Unitarity of loop diagrams for the ghostlike 1/(k2−M12)−1/(k2−M22) propagator
نویسندگان
چکیده
منابع مشابه
Threshold behavior of Feynman diagrams: the master two-loop propagator
An asymptotic expansion of the two-loop two-point “master” diagram with two masses m and M , on the mass shell Q = M, is presented. The treatment of the non-analytical terms arising in the expansion around the branching point is discussed. Some details of the calculation of a new class of two-loop integrals are given. E-mail: [email protected] E-mail: [email protected]
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2018
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.98.045014