A simultaneous analysis of the B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed to test muon-electron universality in two ranges of the square of the dilepton invariant mass, q2. The measurement uses a sample of beauty meson decays produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb-1. A sequence of multivariate selections and strict particle identification requirements produce a higher signal purity and a better statistical sensitivity per unit luminosity than previous LHCb lepton universality tests using the same decay modes. Residual backgrounds due to misidentified hadronic decays are studied using data and included in the fit model. Each of the four lepton universality measurements reported is either the first in the given q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model. © 2023 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of lepton universality parameters in B+ →k+ℓ+ℓ- and B0 →k∗0ℓ+ℓ- decays. PHYSICAL REVIEW D, 108(3) [10.1103/PhysRevD.108.032002].

Measurement of lepton universality parameters in B+ →k+ℓ+ℓ- and B0 →k∗0ℓ+ℓ- decays

Archilli, F.;Santovetti, E.;
2023-08-01

Abstract

A simultaneous analysis of the B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed to test muon-electron universality in two ranges of the square of the dilepton invariant mass, q2. The measurement uses a sample of beauty meson decays produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb-1. A sequence of multivariate selections and strict particle identification requirements produce a higher signal purity and a better statistical sensitivity per unit luminosity than previous LHCb lepton universality tests using the same decay modes. Residual backgrounds due to misidentified hadronic decays are studied using data and included in the fit model. Each of the four lepton universality measurements reported is either the first in the given q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model. © 2023 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
1-ago-2023
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01
English
Con Impact Factor ISI
Hadron colliders; Bottom mesons; Electrons; Muons; Flavor changing neutral currents; Rare decays
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85171865983&doi=10.1103/PhysRevD.108.032002&partnerID=40&md5=ad50806c95feaab539a4229ad410fd2d
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of lepton universality parameters in B+ →k+ℓ+ℓ- and B0 →k∗0ℓ+ℓ- decays. PHYSICAL REVIEW D, 108(3) [10.1103/PhysRevD.108.032002].
Aaij, R; Abdelmotteleb, Asw; Abellan Beteta, C; Abudinén, F; Ackernley, T; Adeva, B; Adinolfi, M; Adlarson, P; Afsharnia, H; Agapopoulou, C; Aidala, Ca; Ajaltouni, Z; Akar, S; Akiba, K; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Aliouche, Z; Alvarez Cartelle, P; Amalric, R; Amato, S; Amey, Jl; Amhis, Y; An, L; Anderlini, L; Andersson, M; Andreianov, A; Andreotti, M; Andreou, D; Ao, D; Archilli, F; Artamonov, A; Artuso, M; Aslanides, E; Atzeni, M; Audurier, B; Bachiller Perea, Ib; Bachmann, S; Bachmayer, M; Back, Jj; Bailly-Reyre, A; Baladron