English
Related papers

Related papers: Heavy Meson Hyperfine Splitting: A Complete $1/m_Q…

200 papers

The contributions to heavy meson mass differences by the strong hyperfine interaction, the light quark masses and the electromagnetic interaction are obtained from the empirical values of the $D$, $D^*$, $B$ and $B^*$ masses by means of a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jose L. Goity , Chandana P. Jayalath

Starting with a hidden local symmetry Lagrangian at the vector manifestation (VM) fixed point that incorporates heavy-quark symmetry and matching the bare theory to QCD, we calculate the splitting of chiral doublers of heavy-light mesons…

High Energy Physics - Phenomenology · Physics 2009-11-10 Masayasu Harada , Mannque Rho , Chihiro Sasaki

Operating just once with the naive Foldy-Wouthuysen-Tani transformation on the relativistic Fermi-Yang equation for $Q\bar q$ bound states described by the semi-relativistic Hamiltonian which includes Coulomb-like as well as confining…

High Energy Physics - Phenomenology · Physics 2011-02-21 Takayuki Matsuki , Toshiyuki Morii

This paper considers the implications of the heavy quark and chiral symmetries for the semi-leptonic decay $B \rightarrow D^* X \ell \bar \nu_\ell$. The general kinematic analysis for decays of the form {\sl pseudoscalar meson $\rightarrow$…

High Energy Physics - Phenomenology · Physics 2009-10-22 C. L. Y. Lee

This is a short review of the present status of the dynamics of the heavy quarks extracted from QCD spectral sum rules. We discuss the determination of the ``perturbative" quark mass, the decay constants of the $D$ and $B$ mesons, the form…

High Energy Physics - Phenomenology · Physics 2008-02-03 S. Narison

We report the non-perturbative tuning of parameters--- kappa_c, kappa_b, and kappa_crit ---that determine the heavy-quark mass in the Fermilab action. This requires the computation of the masses of Ds^(*) and Bs^(*) mesons comprised of a…

We investigate the chiral extrapolation of the lattice data for the light-heavy meson hyperfine splittings D^*-D and B^*-B to the physical region for the light quark mass. The chiral loop corrections providing non-analytic behavior in m_\pi…

High Energy Physics - Lattice · Physics 2010-02-17 X. -H. Guo , P. C. Tandy , A. W. Thomas

We investigate the hyperfine splitting of the heavy baryons in the bound-state approach. We start with an ordinary relativistic Lagrangian which has been extensively used to discuss finite mass corrections to the heavy limit predictions. It…

High Energy Physics - Phenomenology · Physics 2009-10-28 Masayasu Harada , Asif Qamar , Francesco Sannino , Joseph Schechter , Herbert Weigel

Hyperfine splittings (HFS) are calculated within the Field Correlator Method, taking into account relativistic corrections. The HFS in bottomonium and the $B_q$ (q=n,s) mesons are shown to be in full agreement with experiment if a universal…

High Energy Physics - Phenomenology · Physics 2011-05-05 A. M. Badalian , B. L. G. Bakker , I. V. Danilkin

The hyperfine mass splittings of baryons containing a heavy quark are derived at leading order in large $N$ QCD. Hyperfine splittings either preserve or violate heavy quark spin symmetry. Previous work proves that the splittings which…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Jenkins

We consider the ratios of doubly heavy baryon masses using Double Ratios of Sum Rules (DRSR), which are more accurate than the usual simple ratios used for getting hadron masses. Our results are comparable with the ones from potential…

High Energy Physics - Phenomenology · Physics 2011-02-15 R. M. Albuquerque , S. Narison

We review heavy quark flavor and spin symmetries, their exploitation in heavy meson effective theories and the flavored couplings of charmed and light mesons in the definition of their effective Lagrangians. We point out how nonperturbative…

High Energy Physics - Phenomenology · Physics 2022-09-21 Bruno El-Bennich , Fernando E. Serna

Mass splitting between axial and vector $\bar{Q}q$ mesons is considered within the standard QCD sum rules. In agreement with the first experimental data on the $B_1$ meson ($J^P =1^{+}$) we find that the splitting for B is about the same as…

High Energy Physics - Phenomenology · Physics 2008-02-03 V. L. Eletsky

This talk summarizes the study of the dynamics of the heavy-light \bar Qq open charm and beauty mesons obtained in [1] using QCD spectral sum rules (QSSR) and motivated by the recent experimental discovery of the D{sJ}(2317) and D{sJ}(2457)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stephan Narison

The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale.…

High Energy Physics - Phenomenology · Physics 2009-10-22 James F. Amundson , Jonathan L. Rosner

The mass splittings of the pseudoscalar and vector D and B light-heavy quark systems have been calculated using the method of QCD sum rules. Electromagnetic, quark mass, and nonperturbative QCD effects are all included. The results are in…

High Energy Physics - Phenomenology · Physics 2009-09-25 Leonard S. Kisslinger , Zhenping Li

Recently we have proposed a new level-classification scheme of hadrons with a manifestly covariant framework. In this scheme the requirement of chiral symmetry on the light quark leads to a prediction of existence of new type of scalars…

High Energy Physics - Phenomenology · Physics 2009-11-07 Muneyuki Ishida , Shin Ishida

We extract directly (for the first time) the charmed (C=1) and bottom (B=-1) heavy-baryons (spin 1/2 and 3/2) mass-splittings due to SU(3) breaking using double ratios of QCD spectral sum rules (QSSR) in full QCD, which are less sensitive…

High Energy Physics - Phenomenology · Physics 2014-11-18 R. M. Albuquerque , S. Narison , M. Nielsen

We compute the O(1/M,m_s) heavy quark and SU(3) corrections to B_s -> D_s e nu form factors. In the limit of vanishing light quark mass, B_s -> D_s e nu form factors are given in terms of the the B -> D e nu form factors, the leading order…

High Energy Physics - Phenomenology · Physics 2009-10-28 C. Glenn Boyd , Benjamin Grinstein

The decays D^* -> D\pi and D^* -> D\gamma are well described by heavy meson chiral perturbation theory. With the recent measurement of Br(D^{*+} -> D^+ \gamma), the D^{*0}, D^{*+}, and D_s^* branching fractions can be used to extract the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Iain W. Stewart