Amplitude analysis of the B0 (s)! K0K0 decays and measurement of the branching fraction of the B0! K0K0 decay

Aaij, R; Abellan Beteta, C; Adeva, B; Adinolfi, M; Aidala, Ca; Ajaltouni, Z; Akar, S; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Albero, Aa; Alkhazov, G; Cartelle, Pa; Alves, Aa; J, R; Amato, S; Amhis, Y; An, L; Anderlini, L; Andreassi, G; Andreotti, M; Andrews, Je; Archilli, F; Romeu, Ja; Artamonov, A; Artuso, M; Arzymatov, K; Aslanides, E; Atzeni, M; Audurier, B; Bachmann, S; Back, Jj; Baker, S; Balagura, V; Baldini, W; Baranov, A; Barlow, Rj; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Batozskaya, V; Batsukh, B; Battig, A; Battista, V; Bay, A; Bedeschi, F; Bediaga, I; Beiter, A; Bel, Lj; Belin, S; Beliy, N; Bellee, V; Belloli, N; Belous, K; Belyaev, I; Bencivenni, G; Ben-Haim, E; Benson, S; Beranek, S; Berezhnoy, A; Bernet, R; Berninghoff, D; Bertholet, E; Bertolin, A; Betancourt, C; Betti, F; Bettler, Mo; Bezshyiko, I; Bhasin, S; Bhom, J; Bieker, Ms; Bifani, S; Billoir, P; Birnkraut, A; Bizzeti, A; Bjorn, M; Blago, Mp; Blake, T; Blanc, F; Blusk, S; Bobulska, D; Bocci, V; Garcia, Ob; Boettcher, T; Bondar, A; Bondar, N; Borghi, S; Borisyak, M; Borsato, M; Boubdir, M; Bowcock, Tjv; Bozzi, C; Braun, S; Brodski, M; Brodzicka, J; Brossa Gonzalo, A; Brundu, D; Buchanan, E; Buonaura, A; Burr, C; Bursche, A; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Cali, S; Calladine, R; Calvi, M; Gomez, Mc; Camboni, A; Campana, P; Perez, Dhc; Capriotti, L; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carniti, P; Carvalho Akiba, K; Casse, G; Cattaneo, M; Cavallero, G; Cenci, R; Chapman, Mg; Charles, M; Charpentier, P; Chatzikonstantinidis, G; Chefdeville, M; Chekalina, V; Chen, C; Chen, S; Chitic, S-; Chobanova, V; Chrzaszcz, M; Chubykin, A; Ciambrone, P; Vidal, Xc; Ciezarek, G; Cindolo, F; Clarke, Pel; Clemencic, M; Cliff, Hv; Closier, J; Coco, V; Coelho, Jab; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Comerma-Montells, A; Contu, A; Coombs, G; Coquereau, S; Corti, G; Sobral, Cmc; Couturier, B; Cowan, Ga; Craik, Dc; Crocombe, A; Cruz Torres, M; 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, P; de Vries, Ja; Dean, Ct; Dean, W; Decamp, D; Del Buono, L; Delaney, B; Dembinski, H-; Demmer, M; Dendek, A; Derkach, D; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Canto, A; Di Nezza, P; Didenko, S; Dijkstra, H; Dordei, F; Dorigo, M; dos Reis, Ac; Dosil Suarez, A; Douglas, L; Dovbnya, A; Dreimanis, K; Dufour, L; Dujany, G; Durante, P; Durham, Jm; Dutta, D; Dzhelyadin, R; Dziewiecki, M; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; Eisenhardt, S; Eitschberger, U; Ekelhof, R; Eklund, L; Ely, S; Ene, A; Escher, S; Esen, S; Evans, T; Falabella, A; Faerber, C; Farley, N; Farry, S; Fazzini, D; Feo, M; Fernandez Declara, P; Fernandez