Rodriguez, P; Balagura, V; Baldini, W; Baptista De Souza Leite, J; Barbetti, M; Barlow, Rj; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Basels, Jm; Bassi, G; Batsukh, B; Battig, A; Bay, A; Beck, A; Becker, M; Bedeschi, F; Bediaga, Ib; Beiter, A; Belin, S; Bellee, V; Belous, K; Belov, I; Belyaev, I; Benane, G; Bencivenni, G; Ben-Haim, E; Berezhnoy, A; Bernet, R; Bernet Andres, S; Berninghoff, D; Bernstein, Hc; Bertella, C; Bertolin, A; Betancourt, C; Betti, F; Bezshyiko, I; Bhom, J; Bian, L; Bieker, Ms; Biesuz, Nv; Bifani, S; Billoir, P; Biolchini, A; Birch, M; Bishop, Fcr; Bitadze, A; Bizzeti, A; Blago, Mp; Blake, T; Blanc, F; Blank, Je; Blusk, S; Bobulska, D; Boelhauve, Ja; Boente Garcia, O; Boettcher, T; Boldyrev, A; Bolognani, Cs; Bolzonella, R; Bondar, N; Borgato, F; Borghi, S; Borsato, M; Borsuk, Jt; Bouchiba, Sa; Bowcock, Tjv; Boyer, A; Bozzi, C; Bradley, Mj; Braun, S; Brea Rodriguez, A; Brodzicka, J; Brossa Gonzalo, A; Brown, J; Brundu, D; Buonaura, A; Buonincontri, L; Burke, At; Burr, C; Bursche, A; Butkevich, A; Butter, Js; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Calefice, L; Cali, S; Calladine, R; Calvi, M; Calvo Gomez, M; Campana, P; Campora Perez, Dh; Campoverde Quezada, Af; Capelli, S; Capriotti, L; Carbone, A; Cardinale, R; Cardini, A; Carniti, P; Carus, L; Casais Vidal, A; Caspary, R; Casse, G; Cattaneo, M; Cavallero, G; Cavallini, V; Celani, S; Cerasoli, J; Cervenkov, D; Chadwick, Aj; Chahrour, I; Chapman, Mg; Charles, M; Charpentier, P; Chavez Barajas, Ca; Chefdeville, M; Chen, C; Chen, S; Chernov, A; Chernyshenko, S; Chobanova, V; Cholak, S; Chrzaszcz, M; Chubykin, A; Chulikov, V; Ciambrone, P; Cicala, Mf; Cid Vidal, X; Ciezarek, G; Cifra, P; Ciullo, G; Clarke, Pel; Clemencic, M; Cliff, Hv; Closier, J; Cobbledick, Jl; Coco, V; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Congedo, L; Contu, A; Cooke, N; Corredoira, I; Corti, G; Couturier, B; Craik, Dc; Cruz Torres, M; Currie, R; Da Silva, Cl; Dadabaev, S; Dai, L; Dai, X; Dall'Occo, E; Dalseno, J; D'Ambrosio, C; Daniel, J; Danilina, A; D'Argent, P; Davies, Je; Davis, A; De Aguiar Francisco, O; De Boer, J; De Bruyn, K; De Capua, S; De Cian, M; De Freitas Carneiro Da Graca, U; De Lucia, E; De Miranda, Jm; De Paula, L; De Serio, M; De Simone, D; De Simone, P; De Vellis, F; De Vries, Ja; Dean, Ct; Debernardis, F; Decamp, D; Dedu, V; Del Buono, L; Delaney, B; Dembinski, H-; Denysenko, V; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Nezza, P; Diachkov, I; Didenko, S; Dieste Maronas, L; Ding, S; Dobishuk, V; Dolmatov, A; Dong, C; Donohoe, Am; Dordei, F; Dos Reis, Ac; Douglas, L; Downes, Ag; Duda, P; Dudek, Mw; Dufour, L; Duk, V; Durante, P; Duras, Mm; Durham, Jm; Dutta, D; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eirea Orro, C; Eisenhardt, S; Ejopu, E; Ek-In, S; Eklund, L; Elashri, Me; Ellbracht, J; Ely, S; Ene, A; Epple, E; Escher, S; Eschle, J; Esen, S; Evans, T; Fabiano, F; Falcao, Ln; Fan, Y; Fang, B; Fantini, L; Faria, M; Farry, S; Fazzini, D; Felkowski, Lf; Feo, M; Fernandez Gomez, M; Fernez, Ad; Ferrari, F; Ferreira Lopes, L; Ferreira