S.; Ogilvy, S.; Okhrimenko, O.; Oldeman, R.; Orlandea, M.; Goicochea, J. M. Otalora; Owen, P.; Pal, K.; Palacios, J.; Palano, A.; Palutan, M.; Panman, J.; Papanestis, A.; Pappagallo, M.; Parkes, C.; Parkinson, C. J.; Passaleva, G.; Patel, G. D.; Patel, M.; Paterson, S. K.; Patrick, G. N.; Patrignani, C.; Pavel-Nicorescu, C.; Álvarez, A. Pazos; Pellegrino, A.; Penso, G.; Altarelli, M. Pepe; Perazzini, S.; Perego, D. L.; Trigo, E. Pérez; Yzquierdo, A. Pérez-Calero; Perret, P.; Perrin-Terrin, M.; Pessina, G.; Petrella, A.; Petrolini, A.; Phan, A.; Olloqui, E. Picatoste; Valls, B. Pie; Pietrzyk, B.; Pilař, T.; Pinci, D.; Plackett, R.; Playfer, S.; Casasús, M. Pló; Polok, G.; Poluektov, A.; Polycarpo, E.; Popov, D.; Popovici, B.; Potterat, C.; Powell, A.; Prisciandaro, J.; Pugatch, V.; Navarro, A. Puig; Qian, W.; Rademacker, J. H.; Rakotomiaramanana, B.; Rangel, M. S.; Raniuk, I.; Raven, G.; Redford, S.; Reid, M. M.; Reis, A. C. dos; Ricciardi, S.; Richards, A.; Rinnert, K.; Romero, D. A. Roa; Robbe, P.; Rodrigues, E.; Rodrigues, F. Ferreira; Pérez, P. Rodríguez; Rogers, G. J.; Roiser, S.; Romanovsky, V.; Roselló, M.; Rouvinet, J.; Ruf, T.; Ruiz, H.; Sabatino, G.; Silva, J. J. Saborido; Sagidova, N.; Sail, P.; Saitta, B.; Salzmann, C.; Sannino, M.; Santacesaria, R.; Ríos, C. Santamarina; Santinelli, R.; Santovetti, E.; Sapunov, M.; Sarti, A.; Satriano, C.; Satta, A.; Savrié, M.; Savrina, D.; Schaack, P.; Schiller, M.; Schleich, S.; Schlupp, M.; Schmelling, M.; Schmidt, B.; Schneider, O.; Schopper, A.; Schune, M. H.; Schwemmer, R.; Sciascia, B.; Sciubba, A.; Seco, M.; Semennikov, A.; Senderowska, K.; Sepp, I.; Serra, N.; Serrano, J.; Seyfert, P.; Shapkin, M.; Shapoval, I.; Shatalov, P.; Shcheglov, Y.; Shears, T.; Shekhtman, L.; Shevchenko, О.; Shevchenko, V.; Shires, A.; Coutinho, R. Silva; Skwarnicki, T.; Smith, N. A.; Smith, E.; Sobczak, K.; Soler, F. J. P.; Solomin, A.; Soomro, F.; Paula, B. Souza De; Spaan, B.; Sparkes, A.; Spradlin, P.; Stagni, F.; Stahl, S.; Steinkamp, O.; Stoica, S.; Stone, S.; Storaci, B.; Straticiuc, M.; Straumann, U.; Subbiah, V. K.; Swientek, S.; Szczekowski, M.; Szczypka, P.; Szumlak, T.; T’Jampens, S.; Teodorescu, E.; Teubert, F.; Thomas, C.; Thomas, E.; Tilburg, J. van; Tisserand, V.; Tobin, M.; Topp-Joergensen, S.; Torr, N.; Tournefier, E.; Tourneur, S.; Tran, M. T.; Tsaregorodtsev, A.; Tuning, N.; Garcia, M. Ubeda; Ukleja, A.; Urquijo, P.; Uwer, U.; Vagnoni, V.; Valenti, G.; Gomez, R. Vazquez; Regueiro, P. Vázquez; Vecchi, S.; Velthuis, J. J.; Veltri, M.; Viaud, B.; Videau, I.; Vieira, D.; Vilasís-Cardona, X.; Višniakov, J.; Vollhardt, A.; Volyanskyy, D.; Voong, D.; Vorobyev, A.; Voss, H.; Wandernoth, S.; Wang, J.; Ward, D. R.; Watson, N. K.; Webber, A. D.; Websdale, D.; Whitehead, M.; Wiedner, D.; Wiggers, L.; Wilkinson, G.; Williams, M.; Williams, M. P.; Wilson, F. F.; Wishahi, J.; Witek, M.; Witzeling, W.; Wotton, S. A.; Wyllie, K.; Xie, Y.; Xing, F.; Xing, Z.; Yang, Z.; Young, R.; Yushchenko, O.; Zangoli, M.; Zavertyaev, M.; Zhang, F.; Zhang, L.; Zhang, W. C.; Zhang, Y.; Zhelezov, A.; Zhong, L.; Zvyagin, A.

doi:10.1140/epjc/s10052-012-2022-1

Cited by 164 publications

(230 citation statements)

References 7 publications

Supporting

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212

Contrasting

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“…The OS taggers [45] exploit the fact that in p p collisions beauty quarks are almost exclusively produced in bb pairs. Hence the flavor of the decaying signal B 0 ðsÞ meson can be determined by looking at the charge of the lepton, either muon or electron, originating from semileptonic decays, and of the kaon from the b → c → s decay transition of the other b hadron in the event.…”