Prieto, A; Ferrari, F; Lopes, Lf; Ferreira Rodrigues, F; Ferreres Sole, S; Ferro-Luzzi, M; Filippov, S; Fini, Ra; Fiorini, M; Firlej, M; Fitzpatrick, C; Fiutowski, T; Fleuret, F; Fontana, M; Fontanelli, F; Forty, R; Lima, Vf; Frank, M; Frei, C; Fu, J; Funk, W; Gabriel, E; Torreira, Ag; Galli, D; Gallorini, S; Gambetta, S; Gan, Y; Gandelman, M; Gandini, P; Gao, Y; Martin, Lmg; Garcia Pardinas, J; Plana, Bg; Garra Tico, J; Garrido, L; Gascon, D; Gaspar, C; Gazzoni, G; Gerick, D; Gersabeck, E; Gersabeck, M; Gershon, T; Gerstel, D; Ghez, P; Gibson, V; Girard, Og; Gironell, Pg; Giubega, L; Gizdov, K; Gligorov, Vv; Goebel, C; Golubkov, D; Golutvin, A; Gomes, A; Gorelov, Iv; Gotti, C; Govorkova, E; Grabowski, Jp; Diaz, Rg; Cardoso, Lag; Grauges, E; Graverini, E; Graziani, G; Grecu, A; Greim, R; Griffith, P; Grillo, L; Gruber, L; Cazon, Brg; Gu, C; Gushchin, E; Guth, A; Guz, Y; Gys, T; Hadavizadeh, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Haines, Sc; Hamilton, B; Han, Q; Han, X; Hancock, Th; Hansmann-Menzemer, S; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Hecker, M; Heinicke, K; Heister, A; Hennessy, K; Henry, L; Hess, M; Heuel, J; Hicheur, A; Charman, Rh; Hill, D; Hilton, M; Hopchev, Ph; Hu, J; Hu, W; Huang, W; Huard, Zc; Hulsbergen, W; Humair, T; Hushchyn, M; Hutchcroft, D; Hynds, D; Ibis, P; Idzik, M; Ilten, P; Inglessi, A; Inyakin, A; Ivshin, K; Jacobsson, R; Jakobsen, S; Jalocha, J; Jans, E; Jashal, Bk; Jawahery, A; Jiang, F; John, M; Johnson, D; Jones, Cr; Joram, C; Jost, B; Jurik, N; Kandybei, S; Karacson, M; Kariuki, Jm; Karodia, S; Kazeev, N; Kecke, M; Keizer, F; Kelsey, M; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Khurewathanakul, C; Kim, Ke; Kirn, T; Kirsebom, Vs; Klaver, S; Klimaszewski, K; Koliiev, S; Kolpin, M; Kopecna, R; Koppenburg, P; Kostiuk, I; Kotriakhova, S; Kozeiha, M; Kravchuk, L; Kreps, M; Kress, F; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kucewicz, W; Kucharczyk, M; Kudryavtsev, V; Kunde, Gj; Kuonen, Ak; Kvaratskheliya, T; Lacarrere, D; Lafferty, G; Lai, A; Lancierini, D; Lanfranchi, G; Langenbruch, C; Latham, T; Lazzeroni, C; Le Gac, R; Lefevre, R; Leflat, A; Lemaitre, F; Leroy, O; Lesiak, T; Leverington, B; Li, H; P. -R., L; Li, X; Li, Y; Li, Z; Liang, X; Likhomanenko, T; Lindner, R; Lionetto, F; Lisovskyi, V; Liu, G; Liu, X; Loh, D; Loi, A; Longstaff, I; Lopes, Jh; Loustau, G; Lovell, Gh; Lucchesi, D; Martinez, Ml; Luo, Y; Lupato, A; Luppi, E; Lupton, O; Lusiani, A; Lyu, X; Machefert, F; Maciuc, F; Macko, V; Mackowiak, P; Maddrell-Mander, S; Maev, O; Maguire, K; Maisuzenko, D; Majewski, Mw; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Malygina, H; Manca, G; Mancinelli, G; Marangotto, D; Maratas, J; Marchand, Jf; Marconi, U; Marin Benito, C; Marinangeli, M; Marino, P; Marks, J; Marshall, Pj; Martellotti, G; Martinelli, M; Santos, Dm; Martinez