Rodrigues, F; Ferreres Sole, S; Ferrillo, M; Ferro-Luzzi, M; Filippov, S; Fini, Ra; Fiorini, M; Firlej, M; Fischer, Km; Fitzgerald, Ds; Fitzpatrick, C; Fiutowski, T; 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, Da; Frontini, L; Fu, J; Fuehring, Q; Fulghesu, T; Gabriel, E; Galati, G; Galati, Md; Gallas Torreira, A; Galli, D; Gambetta, S; Gandelman, M; Gandini, P; Gao, Hg; Gao, Y; Gao, Y; Garau, M; Garcia Martin, Lm; Garcia Moreno, P; García Pardiñas, J; Garcia Plana, B; Garcia Rosales, Fa; Garrido, L; Gaspar, C; Geertsema, Re; Gerick, D; Gerken, Ll; Gersabeck, E; Gersabeck, M; Gershon, T; Giambastiani, L; Gibson, V; Giemza, Hk; Gilman, Al; Giovannetti, M; Gioventù, A; Gironella Gironell, P; Giugliano, C; Giza, Ma; Gizdov, K; Gkougkousis, El; Gligorov, Vv; Göbel, C; Golobardes, E; Golubkov, D; Golutvin, A; Gomes, A; Gomez Fernandez, S; Goncalves Abrantes, F; Goncerz, M; Gong, G; Gorelov, Iv; Gotti, C; Grabowski, Jp; Grammatico, T; Granado Cardoso, La; Graugés, E; Graverini, E; Graziani, G; Grecu, At; Greeven, Lm; Grieser, Na; Grillo, L; Gromov, S; Gruberg Cazon, Br; Gu, C; Guarise, M; Guittiere, M; Günther, Pa; Gushchin, E; Guth, A; Guz, Y; Gys, T; Hadavizadeh, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Haimberger, J; Haines, Sc; Halewood-Leagas, T; Halvorsen, Mm; Hamilton, Pm; Hammerich, J; Han, Q; Han, X; Hansmann-Menzemer, S; Hao, L; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Heijhoff, K; Hemmer, Fh; Henderson, C; Henderson, Rdl; Hennequin, Am; Hennessy, K; Henry, L; Herd, J; Heuel, J; Hicheur, A; Hill, D; Hilton, M; Hollitt, Se; Horswill, J; Hou, R; Hou, Y; Hu, J; Hu, J; Hu, W; Hu, X; Huang, W; Huang, X; Hulsbergen, W; Hunter, Rj; Hushchyn, M; Hutchcroft, D; Ibis, P; Idzik, M; Ilin, D; Ilten, P; Inglessi, A; Iniukhin, A; Ishteev, A; Ivshin, K; Jacobsson, R; Jage, H; Jaimes Elles, Sj; Jakobsen, S; Jans, E; Jashal, Bk; Jawahery, A; Jevtic, V; Jiang, E; Jiang, X; Jiang, Y; John, M; Johnson, D; Jones, Cr; Jones, Tp; Joshi, Sj; Jost, B; Jurik, N; Juszczak, I; Kandybei, S; Kang, Y; Karacson, M; Karpenkov, D; Karpov, M; Kautz, Jw; Keizer, F; Keller, Dm; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Kholodenko, S; Khreich, G; Kirn, T; Kirsebom, Vs; Kitouni, O; Klaver, S; Kleijne, N; Klimaszewski, K; Kmiec, Mr; Koliiev, S; Kolk, L; Kondybayeva, A; Konoplyannikov, A; Kopciewicz, P; Kopecna, R; Koppenburg, P; Korolev, M; Kostiuk, I; Kot, O; Kotriakhova, S; Kozachuk, A; Kravchenko, P; Kravchuk, L; Krawczyk, Rd; Kreps, M; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kubat, J; Kubis, S; Kucewicz, W; Kucharczyk, M; Kudryavtsev, V; Kulikova, Ek; Kupsc, A; Lacarrere, D; Lafferty, G; Lai, A; Lampis, A; Lancierini, D; Landesa Gomez, C; Lane, Jj; Lane, R; Langenbruch, C; Langer, J; Lantwin, O; Latham, T; Lazzari, F; Lazzaroni, M; Lazzeroni, C; Le Gac, R; Lee, Sh; Lefèvre, R; Leflat, A; Legotin, S; Lemettais, C; Lenisa, P; Leroy, O; Lesiak, T; Leverington, B; Li, A; Li, H; Li, K; Li, P; Li, P-; Li, S; Li, T; Li, T; Li, Y; Li, Z; Liang, X; Lin, C; Lin, T; Lindner, R; Lisovskyi, V; Litvinov, R; Liu, G; Liu, H; Liu, K; Liu, Q; Liu, S; Lobo