Wave function effects and the elastic magnetic form factor ofO17

1991 ◽  
Vol 44 (1) ◽  
pp. 203-208 ◽  
Author(s):  
S. A. Coon ◽  
L. Jaqua
Keyword(s):  
Wave Function ◽  
Form Factor ◽  
Magnetic Form Factor

MAGNETIC FORM FACTOR OF NpAs2 : A CRYSTAL FIELD WAVE FUNCTION FOR 5f ELECTRONS ?

1982 ◽  
Vol 43 (C7) ◽  
pp. C7-293-C7-299 ◽  
Author(s):  
G. Amoretti ◽  
A. Blaise ◽  
M. Bonnet ◽  
J. X. Boucherle ◽  
A. Delapalme ◽  
...  
Keyword(s):  
Wave Function ◽  
Form Factor ◽  
Crystal Field ◽  
Magnetic Form Factor ◽  
5F Electrons ◽  
Field Wave

MAGNETIC FORM FACTOR MEASUREMENTS IN CERIUM HEXABORIDE

1982 ◽  
Vol 43 (C7) ◽  
pp. C7-273-C7-278 ◽  
Author(s):  
P. Burlet ◽  
J. X. Boucherle ◽  
J. Rossat-Mignod ◽  
J. W. Cable ◽  
W. C. Koehler ◽  
...  
Keyword(s):  
Form Factor ◽  
Magnetic Form Factor

Neutron scattering by oxygen gas and the magnetic form-factor of the oxygen molecule

1984 ◽  
Vol 53 (3) ◽  
pp. 557-566 ◽  
Author(s):  
M. Deraman ◽  
J.C. Dore ◽  
J.G. Powles ◽  
J. Schweizer
Keyword(s):  
Form Factor ◽  
Neutron Scattering ◽  
Magnetic Form Factor ◽  
Oxygen Molecule ◽  
Oxygen Gas

scholarly journals POSITRONIUM DECAY: GAUGE INVARIANCE AND ANALYTICITY

2002 ◽  
Vol 17 (10) ◽  
pp. 1355-1398 ◽  
Author(s):  
J. PESTIEAU ◽  
C. SMITH ◽  
S. TRINE
Keyword(s):  
Wave Function ◽  
Form Factor ◽  
Binding Energy ◽  
Gauge Invariance ◽  
Dispersion Relations ◽  
Decay Rates ◽  
Effective Form ◽  
Theoretical Predictions ◽  
Positronium Decay ◽  
Analysis Of Binding Energy

The construction of positronium decay amplitudes is handled through the use of dispersion relations. In this way, emphasis is put on basic QED principles: gauge invariance and soft-photon limits (analyticity).A firm grounding is given to the factorization approaches, and some ambiguities in the spin and energy structures of the positronium wave function are removed. Nonfactorizable amplitudes are naturally introduced. Their dynamics are described, especially regarding the enforcement of gauge invariance and analyticity through delicate interferences. The important question of the completeness of the present theoretical predictions for the decay rates is then addressed. Indeed, some of those nonfactorizable contributions are unaccounted for by NRQED analyses. However, it is shown that such new contributions are highly suppressed, being of [Formula: see text].Finally, a particular effective form factor formalism is constructed for parapositronium, allowing a thorough analysis of binding energy effects and analyticity implementation.

Sign in / Sign up

Export Citation Format

Share Document