Vidal, F; Massafferri, A; Materok, M; Matev, R; Mathad, A; Mathe, Z; Matiunin, V; Matteuzzi, C; Mattioli, Kr; Mauri, A; Maurice, E; Maurin, B; Mccann, M; Mcnab, A; Mcnulty, R; Mead, Jv; Meadows, B; Meaux, C; Meinert, N; Melnychuk, D; Merk, M; Merli, A; Michielin, E; Milanes, Da; Millard, E; Minard, M-; Minzoni, L; Mitzel, Ds; Moedden, A; Mogini, A; Moise, Rd; Mombaecher, T; Monroy, Ia; Monteil, S; Morandin, M; Morello, G; Morello, Mj; Moron, J; Morris, Ab; Mountain, R; Muheim, F; Mukherjee, M; Mulder, M; Mueller, D; Mueller, J; Mueller, K; Mueller, V; Murphy, Ch; Murray, D; Naik, P; Nakada, T; Nandakumar, R; Nandi, A; Nanut, T; Nasteva, I; Needham, M; Neri, N; Neubert, S; Neufeld, N; Newcombe, R; Nguyen, Td; Nguyen-Mau, C; Nieswand, S; Niet, R; Nikitin, N; Nolte, Ns; Oblakowska-Mucha, A; Obraztsov, V; Ogilvy, S; O'Hanlon, Dp; Oldeman, R; Onderwater, Cjg; Osborn, Jd; Ossowska, A; Otalora Goicochea, Jm; Ovsiannikova, T; Owen, P; Oyanguren, A; Pais, Pr; Pajero, T; Palano, A; Palutan, M; Panshin, G; Papanestis, A; Pappagallo, M; Pappalardo, Ll; Parker, W; Parkes, C; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pearce, A; Pellegrino, A; Penso, G; Altarelli, Mp; Perazzini, S; Pereima, D; Perret, P; Pescatore, L; Petridis, K; Petrolini, A; Petrov, A; Petrucci, S; Petruzzo, M; Pietrzyk, B; Pietrzyk, G; Pikies, M; Pili, M; Pinci, D; Pinzino, J; Pisani, F; Piucci, A; Placinta, V; Playfer, S; Plews, J; Casasus, Mp; Polci, F; Lener, Mp; Poliakova, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Pomery, Gj; Ponce, S; Popov, A; Popov, D; Poslavskii, S; Price, E; Prouve, C; Pugatch, V; Navarro, Ap; Pullen, H; Punzi, G; Qian, W; Qin, J; Quagliani, R; Quintana, B; Raab, Nv; Rachwal, B; Rademacker, Jh; Rama, M; Pernas, Mr; Rangel, Ms; Ratnikov, F; Raven, G; Salzgeber, Mr; Reboud, M; Redi, F; Reichert, S; Reiss, F; Alepuz, Cr; Ren, Z; Renaudin, V; Ricciardi, S; Richards, S; Rinnert, K; Robbe, P; Robert, A; Rodrigues, Ab; Rodrigues, E; Lopez, Jar; Roehrken, M; Roiser, S; Rollings, A; Romanovskiy, V; Romero Vidal, A; Roth, Jd; Rotondo, M; Rudolph, Ms; Ruf, T; Vidal, Jr; Silva, Jjs; Sagidova, N; Saitta, B; Guimaraes, Vs; Gras, Cs; Sanchez Mayordomo, C; Sedes, Bs; Santacesaria, R; Rios, Cs; Santimaria, M; Santovetti, E; Sarpis, G; Sarti, A; Satriano, C; Satta, A; Saur, M; Savrina, D; Schael, S; Schellenberg, M; Schiller, M; Schindler, H; Schmelling, M; Schmelzer, T; Schmidt, B; Schneider, O; Schopper, A; Schreiner, Hf; Schubiger, M; Schulte, S; Schune, Mh; Schwemmer, R; Sciascia, B; Sciubba, A; Semennikov, A; Sepulveda, Es; Sergi, A; Serra, N; Serrano, J; Sestini, L; Seuthe, A; Seyfert, P; Shapkin, M; Shears, T; Shekhtman, L; Shevchenko, V; Shmanin, E; Siddi, Bg; Silva Coutinho, R; Silva de