Salvia, A; Loi, A; Lollini, R; Lomba Castro, J; Longstaff, I; Lopes, Jh; Lopez Huertas, A; López Soliño, S; Lovell, Gh; Lu, Y; Lucarelli, C; Lucchesi, D; Luchuk, S; Lucio Martinez, M; Lukashenko, V; Luo, Y; Lupato, A; Luppi, E; Lusiani, A; Lynch, K; Lyu, X-; Ma, R; Maccolini, S; Machefert, F; Maciuc, F; Mackay, I; Macko, V; Madhan Mohan, Lr; Maevskiy, A; Maisuzenko, D; Majewski, Mw; Malczewski, Jj; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Manca, G; Mancinelli, G; Mancuso, C; Manera Escalero, R; Manuzzi, D; Manzari, Ca; Marangotto, D; Marchand, Jf; Marconi, U; Mariani, S; Marin Benito, C; Marks, J; Marshall, Am; Marshall, Pj; Martelli, G; Martellotti, G; Martinazzoli, L; Martinelli, M; Martinez Santos, D; Martinez Vidal, F; Massafferri, A; Materok, M; Matev, R; Mathad, A; Matiunin, V; Matteuzzi, C; Mattioli, Kr; Mauri, A; Maurice, E; Mauricio, J; Mazurek, M; Mccann, M; Mcconnell, L; Mcgrath, Th; Mchugh, Nt; Mcnab, A; Mcnulty, R; Meadows, B; Meier, G; Melnychuk, D; Meloni, S; Merk, M; Merli, A; Meyer Garcia, L; Miao, D; Mikhasenko, M; Milanes, Da; Millard, E; Milovanovic, M; Minard, M-; Minotti, A; Miralles, T; Mitchell, Se; Mitreska, B; Mitzel, Ds; Modak, A; Mödden, A; Mohammed, Ra; Moise, Rd; Mokhnenko, S; Mombächer, T; Monk, M; Monroy, Ia; Monteil, S; Morello, G; Morello, Mj; Morgenthaler, Mp; Moron, J; Morris, Ab; Morris, Ag; Mountain, R; Mu, H; Muhammad, E; Muheim, F; Mulder, M; Müller, K; Murphy, Ch; Murray, D; Murta, R; Muzzetto, P; Naik, P; Nakada, T; Nandakumar, R; Nanut, T; Nasteva, I; Needham, M; Neri, N; Neubert, S; Neufeld, N; Neustroev, P; Newcombe, R; Nicolini, J; Nicotra, D; Niel, Em; Nieswand, S; Nikitin, N; Nolte, Ns; Normand, C; Novoa Fernandez, J; Nowak, Gn; Nunez, C; Oblakowska-Mucha, A; Obraztsov, V; Oeser, T; Okamura, S; Oldeman, R; Oliva, F; Onderwater, Cjg; O'Neil, Rh; Otalora Goicochea, Jm; Ovsiannikova, T; Owen, P; Oyanguren, A; Ozcelik, O; Padeken, Ko; Pagare, B; Pais, Pr; Pajero, T; Palano, A; Palutan, M; Panshin, G; Paolucci, L; Papanestis, A; Pappagallo, M; Pappalardo, Ll; Pappenheimer, C; Parker, W; Parkes, C; Passalacqua, B; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pawley, Cj; Pellegrino, A; Pepe Altarelli, M; Perazzini, S; Pereima, D; Pereiro Castro, A; Perret, P; Petridis, K; Petrolini, A; Petrucci, S; Petruzzo, M; Pham, H; Philippov, A; Piandani, R; Pica, L; Piccini, M; Pietrzyk, B; Pietrzyk, G; Pili, M; Pinci, D; Pisani, F; Pizzichemi, M; Placinta, V; Plews, J; Plo Casasus, M; Polci, F; Poli Lener, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Ponce, S; Popov, D; Poslavskii, S; Prasanth, K; Promberger, L; Prouve, C; Pugatch, V; Puill, V; Punzi, G; Qi, Hr; Qian, W; Qin, N; Qu, S; Quagliani, R; Raab, Nv; Rachwal, B; Rademacker, Jh; Rajagopalan, R; Rama, M; Ramos Pernas, M; Rangel, Ms; Ratnikov, F; Raven, G; Rebollo De Miguel, M; Redi, F; Reich, J; Reiss, F; Remon Alepuz, C; Ren, Z; Resmi, Pk; Ribatti, R; Ricci, Am; Ricciardi, S; Richardson, K; Richardson-Slipper, M; Rinnert, K; Robbe, P; Robertson, G; Rodrigues, E; Rodriguez Fernandez, E; Rodriguez Lopez, Ja; Rodriguez