Quark—scalar-diquark mass effects inJψdecays into baryon-antibaryon pairs

1993 ◽  
Vol 47 (9) ◽  
pp. 3967-3976 ◽  
Author(s):  
El-Hassan Kada ◽  
Joseph Parisi
Keyword(s):  
Mass Effects ◽  
Scalar Diquark

scholarly journals Quark mass effects in two-loop Higgs amplitudes

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Charalampos Anastasiou ◽  
Nicolas Deutschmann ◽  
Armin Schweitzer
Keyword(s):  
Quark Mass ◽  
Mass Effects

RETARDATION EFFECTS IN COVARIANT THREE-DIMENSIONAL BOUND STATE WAVE FUNCTIONS

2005 ◽  
Vol 14 (06) ◽  
pp. 931-947 ◽  
Author(s):  
F. PILOTTO ◽  
M. DILLIG
Keyword(s):  
Bound States ◽  
Three Dimensional ◽  
Bound State ◽  
Relative Energy ◽  
Wave Functions ◽  
Three Dimensions ◽  
State Wave ◽  
Scalar Diquark ◽  
Bound State Wave Function ◽  
Retardation Effects

We investigate the influence of retardation effects on covariant 3-dimensional wave functions for bound hadrons. Within a quark-(scalar) diquark representation of a baryon, the four-dimensional Bethe–Salpeter equation is solved for a 1-rank separable kernel which simulates Coulombic attraction and confinement. We project the manifestly covariant bound state wave function into three dimensions upon integrating out the non-static energy dependence and compare it with solutions of three-dimensional quasi-potential equations obtained from different kinematical projections on the relative energy variable. We find that for long-range interactions, as characteristic in QCD, retardation effects in bound states are of crucial importance.

SENSITIVE VIBRATIONAL FREQUENCIES: IV. MASS EFFECTS

1959 ◽  
Vol 37 (11) ◽  
pp. 1896-1902 ◽  
Author(s):  
J. K. Wilmshurst
Keyword(s):  
Molecular System ◽  
General Rule ◽  
Vibrational Frequencies ◽  
Mass Effects ◽  
Atomic Properties ◽  
Calculated Mass

The correlation of vibrational frequencies with atomic properties of substituent atoms in the molecular system is critically examined for reality in the light of possible mass effects. The general rule is formulated that only frequencies continuously characteristic of a grouping in the mass–frequency plot can be used in such correlations. Calculated mass–frequency plots are presented for the systems XC≡N, XC≡CX, XC≡CY, X2C=CX2, X2C=O, X2P=O, XCH3, X2CH2, X3CH.

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