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The exploration of the non-perturbative regime of QCD, that is the low-energy portion of the hadron spectrum, requires the adoption of theoretical methods more frequently applied to other, more conventional, quantum many body systems, like…

Nuclear Theory · Physics 2021-09-01 Tochtli Yepez-Martinez , Peter O. Hess , Osvaldo Civitarese

In this work, we study higher $B_c$ mesons to the $L=S$, $P$, $D$, $F$, $G$ multiplets using the Cornell potential model, which takes account of the screening effect. The calculated mass spectra of $B_c$ states are in reasonable agreement…

High Energy Physics - Phenomenology · Physics 2023-08-30 Ting-yan Li , Long Tang , Zheng-yuan Fang , Chao-hui Wang , Cheng-qun Pang

In this work, an unquenched quark model is proposed for describing the heavy-light mesons by taking into account the coupled-channel effects induced by chiral dynamics. After including a relativistic correction term for the strong…

High Energy Physics - Phenomenology · Physics 2023-12-11 Ru-Hui Ni , Jia-Jun Wu , Xian-Hui Zhong

We extract the mass spectra of triply heavy baryon $\Omega_{ccb}$ using Hypercentral constituent quark model. The first order correction is also added to the potential term of Hamiltonian. The radial and orbital excited state masses are…

High Energy Physics - Phenomenology · Physics 2018-04-19 Zalak Shah , Ajay Kumar Rai

Phenomenological potentials describe the quarkonium systems like Charmonia, Bottomonia and $B_c$ Meson. They give a good accuracy for the mass spectra. In the present work we extend one of our previous works in the central case by adding…

High Energy Physics - Phenomenology · Physics 2020-09-21 Hesham Mansour , Ahmed Gamal , M. Abolmahasen

Considering the fact that some excited states of the heavy quarkonia (charmonium and bottomonium) still missing in experimental observations and potential applications of the relevant wave functions of the bound states, we re-analyze the…

High Energy Physics - Phenomenology · Physics 2011-01-28 Chao-Hsi Chang , Guo-Li Wang

Recently a lot of progress has been made in deriving the heavy quark potential within a QCD medium. In this article we have considered heavy quarkonium in a hot quark gluon plasma phase. The heavy-quark potential has been modeled properly…

Nuclear Theory · Physics 2018-06-26 P. K. Srivastava , O. S. K. Chaturvedi , Lata Thakur

I discuss the spectrum of hadrons containing heavy quarks ($b$ or $c$), and how well the experimental results are matched by theoretical ideas. Useful insights come from potential models and applications of Heavy Quark Symmetry and these…

High Energy Physics - Phenomenology · Physics 2009-10-30 C. T. H. Davies

We discuss the application of a relativistic potential model to the description of the spectrum and radiative transitions in mesons containing at least one heavy quark (b or c). Although the model has a small number of parameters, it is…

High Energy Physics - Phenomenology · Physics 2026-05-06 I. V. Obraztsov , A. E. Bondar , A. I. Milstein

We present a detailed evaluation of the total semileptonic B meson width in terms of |V_{cb}| and heavy quark parameters (quark masses and the expectation values of local heavy quark operators). Special attention is given to perturbative…

High Energy Physics - Phenomenology · Physics 2010-11-23 D. Benson , I. I. Bigi , Th. Mannel , N. Uraltsev

Quantum Chromodynamics is the theory of strong interactions. It has been shown during the last decades that it describes correctly most of the properties of hadrons at high energy. The most distinctive feature of the theory is the…

Nuclear Theory · Physics 2026-03-10 O Civitarese , S. Fassari , M. Gadella , F. Rinaldi

recently proposed strictly phenomenological static quark-antiquark potential belonging to the generality $V(r)=-Ar^{-\alpha}+\kappa r^{\beta}+V_{0}$ is tested with heavy quarkonia in the context of the shifted large N-expansion method. This…

High Energy Physics - Phenomenology · Physics 2009-11-11 Sameer M. Ikhdair , Ramazan Sever

We calculate the $c\bar{b}$ mass spectrum, the splitting values and some other properties in the framework of the semi-relativistic equation by applying the shifted large-N expansion technique. We use seven different central potentials…

High Energy Physics - Phenomenology · Physics 2011-03-23 Sameer M. Ikhdair , Ramazan Sever

Calculations of the heavy-heavy spectrum present a good opportunity for precision tests of QCD using lattice techniques. All methods make use of a non-relativistic expansion of the action and its systematic improvement to remove lattice…

High Energy Physics - Lattice · Physics 2009-10-22 C. T. H. Davies

We present a calculation of the spectrum of charmonia, bottomonia and B_c-meson states with `ordinary' and exotic quantum numbers. We discuss the merits and limitations of a rainbow-ladder truncation of Dyson-Schwinger and Bethe-Salpeter…

High Energy Physics - Phenomenology · Physics 2015-06-22 Christian S. Fischer , Stanislav Kubrak , Richard Williams

We investigate the influence of a homogeneus and constant strong external magnetic field on the heavy-meson spectrum. Quarkonium states $c\bar{c}$ and $b\bar{b}$ are described within a non-relativistic framework and by means of a suitable…

High Energy Physics - Phenomenology · Physics 2015-09-14 Claudio Bonati , Massimo D'Elia , Andrea Rucci

The spectra and wave functions of heavy-light mesons are calculated within a relativistic quark model, which is based on a heavy-quark expansion of the instantaneous Bethe-Salpeter equation by applying the Foldy-Wouthuysen transformation.…

High Energy Physics - Phenomenology · Physics 2017-06-07 Jing-Bin Liu , Cai-Dian Lu

Many new results on hadron spectra have been appearing in the past few years thanks to improved experimental techniques and searches in new channels. New theoretical techniques including refined methods of lattice QCD have kept pace with…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jonathan L. Rosner

The bottom-charmed ($B_c$) mesons are more stable than their charmonium ($c\bar c$) and bottomium ($b\bar b$) partners because they cannot annihilate into gluons. However, the low production cross-sections and signal-to-background ratios…

High Energy Physics - Phenomenology · Physics 2020-04-22 Pablo G. Ortega , Jorge Segovia , David R. Entem , Francisco Fernandez

We study electromagnetic transitions: $B_c^*(ns)\to B_c(ns) e^+ e^-$, $B_c^*(ns)\to B_c(n^{\prime}s) e^+ e^-$ and $B_c(ns)\to B^*_c(n^{\prime}s) e^+ e^-$ in the relativistic independent quark (RIQ) model based on a flavor-independent…

High Energy Physics - Phenomenology · Physics 2018-04-04 Sonali Patnaik , P. C. Dash , Susmita Kar , N. Barik