Relevant bibliographies by topics / Bc meson

Academic literature on the topic 'Bc meson'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Bc meson"

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Chen, Yu-Qi. "Production of the Bc Meson." International Journal of Modern Physics A 12, no. 22 (September 10, 1997): 4039–48. http://dx.doi.org/10.1142/s0217751x9700219x.

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The production of the Bc and [Formula: see text] mesons was studied in the framework of the factorization formalism and perturbative QCD. Predicted results implied that an observable number of Bc and [Formula: see text] events can be produced at LEP I and at Tevatron. The fragmentation approximation describes the production of the Bc and [Formula: see text] mesons very well in high energy e+ e- collisions. In hadronic collisions, it is valid when and only when the transverse momentum PT of the produced Bc and [Formula: see text] is much larger than the mass of the Bc meson.
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Falmagne, Guillaume. "First measurement of the Bc+ meson nuclear modification factor in PbPb collisions with CMS." EPJ Web of Conferences 259 (2022): 12011. http://dx.doi.org/10.1051/epjconf/202225912011.

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The Bc+ meson is observed in lead-lead and proton-proton collisions at a center-of-mass energy per nucleon pair of √SNN = 5.02 TeV, via the Bc+ → (J/ψ → μ+μ−)μ+vμ decay and using 2017 and 2018 data from the CMS detector. The resulting Bc+ nuclear modification factor is measured in two bins of the trimuon transverse momentum and of the collision centrality. Less suppression is observed than for other quarkonia and most open heavy flavour mesons. This first observation of the Bc+ meson in heavy ion collisions will shed light on the interplay of suppression and enhancement mechanisms in the production of heavy-flavor mesons in the quark-gluon plasma.
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Veliev, E. Veli, K. Azizi, H. Sundu, and N. Akşit. "Bc Meson at Finite Temperature." Nuclear Physics B - Proceedings Supplements 219-220 (October 2011): 170–73. http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.091.

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Abreu, P., W. Adam, T. Adye, I. Ajinenko, G. D. Alekseev, R. Alemany, P. P. Allport, et al. "Search for the Bc meson." Physics Letters B 398, no. 1-2 (April 1997): 207–22. http://dx.doi.org/10.1016/s0370-2693(97)00254-2.

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Itoh, C., T. Minamikawa, K. Miura, and T. Watanabe. "Bs and Bc meson masses." Il Nuovo Cimento A 105, no. 10 (October 1992): 1539–48. http://dx.doi.org/10.1007/bf02731983.

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Chang, Chao-Hsi, Jian-Ping Cheng, and Cai-Dian Lü. "Radiative leptonic decays of Bc meson." Physics Letters B 425, no. 1-2 (April 1998): 166–70. http://dx.doi.org/10.1016/s0370-2693(98)00177-4.

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Jamshidi, S., R. Sepahvand, and S. Dadfar. "Production of Bc Meson at NLO." International Journal of Theoretical Physics 59, no. 8 (July 13, 2020): 2255–70. http://dx.doi.org/10.1007/s10773-020-04457-6.

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Chang (Zhao-Xi Zhang), Chao-Hsi. "Production and decay of the meson Bc." International Journal of Modern Physics A 21, no. 04 (February 10, 2006): 777–84. http://dx.doi.org/10.1142/s0217751x06032022.

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Studies on the decay and production of [Formula: see text] meson are briefly reviewed. Considering RUN-II of Tevatron and the schedule of LHC, the theoretical studies of Bc meson will jump to a new stage not only for itself but also to implement the studies of the heavy quarkonia etc.
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Berezhnoy, A. V., and I. N. Belov. "D-wave Bc meson production at LHC." Journal of Physics: Conference Series 1690 (December 2020): 012089. http://dx.doi.org/10.1088/1742-6596/1690/1/012089.

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Cheung, Kingman. "Bc meson production at the Tevatron revisited." Physics Letters B 472, no. 3-4 (January 2000): 408–11. http://dx.doi.org/10.1016/s0370-2693(99)01402-1.

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Dissertations / Theses on the topic "Bc meson"

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FIORENDI, SARA. "Measurement of the ratio B(Bc± → J/ψπ±π±π∓ )/B(Bc± → J/ψπ± ) and the production cross sections times branching fractions of Bc± → J/ψπ± and B± → J/ψK± in CMS." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/55490.