Rodriguez, E; Rolf, Dl; Rollings, A; Roloff, P; Romanovskiy, V; Romero Lamas, M; Romero Vidal, A; Roth, Jd; Rotondo, M; Rudolph, Ms; Ruf, T; Ruiz Fernandez, Ra; Ruiz Vidal, J; Ryzhikov, A; Ryzka, J; Saborido Silva, Jj; Sagidova, N; Sahoo, N; Saitta, B; Salomoni, M; Sanchez Gras, C; Sanderswood, I; 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, Lg; 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, Mh; Schwemmer, R; Sciascia, B; Sciuccati, A; Sellam, S; Semennikov, A; Senghi Soares, M; Sergi, A; Serra, N; Sestini, L; Seuthe, A; Shang, Y; Shangase, Dm; Shapkin, M; Shchemerov, I; Shchutska, L; Shears, T; Shekhtman, L; Shen, Z; Sheng, S; Shevchenko, V; Shi, B; Shields, Eb; Shimizu, Y; Shmanin, E; Shorkin, R; Shupperd, Jd; Siddi, Bg; Silva Coutinho, R; Simi, G; Simone, S; Singla, M; Skidmore, N; Skuza, R; Skwarnicki, T; Slater, Mw; Smallwood, Jc; Smeaton, Jg; Smith, E; Smith, K; Smith, M; Snoch, A; Soares Lavra, L; Sokoloff, Md; Soler, Fjp; Solomin, A; Solovev, A; Solovyev, I; Song, R; Souza De Almeida, Fl; Souza De Paula, B; Spaan, B; Spadaro Norella, E; Spedicato, E; Spiridenkov, E; Spradlin, P; Sriskaran, V; Stagni, F; Stahl, M; Stahl, S; Stanislaus, S; Stein, En; Steinkamp, O; Stenyakin, O; Stevens, H; Stone, S; Strekalina, D; Su, Ys; Suljik, F; Sun, J; Sun, L; Sun, Y; Swallow, Pn; Swientek, K; Szabelski, A; Szumlak, T; Szymanski, M; Tan, Y; Taneja, S; Tat, Md; Terentev, A; Teubert, F; Thomas, E; Thompson, Djd; Thomson, Ka; Tilquin, H; Tisserand, V; T'Jampens, S; Tobin, M; Tomassetti, L; Tonani, G; Tong, X; Torres Machado, D; Tou, Dy; Trippl, C; Tuci, G; Tuning, N; Ukleja, A; Unverzagt, Dj; Usachov, A; Ustyuzhanin, A; Uwer, U; Vagner, A; Vagnoni, V; Valassi, A; Valenti, G; Valls Canudas, N; Van Dijk, M; Van Hecke, H; Van Herwijnen, E; Van Hulse, Cb; Van Veghel, M; Vazquez Gomez, R; Vazquez Regueiro, P; Vázquez Sierra, C; Vecchi, S; Velthuis, Jj; Veltri, M; Venkateswaran, A; Veronesi, M; Vesterinen, M; Vieira, D; Vieites Diaz, M; Vilasis-Cardona, X; Vilella Figueras, E; Villa, A; Vincent, P; Volle, Fc; Vom Bruch, D; Vorobyev, A; Vorobyev, V; Voropaev, N; Vos, K; Vrahas, C; Walsh, J; Walton, Ej; Wan, G; Wang, C; Wang, G; Wang, J; Wang, J; Wang, J; Wang, J; Wang, M; Wang, R; Wang, X; Wang, Y; Wang, Z; Wang, Z; Wang, Z; Ward, Ja; Watson, Nk; Websdale, D; Wei, Y; Westhenry, Bdc; White, Dj; Whitehead, M; Wiederhold, Ar; Wiedner, D; Wilkinson, G; Wilkinson, Mk; Williams, I; Williams, M; Williams, Mrj; Williams, R; Wilson, Ff; Wislicki, W; Witek, M; Witola, L; Wong, Cp; Wormser, G; Wotton, Sa; Wu, H; Wu, J; Wyllie, K; Xiang, Z; Xie, Y; Xu, A; Xu, J; Xu, L; Xu, L; Xu, M; Xu, Q; Xu, Z; Xu, Z; Yang, D; Yang, S; Yang, X; Yang, Y; Yang, Z; Yang, Z; Yeomans, Le; Yeroshenko, V; Yeung, H; Yin, H; Yu, J; Yuan, X; Zaffaroni, E; Zavertyaev, M; Zdybal, M; Zeng, M; Zhang, C; Zhang, D; Zhang, L; Zhang, S; Zhang, S; Zhang, Y; Zhang, Y; Zhao, Y; Zharkova, A; Zhelezov, A; Zheng, Y; Zhou, T; Zhou, X; Zhou, Y; Zhovkovska, V; Zhu, X; Zhu, X; Zhu, Z; Zhukov, V; Zou, Q; Zucchelli, S; Zuliani, D; Zunica, G; Lhcb, C
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