A measurement of CP violation in the decay B+ -> K+pi(0) is reported using data corresponding to an integrated luminosity of 5.4 fb- 1 collected with the LHCb experiment at a center-of-mass energy of root s = 13 TeV. The CP asymmetry is measured to be 0.025 +/- 0.015 +/- 0.006 +/- 0.003, where the uncertainties are statistical, systematic, and due to an external input. This is the most precise measurement of this quantity. It confirms and significantly enhances the observed anomalous difference between the direct CP asymmetries of the B-0 -> K+pi(-) and B+ -> K+pi 0 decays, known as the K pi puzzle.

Aaij, R., Beteta, C.a., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Measurement of CP Violation in the Decay B plus -> K+ pi(0). PHYSICAL REVIEW LETTERS, 126(9) [10.1103/PhysRevLett.126.091802].

Measurement of CP Violation in the Decay B plus -> K+ pi(0)

Adinolfi, M.;Carbone, A.;Carboni, G.;Cattaneo, M.;Chen, S.;D'Ambrosio, C.;De Capua, S.;Ferrari, F.;Fontana, M.;Gao, Y.;Li, Y.;Li, Y.;Mariani, S.;Meloni, S.;Pastore, A.;Petrucci, S.;Santovetti, E.;Vitali, G.;Wang, C.;Wang, J.;Wang, J.;Wang, J.;Wang, J.;Wang, Z.;Zhang, L.;Zhou, Y.;
2021

Abstract

A measurement of CP violation in the decay B+ -> K+pi(0) is reported using data corresponding to an integrated luminosity of 5.4 fb- 1 collected with the LHCb experiment at a center-of-mass energy of root s = 13 TeV. The CP asymmetry is measured to be 0.025 +/- 0.015 +/- 0.006 +/- 0.003, where the uncertainties are statistical, systematic, and due to an external input. This is the most precise measurement of this quantity. It confirms and significantly enhances the observed anomalous difference between the direct CP asymmetries of the B-0 -> K+pi(-) and B+ -> K+pi 0 decays, known as the K pi puzzle.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01
English
Aaij, R., Beteta, C.a., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Measurement of CP Violation in the Decay B plus -> K+ pi(0). PHYSICAL REVIEW LETTERS, 126(9) [10.1103/PhysRevLett.126.091802].
Aaij, R; Beteta, Ca; Ackernley, T; Adeva, B; Adinolfi, M; Afsharnia, H; Aidala, Ca; Aiola, S; Ajaltouni, Z; Akar, S; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Aliouche, Z; Alkhazov, G; Cartelle, Pa; Amato, S; Amhis, Y; An, L; Anderlini, L; Andreianov, A; Andreotti, M; Andrews, Je; Archilli, F; Artamonov, A; Artuso, M; Arzymatov, K; Aslanides, E; Atzeni, M; Audurier, B; Bachmann, S; Bachmayer, M; Back, Jj; Baker, S; Baladron Rodriguez, P; Balagura, V; Baldini, W; Leite, Jb; Barlow, Rj; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Basels, Jm; Bassi, G; Batsukh, B; Battig, A; Bay, 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, Hc; Bertella, C; Bertholet, E; Bertolin, A; Betancourt, C; Betti, F; Bezshyiko, I; Bhasin, S; Bhom, J; Bian, L; Bieker, Ms; Bifani, S; Billoir, P; Birch, M; Bishop, Fcr; Bizzeti, A; Bjorn, M; Blago, Mp; Blake, T; Blanc, F; Blusk, S; Bobulska, D; Boelhauve, Ja; Boente Garcia, O; Boettcher, T; Boldyrev, A; Bondar, A; Bondar, N; Borghi, S; Borisyak, M; Borsato, M; Borsuk, Jt; Bouchiba, Sa; Bowcock, Tj; V, ; Boyer, A; Bozzi, C; Bradley, Mj; Braun, S; Rodriguez, Ab; Brodski, M; Brodzicka, J; Gonzalo, Ab; Brundu, D; Buonaura, A; Burr, C; Bursche, A; Butkevich, A; Butter, Js; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Calefice, L; Diaz, Lc; Cali, S; Calladine, R; Calvi, M; Calvo