Section: Flavor Taggingmentioning

confidence: 99%

Measurement of CP asymmetries in two-body B(s)0 -meson decays to charged p

Aaij¹,

Adeva²,

Adinolfi³

et al. 2018

Phys. Rev. D

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Section: Flavor Taggingmentioning

confidence: 99%

Measurement of CP asymmetries in two-body B(s)0 -meson decays to charged p

Aaij¹,

Adeva²,

Adinolfi³

et al. 2018

Phys. Rev. D

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“…The decay width difference between the light and heavy B 0 s mass eigenstates (∆Γ s ), the average decay width (Γ s ) and the B 0 s oscillation frequency (∆m s ), are gaussian-constrained to the values measured by LHCb [7,8], taking into account the correlations. Opposite-side and Same-side Kaon flavour tagging algorithms were used [9,10]. The total tagging power is determined from data to be (3.29 ± 0.48)% [11].…”

Section: The Bmentioning

confidence: 99%

Charmless B \rightarrow VV decays at LHCb

Cartelle¹

2013

Proceedings of 14th International Conference on B-Physics at Hadron Machines — PoS(Beauty 2013)

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s meson decays into non-charmonium vector pairs are of particular interest to search for indirect CP violation. The analyses of two specific decays are presented here, B 0 s → φ φ and B 0 s → K * 0 K * 0 . These studies have been performed using, respectively, 1 f b −1 and 35pb −1 of data collected by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. In B 0 s → φ φ decay, the CP-violating phase arising in the interference between B 0 s -B 0 s mixing and the b → sss penguin decay has been determined to be in the interval [−2.46, −0.76] rad at 68% confidence level. The first observation of B 0 s → K * 0 K * 0 decay is also reported. The branching fraction and the CP-averaged K * 0 longitudinal polarization fraction are measured to be B(B 0 s → K * 0 K * 0 ) = (2.81 ± 0.46(stat.) ± 0.45(syst.) ± 0.34( f s / f d ))×10 −5 and f L = 0.31 ± 0.12(stat.) ± 0.04(syst.).

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Section: The Lhcb Detectormentioning

confidence: 99%

“…Key ingredients for the analyses presented in the following are the ability to trigger on and to disentangle different modes owing to dedicated ring-imaging Cherenkov detectors. Some channels of interest additionally require good tagging capabilities and excellent proper time resolution, that are detailed elsewhere [6].The data sample used for the analyses presented here ranges from 36 pb −1 to 0.4 fb −1 . Three different categories of analyses are distinguished with respect to the studied final states.…”

mentioning

confidence: 99%

Untitled

Martens

2012

Acta Phys. Pol. B

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PACS numbers: 13.25. Hw, 14.40.Nd, 12.15.Hh, 12.38.Qk, 11.30.Er The LHCb detectorThe LHCb detector [1] is a single arm spectrometer designed to accurately measure decay products of B and D mesons for precision measurements at the LHC. In the following an overview of the variety of CP violation measurements in B decays provided by LHCb at the very beginning of 2012 is presented. Results not related to CP violation in the B decays can be found in other contributions [2,3,4]. The commissioning of the detector and the performance reached with the current data is summarized in [5]. Key ingredients for the analyses presented in the following are the ability to trigger on and to disentangle different modes owing to dedicated ring-imaging Cherenkov detectors. Some channels of interest additionally require good tagging capabilities and excellent proper time resolution, that are detailed elsewhere [6].The data sample used for the analyses presented here ranges from 36 pb −1 to 0.4 fb −1 . Three different categories of analyses are distinguished with respect to the studied final states. Results from B decays to open charm * Presented at Epiphany Conference 2012(1) 2 martens printed on March 28, 2012 are first detailed, followed by charmless B decays and finally B decays to charmonium. B decays to open charm General strategyB decays to open charm final states allow a theoretically clean extraction of the Cabibbo-Kobayashi-Maskawa (CKM) angle γ = φ 3 , see for instance [7] for a recent review. At present this angle is constrained with a combined precision of 10 • by direct measurements while the standard model prediction is accurate at few degrees [8,9].The strategy is to exploit the γ-sensitive interference between b → u and b → c transitions that occur in the B → DX tree level decays 1 . Since there is no contribution from penguin diagrams, these measurements provide a standard model benchmark for further comparison with global CKM fits.Two classes of such B decays can be distinguished depending on the need or not for a time dependent analysis. Self-tagged decays like B ± → DK ± or B 0 → DK * 0 , where the flavour of the final state K ± or K * 0 determines the flavour of the B, allow time independent extractions of γ while B 0 Evidence forOne of the most promising channels is B ± → DK ± , where the D can be reconstructed in many different decay modes, common to the D 0 and the D 0 . As shown on Fig. 1, clear signals of 147 ± 15 and 48 ± 11 candidates are respectively obtained for the suppressed B ± → (K ∓ π ± ) D π ± and B ± → (K ∓ π ± ) D K ± modes with 340 pb −1 . These yields are simultaneously fitted together with the favoured modes to extract CP -violating observables [10]:where R ADS and A ADS are respectively defined, in the case of B ± → DK ± , as:martens printed on March 28, 2012 This result is not only in good agreement but also compete with previous measurements performed at B factories, as summarized for instance in [11]. Including systematic uncertainties, a 4σ evidence of a non vanishing R B ± →DK ± ADS i...

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Opposite-side flavour tagging of B mesons at the LHCb experiment

Cited by 164 publications

References 7 publications

Measurement of CP asymmetries in two-body B(s)0 -meson decays to charged p

Measurement of CP asymmetries in two-body B(s)0 -meson decays to charged p

Charmless B \rightarrow VV decays at LHCb

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