Excitations of single-beauty hadrons

Abstract

In this work we study the predominantly orbital and radial excitations of hadrons containing a single heavy quark. We present meson and baryon mass splittings and ratios of meson decay constants (e.g., $f_{B_s}/f_B$ and $f_{B_s^{\prime }}/f_{B_s}$) resulting from quenched and dynamical two-flavor configurations. Light quarks are simulated using the chirally improved (CI) lattice Dirac operator at valence masses as light as $M_{\pi }\approx 350$ MeV. The heavy quark is approximated by a static propagator, appropriate for the $b$ quark on our lattices ($1/a\sim 1-2$ GeV). We also include some preliminary calculations of the $O(1/m_Q^{})$ kinetic corrections to the states, showing, in the process, a viable way of applying the variational method to three-point functions involving excited states. We compare our results with recent experimental findings.

23 pages, 18 figures, 17 tables; slight title change (Ed. killjoy); reference added; version to appear in Phys Rev D

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Cited by in corpus (30)

• A review of the open charm and open bottom systems
• On the generalized eigenvalue method for energies and matrix elements in lattice field theory
• Charmed bottom baryon spectroscopy from lattice QCD
• Exotic and excited-state radiative transitions in charmonium from lattice QCD
• P-wave charmed baryons from QCD sum rules
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• Calculation of the heavy-hadron axial couplings g_1, g_2, and g_3 using lattice QCD
• Precise B, B_s and B_c meson spectroscopy from full lattice QCD
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• Description of the ${\Xi }_c$ and ${\Xi }_b$ states as molecular states
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• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
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• The continuum limit of the static-light meson spectrum
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• On internal structure of the heavy-light mesons
• The chiral and angular momentum content of the rho-meson
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• B-meson spectroscopy in HQET at order 1/m
• Bottom-Hadron Mass Splittings from Static-Quark Action on 2+1-Flavor Lattices
• Highly excited $B$, $B_s$ and $B_c$ meson spectroscopy from lattice QCD
• Effective chiral restoration in the rho'-meson in lattice QCD
• Experimental realization of smectic phase in vortex matter induced by symmetric potentials arranged in two-fold symmetry arrays
• Heavy-light hadrons and their excitations