Idioma:

Measurement of properties of B$^0_\mathrm{s}\to\mu^+\mu^-$ decays and search for B$^0\to\mu^+\mu^-$ with the CMS experiment

Sirunyan, Albert M ; De Wolf, Eddi A ; Grebenyuk, Anastasia ; Popov, Andrey ; David, Pieter ; Delcourt, Martin ; Giammanco, Andrea ; Wang, Dayong ; Roguljic, Matej ; Lampén, Tapio ; Tuuva, Tuure ; Ganjour, Serguei ; Agram, Jean-Laurent ; Beauceron, Stephanie ; Novak, Andrzej ; Bertsche, David ; Borras, Kerstin ; Guthoff, Moritz ; Kleinwort, Claus ; Zenaiev, Oleksandr ; Kutzner, Viktor ; Niemeyer, Caroline Elisabeth Niniane ; Schröder, Matthias ; Geralis, Theodoros ; Saoulidou, Niki ; Vourliotis, Emmanouil ; Czellar, Sandor ; Sharma, Sandeep ; Dugad, Shashikant ; Rane, Aditee ; My, Salvatore ; Castro, Andrea ; Ciocca, Claudia ; Focardi, Ettore ; Zuolo, Davide ; Carlin, Roberto ; Fiorina, Davide ; Riccardi, Cristina ; Mariani, Valentina ; Rizzi, Andrea ; Longo, Egidio ; Costa, Marco ; Mariotti, Chiara ; Maselli, Silvia ; Lee, Seh Wook ; Choi, Junho ; Lee, Kyeongpil ; Lee, Jongseok ; Rinkevicius, Aurelijus ; Zolkapli, Zukhaimira ; Sánchez Hernández, Alberto ; Butler, Philip H ; Ahmad, Ashfaq ; Shoaib, Muhammad ; Waqas, Muhammad ; Araujo, Mariana ; Savina, Maria ; Murzin, Victor ; Epshteyn, Vladimir ; Toms, Maria ; Aushev, Tagir ; Kirakosyan, Martin ; Savrin, Viktor ; Navarro Tobar, Álvaro ; Bocci, Andrea ; Brondolin, Erica ; De Roeck, Albert ; Treille, Daniel ; Langenegger, Urs ; Gokbulut, Gul ; Schuh, Thomas ; Dauncey, Paul ; Lyons, Louis ; Morton, Alexander ; Duh, Yi-Ting ; Wang, Zhangqier ; Yates, Brent ; Pieri, Marco ; Franco Sevilla, Manuel ; Mei, Hualin ; Qu, Huilin ; Ford, William T ; Frankenthal, Andre ; Zientek, Margaret ; Liu, Miaoyuan ; Hagopian, Sharon ; Bilki, Burak ; King, Jack ; Bi, Ran ; Goncharov, Maxim ; Tatar, Kaya ; Barberis, Emanuela ; Hahn, Kristan Allan ; Musienko, Yuri ; Tully, Christopher ; Norberg, Scarlet ; Peng, Cheng-Chieh ; Piperov, Stefan ; Bouhali, Othmane ; Pinna, Deborah