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Il mesone pseudoscalare Bc, stato fondamentale del sistema ( ̄bc), è la particella più leggera formata da due quark pesanti di diverso sapore, e rappresenta perciò un laboratorio ideale per lo studio della dinamica dei decadimenti degli Heavy Flavor. Lo studio delle proprietà del mesone Bc è di particolare interesse se paragonato agli stati ̄bb e ̄cc, che non portano sapore, e offre un nuovo terreno per verificare le predizioni dei modelli effettivi ispirati dalla cromodinamica quantistica. Ciascuno dei due quark costituenti la Bc può decadere attraverso l’interazione debole. In particolare, la transizione b → c, che copre circa il 20% del rate di decadimento, ha un’alta probabilità di produrre un mesone J/ψ nello stato finale, che costituisce una segnatura sperimentale facilmente identificabile. Infatti, la prima osservazione del mesone Bc è stata effettuata nel canale di decadi- mento semileptonico Bc+ → J/ψl+ν(l = e,μ) dalla Collaborazione CDF. Lo studio sperimentale del mesone Bc è entrato in una nuova fase con l’avvento del Large Hadron Collider (LHC) al CERN. Grazie alle alte energie e luminosità istantanee mai raggiunte prima, la statistica di eventi di Bc disponibile è molto più alta che negli esperimenti precedenti. Le caratteristiche dell’esperimento CMS (Compact Muon Solenoid) consentono di perseguire un ampio programma di misure nell’ambito della fisica del quark beauty. Accanto a ricerche indirette di nuova fisica attraverso lo studio di decadimenti rari, come Bs → μ+μ− e B0 → K0∗μ+μ−, lo studio del mesone Bc rappresenta un settore importante nel programma di fisica dell’esperimento. Inoltre, poichè la Bc rappresenta un potenziale background proprio nei decadimenti rari, una misura della sua sezione d’urto e la caratterizzazione dei suoi stati finali sono cruciali per poter ottenere un’accurata stima dei fondi. In questa tesi presento l’analisi dei canali di decadimento Bc+ → J/ψπ+π+π− e Bc+ → J/ψπ+, e una misura del rapporto delle loro Branching Fraction, RBc ≡ B(Bc+ → J/ψπ+π+π−)/B(Bc+ → J/ψπ+). La misura è stata ottenuta presso l’esperimento CMS a LHC. L’esperimento CMS, infatti, è particolarmente adatto allo studio degli stati finali contenenti mesoni J/ψ, dove J/ψ → μ+μ−, grazie alle eccellenti prestazioni dei sistemi di rivelazione di muoni e di tracciamento. La misura del rapporto RB è 2.55 ± 0.80(stat.) ± 0.33(syst.)+0.04-0.01(τBc ). Questo rapporto è indipendente dalla sezione d’urto della Bc, la cui misura non è ancora disponibile. Il canale Bc+ → J/ψπ+ è anche confrontato con il decadimento B+ → J/ψK+, che ha le stesse caratteristiche topologiche. Il rapporto delle sezioni d’urto moltiplicato per le rispettive Branching Fractions è misurato essere [0.48± 0.05(stat.)±0.03(syst.)±0.05(τBc)]%. Nello spazio cinematico esplorato, il momento traverso del mesone Bc+ è maggiore di 15 GeV e la regione di rapidità è |y| < 1.6, complementare a quella accessibile all’esperimento LHCb. Questa misura contribuisce a una comprensione più completa della produzione di Bc+ in collisioni protone-protone. L’analisi è stata condotta sui dati raccolti da CMS a sqrt(s) = 7 TeV, che corrispondono a una luminosità integrata di 5.1 fb−1. Il trigger utilizzato per la selezione degli eventi si basa sull’identificazione dei due muoni provenienti dal decadimento del mesone J/ψ. L’abbondante fondo combinatorio è stato ridotto sfruttando selezioni topologiche e cinematiche. L’efficienza di ricostruzione è stata accuratamente parametrizzata e misurata su appositi campioni Monte Carlo, che ben riproducono le condizioni della presa dati. Sono state valutate diverse fonti di incertezza sistematica, descritte accuratamente nel testo.
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Nicolas, Ludovic Yannick. "Radiation environment simulations at the Tevatron, studies of the beam profile, and measurement of the Bc meson mass." Thesis, University of Glasgow, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425156.