Gomez, M; Magalhaes, Pc; Camboni, A; Campana, P; Quezada, Afc; Capelli, S; Capriotti, L; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carli, I; Carniti, P; Carus, L; Akiba, Kc; Casais Vidal, A; Casse, G; Cattaneo, M; Cavallero, G; Celani, S; Cerasoli, J; Chadwick, Aj; Chapman, Mg; Charles, M; Charpentier, P; Chatzikonstantinidis, G; Barajas, Cac; Chefdeville, M; Chen, C; Chen, S; Chernov, A; Chitic, S; Chobanova, V; Cholak, S; Chrzaszcz, M; Chubykin, A; Chulikov, V; Ciambrone, P; Cicala, Mf; Cid Vidal, X; Ciezarek, G; Clarke, Pel; Clemencic, M; Cliff, H; V, ; Closier, J; Cobbledick, Jl; Coco, V; Coelho, Jab; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Congedo, L; Contu, A; Cooke, N; Coombs, G; Corti, G; Sobral, Cmc; Couturier, B; Craik, Dc; Crkovska, J; Torres, Mc; Currie, R; Da Silva, Cl; Dall'Occo, E; Dalseno, J; D'Ambrosio, C; Danilina, A; D'Argent, P; Davis, A; Francisco, Oda; De Bruyn, K; De Capua, S; De Cian, M; De Miranda, Jm; De Paula, L; De Serio, M; De Simone, D; De Simone, P; de Vries, Ja; Dean, Ct; Dean, W; Decamp, D; Del Buono, L; Delaney, B; Dembinski, H; Dendek, A; Denysenko, V; Derkach, D; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Nezza, P; Didenko, S; Dieste Maronas, L; Dijkstra, H; Dobishuk, V; Donohoe, Am; Dordei, F; dos Reis, Ac; Douglas, L; Dovbnya, A; Downes, Ag; Dreimanis, K; Dudek, Mw; Dufour, L; Duk, V; Durante, P; Durham, Jm; Dutta, D; Dziewiecki, M; 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; Farley, N; Farry, S; Fazzini, D; Fedin, P; Feo, M; Declara, Pf; Fernandez Prieto, A; Fernandez-tenllado Arribas, Jm; Ferrari, F; Lopes, Lf; Rodrigues, Ff; Sole, Sf; Ferrillo, M; Ferro-Luzzi, M; Filippov, S; Fini, Ra; Fiorini, M; Firlej, M; Fischer, Km; Fitzpatrick, C; Fiutowski, T; Fleuret, F; Fontana, M; Fontanelli, F; Forty, R; Lima, Vf; Sevilla, Mf; Frank, M; Franzoso, E; Frau, G; Frei, C; Friday, Da; Fu, J; Fuehring, Q; Funk, W; Gabriel, E; Gaintseva, T; Gallas Torreira, A; Galli, D; Gambetta, S; Gan, Y; Gandelman, M; Gandini, P; Gao, Y; Garau, M; Martin, Lmg; Garcia Moreno, P; Pardinas, Jg; Garcia Plana, B; Rosales, Fag; Garrido, L; Gaspar, C; Geertsema, Re; Gerick, D; Gerken, Ll; Gersabeck, E; Gersabeck, M; Gershon, T; Gerstel, D; Ghez, P; Gibson, V; Giovannetti, M; Gioventu, A; Gironella Gironell, P; Giubega, L; Giugliano, C; Gizdov, K; Gkougkousis, El; Gligorov, Vv; Gobel, C; Golobardes, E; Golubkov, D; Golutvin, A; Gomes, A; Gomez Fernandez, S; Abrantes, Fg; Goncerz, M; Gong, G; Gorbounov, P; Gorelov, I; V, ; Gotti, C; Govorkova, E; Grabowski, Jp; Graciani