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Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S et al (show 901 more authors) , Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bowcock, TJV 
ORCID: 0000-0002-3505-6915, Boyer, A, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, Brodski, M, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buchanan, E, Büchler-Germann, A, Buonaura, A, Burr, C, Bursche, A, Butkevich, A, Butter, JS, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calero Diaz, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Camargo Magalhaes, P, Camboni, A, Campana, P, Campora Perez, DH, Campoverde Quezada, AF, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carvalho Akiba, K, Casais Vidal, A, Casse, G, Cattaneo, M, Cavallero, G, Celani, S, Cenci, R, Cerasoli, J, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chekalina, V, Chen, C, Chen, S, Chernov, A, Chitic, S-G, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, MF, Cid Vidal, X, Ciezarek, G, Cindolo, F, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Cobbledick, JL, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Contu, A, Cooke, N, Coombs, G, Coquereau, S, Corti, G, Costa Sobral, CM, Couturier, B, Craik, DC, Crkovská, J, 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, De Aguiar Francisco, O, 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-P, Dendek, A, Denysenko, V, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Canto, A, Di Nezza, P, Didenko, S, Dijkstra, H, Dobishuk, V, Dordei, F, Dorigo, M, dos Reis, AC, Douglas, L, Dovbnya, A, Dreimanis, K, Dudek, MW, Dufour, L, 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 ORCID: 0000-0002-3153-430X, Farley, N, Farry, S, Fazzini, D, Fedin, P, Féo, M, Fernandez Declara, P, Fernandez Prieto, A, 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, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Franco Lima, V, Franco Sevilla, M, Frank, M, Frei, C, Friday, DA, Fu, J, Fuehring, Q, Funk, W, Gabriel, E, Gaintseva, T, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garcia Martin, LM, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, FA, Garrido, L, Gascon, D, Gaspar, C, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Ghez, Ph, Gibson, V, Gioventù, A, Gironella Gironell, P, Giubega, L, Giugliano, C, Gizdov, K, Gligorov, VV, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gorbounov, P, Gorelov, IV, Gotti, C, Govorkova, E, Grabowski, JP, Graciani Diaz, R, Grammatico, T, Granado Cardoso, LA, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, P, Grillo, L, Gruber, L, Gruberg Cazon, BR, Gu, C, Guarise, M, Günther, PA, Gushchin, E, Guth, A, Guz, Yu, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haines, SC, Hamilton, PM, Han, Q, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hart, R, 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, Hopchev, PH, Hu, J, Hu, J, Hu, W, Huang, W, Hulsbergen, W, Humair, T, Hunter, RJ, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Hynds, D, Ibis, P, Idzik, M, Ilten, P, Inglessi, A, Ivshin, K, Jacobsson, R, Jakobsen, S, Jans, E, Jashal, BK, Jawahery, A, Jevtic, V, Jiang, F, John, M, Johnson, D, Jones, CR, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kim, KE, Kirn, T, Kirsebom, VS, Klaver, S, Klimaszewski, K, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, 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, Lancierini, D, Lane, JJ, Lanfranchi, G, Langenbruch, C, Lantwin, O, Latham, T, Lazzari, F, Le Gac, R, Lee, SH, Lefèvre, R, Leflat, A, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, L, Li, X, Li, Y, Li, Z, Liang, X, Lin, T, Lindner, R, Lisovskyi, V, Liu, G, Liu, X, Loh, D, Loi, A, Lomba Castro, J, Longstaff, I, Lopes, JH, Loustau, G, Lovell, GH, Lu, Y, Lucchesi, D, Lucio Martinez, M, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madhan Mohan, LR, Maev, O, Maevskiy, A, Maisuzenko, D, Majewski, 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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, 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, Pappenheimer, C, Parker, W, Parkes, C, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Perret, P, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pinzino, J, Pisani, F, Piucci, A, Placinta, V, Playfer, S, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Pomery, GJ, Ponce, S, Popov, 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(2020)
Precision measurement of the $$ {B}_c^{+} $$ meson mass.
Journal of High Energy Physics, 2020 (7).
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Abstract
<jats:title>A<jats:sc>bstract</jats:sc></jats:title><jats:p>A precision measurement of the<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>meson mass is performed using proton- proton collision data collected with the LHCb experiment at centre-of-mass energies of 7<jats:italic>,</jats:italic>8 and 13 TeV, corresponding to a total integrated luminosity of 9<jats:italic>.</jats:italic>0 fb<jats:sup><jats:italic>−</jats:italic>1</jats:sup>. The<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>mesons are reconstructed via the decays<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula><jats:italic>→ J/ψπ</jats:italic><jats:sup>+</jats:sup>,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula><jats:italic>→ J/ψπ</jats:italic><jats:sup>+</jats:sup><jats:italic>π</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup><jats:italic>π</jats:italic><jats:sup>+</jats:sup>,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+}\to J/\psi p\overline{p}{\pi}^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψp</mml:mi><mml:mover><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math></jats:alternatives></jats:inline-formula>,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+}\to J/\psi {D}_s^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:msubsup><mml:mi>D</mml:mi><mml:mi>s</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula><jats:italic>→ J/ψ D</jats:italic><jats:sup>0</jats:sup><jats:italic>K</jats:italic><jats:sup><jats:italic>+</jats:italic></jats:sup>and<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+}\to {B}_s^0{\pi}^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo>→</mml:mo><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math></jats:alternatives></jats:inline-formula>. Combining the results of the individual decay channels, the<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>mass is measured to be 6274<jats:italic>.</jats:italic>47<jats:italic>±</jats:italic>0<jats:italic>.</jats:italic>27 (stat)<jats:italic>±</jats:italic>0<jats:italic>.</jats:italic>17 (syst) MeV<jats:italic>/c</jats:italic><jats:sup>2</jats:sup>. This is the most precise measurement of the<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>mass to date. The difference between the<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_c^{+} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>and<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {B}_s^0 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>B</mml:mi><mml:mi>s</mml:mi><mml:mn>0</mml:mn></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>meson masses is measured to be 907<jats:italic>.</jats:italic>75<jats:italic>±</jats:italic>0<jats:italic>.</jats:italic>37 (stat)<jats:italic>±</jats:italic>0<jats:italic>.</jats:italic>27 (syst) MeV<jats:italic>/c</jats:italic>.</jats:p>
Dimensions
Dimensions
