A study of Λb0 baryon decays to the DpK- final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb-1 collected with the LHCb detector. Two Λb0 decays are considered, Λb0→DpK- with D→K-π+ and D→K+π-, where D represents a superposition of D0 and D¯0 states. The latter process is expected to be suppressed relative to the former, and is observed for the first time. The ratio of branching fractions of the two decays is measured, and the CP asymmetry of the suppressed mode, which is sensitive to the Cabibbo-Kobayashi-Maskawa angle γ, is also reported.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen Gallego, F., Ackernley, T., Adeva, B., et al. (2021). Observation of the suppressed Λb0 →dpK- decay with D →k+π- and measurement of its CP asymmetry. PHYSICAL REVIEW D, 104(11) [10.1103/PhysRevD.104.112008].

Observation of the suppressed Λb0 →dpK- decay with D →k+π- and measurement of its CP asymmetry

Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Shields E. B.;
2021

Abstract

A study of Λb0 baryon decays to the DpK- final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb-1 collected with the LHCb detector. Two Λb0 decays are considered, Λb0→DpK- with D→K-π+ and D→K+π-, where D represents a superposition of D0 and D¯0 states. The latter process is expected to be suppressed relative to the former, and is observed for the first time. The ratio of branching fractions of the two decays is measured, and the CP asymmetry of the suppressed mode, which is sensitive to the Cabibbo-Kobayashi-Maskawa angle γ, is also reported.
Articolo in rivista - Articolo scientifico
B physics; Branching fraction; Flavor physics; Hadron-Hadron scattering (experiments);
English
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen Gallego, F., Ackernley, T., Adeva, B., et al. (2021). Observation of the suppressed Λb0 →dpK- decay with D →k+π- and measurement of its CP asymmetry. PHYSICAL REVIEW D, 104(11) [10.1103/PhysRevD.104.112008].
Aaij, R; Abdelmotteleb, A; Abellan Beteta, C; Abudinen Gallego, F; Ackernley, T; Adeva, B; Adinolfi, M; Afsharnia, H; Agapopoulou, C; Aidala, C; Aiola, S; Ajaltouni, Z; Akar, S; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Aliouche, Z; Alkhazov, G; Alvarez Cartelle, P; Amato, S; Amey, J; Amhis, Y; An, L; Anderlini, L; Andreianov, A; Andreotti, M; Archilli, F; Artamonov, A; Artuso, M; Arzymatov, K; Aslanides, E; Atzeni, M; Audurier, B; Bachmann, S; Bachmayer, M; Back, J; Baladron Rodriguez, P; Balagura, V; Baldini, W; Baptista Leite, J; Barbetti, M; Barlow, R; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Basels, J; Bashir, S; Bassi, G; Batsukh, B; Battig, A; Bay, A; Beck, A; Becker, M; Bedeschi, F; Bediaga, I; Beiter, A; Belavin, V; Belin, S; Bellee, V; Belous, K; Belov, I; Belyaev, I; Bencivenni, G; Ben-Haim, E; Berezhnoy, A; Bernet, R; Berninghoff, D; Bernstein, H; Bertella, C; Bertolin, A; Betancourt, C; Betti, F; Bezshyiko, I; Bhasin, S; Bhom, J; Bian, L; Bieker, M; Bifani, S; Billoir, P; Birch, M; Bishop, F; Bitadze, A; Bizzeti, A; Bjorn, M; Blago, M; Blake, T; Blanc, F; Blusk, S; Bobulska, D; Boelhauve, J; Boente