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TARONI, SILVIA. "Performance of the cms forward pixel detector and analysis of the Bc to J/psi pi decay channel." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/7780.

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The performance of the irradiate CMS forward pixel detector are discussed in the first part of the thesis. The analysed data are collected in a testbeam of a detector module irradiated up to 45 Mrad. The high absorbed dose has not compromised the detector response. In the second part, the feasibility of the analysis of the B_c decaying into J/psi + pion at CMS is expounded. The results are obtained for 1fb-1 and 200pb-1 of integrated luminosity.
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ANDERLINI, LUCIO. "Measurement of the Bc meson lifetime using Bc -> J/psi mu nu X decays with the LHCb detector at CERN." Doctoral thesis, 2014. http://hdl.handle.net/2158/979791.

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The precision measurement of the \Bc meson lifetime provides an essential test of the models describing the unique open-flavour state composed of two heavy quarks. It is also a necessary input for all measurements of \Bc production and decay branching fractions. The first measurement of the \Bc lifetime achieved by the LHCb Collaboration is presented in this Thesis. The data sample collected in 2012, in $pp$ collisions at a centre-of-mass energy of 8 TeV, and corresponding to an integrated luminosity of 2 fb$^{-1}$, is analysed to select \BctojmX decays. A two-dimensional data-model is developed combining the information on the invariant mass of the \jpsimup combination and the decay time, as measured in the rest-frame of the \jpsimup combination. Data-driven techniques are proposed to model the background sources, including the candidates selected because of the misidentification of a hadron as the muon produced in a \Bc decay, for which an original technique has been developed. The template distribution for \BctojmX decays relies on realistic dynamical models including feed-down decays, and depends on the \Bc lifetime through a statistical correction between the \Bc and \jpsimup rest frames, known as $k$-factor. Data-driven cross-checks are used to test the dynamical model and assess the related uncertainties. The measured lifetime is $%\begin{equation} \tau_{\Bc} = 509 \pm 8 \stat \pm 12 \syst \ \mathrm{fs}, $ %\end{equation} where the largest systematic uncertainty is due to the statistical model used to describe the combinatorial background, which is the only one relying on simulation.
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Book chapters on the topic "Bc meson"

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Ivanov, M. A., and V. E. Lyubovitskij. "Exclusive Rare Decays of B and Bc Mesons in a Relativistic Quark Model." In Heavy Quark Physics, 245–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-40975-5_9.

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Conference papers on the topic "Bc meson"

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Tsybychev, Dmitri. "Properties of the Bc meson." In PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP, 2006. http://dx.doi.org/10.1063/1.2220328.

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Issadykov, Aidos, Zhomart Tyulemissov, and Kanat Nurlan. "Nonleptonic decays of Bc meson." In PROCEEDINGS OF THE 24TH INTERNATIONAL SCIENTIFIC CONFERENCE OF YOUNG SCIENTISTS AND SPECIALISTS (AYSS-2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0063296.

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Devlani, Nayneshkumar, and Ajay Kumar Rai. "Spectroscopy and lifetime of the Bc meson." In PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS AND MATERIAL SCIENCE: RAM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4810620.

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Anderlini, Lucio. "Properties and decays of the Bc meson." In XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.203.0177.

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Süngü, J. Y., K. Azizi, and H. Sundu. "Transition form factors of P wave bottomonium χb0 (1P) into Bc meson." In QCD@WORK 2012: International Workshop on Quantum Chromodynamics: Theory and Experiment. AIP, 2012. http://dx.doi.org/10.1063/1.4763504.

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Tuning, Niels. "Studies of the properties and decays of the Bc meson at LHCb." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0379.

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Faustov, Rudolf Nikolaevich, Dietmar Ebert, and Vladimir Galkin. "Spectroscopy and Regge trajectories of heavy quarkonia and Bc mesons." In XXI International Baldin Seminar on High Energy Physics Problems. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.173.0058.

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Hsieh, Tung-Han. "Bs and Bc mesons in lattice QCD with exact chiral symmetry." In XXIVth International Symposium on Lattice Field Theory. Trieste, Italy: Sissa Medialab, 2006. http://dx.doi.org/10.22323/1.032.0180.

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Reports on the topic "Bc meson"

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Aoki, Masato. Measurement of the Bc meson Lifetime with the Collider Detector at Fermilab. Office of Scientific and Technical Information (OSTI), February 2006. http://dx.doi.org/10.2172/1415840.

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