Nucleon electromagnetic and axial form factors with N$_\textrm{f}=2$ twisted mass fermions at the physical point

2016 ◽  
Author(s):  
Giannis Koutsou ◽  
Constantia Alexandrou ◽  
Martha Constantinou ◽  
Kyriakos Hadjiyiannakou ◽  
Karl Jansen ◽  
...  
Keyword(s):  
Form Factors ◽  
Physical Point ◽  
Twisted Mass ◽  
Axial Form

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 axial form factors using Nf=2 twisted mass fermions with a physical value of the pion mass

2017 ◽  
Vol 96 (5) ◽  
Author(s):  
C. Alexandrou ◽  
M. Constantinou ◽  
K. Hadjiyiannakou ◽  
K. Jansen ◽  
C. Kallidonis ◽  
...  
Keyword(s):  
Pion Mass ◽  
Form Factors ◽  
Twisted Mass ◽  
Axial Form

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 Nucleon electromagnetic form factors using lattice simulations at the physical point

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
C. Alexandrou ◽  
M. Constantinou ◽  
K. Hadjiyiannakou ◽  
K. Jansen ◽  
Ch. Kallidonis ◽  
...  
Keyword(s):  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Physical Point

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 THE NUCLEON'S MIRROR IMAGE: REVEALING THE STRANGE AND UNEXPECTED

2003 ◽  
Vol 18 (02n06) ◽  
pp. 75-84 ◽  
Author(s):  
R. D. MCKEOWN
Keyword(s):  
Form Factor ◽  
Electron Scattering ◽  
Strange Quark ◽  
Form Factors ◽  
Mirror Image ◽  
Vector Form ◽  
Electromagnetic Structure ◽  
Extensive Program ◽  
Axial Form ◽  
Insight Into

An extensive program of parity-violating electron scattering experiments is providing new insight into the structure of the nucleon. Measurement of the vector form factors enables a definitive study of potential strange quark-antiquark contributions to the nucleon's electromagnetic structure, including the magnetic moment and charge distribution. Recent experimental results have already indicated that effects of strangeness are much smaller than theoretically expected. In addition, the neutral axial form factor appears to display substantial corrections as one might expect from an anapole effect.

scholarly journals Chiral corrections to hyperon axial form factors

2008 ◽  
Vol 77 (9) ◽  
Author(s):  
Fu-Jiun Jiang ◽  
B. C. Tiburzi
Keyword(s):  
Form Factors ◽  
Axial Form
Sign in / Sign up

Export Citation Format

Share Document