Garcia, O; Boettcher, T; Boldyrev, A; Bondar, A; Bondar, N; Borghi, S; Borisyak, M; Borsato, M; Borsuk, J; Bouchiba, S; Bowcock, T; Boyer, A; Bozzi, C; Bradley, M; Braun, S; Brea Rodriguez, A; Brodski, M; Brodzicka, J; Brossa Gonzalo, A; Brundu, D; Buonaura, A; Buonincontri, L; Burke, A; Burr, C; Bursche, A; Butkevich, A; Butter, J; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Calefice, L; Calero Diaz, L; Cali, S; Calladine, R; Calvi, M; Calvo Gomez, M; Camargo Magalhaes, P; Campana, P; Campoverde Quezada, A; Capelli, S; Capriotti, L; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carli, I; Carniti, P; Carus, L; Carvalho Akiba, K; Casais Vidal, A; Casse, G; Cattaneo, M; Cavallero, G; Celani, S; Cerasoli, J; Cervenkov, D; Chadwick, A; Chapman, M; Charles, M; Charpentier, P; Chatzikonstantinidis, G; Chavez Barajas, C; Chefdeville, M; Chen, C; Chen, S; Chernov, A; Chobanova, V; Cholak, S; Chrzaszcz, M; Chubykin, A; Chulikov, V; Ciambrone, P; Cicala, M; Cid Vidal, X; Ciezarek, G; Clarke, P; Clemencic, M; Cliff, H; Closier, J; Cobbledick, J; Coco, V; Coelho, J; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Congedo, L; Contu, A; Cooke, N; Coombs, G; Corredoira, I; Corti, G; Costa Sobral, C; Couturier, B; Craik, D; Crkovska, J; Cruz Torres, M; Currie, R; Da Silva, C; Dadabaev, S; Dai, L; Dall'Occo, E; Dalseno, J; D'Ambrosio, C; Danilina, A; D'Argent, P; Davies, J; Davis, A; De Aguiar Francisco, O; De Bruyn, K; De Capua, S; De Cian, M; De Miranda, J; De Paula, L; De Serio, M; De Simone, D; De Simone, P; De Vries, J; Dean, C; Decamp, D; Dedu, V; Del Buono, L; Delaney, B; Dembinski, H; Dendek, A; Denysenko, V; Derkach, D; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Cicco, A; Di Nezza, P; Didenko, S; Dieste Maronas, L; Dijkstra, H; Dobishuk, V; Dong, C; Donohoe, A; Dordei, F; Dos Reis, A; Douglas, L; Dovbnya, A; Downes, A; Dudek, M; Dufour, L; Duk, V; Durante, P; Durham, J; Dutta, D; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; Eisenhardt, S; Ek-In, S; Eklund, L; Ely, S; Ene, A; Epple, E; Escher, S; Eschle, J; Esen, S; Evans, T; Falabella, A; Fan, J; Fan, Y; Fang, B; Farry, S; Fazzini, D; Feo, M; Fernandez Prieto, A; Fernez, A; Ferrari, F; Ferreira Lopes, L; Ferreira Rodrigues, F; Ferreres Sole, S; Ferrillo, M; Ferro-Luzzi, M; Filippov, S; Fini, R; Fiorini, M; Firlej, M; Fischer, K; Fitzgerald, D; Fitzpatrick, C; Fiutowski, T; Fkiaras, A; Fleuret, F; Fontana, M; Fontanelli, F; Forty, R; Foulds-Holt, D; Franco Lima, V; Franco Sevilla, M; Frank, M; Franzoso, E; Frau, G; Frei, C; Friday, D; Fu, J; Fuehring, Q; Gabriel, E; Gallas Torreira, A; Galli, D; Gambetta, S; Gan, Y; Gandelman, M; Gandini, P; Gao, Y; Garau, M; Garcia