scholarly journals Determination of the strange quark content of the nucleon from a next-to-leading-order QCD analysis of neutrino charm production

1995 ◽  
Vol 65 (2) ◽  
pp. 189-198 ◽  
Author(s):  
◽  
A. O. Bazarko ◽  
C. G. Arroyo ◽  
K. T. Bachmann ◽  
T. Bolton ◽  
...  
Keyword(s):  
Strange Quark ◽  
Charm Production ◽  
Leading Order ◽  
Qcd Analysis ◽  
Quark Content

scholarly journals Bs → Kℓv form factors with 2+1 flavors

2018 ◽  
Vol 175 ◽  
pp. 13008 ◽  
Author(s):  
Yuzhi Liu ◽  
Jon A. Bailey ◽  
A. Bazavov ◽  
C. Bernard ◽  
C. M. Bouchard ◽  
...  
Keyword(s):  
Quark Mass ◽  
Strange Quark ◽  
Lattice Spacing ◽  
Light Quark ◽  
Form Factors ◽  
Ckm Matrix ◽  
Strange Quark Mass ◽  
Light Quark Mass ◽  
B Quark

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|.

The electric neutron form factor and the strange quark content of the nucleon

1992 ◽  
Vol 274 (2) ◽  
pp. 159-162 ◽  
Author(s):  
M.F. Gari ◽  
W. Krümpelmann
Keyword(s):  
Form Factor ◽  
Strange Quark ◽  
Quark Content

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

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

Determination of strange quark suppression in hadronic vacuum

1983 ◽  
Vol 17 (1) ◽  
pp. 85-93 ◽  
Author(s):  
P. K. Malhotra ◽  
R. Orava
Keyword(s):  
Strange Quark

scholarly journals Nucleon sigma term and strange quark content from lattice QCD with exact chiral symmetry

2008 ◽  
Vol 78 (5) ◽  
Author(s):  
H. Ohki ◽  
H. Fukaya ◽  
S. Hashimoto ◽  
T. Kaneko ◽  
H. Matsufuru ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Chiral Symmetry ◽  
Strange Quark ◽  
Sigma Term ◽  
Quark Content

scholarly journals DETERMINATION OF LIGHT QUARK MASSES IN QCD

2010 ◽  
Vol 25 (29) ◽  
pp. 5223-5234 ◽  
Author(s):  
C. A. DOMINGUEZ
Keyword(s):  
Strange Quark ◽  
Sum Rules ◽  
Standard Procedure ◽  
Light Quark ◽  
Qcd Sum Rules ◽  
Quark Masses ◽  
Systematic Uncertainties ◽  
Better Than ◽  
The Ideal

The standard procedure to determine (analytically) the values of the quark masses is to relate QCD two-point functions to experimental data in the framework of QCD sum rules. In the case of the light quark sector, the ideal Green function is the pseudoscalar correlator which involves the quark masses as an overall multiplicative factor. For the past thirty years this method has been affected by systematic uncertainties originating in the hadronic resonance sector, thus limiting the accuracy of the results. Recently, a major breakthrough has been made allowing for a considerable reduction of these systematic uncertainties and leading to light quark masses accurate to better than 8%. This procedure will be described in this talk for the up-, down-, strange-quark masses, after a general introduction to the method of QCD sum rules.

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