scholarly journals Nucleon form factors from Nf=2+1+1 twisted mass fermions at the physical point

2019 ◽  
Author(s):  
Martha Constantinou ◽  
Constantia Alexandrou ◽  
Simone Bacchio ◽  
Kyriakos Hadjiyiannakou ◽  
Giannis Koutsou ◽  
...  
Keyword(s):  
Form Factors ◽  
Physical Point ◽  
Twisted Mass ◽  
Nucleon Form Factors

scholarly journals Erratum: Nucleon form factors and root-mean-square radii on a (10.8  fm)4 lattice at the physical point [Phys. Rev. D 99 , 014510 (2019)]

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Eigo Shintani ◽  
Ken-Ichi Ishikawa ◽  
Yoshinobu Kuramashi ◽  
Shoichi Sasaki ◽  
Takeshi Yamazaki ◽  
...  
Keyword(s):  
Root Mean Square ◽  
Form Factors ◽  
Mean Square ◽  
Physical Point ◽  
Nucleon Form Factors

scholarly journals Nucleon form factors on a large volume lattice near the physical point in 2+1 flavor QCD

2018 ◽  
Vol 98 (7) ◽  
Author(s):  
Ken-Ichi Ishikawa ◽  
Yoshinobu Kuramashi ◽  
Shoichi Sasaki ◽  
Natsuki Tsukamoto ◽  
Akira Ukawa ◽  
...  
Keyword(s):  
Large Volume ◽  
Form Factors ◽  
Physical Point ◽  
Nucleon Form Factors

scholarly journals Nucleon form factors near the physical point in 2+1 flavor QCD

2017 ◽  
Author(s):  
Yoshinobu Kuramashi ◽  
K.-I. Ishikawa ◽  
Shoichi Sasaki ◽  
Takeshi Yamazaki ◽  
N. Tsukamoto ◽  
...  
Keyword(s):  
Form Factors ◽  
Physical Point ◽  
Nucleon Form Factors

scholarly journals Nucleon form factors and moments of nucleon generalized parton distributions in twisted mass lattice QCD

2012 ◽  
Author(s):  
Martha Constantinou ◽  
Constantia Alexandrou ◽  
Christos Kallidonis ◽  
Tomasz Korzec ◽  
Mariane Brinet ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Form Factors ◽  
Parton Distributions ◽  
Generalized Parton Distributions ◽  
Twisted Mass ◽  
Nucleon Form Factors

scholarly journals Nucleon form factors and root-mean-square radii on a (10.8  fm)4 lattice at the physical point

2019 ◽  
Vol 99 (1) ◽  
Author(s):  
Eigo Shintani ◽  
Ken-Ichi Ishikawa ◽  
Yoshinobu Kuramashi ◽  
Shoichi Sasaki ◽  
Takeshi Yamazaki ◽  
...  
Keyword(s):  
Root Mean Square ◽  
Form Factors ◽  
Mean Square ◽  
Physical Point ◽  
Nucleon Form Factors

scholarly journals Connected and disconnected contributions to nucleon axial form factors using Nf = 2 twisted mass fermions at the physical point

2018 ◽  
Vol 175 ◽  
pp. 06003 ◽  
Author(s):  
Constantia Alexandrou ◽  
Martha Constantinou ◽  
Kyriakos Hadjiyiannakou ◽  
Karl Jansen ◽  
Christos Kallidonis ◽  
...  
Keyword(s):  
Ground State ◽  
Pion Mass ◽  
Charm Quark ◽  
Form Factors ◽  
Physical Point ◽  
Twisted Mass ◽  
Axial Form ◽  
Wilson Fermions ◽  
Quark Loops

We present results on the isovector and isoscalar nucleon axial form factors including disconnected contributions, using an ensemble of Nf = 2 twisted mass cloverimproved Wilson fermions simulated with approximately the physical value of the pion mass. The light disconnected quark loops are computed using exact deflation, while the strange and the charm quark loops are evaluated using the truncated solver method. Techniques such as the summation and the two-state fits have been employed to access ground-state dominance.

scholarly journals Nucleon form factors with dynamical twisted mass fermions

2009 ◽  
Author(s):  
Tomasz Korzec ◽  
Constantia Alexandrou ◽  
Giannis Koutsou ◽  
Mariane Brinet ◽  
Jaume Carbonell ◽  
...  
Keyword(s):  
Form Factors ◽  
Twisted Mass ◽  
Nucleon Form Factors

scholarly journals Nucleon structure from 2+1 flavor lattice QCD near the physical point

2018 ◽  
Vol 175 ◽  
pp. 06007 ◽  
Author(s):  
Natsuki Tsukamoto ◽  
Ken-Ichi Ishikawa ◽  
Yoshinobu Kuramashi ◽  
Shoichi Sasaki ◽  
Takeshi Yamazaki
Keyword(s):  
Lattice Spacing ◽  
Pion Mass ◽  
Axial Vector ◽  
Form Factors ◽  
Nucleon Structure ◽  
Matrix Elements ◽  
Physical Point ◽  
Nucleon Form Factors ◽  
Pseudo Scalar ◽  
Simulation Point

We present an update on our results of nucleon form factors measured on a large-volume lattice (8:1fm)4 at almost the physical point in 2+1 flavor QCD. The configurations are generated with the stout-smeared O(a) improved Wilson quark action and Iwasaki gauge action at β = 1:82, which corresponds to the lattice spacing of 0.085 fm. The pion mass at the simulation point is about 145 MeV. We determine the isovector electric radius and magnetic moment from nucleon electric (GE) and magnetic (GM) form factors. We also report on preliminary results of the axial-vector (FA), induced pseudo-scalar (FP) and pseudo-scalar (GP) form factors in order to verify the axial Ward-Takahashi identity in terms of the nucleon matrix elements, which may be called as the generalized Goldberger-Treiman relation.

scholarly journals Nucleon form factors using dynamical twisted mass fermions

2010 ◽  
Author(s):  
Constantia Alexandrou ◽  
Tomasz Korzec ◽  
Giannis Koutsou
Keyword(s):  
Form Factors ◽  
Twisted Mass ◽  
Nucleon Form Factors

Nucleon form factors with N[sub F] = 2 twisted mass fermions

2010 ◽  
Author(s):  
P. Guichon ◽  
R. Baron ◽  
C. Alexandrou ◽  
T. Korzec ◽  
G. Koutsou ◽  
...  
Keyword(s):  
Form Factors ◽  
Twisted Mass ◽  
Nucleon Form Factors
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