Martin, L; Garcia Moreno, P; Garcia Pardinas, J; Garcia Plana, B; Garcia Rosales, F; Garrido, L; Gaspar, C; Geertsema, R; Gerick, D; Gerken, L; Gersabeck, E; Gersabeck, M; Gershon, T; Gerstel, D; Ghez, P; Giambastiani, L; Gibson, V; Giemza, H; Gilman, A; Giovannetti, M; Gioventu, A; Gironella Gironell, P; Giubega, L; Giugliano, C; Gizdov, K; Gkougkousis, E; Gligorov, V; Gobel, C; Golobardes, E; Golubkov, D; Golutvin, A; Gomes, A; Gomez Fernandez, S; Goncalves Abrantes, F; Goncerz, M; Gong, G; Gorbounov, P; Gorelov, I; Gotti, C; Govorkova, E; Grabowski, J; Grammatico, T; Granado Cardoso, L; Grauges, E; Graverini, E; Graziani, G; Grecu, A; Greeven, L; Grieser, N; Grillo, L; Gromov, S; Gruberg Cazon, B; Gu, C; Guarise, M; Guittiere, M; Gunther, P; Gushchin, E; Guth, A; Guz, Y; Gys, T; Hadavizadeh, T; Haefeli, G; Haen, C; Haimberger, J; Halewood-Leagas, T; Hamilton, P; Hammerich, J; Han, Q; Han, X; Hancock, T; Hansmann-Menzemer, S; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Hecker, M; Heijhoff, K; Heinicke, K; Hennequin, A; Hennessy, K; Henry, L; Heuel, J; Hicheur, A; Hill, D; Hilton, M; Hollitt, S; Hou, R; Hou, Y; Hu, J; Hu, J; Hu, W; Hu, X; Huang, W; Huang, X; Hulsbergen, W; Hunter, R; Hushchyn, M; Hutchcroft, D; Hynds, D; Ibis, P; Idzik, M; Ilin, D; Ilten, P; Inglessi, A; Ishteev, A; Ivshin, K; Jacobsson, R; Jage, H; Jakobsen, S; Jans, E; Jashal, B; Jawahery, A; Jevtic, V; Jiang, F; John, M; Johnson, D; Jones, C; Jones, T; Jost, B; Jurik, N; Kalavan Kadavath, S; Kandybei, S; Kang, Y; Karacson, M; Karpov, M; Keizer, F; Keller, D; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Kholodenko, S; Kirn, T; Kirsebom, V; Kitouni, O; Klaver, S; Kleijne, N; Klimaszewski, K; Kmiec, M; Koliiev, S; Kondybayeva, A; Konoplyannikov, A; Kopciewicz, P; Kopecna, R; Koppenburg, P; Korolev, M; Kostiuk, I; Kot, O; Kotriakhova, S; Kravchenko, P; Kravchuk, L; Krawczyk, R; Kreps, M; Kress, F; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kucharczyk, M; Kudryavtsev, V; Kuindersma, H; Kunde, G; Kvaratskheliya, T; Lacarrere, D; Lafferty, G; Lai, A; Lampis, A; Lancierini, D; Lane, J; Lane, R; Lanfranchi, G; Langenbruch, C; Langer, J; Lantwin, O; Latham, T; Lazzari, F; Le Gac, R; Lee, S; Lefevre, R; Leflat, A; Legotin, S; Leroy, O; Lesiak, T; Leverington, B; Li, H; Li, P; Li, S; Li, Y; Li, Y; Li, Z; Liang, X; Lin, T; Lindner, R; Lisovskyi, V; Litvinov, R; Liu, G; Liu, H; Liu, Q; Liu, S; Lobo Salvia, A; Loi, A; Lomba Castro, J; Longstaff, I; Lopes, J; Lopez Solino, S; Lovell, G; Lu, Y; Lucarelli, C; Lucchesi, D; Luchuk, S; Lucio Martinez, M; Lukashenko, V; Luo, Y; Lupato, A; Luppi, E; Lupton, O; Lusiani, A; Lyu, X; Ma, L; Ma, R; Maccolini, S; Machefert, F; Maciuc, F; Macko, V; Mackowiak, P; Maddrell-Mander, S; Madejczyk, O; Madhan Mohan, L; Maev, O; Maevskiy, A; Maisuzenko, D; Majewski, M; Malczewski, J; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Malygina, H; Manca, G; Mancinelli, G; Manuzzi, D; Marangotto, D; Maratas, J; Marchand, J; Marconi, U; Mariani, S; Marin