Effect of neutron-proton mass difference on charge symmetry breaking in neutron-proton elastic scattering

1987 ◽  
Vol 36 (6) ◽  
pp. 2442-2449 ◽  
Author(s):  
M. J. Iqbal ◽  
J. Thaler ◽  
R. M. Woloshyn
Keyword(s):  
Elastic Scattering ◽  
Symmetry Breaking ◽  
Mass Difference ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Proton Elastic Scattering ◽  
Proton Mass

CHARGE SYMMETRY BREAKING IN pn → dπ0

2011 ◽  
Vol 26 (03n04) ◽  
pp. 592-594
Author(s):  
ARSENIY A. FILIN
Keyword(s):  
Symmetry Breaking ◽  
Cross Section ◽  
Mass Difference ◽  
Leading Order ◽  
Charge Symmetry Breaking ◽  
Chiral Perturbation ◽  
Charge Symmetry ◽  
Sum Rule ◽  
Proton Mass ◽  
Complete Calculation

We study charge symmetry breaking (CSB) in the reaction pn → dπ0. CSB manifests itself in a forward-backward asymmetry of the differential cross section measured recently at TRIUMF. A complete calculation of CSB effects at leading order in chiral perturbation theory is performed. A new leading-order operator is included. This allows us to extract the strong contribution to the neutron-proton mass difference from the analysis. The value obtained is consistent with the result of Gasser and Leutwyler based on the Cottingham sum rule and with an extraction from lattice QCD.

scholarly journals Extraction of the strong neutron–proton mass difference from the charge symmetry breaking in pn→dπ0

2009 ◽  
Vol 681 (5) ◽  
pp. 423-427 ◽  
Author(s):  
A. Filin ◽  
V. Baru ◽  
E. Epelbaum ◽  
J. Haidenbauer ◽  
C. Hanhart ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Mass Difference ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Proton Mass

Charge-symmetry breaking in neutron-proton elastic scattering

1987 ◽  
Vol 36 (5) ◽  
pp. 1956-1967 ◽  
Author(s):  
A. G. Williams ◽  
A. W. Thomas ◽  
G. A. Miller
Keyword(s):  
Elastic Scattering ◽  
Symmetry Breaking ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Proton Elastic Scattering

Charge symmetry breaking and the neutron-proton mass difference

1993 ◽  
Vol 562 (4) ◽  
pp. 644-658 ◽  
Author(s):  
Thomas Schäfer ◽  
Volker Koch ◽  
Gerald E. Brown
Keyword(s):  
Symmetry Breaking ◽  
Mass Difference ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Proton Mass

Charge-Symmetry Breaking in Neutron-Proton Elastic Scattering

1986 ◽  
Vol 56 (24) ◽  
pp. 2567-2570 ◽  
Author(s):  
G. A. Miller ◽  
A. W. Thomas ◽  
A. G. Williams
Keyword(s):  
Elastic Scattering ◽  
Symmetry Breaking ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Proton Elastic Scattering

SUBSTRUCTURE EFFECT ON ρ-ω MIXING IN CHARGE-SYMMETRY VIOLATION

1992 ◽  
Vol 07 (32) ◽  
pp. 3037-3043 ◽  
Author(s):  
T. GOLDMAN ◽  
J.A. HENDERSON ◽  
A.W. THOMAS
Keyword(s):  
Symmetry Breaking ◽  
Quark Model ◽  
Quark Mass ◽  
Mass Shell ◽  
Mass Difference ◽  
Charge Symmetry Breaking ◽  
Symmetry Violation ◽  
Charge Symmetry ◽  
A Charge ◽  
Simple Quark Model

In generating a charge-symmetry breaking potential using ρ-ω mixing it is usually assumed that the mixing amplitude is constant (at the on-mass-shell value). Since the exchanged meson is actually far off-shell one must question the validity of this assumption. By constructing a simple quark model in which the mixing is generated by the u-d quark mass difference, we find that the assumption seems to be a very poor one.

Test for charge symmetry breaking in elastic scattering of π±-mesons by4He

1986 ◽  
Vol 36 (2) ◽  
pp. 248-252 ◽  
Author(s):  
M. Kh. Khankhasayev ◽  
F. Nichitiu ◽  
M. G. Sapozhnikov
Keyword(s):  
Elastic Scattering ◽  
Symmetry Breaking ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry

scholarly journals Measurement of charge symmetry breaking in np elastic scattering at 350 MeV

1995 ◽  
Author(s):  
R. Abegg ◽  
A. R. Berdoz ◽  
J. Birchall ◽  
J. R. Campbell ◽  
C. A. Davis ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Symmetry Breaking ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry
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