Long Distance Contribution to at O(p4) in ChPT | Zendy

C. Geng | Zendy; I. J. Hsu | Zendy; C. W. Wang | Zendy

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Long Distance Contribution to at O(p4) in ChPT

Author(s) -

C. Geng,

I. J. Hsu,

C. W. Wang

Publication year - 1999

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.101.937

Subject(s) - physics , chiral perturbation theory , factorization , lagrangian , loop (graph theory) , tree (set theory) , particle physics , mathematical physics , quantum chromodynamics , combinatorics , mathematics , algorithm

[[abstract]]We calculate the long distance contributions to K+→π+νν¯ within the framework of chiral perturbation theory (ChPT). We derive a general form of the weak Lagrangian of O(p4) in the chiral expansion from the factorization model. We estimate the decay branching ratio of K+→π+νν¯ at the level of O(p4) for both tree and complete one-loop contributions, and compare our results with those in the literature[[fileno]]2010129010128[[department]]物理

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