Benito, C; Marinangeli, M; Marks, J; Marshall, A; Marshall, P; Martelli, G; Martellotti, G; Martinazzoli, L; Martinelli, M; Martinez Santos, D; Martinez Vidal, F; Massafferri, A; Materok, M; Matev, R; Mathad, A; Mathe, Z; Matiunin, V; Matteuzzi, C; Mattioli, K; Mauri, A; Maurice, E; Mauricio, J; Mazurek, M; Mccann, M; Mcconnell, L; Mcgrath, T; Mchugh, N; Mcnab, A; Mcnulty, R; Mead, J; Meadows, B; Meier, G; Meinert, N; Melnychuk, D; Meloni, S; Merk, M; Merli, A; Meyer Garcia, L; Mikhasenko, M; Milanes, D; Millard, E; Milovanovic, M; Minard, M; Minotti, A; Minzoni, L; Mitchell, S; Mitreska, B; Mitzel, D; Modden, A; Mohammed, R; Moise, R; Mokhnenko, S; Mombacher, T; Monroy, I; Monteil, S; Morandin, M; Morello, G; Morello, M; Moron, J; Morris, A; Morris, A; Mountain, R; Mu, H; Muheim, F; Mulder, M; Muller, D; Muller, K; Murphy, C; Murray, D; Muzzetto, P; Naik, P; Nakada, T; Nandakumar, R; Nanut, T; Nasteva, I; Needham, M; Neri, I; Neri, N; Neubert, S; Neufeld, N; Newcombe, R; Nguyen, T; Nguyen-Mau, C; Niel, E; Nieswand, S; Nikitin, N; Nolte, N; Normand, C; Nunez, C; Oblakowska-Mucha, A; Obraztsov, V; Oeser, T; O'Hanlon, D; Okamura, S; Oldeman, R; Oliva, F; Olivares, M; Onderwater, C; O'Neil, R; Otalora Goicochea, J; Ovsiannikova, T; Owen, P; Oyanguren, A; Padeken, K; Pagare, B; Pais, P; Pajero, T; Palano, A; Palutan, M; Pan, Y; Panshin, G; Papanestis, A; Pappagallo, M; Pappalardo, L; Pappenheimer, C; Parker, W; Parkes, C; Passalacqua, B; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pawley, C; Pearce, A; Pellegrino, A; Pepe Altarelli, M; Perazzini, S; Pereima, D; Pereiro Castro, A; Perret, P; Petric, M; Petridis, K; Petrolini, A; Petrov, A; Petrucci, S; Petruzzo, M; Pham, T; Philippov, A; Pica, L; Piccini, M; Pietrzyk, B; Pietrzyk, G; Pili, M; Pinci, D; Pisani, F; Pizzichemi, M; P. K, R; Placinta, V; Plews, J; Plo Casasus, M; Polci, F; Poli Lener, M; Poliakova, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Ponce, S; Popov, D; Popov, S; Poslavskii, S; Prasanth, K; Promberger, L; Prouve, C; Pugatch, V; Puill, V; Pullen, H; Punzi, G; Qi, H; Qian, W; Qin, J; Qin, N; Quagliani, R; Quintana, B; Raab, N; Rabadan Trejo, R; Rachwal, B; Rademacker, J; Rama, M; Ramos Pernas, M; Rangel, M; Ratnikov, F; Raven, G; Reboud, M; Redi, F; Reiss, F; Remon Alepuz, C; Ren, Z; Renaudin, V; Ribatti, R; Ricciardi, S; Rinnert, K; Robbe, P; Robertson, G; Rodrigues, A; Rodrigues, E; Rodriguez Lopez, J; Rodriguez Rodriguez, E; Roehrken, M; Rollings, A; Roloff, P; Romanovskiy, V; Romero Lamas, M; Romero Vidal, A; Roth, J; Rotondo, M; Rudolph, M; Ruf, T; Ruiz Fernandez, R; Ruiz Vidal, J; Ryzhikov, A; Ryzka, J; Saborido Silva, J; Sagidova, N; Sahoo, N; Saitta, B; Salomoni, M; Sanchez Gras, C; Santacesaria, R; Santamarina