Pion Electromagnetic Form Factor at Spacelike Momenta
نویسندگان
چکیده
منابع مشابه
Pion electromagnetic form factor at finite temperature.
Temperature effects on the electromagnetic couplings of pions in hot hadronic matter are studied with an effective chiral Lagrangian. We show that the Ward-Takahashi identity is satisfied at non-zero temperature in the soft pion limit. The in-medium electromagnetic form factor of the pion is obtained in the time-like region and shown to be reduced in magnitude, especially near the vector-meson ...
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The pionic contribution to the g−2 of the muon involves a certain integral over the modulus squared of Fπ(t), the electromagnetic form factor of the pion. We extend techniques that use cut-plane analyticity properties of Fπ(t) in order to account for present day estimates of the pionic contribution and experimental information at a finite number of points in the spacelike region. Using data fro...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2013
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.111.141802