Breit-Wigner parameters of the S 11(1535) nucleon resonance
نویسندگان
چکیده
منابع مشابه
On Gauge Invariance of Breit-wigner Propagators
We present an approach to bosonic (Z,W) as well as fermionic (top-quark) Breit-Wigner propagators which is consistent with gauge invariance arguments. In particular, for the Z-boson propagator we extend previous analyses and show that the part proportional to kμkν/M 2 must be modified near the resonance. We derive a mass shift which agrees with results obtained elsewhere by different methods. T...
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ژورنال
عنوان ژورنال: Physics of Atomic Nuclei
سال: 2004
ISSN: 1063-7788,1562-692X
DOI: 10.1134/1.1777293