Rios, C; Santimaria, M; Santovetti, E; Saranin, D; Sarpis, G; Sarpis, M; Sarti, A; Satriano, C; Satta, A; Saur, M; Savrina, D; Sazak, H; Scantlebury Smead, L; Scarabotto, A; Schael, S; Scherl, S; Schiller, M; Schindler, H; Schmelling, M; Schmidt, B; Schmitt, S; Schneider, O; Schopper, A; Schubiger, M; Schulte, S; Schune, M; Schwemmer, R; Sciascia, B; Sellam, S; Semennikov, A; Senghi Soares, M; Sergi, A; Serra, N; Sestini, L; Seuthe, A; Shang, Y; Shangase, D; Shapkin, M; Shchemerov, I; Shchutska, L; Shears, T; Shekhtman, L; Shen, Z; Shevchenko, V; Shields, E; Shimizu, Y; Shmanin, E; Shupperd, J; Siddi, B; Silva Coutinho, R; Simi, G; Simone, S; Sirks, E; Skidmore, N; Skwarnicki, T; Slater, M; Slazyk, I; Smallwood, J; Smeaton, J; Smetkina, A; Smith, E; Smith, M; Snoch, A; Soares, M; Soares Lavra, L; Sokoloff, M; Soler, F; Solovev, A; Solovyev, I; Souza De Almeida, F; Souza De Paula, B; Spaan, B; Spadaro Norella, E; Spradlin, P; Stagni, F; Stahl, M; Stahl, S; Stanislaus, S; Steinkamp, O; Stenyakin, O; Stevens, H; Stone, S; Straticiuc, M; Strekalina, D; Suljik, F; Sun, J; Sun, L; Sun, Y; Svihra, P; Swallow, P; Swientek, K; Szabelski, A; Szumlak, T; Szymanski, M; Taneja, S; Tanner, A; Tat, M; Terentev, A; Teubert, F; Thomas, E; Thompson, D; Thomson, K; Tisserand, V; T'Jampens, S; Tobin, M; Tomassetti, L; Tong, X; Torres Machado, D; Tou, D; Tran, M; Trifonova, E; Trippl, C; Tuci, G; Tully, A; Tuning, N; Ukleja, A; Unverzagt, D; Ursov, E; Usachov, A; Ustyuzhanin, A; Uwer, U; Vagner, A; Vagnoni, V; Valassi, A; Valenti, G; Valls Canudas, N; Van Beuzekom, M; Van Dijk, M; Van Herwijnen, E; Van Hulse, C; Van Veghel, M; Vazquez Gomez, R; Vazquez Regueiro, P; Vazquez Sierra, C; Vecchi, S; Velthuis, J; Veltri, M; Venkateswaran, A; Veronesi, M; Vesterinen, M; Vieira, D; Vieites Diaz, M; Viemann, H; Vilasis-Cardona, X; Vilella Figueras, E; Villa, A; Vincent, P; Volle, F; Vom Bruch, D; Vorobyev, A; Vorobyev, V; Voropaev, N; Vos, K; Waldi, R; Walsh, J; Wang, C; Wang, J; Wang, J; Wang, J; Wang, J; Wang, M; Wang, R; Wang, Y; Wang, Z; Wang, Z; Wang, Z; Ward, J; Watson, N; Weber, S; Websdale, D; Weisser, C; Westhenry, B; White, D; Whitehead, M; Wiederhold, A; Wiedner, D; Wilkinson, G; Wilkinson, M; Williams, I; Williams, M; Williams, M; Wilson, F; Wislicki, W; Witek, M; Witola, L; Wormser, G; Wotton, S; Wu, H; Wyllie, K; Xiang, Z; Xiao, D; Xie, Y; Xu, A; Xu, J; Xu, L; Xu, M; Xu, Q; Xu, Z; Xu, Z; Yang, D; Yang, S; Yang, Y; Yang, Z; Yang, Z; Yao, Y; Yeomans, L; Yin, H; Yu, J; Yuan, X; Yushchenko, O; Zaffaroni, E; Zavertyaev, M; Zdybal, M; Zenaiev, O; Zeng, M; Zhang, D; Zhang, L; Zhang, S; Zhang, S; Zhang, Y; Zhang, Y; Zharkova, A; Zhelezov, A; Zheng, Y; Zhou, T; Zhou, X; Zhou, Y; Zhovkovska, V; Zhu, X; Zhu, X; Zhu, Z; Zhukov, V; Zonneveld, J; Zou, Q; Zucchelli, S; Zuliani, D; Zunica, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/351051
Citazioni
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 1
Social impact