Current s-quark mass corrections to the form factors of D-meson semileptonic decays

Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f0 and f+ for the semileptonic Bs → Kℓv decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m’l is one-tenth the strange quark mass m’s. At the intermediate lattice spacing, the ratio m’l/m’s ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |Vub|.

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Vector meson form factors and their quark-mass dependence

Physical Review C ◽

10.1103/physrevc.77.025203 ◽

2008 ◽

Vol 77 (2) ◽

Cited By ~ 91

Author(s):

M. S. Bhagwat ◽

P. Maris

Keyword(s):

Vector Meson ◽

Quark Mass ◽

Form Factors ◽

Mass Dependence ◽

Quark Mass Dependence

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Heavy-quark-mass expansion of vector and tensor currents and intrinsic charm in nucleon form factors

Journal of High Energy Physics ◽

10.1007/jhep01(2016)092 ◽

2016 ◽

Vol 2016 (1) ◽

Cited By ~ 4

Author(s):

Maxim V. Polyakov ◽

Jan Sieverding

Keyword(s):

Heavy Quark ◽

Quark Mass ◽

Form Factors ◽

Intrinsic Charm ◽

Heavy Quark Mass ◽

Nucleon Form Factors ◽

Mass Expansion

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Form factors of semileptonic decays of heavy mesons in the quark confinement model

Physical Review D ◽

10.1103/physrevd.46.3817 ◽

1992 ◽

Vol 46 (9) ◽

pp. 3817-3831 ◽

Cited By ~ 10

Author(s):

M. A. Ivanov ◽

O. E. Khomutenko ◽

T. Mizutani

Keyword(s):

Form Factors ◽

Semileptonic Decays ◽

Quark Confinement ◽

Heavy Mesons ◽

Confinement Model

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Semileptonic Decays ofB(Bs)to Light Tensor Mesons

Advances in High Energy Physics ◽

10.1155/2016/2352041 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 1

Author(s):

Reza Khosravi ◽

S. Sadeghi

Keyword(s):

Sum Rules ◽

Form Factors ◽

Semileptonic Decays ◽

Branching Ratios ◽

Quark Condensate ◽

Qcd Sum Rules ◽

Frame Work ◽

The Continuum

The semileptonicBs(B)→K2⁎(a2,f2)lν,l=τ,μ, transitions are investigated in the frame work of the three-point QCD sum rules. Considering the quark condensate contributions, the relevant form factors of these transitions are estimated. The branching ratios of these channel modes are also calculated at different values of the continuum thresholds of the tensor mesons and compared with the obtained data for other approaches.

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