scholarly journals Nucleon Mass from a Covariant Three-Quark Faddeev Equation

2010 ◽  
Vol 104 (20) ◽  
Author(s):  
G. Eichmann ◽  
R. Alkofer ◽  
A. Krassnigg ◽  
D. Nicmorus
Keyword(s):  
Faddeev Equation ◽  
Nucleon Mass

scholarly journals Chiral expansion of the nucleon mass to order O(q6)

2007 ◽  
Vol 649 (5-6) ◽  
pp. 390-393 ◽  
Author(s):  
Matthias R. Schindler ◽  
Dalibor Djukanovic ◽  
Jambul Gegelia ◽  
Stefan Scherer
Keyword(s):  
Chiral Expansion ◽  
Nucleon Mass

Solution of the relativistic three quark Faddeev equation in the Nambu-Jona-Lasinio (NJL) model

1993 ◽  
Vol 318 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Noriyoshi Ishii ◽  
Wolfgang Bentz ◽  
Koichi Yazaki
Keyword(s):  
Faddeev Equation ◽  
Njl Model

scholarly journals Proton tensor charges from a Poincaré-covariant Faddeev equation

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Qing-Wu Wang ◽  
Si-Xue Qin ◽  
Craig D. Roberts ◽  
Sebastian M. Schmidt
Keyword(s):  
Faddeev Equation

COSMIC ORIGIN OF QUANTIZATION

2004 ◽  
Vol 18 (04n05) ◽  
pp. 519-525 ◽  
Author(s):  
FRANCESCO CALOGERO
Keyword(s):  
Angular Momentum ◽  
Spatial Coherence ◽  
Simplified Model ◽  
Nucleon Mass ◽  
Universal Gravitation ◽  
Large Component ◽  
Missing Mass ◽  
Order Of Magnitude ◽  
The Universe ◽  
Cosmic Origin

An estimate is presented of the angular momentum associated with the stochastic cosmic tremor, which has been hypothesized to be caused by universal gravitation and by the granularity of matter, and to be itself the cause of quantization ("cosmic origin of quantization"). If that universal tremor has the spatial coherence which is instrumental in order that the estimated action associated with it have the order of magnitude of Planck's constant h, then the estimated order of magnitude of the angular momentum associated with it also has the same value. We moreover indicate how these findings (originally based on a simplified model of the Universe, as being made up only of particles having the nucleon mass) are affected (in fact, essentially unaffected) by the possible presence in the mass of the Universe of a large component made up of particles much lighter than nucleons ("dark", or "missing", mass).

scholarly journals The nucleon mass in Nf=2 lattice QCD: finite size effects from chiral perturbation theory

2004 ◽  
Vol 689 (3) ◽  
pp. 175-194 ◽  
Author(s):  
A. Ali Khan ◽  
T. Bakeyev ◽  
M. Göckeler ◽  
T.R. Hemmert ◽  
R. Horsley ◽  
...  
Keyword(s):  
Perturbation Theory ◽  
Lattice Qcd ◽  
Chiral Perturbation Theory ◽  
Size Effects ◽  
Finite Size ◽  
Nucleon Mass ◽  
Chiral Perturbation ◽  
Finite Size Effects

Remarks on the Nucleon Mass Difference

1967 ◽  
Vol 158 (5) ◽  
pp. 1600-1607
Author(s):  
J. Rix
Keyword(s):  
Mass Difference ◽  
Nucleon Mass

scholarly journals THE NUCLEON MASS AND PION-NUCLEON SIGMA TERM FROM A CHIRAL ANALYSIS OF Nf = 2 + 1 LATTICE QCD WORLD DATA

2014 ◽  
Vol 26 ◽  
pp. 1460089 ◽  
Author(s):  
L. ALVAREZ-RUSO ◽  
T. LEDWIG ◽  
M. J. VICENTE VACAS ◽  
J. MARTIN-CAMALICH
Keyword(s):  
Lattice Qcd ◽  
Degrees Of Freedom ◽  
Pion Mass ◽  
Nucleon Mass ◽  
A Value ◽  
Natural Size ◽  
Sigma Term ◽  
Pion Nucleon ◽  
Pion Mass Dependence ◽  
Energy Constants

Fits of the p4 covariant SU(2) baryon chiral perturbation theory to lattice QCD nucleon mass data from several collaborations for 2 and 2+1 flavors are presented. We consider contributions from explicit Δ(1232) degrees of freedom, finite volume and finite spacing corrections. We emphasize here on our Nf = 2 + 1 study. We obtain low-energy constants of natural size that are compatible with the rather linear pion-mass dependence of the nucleon mass observed in lattice QCD. We report a value of σπN = 41(5)(4) MeV in the 2 flavor case and σπN = 52(3)(8) MeV for 2+1 flavors.

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