On a possible similarity between the heavy lepton and heavy constituent quark mass spectra

1979 ◽  
Vol 84 (1) ◽  
pp. 116-118 ◽  
Author(s):  
Stephen Blaha
Keyword(s):  
Quark Mass ◽  
Mass Spectra ◽  
Constituent Quark ◽  
Heavy Lepton ◽  
Constituent Quark Mass

CHIRAL QCD GENERATES CONSTITUENT QUARK MASSES

1988 ◽  
Vol 03 (16) ◽  
pp. 1595-1602 ◽  
Author(s):  
J. PRASCHIFKA ◽  
R.T. CAHILL ◽  
C.D. ROBERTS
Keyword(s):  
Form Factor ◽  
Quark Mass ◽  
Constituent Quark ◽  
Bound State ◽  
Variational Technique ◽  
Quark Masses ◽  
Constituent Quark Mass ◽  
Insight Into

Constituent quark masses are shown to arise naturally in an approximation to chiral QCD. The colour [Formula: see text] diquark component of the nucleon is studied using a new variational technique to solve a Bethe-Salpeter equation for this qq bound state in massless QCD. The resultant diquark form factor Γ(q) exhibits a dramatic peaking for (Euclidean) momentum q2≈(0.2 GeV )2 which, we show, signals the generation of a constituent quark mass of ≈270 MeV , and which provides a significant insight into deep inelastic leptonnucleon scattering results.

FROM PARTONS TO CONSTITUENT QUARKS

1991 ◽  
Vol 06 (22) ◽  
pp. 3933-3953
Author(s):  
D. INDUMATHI ◽  
M.V.N. MURTHY ◽  
V. RAVINDRAN
Keyword(s):  
Quark Mass ◽  
Constituent Quark ◽  
Mass Parameter ◽  
Equation Of Motion ◽  
Operator Product ◽  
Operator Matrix ◽  
Matrix Elements ◽  
Simple Manner ◽  
Proton Structure ◽  
Constituent Quark Mass

We discuss the moments of the proton structure functions F2(x) and g1(x) via the operator-product formalism. We introduce an effective mass for the quarks through an equation of motion. Making use of this, we show that successive moments of a structure function are related to one another in a simple manner. Specifically, the ratios of successive moments depend only on the square of the mass parameter so introduced, and not on the explicit operator matrix elements themselves. Experimental data on the moments indicate that this mass is around 300 MeV, of the order of the constituent quark mass. We strengthen our results by evaluating the moments in a bag model with massive nonstrange quarks.

Role of constituent quark mass in SM

2008 ◽  
Author(s):  
S. I. Sukhoruchkin ◽  
Sigfrido Boffi ◽  
Claudio Ciofi degli Atti ◽  
Mauro Giannini ◽  
Daniele Treleani
Keyword(s):  
Quark Mass ◽  
Constituent Quark ◽  
Constituent Quark Mass
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