Tau-decay determination of the strange quark mass

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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A determination of the strange quark mass for unquenched clover fermions using the AWI

10.22323/1.020.0078 ◽

2005 ◽

Author(s):

Roger Horsley ◽

Meinulf Gockeler ◽

Alan C. Irving ◽

Dirk Pleiter ◽

Paul E.L. Rakow ◽

...

Keyword(s):

Quark Mass ◽

Strange Quark ◽

Strange Quark Mass

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ON THE QCD SUM RULE DETERMINATION OF THE STRANGE QUARK MASS

International Journal of Modern Physics A ◽

10.1142/s0217751x0100756x ◽

2001 ◽

Vol 16 (supp01b) ◽

pp. 588-590 ◽

Cited By ~ 1

Author(s):

NELLO PAVER

Keyword(s):

Spectral Function ◽

Quark Mass ◽

Strange Quark ◽

Sum Rules ◽

Sum Rule ◽

Strange Quark Mass ◽

Current Quark Mass ◽

Current Quark

I briefly review recent QCD Sum Rules determinations of the strange current quark mass, based on the analysis of the two-point ΔS=1 scalar correlators and discuss, in particular, the role of resonances and non-resonant background in the spectral function.

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QCD determination of the strange-quark mass

Physics Letters B ◽

10.1016/0370-2693(91)91391-8 ◽

1991 ◽

Vol 253 (1-2) ◽

pp. 241-245 ◽

Cited By ~ 21

Author(s):

C.A. Dominguez ◽

C. van Gend ◽

N. Paver

Keyword(s):

Quark Mass ◽

Strange Quark ◽

Strange Quark Mass

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On the QCD sum rule determination of the strange quark mass

Physics Letters B ◽

10.1016/s0370-2693(97)00751-x ◽

1997 ◽

Vol 408 (1-4) ◽

pp. 340-346 ◽

Cited By ~ 63

Author(s):

P. Colangelo ◽

F. De Fazio ◽

G. Nardulli ◽

N. Paver

Keyword(s):

Quark Mass ◽

Strange Quark ◽

Sum Rule ◽

Strange Quark Mass

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Determination of the strange-quark mass from QCD pseudoscalar sum rules

Nuclear Physics B - Proceedings Supplements ◽

10.1016/s0920-5632(99)00185-1 ◽

1999 ◽

Vol 74 (1-3) ◽

pp. 313-316 ◽

Cited By ~ 5

Author(s):

C.A. Dominguez ◽

L. Pirovano ◽

K. Schilcher

Keyword(s):

Quark Mass ◽

Strange Quark ◽

Sum Rules ◽

Strange Quark Mass

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TESTING FLAVOR SYMMETRIES BY B-FACTORY

International Journal of Modern Physics A ◽

10.1142/s0217751x09047387 ◽

2009 ◽

Vol 24 (31) ◽

pp. 5831-5844 ◽

Cited By ~ 7

Author(s):

TAKESHI ARAKI ◽

JISUKE KUBO

Keyword(s):

Predictive Models ◽

Quark Mass ◽

Strange Quark ◽

Low Energy ◽

Quark Masses ◽

Strange Quark Mass ◽

Flavor Symmetries ◽

B Factory ◽

Discrete Family

The Cabibbo–Kobayashi–Maskawa (CKM) parameters are investigated in detail in recent predictive models which are based on low-energy non-Abelian discrete family symmetries. Some of the models can already be excluded at the present precision of the determination of the CKM parameters, while some of them seem to survive. We find that to make the uncertainties of the theoretical values comparable with the assumed uncertainties of ~1° and ~2° in ϕ2(α) and ϕ3(γ), respectively, at about 50 inverse atto barn achieved at a future B factory, it is necessary to reduce the uncertainties in the quark masses, especially that of the strange quark mass by more than 60%.

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