5 Ju l 2 00 1 The Gauge Technique in QED 2 + 1 Yuichi Hoshino
نویسنده
چکیده
The Gauge Technique has been applied to QED2+1 in the quenched case with infrared subtraction. The behaviour of the fermion propagator near the threshold is then found to be S(p) → (γ · p+m) (p2 −m2) ( p2 −m2 2m2 ) exp(− 2 ), where ς = e2/(4πm) and this is gauge invariant except the exponential factor. We also find a spectral function in the Landau and Yennie like gauge. The propagators S(p) are expressed in terms of Φ(z, 1, ς) explicitly .The vacuum expectation value 〈
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he Gauge Technique has been applied to QED2+1 in the quenched case with infrared subtraction. The behaviour of the fermion propagator near the threshold is then found to be S(p) → (γ · p+m) (p −m) ( p −m 2m ) exp(− ης 2 ), where ς = e/(4πm) and this is gauge invariant except the exponential factor. We also find a spectral function in the Landau and Yennie like gauge. The propagators S(p) are ex...
متن کاملar X iv : h ep - t h / 01 07 21 9 v 6 7 A ug 2 00 1 The Gauge Technique in QED 2 + 1 Yuichi
The Gauge Technique has been applied to QED2+1 in the quenched case with infrared subtraction. The behaviour of the fermion propagator near the threshold is then found to be S(p) → (γ · p+m) (p −m) ( p −m 2m ) exp(− ης 2 ), where ς = e/(4πm) and this is gauge invariant except the exponential factor. We also find a spectral function in the Landau and Yennie like gauge. The propagators S(p) are e...
متن کاملar X iv : h ep - t h / 01 07 21 9 v 5 3 A ug 2 00 1 The Gauge Technique in QED 2 + 1
The Gauge Technique has been applied to QED2+1 in the quenched case with infrared subtraction. The behaviour of the fermion propagator near the threshold is then found to be S(p) → (γ · p+m) (p −m) ( p −m 2m ) exp(− ης 2 ), where ς = e/(4πm) and this is gauge invariant except the exponential factor. We also find a spectral function in the Landau and Yennie like gauge. The propagators S(p) are e...
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