Physics of B_c mesons

Abstract

In the framework of potential models for heavy quarkonium the mass spectrum for the system ($\bar{b}c$) is considered. Spin-dependent splittings, taking into account a change of a constant for effective coulomb interaction between the quarks, and widths of radiative transitions between the ($\bar{b}c$) levels are calculated. In the framework of QCD sum rules, masses of the lightest vector $B_c^{\ast }$ and pseudoscalar $B_c$ states are estimated, scaling relation for leptonic constants of heavy quarkonia is derived, and the leptonic constant $f_{B_c}$ is evaluated. The $B_c$ decays are considered in the framework of both the potential models and the QCD sum rules, where the significance of Coulomb-like corrections is shown. The relations, following from the approximate spin symmetry for the heavy quarks in the heavy quarkonium, are analysed for the form factors of the semileptonic weak exclusive decays of $B_c$. The $B_c$ lifetime is evaluated with the account of the corrections to the spectator mechanism of the decay, because of the quark binding into the meson. The total and differential cross sections of the $B_c$ production in different interactions are calculated. The analytic expressions for the fragmentational production cross sections of $B_c$ are derived. The possibility of the practical $B_c$ search in the current and future experiments at electron-positron and hadron colliders is analysed.

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References in corpus (9)

• Perturbative QCD Fragmentation Functions for $B_c$ and $B_c^{\ast }$ Production
• Two-loop renormalization of the effective field theory of a static quark
• Semileptonic $B_c$ Decay and Heavy Quark Spin Symmetry
• Heavy Quark Fragmentation into Heavy Mesons
• Quark Model Form Factors for Heavy Quark Effective Theory
• Heavy Quark Fragmentation to Polarised Quarkonium
• Photonic production of B_c-mesons
• Nonet Symmetry and Two-Body Decays of Charmed Mesons
• $B_c$ Physics at Hadron Colliders

Cited by in corpus (106)

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• Semileptonic B_c-meson decays in sum rules of QCD and NRQCD
• Impact of polarization observables and $B_c\to \tau \nu$ on new physics explanations of the $b\to c\tau \nu$ anomaly
• Addendum to "Impact of polarization observables and $B_c\to \tau \nu$ on new physics explanations of the $b\to c\tau \nu$ anomaly"
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• Mass spectra of doubly heavy Omega_QQ' baryons
• Combined explanations of $(g-2{)}_{\mu }$, $R_{D^{(\ast )}}$, $R_{K^{(\ast )}}$ anomalies in a two-loop radiative neutrino mass model
• \large\bf $B_c\to (J/\Psi ,{\eta }_c)\tau \nu$ semileptonic decays within Standard model and beyond
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• A Prediction of the B*_c mass in full lattice QCD
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• $M(B_c^{\ast })-M(B_c)$ Splitting from Nonrelativistic Renormalization Group
• $B_c$ Meson Production around the $Z^0$ Peak at a High Luminosity $e^{+}{e}^{-}$ Collider
• Measurement of the lifetime of the $B_c^{+}$ meson using the $B_c^{+}\to J/\psi {\pi }^{+}$ decay mode
• A Common Origin of Neutrino Masses and $R_{D^{(\ast )}}$, $R_{K^{(\ast )}}$ Anomalies
• Analysis of the vector and axialvector $B_c$ mesons with QCD sum rules
• B_c Meson Production in Nuclear Collisions at RHIC
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• How to Search for Doubly Charmed Baryons and Tetraquarks
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• Relativistic effects in the production of pseudoscalar and vector doubly heavy mesons from e^+e^- annihilation
• Study of Bc -> BP,BV Decays with QCD Factorization
• Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of B(c)* meson mass
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• Observation of the decay $B_c\to J/\psi K^{+}{K}^{-}{\pi }^{+}$
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• Light hadron production in $B_c\to J/\psi +X$ decays
• Heavy quark potential in the static limit of QCD
• $c\bar{b}$ spectrum and decay properties with coupled channel effects
• Model independent analysis of $b\to (c,u)\tau \nu$ leptonic and semileptonic decays
• B_c -> l nu gamma decay in light cone QCD
• Analysis of the rare semileptonic $B_c \rar P(D,D_s) l^{+}l^{-}/ν\barν$ decays within QCD sum rules
• A non-perturbative calculation of the mass of the Bc
• Two-Photon, Two-gluon and Radiative Decays of Heavy Flavoured Mesons
• Hadronic Production of S-wave and P-wave Charmed Beauty Mesons via Heavy Quark Fragmentation
• Gold-plated Mode of CP-Violation in Decays of B_c Meson from QCD Sum Rules
• Next-to-leading order QCD corrections to paired $B_c$ production in $e^{+}{e}^{-}$ annihilation
• Relativistic description of the double charmonium production in $e^{+}{e}^{-}$ annihilation
• Radiative decays of Bc mesons in a Bethe-Salpeter model
• Heavy Quarkonium Production at LHC through $W$ Boson Decays
• Doubly heavy baryons in sum rules of NRQCD
• Relativistic effects in the processes of heavy quark fragmentation
• Production of charged $\pi$-mesons in exclusive $B_c\to V(P)+n\pi$ decays
• 2-loop QCD corrections to Bc-meson leptonic constant
• Analytic approach to calculations of mass spectra and decay constants of heavy-light quarkonia in the framework of Bethe-Salpeter equation
• The radiative decays $B_c^{\ast \pm }\to B_c^{\pm }\gamma$ with QCD sum rules
• Excited Heavy Quarkonium Production via Z^0 Decays at a High Luminosity Collider
• Mass spectra and decays of ground and orbitally excited $c\bar{b}$ states in non relativistic quark model
• $B_c$ excitations at LHC experiments
• Magnetic Dipole Transitions of $B_c$ and $B_c^{\ast }$ mesons in the Relativistic Independent Quark Model
• Relativistic corrections to the pair $B_c$-meson production in $e^{+}{e}^{-}$ annihilation
• The $B_c$ meson and its scalar cousin with the QCD sum rules
• Higgs boson decay to paired $B_c$: relativistic and one-loop corrections
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• R Parity violating enhancement of Bu -> l nu and Bc -> l nu
• Radiative Leptonic B_c Decays in Effective Field Theory
• Exclusive radiative weak decays of B_c meson in light cone QCD
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• Photoproduction of the $B_c^{(\ast )}$ Meson at the LHeC
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• Branching ratios of $B_c$ Meson Decaying to Vector and Axial-Vector Mesons
• Observation of the $B_c^{+}\to J/\psi {\pi }^{+}{\pi }^0$ decay
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• Study of the $B_c$ $\to$ $B_s\pi$ decay with the perturbative QCD approach
• P-wave excited $B_c^{\ast \ast }$ meson photoproduction at the LHeC
• Probing New Physics in light of recent developments in $b\to c\ell \nu$ transitions
• First Estimates of Nonleptonic $B_c\to AT$ Weak Decays
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• Radiative B_c -> tau nu_tau gamma decay
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• Spectra and Decay Properties of Higher Lying $B_C$ Meson States
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• Effects of a Single Universal Extra Dimension in $B_c\to (D_s,D){\ell }^{+}{\ell }^{-}$ Decays