Diaz, R; Grammatico, T; Cardoso, Lag; Grauges, E; Graverini, E; Graziani, G; Grecu, A; Greeven, Lm; Griffith, P; Grillo, L; Gromov, S; Cazon, Brg; Gu, C; Guarise, M; Guenther, Pa; Gushchin, E; Guth, A; Guz, Y; Gys, T; Hadavizadeh, T; Haefeli, G; Haen, C; Haimberger, J; Halewood-leagas, T; Hamilton, Pm; Han, Q; Han, X; Hancock, Th; Hansmann-Menzemer, S; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Hecker, M; Heijhoff, K; Heinicke, K; Hennequin, Am; Hennessy, K; Henry, L; Heuel, J; Hicheur, A; Hill, D; Hilton, M; Hollitt, Se; Hu, J; Hu, J; Hu, W; Huang, W; Huang, X; Hulsbergen, W; Hunter, Rj; Hushchyn, M; Hutchcroft, D; Hynds, D; Ibis, P; Idzik, M; Ilin, D; Ilten, P; Inglessi, A; Ishteev, A; Ivshin, K; Jacobsson, R; Jakobsen, S; Jans, E; Jashal, Bk; Jawahery, A; Jevtic, V; Jezabek, M; Jiang, F; John, M; Johnson, D; Jones, Cr; Jones, Tp; Jost, B; Jurik, N; Kandybei, S; Kang, Y; Karacson, M; Karpov, M; Kazeev, N; Keizer, F; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Kholodenko, S; Kim, Ke; Kirn, T; Kirsebom, Vs; Kitouni, O; Klaver, S; Klimaszewski, K; 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, Rd; Kreps, M; Kress, F; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kucewicz, W; Kucharczyk, M; Kudryavtsev, V; Kuindersma, Hs; Kunde, Gj; Kvaratskheliya, T; Lacarrere, D; Lafferty, G; Lai, A; Lampis, A; Lancierini, D; Lane, Jj; Lane, R; Lanfranchi, G; Langenbruch, C; Langer, J; Lantwin, O; Latham, T; Lazzari, F; Le Gac, R; Lee, Sh; Lefevre, R; Leflat, A; Legotin, S; Leroy, O; Lesiak, T; Leverington, B; Li, H; Li, L; Li, P; Li, Y; Li, Y; Li, Z; Liang, X; Lin, T; Lindner, R; Lisovskyi, V; Litvinov, R; Liu, G; Liu, H; Liu, S; Liu, X; Loi, A; Lomba Castro, J; Longstaff, I; Lopes, Jh; Loustau, G; Lovell, Gh; Lu, Y; Lucchesi, D; Luchuk, S; Martinez, Ml; 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; Mohan, Lrm; Maev, O; Maevskiy, A; Maisuzenko, D; Majewski, Mw; Malczewski, Jj; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Malygina, H; Manca, G; Mancinelli, G; Manera Escalero, R; Manuzzi, D; Marangotto, D; Maratas, J; Marchand, Jf; Marconi, U; Mariani, S; Benito, Cm; Marinangeli, M; Marino, P; Marks, J; Marshall, Pj; 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, Kr; Mauri, A; Maurice, E; Mauricio, J; Mazurek, M; Mccann, M; Mcconnell, L; Mcgrath, Th; Mcnab, A; Mcnulty, R; Mead, J; V, ; Meadows, B; Meaux, C; Meier, G; Meinert, N; Melnychuk, D; Meloni, S; Merk, M; Merli, A; Garcia, Lm; Mikhasenko, M; Milanes, Da; Millard, E; Milovanovic, M; Minard, M; Minzoni, L; Mitchell, Se; Mitreska, B; Mitzel, Ds; Modden, A; Mohammed, Ra; Moise, Rd; Mombacher, T; Monroy, Ia; Monteil, S; Morandin, M; Morello, G; Morello, Mj; Moron, J; Morris, Ab; Morris, Ag; Mountain, R; Mu, H; Muheim, F; Mukherjee, M; Mulder, M; Muller, D; Muller, K; Murphy, Ch; 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, Td; Nguyen-Mau, C; Niel, Em; Nieswand, S; Nikitin, N; Nolte, Ns; Nunez, C; Oblakowska-Mucha, A; Obraztsov, V; O'Hanlon, Dp; Oldeman, R; Olivares, Me; Onderwater, Cjg; Ossowska, A; Goicochea, Jmo; Ovsiannikova, T; Owen, P; Oyanguren, A; Pagare, B; Pais, Pr; Pajero, T; Palano, A; Palutan, M; Pan, Y; Panshin, G; Papanestis, A; Pappagallo, M; Pappalardo, Ll; Pappenheimer, C; Parker, W; Parkes, C; Parkinson, Cj; Passalacqua, B; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pawley, Cj; Pearce, A; Pellegrino, A; Altarelli, Mp; Perazzini, S; Pereima, D; Perret, P; Petridis, K; Petrolini, A; Petrov, A; Petrucci, S; Petruzzo, M; Pham, Tth; Philippov, A; Pica, L; Piccini, M; Pietrzyk, B; Pietrzyk, G; Pili, M; Pinci, D; Pisani, F; Piucci, A; Resmi, Pk; Placinta, V; Plews, J; Casasus, Mp; Polci, F; Lener, Mp; Poliakova, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Pomery, Gj; Ponce, S; Popov, D; Popov, S; Poslavskii, S; Prasanth, K; Promberger, L; Prouve, C; Pugatch, V; Pullen, H; Punzi, G; Qian, W; Qin, J; Quagliani, R; Quintana, B; Raab, N; V, ; Trejo, Rir; Rachwal, B; Rademacker, Jh; Rama, M; Pernas, Mr; Rangel, Ms; 