Decay constants of B and D mesons from non-perturbatively improved lattice QCD
By K. C. Bowler, L. Del Debbio, J. M. Flynn, G. Lacagnina, V. Lesk, C. Maynard, D. G. Richards. 2000
261 citations recorded by the source corpus.
The decay constants of B and D mesons are computed in quenched lattice QCD at two dierent values of the coupling. The action and operators areO(a )i mproved with non-perturbative coecients where available. The results are fB = 218 +5 5 +5 41 MeV, fD = 220 +3 3 +2 24 MeV, fBs = 242 +4 4 +13 48 MeV, fDs = 241 +2 2 +7 30 MeV. Systematic errors are discussed in detail. Results for vector decay constants, avour symmetry breaking ratios of decay constants, the pseudoscalar-vector mass splitting and D meson masses are also presented.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/189f649ed2fbd1f51552571d0cf8fda6e6c95f48
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
Citations in the corpus
- Baryons with two heavy quarks: Masses, production, decays, and detection (2014, unknown): “+ Bethe-Salpeter [62] 4260± 190 QCD sum rules [63] 3608(15)((13) 35), 3595(12)((21) 22) Quenched lattice [64] 3549(13)(19)(92) Quenched lattice [65] 3665± 17± 14 −78 Lattice, domain-wall + KS fermions [66] 3603(15)(16) Lattice, Nf = 2 + 1 [67] 3513(23)(14) LGT, twisted mass ferm.”
- New results on B→π,K,η decay form factors from light-cone sum rules (2004, unknown): “This quantity has been investigated again recently [27], but the results, obtained in quenched approximation, are still preliminary.”
- Decay constants and form factors of s-wave and p-wave mesons in the covariant light-front quark model (2011, background): “Note that the recent quenched and unquenched lattice calculations all favor a scalar glueball mass close to 1700 MeV [49].”
- The hidden-charm pentaquark and tetraquark states (2016, background): “They discussed the previous studies of hybrid meson decays [724, 727] and the mass predictions for charmonium hybrids in the flux-tube model [729, 730], the UKQCD quenched lattice QCD [731, 732, 733] and quenched lattice NRQCD [734, 735].”
- Observation of string breaking in QCD (2005, unknown): “[71,72] to our quark mass, m-=mV 0:704 5 , we obtain the value mB 0:540 10 a 1 at 3 6:2 where r0 7:30 4 a.”
- theta dependence of SU(N) gauge theories in the presence of a topological term (2007, unknown): “[110,112, 162,163,170,248,249,269,310,317,378,379,425,429,471,479–481,496] (SU(2) gauge theories), [109,133,162, 209,285,288,301,314,399,468,471,482,484,523] (SU(3) gauge theories), [153,183,184,353,355,357] (SU(N) gauge theories), [29, 75, 116,117,314] (CP / O(3) models).”
- Novel quark-field creation operator construction for hadronic physics in lattice QCD (2009, methodology): “[10] introduced the Jacobi smearing algorithm, in which a lattice approximation to the three-dimensional gauge-covariant Laplacian is constructed and applied iteratively to the field.”