Deutsches Elektronen-Synchrotron, DESY, Hamburg 2020

Sem texto completo

Citações Citado por

Enviar para

Título:
Measurement of properties of B$^0_\mathrm{s}\to\mu^+\mu^-$ decays and search for B$^0\to\mu^+\mu^-$ with the CMS experiment
Autor: Sirunyan, Albert M ; De Wolf, Eddi A ; Grebenyuk, Anastasia ; Popov, Andrey ; David, Pieter ; Delcourt, Martin ; Giammanco, Andrea ; Wang, Dayong ; Roguljic, Matej ; Lampén, Tapio ; Tuuva, Tuure ; Ganjour, Serguei ; Agram, Jean-Laurent ; Beauceron, Stephanie ; Novak, Andrzej ; Bertsche, David ; Borras, Kerstin ; Guthoff, Moritz ; Kleinwort, Claus ; Zenaiev, Oleksandr ; Kutzner, Viktor ; Niemeyer, Caroline Elisabeth Niniane ; Schröder, Matthias ; Geralis, Theodoros ; Saoulidou, Niki ; Vourliotis, Emmanouil ; Czellar, Sandor ; Sharma, Sandeep ; Dugad, Shashikant ; Rane, Aditee ; My, Salvatore ; Castro, Andrea ; Ciocca, Claudia ; Focardi, Ettore ; Zuolo, Davide ; Carlin, Roberto ; Fiorina, Davide ; Riccardi, Cristina ; Mariani, Valentina ; Rizzi, Andrea ; Longo, Egidio ; Costa, Marco ; Mariotti, Chiara ; Maselli, Silvia ; Lee, Seh Wook ; Choi, Junho ; Lee, Kyeongpil ; Lee, Jongseok ; Rinkevicius, Aurelijus ; Zolkapli, Zukhaimira ; Sánchez Hernández, Alberto ; Butler, Philip H ; Ahmad, Ashfaq ; Shoaib, Muhammad ; Waqas, Muhammad ; Araujo, Mariana ; Savina, Maria ; Murzin, Victor ; Epshteyn, Vladimir ; Toms, Maria ; Aushev, Tagir ; Kirakosyan, Martin ; Savrin, Viktor ; Navarro Tobar, Álvaro ; Bocci, Andrea ; Brondolin, Erica ; De Roeck, Albert ; Treille, Daniel ; Langenegger, Urs ; Gokbulut, Gul ; Schuh, Thomas ; Dauncey, Paul ; Lyons, Louis ; Morton, Alexander ; Duh, Yi-Ting ; Wang, Zhangqier ; Yates, Brent ; Pieri, Marco ; Franco Sevilla, Manuel ; Mei, Hualin ; Qu, Huilin ; Ford, William T ; Frankenthal, Andre ; Zientek, Margaret ; Liu, Miaoyuan ; Hagopian, Sharon ; Bilki, Burak ; King, Jack ; Bi, Ran ; Goncharov, Maxim ; Tatar, Kaya ; Barberis, Emanuela ; Hahn, Kristan Allan ; Musienko, Yuri ; Tully, Christopher ; Norberg, Scarlet ; Peng, Cheng-Chieh ; Piperov, Stefan ; Bouhali, Othmane ; Pinna, Deborah
Assuntos: B/s0 --> muon+ muon ; B/s0: branching ratio: measured ; B/s0: leptonic decay ; B/s0: rare decay ; B0 --> muon+ muon ; B0: branching ratio: upper limit ; B0: leptonic decay ; B0: rare decay ; CERN LHC Coll ; CMS ; experimental results ; fragmentation function ; GeV-cms ; lifetime: measured ; muon: pair production ; p p: colliding beams ; p p: scattering ; statistical
Notas: JHEP reports 04(4), 188 (2020). doi:10.1007/JHEP04(2020)188
10.1007/jhep04(2020)188
Published by Elsevier, Amsterdam
arXiv:1910.12127
RelationTypeNote: IsVariantFormOf -- 10.1007/jhep04(2020)188
Descrição: Results are reported for the B$^0_\mathrm{s}\to\mu^+\mu^-$ branching fraction and effective lifetime and from a search for the decay B$^0\to\mu^+\mu^-$. The analysis uses a data sample of proton-proton collisions accumulated by the CMS experiment in 2011, 2012, and 2016, with center-of-mass energies (integrated luminosities) of 7 TeV (5 fb$^{-1}$), 8 TeV (20 fb$^{-1}$), and 13 TeV (36 fb$^{-1}$). The branching fractions are determined by measuring event yields relative to B$^+\to$J/$\psi$K$^+$ decays (with J/$\psi\to\mu^+\mu^-$), which results in the reduction of many of the systematic uncertainties. The decay B$^0_\mathrm{s}\to\mu^+\mu^-$ is observed with a significance of 5.6 standard deviations. The branching fraction is measured to be $\mathcal{B}$(B$^0_\mathrm{s}\to\mu^+\mu^-$) = [2.9$ ^{+0.7}_{-0.6}$ (exp)$\pm$0.2(frag)]$\times 10^{-9}$, where the first uncertainty combines the experimental statistical and systematic contributions, and the second is due to the uncertainty in the ratio of the B$^0_\mathrm{s}$ and the B$^+$ fragmentation functions. No significant excess is observed for the decay B$^0\to\mu^+\mu^-$, and an upper limit of $\mathcal{B}$(B$^0\to\mu^+\mu^-$) < 3.6$\times$10$^{-10}$ is obtained at 95% confidence level. The B$^0_\mathrm{s}\to\mu^+\mu^-$ effective lifetime is measured to be $\tau_{\mu^+\mu^-}$= 1.70$^{+0.61}_{-0.44}$ ps. These results are consistent with standard model predictions.
Editor: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Data de criação/publicação: 2020
Idioma: Inglês

Links

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Measurement of properties of B$^0_\mathrm{s}\to\mu^+\mu^-$ decays and search for B$^0\to\mu^+\mu^-$ with the CMS experiment

Deutsches Elektronen-Synchrotron, DESY, Hamburg 2020

Buscando em bases de dados remotas. Favor aguardar.