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; Robert, A; Robertson, G; Rodrigues, Ab; Rodrigues, E; Rodriguez Lopez, Ja; Rollings, A; Roloff, P; Romanovskiy, V; Romero Lamas, M; Romero Vidal, A; Roth, Jd; Rotondo, M; Rudolph, Ms; Ruf, T; Ruiz Vidal, J; Ryzhikov, A; Ryzka, J; Saborido Silva, Jj; Sagidova, N; Sahoo, N; Saitta, B; Sanchez Gonzalo, D; Gras, Cs; 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; Smead, Lgs; Schael, S; Schellenberg, M; Schiller, M; Schindler, H; Schmelling, M; Schmidt, B; Schneider, O; Schopper, A; Schubiger, M; Schulte, S; Schune, Mh; Schwemmer, R; Sciascia, B; Sciubba, A; Sellam, S; Semennikov, A; Soares, Ms; Sergi, A; Serra, N; Sestini, L; Seuthe, A; Seyfert, P; Shangase, Dm; Shapkin, M; Shchemerov, I; Shchutska, L; Shears, T; Shekhtman, L; Shen, Z; Shevchenko, V; Shields, Eb; Shmanin, E; Shupperd, Jd; Siddi, Bg; Coutinho, Rs; Simi, G; Simone, S; Skiba, I; Skidmore, N; Skwarnicki, T; Slater, Mw; Smallwood, Jc; Smeaton, Jg; Smetkina, A; Smith, E; Smith, M; Snoch, A; Soares, M; Lavra, Ls; Sokoloff, Md; Soler, Fjp; Solovev, A; Solovyev, I; De Almeida, Fls; De Paula, Bs; Spaan, B; Norella, Es; Spradlin, P; Stagni, F; Stahl, M; Stahl, S; Stefko, P; Steinkamp, O; Stemmle, S; Stenyakin, O; Stevens, H; Stone, S; Stramaglia, Me; Straticiuc, M; Strekalina, D; Strokov, S; Suljik, F; Sun, J; Sun, L; Sun, Y; Svihra, P; Swallow, Pn; Swientek, K; Szabelski, A; Szumlak, T; Szymanski, M; Taneja, S; Teubert, F; Thomas, E; Thomson, Ka; Tilley, Mj; Tisserand, V; T'Jampens, S; Tobin, M; Tolk, S; Tomassetti, L; Machado, Dt; Tou, Dy; Traill, M; Tran, Mt; Trifonova, E; Trippl, C; Tuci, G; Tully, A; Tuning, N; Ukleja, A; Unverzagt, Dj; 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, Cb; van Veghel, M; Vazquez Gomez, R; Vazquez Regueiro, P; Sierra, Cv; Vecchi, S; Velthuis, Jj; Veltri, M; Venkateswaran, A; Veronesi, M; Vesterinen, M; Vieira, D; Diaz, Mv; Viemann, H; Vilasis-Cardona, X; Figueras, Ev; Vincent, P; Vitali, G; Vollhardt, A; Vom Bruch, D; Vorobyev, A; Vorobyev, V; Voropaev, N; Waldi, R; Walsh, J; Wang, C; Wang, J; Wang, J; Wang, J; Wang, J; Wang, M; Wang, R; Wang, Y; Wang, Z; Wark, Hm; Watson, Nk; Weber, Sg; Websdale, D; Weisser, C; Westhenry, Bdc; White, Dj; Whitehead, M; Wiedner, D; Wilkinson, G; Wilkinson, M; Williams, I; Williams, M; Williams, Mrj; Wilson, Ff; Wislicki, W; Witek, M; Witola, L; Wormser, G; Wotton, Sa; 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, Le; Yin, H; Yu, J; Yuan, X; Yushchenko, O; Zaffaroni, E; Zarebski, Ka; Zavertyaev, M; Zdybal, M; Zenaiev, O; Zeng, M; Zhang, D; Zhang, L; Zhang, S; Zhang, Y; Zhang, Y; Zhelezov, A; Zheng, Y; Zhou, X; Zhou, Y; Zhu, X; Zhukov, V; Zonneveld, Jb; Zucchelli, S; Zuliani, D; Zunica, G
Articolo su rivista
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/2108/303149
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 3
social impact