Oliveira, L; Simi, G; Simone, S; Skiba, I; Skidmore, N; Skwarnicki, T; Slater, Mw; Smeaton, Jg; Smith, E; Smith, It; Smith, M; Soares, M; Soares Lavra, L; Sokoloff, Md; Soler, Fjp; Souza De Paula, B; Spaan, B; Spadaro Norella, E; Spradlin, P; Stagni, F; Stahl, M; Stahl, S; Stefko, P; Stefkova, S; Steinkamp, O; Stemmle, S; Stenyakin, O; Stepanova, M; Stevens, H; Stocchi, A; Stone, S; Stracka, S; Stramaglia, Me; Straticiuc, M; Straumann, U; Strokov, S; Sun, J; Sun, L; Sun, Y; Swientek, K; Szabelski, A; Szumlak, T; Szymanski, M; Tang, Z; Tekampe, T; Tellarini, G; Teubert, F; Thomas, E; Tilley, Mj; Tisserand, V; T'Jampens, S; Tobin, M; Tolk, S; Tomassetti, L; Tonelli, D; Tou, Dy; Tourinho Jadallah Aoude, R; Tournefier, E; Traill, M; Tran, Mt; Trisovic, A; Tsaregorodtsev, A; Tuci, G; Tully, A; Tuning, N; Ukleja, A; Usachov, A; Ustyuzhanin, A; Uwer, U; Vagner, A; Vagnoni, V; Valassi, A; Valat, S; Valenti, G; van Beuzekom, M; Van Hecke, H; van Herwijnen, E; Van Hulse, Cb; van Tilburg, J; van Veghel, M; Vasiliev, A; Gomez, Rv; Vazquez Regueiro, P; Sierra, Cv; Vecchi, S; Velthuis, Jj; Veltri, M; Venkateswaran, A; Vernet, M; Veronesi, M; Vesterinen, M; Viana Barbosa, Jv; Vieira, D; Vieites Diaz, M; Viemann, H; Vilasis-Cardona, X; Vitkovskiy, A; Vitti, M; Volkov, V; Vollhardt, A; Vom Bruch, D; Voneki, B; Vorobyev, A; Vorobyev, V; Voropaev, N; Waldi, R; Walsh, J; Wang, J; Wang, M; Wang, Y; Wang, Z; Ward, Dr; Wark, Hm; Watson, Nk; Websdale, D; Weiden, A; Weisser, C; Whitehead, M; Wilkinson, G; Wilkinson, M; Williams, I; Williams, M; Williams, Mrj; Williams, T; Wilson, Ff; Winn, M; Wislicki, W; Witek, M; Wormser, G; Wotton, Sa; Wyllie, K; Xiao, D; Xie, Y; Xing, H; Xu, A; Xu, M; Xu, Q; Xu, Z; Xu, Z; Yang, Z; Yang, Z; Yao, Y; Yeomans, Le; Yin, H; Yu, J; Yuan, X; Yushchenko, O; Zarebski, Ka; Zavertyaev, M; Zeng, M; Zhang, D; Zhang, L; Zhang, Wc; Zhang, Y; Zhelezov, A; Zheng, Y; Zhu, X; Zhukov, V; Zonneveld, Jb; Zucchelli, S

doi:10.1007/JHEP07(2019)032

The B0 K0K0 and B0 s K0K0 decays are studied using proton-proton collision data corresponding to an integrated luminosity of 3 fb. An untagged and timeintegrated amplitude analysis of B0 (s) (K+)(K) decays in two-body invariant mass regions of 150MeV/c2 around the K0 mass is performed. A stronger longitudinal polarisation fraction in the B0 K0K0 decay, fL = 0 : 724 0 : 051 (stat) 0 : 016 (syst), is observed as compared to fL = 0 : 240 0 : 031 (stat) 0 : 025 (syst) in the B0 s K0K0 decay. The ratio of branching fractions of the two decays is measured and used to determine B (B0 K0K0) = (8 : 0 0 : 9 (stat) 0 : 4 (syst)) x 10(-7).

Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C.a., Ajaltouni, Z., et al. (2019). Amplitude analysis of the B0 (s)! K0K0 decays and measurement of the branching fraction of the B0! K0K0 decay. JOURNAL OF HIGH ENERGY PHYSICS(7) [10.1007/JHEP07(2019)032].