Unitarity corrections to K+ -> pi+ gamma l+l-

Abstract

We perform a chiral one-loop calculation of the unitarity corrections to the processes K+ -> pi+ gamma l+l- up to O(E^6), taking into account pi+pi- intermediate states. Branching ratios and differential branching ratios are computed and presented to demonstrate the importance of the above corrections.

18 pages, 13 eps figures. LaTeX, uses epsfig.sty. Version accepted for publication on Phys. Rev. D. Misprints corrected

References in corpus (5)

• The Decays $K\to \pi {\ell }^{+}{\ell }^{-}$ beyond Leading Order in the Chiral Expansion
• Observation of the Decay K^+ --> pi^+ gamma gamma
• K_L -> pi0 gamma e+ e- and its relation to CP and chiral tests
• Chiral predictions for K_L -> pi0 gamma mu+ mu-
• Status of the KTeV Experiment at Fermilab

Cited by in corpus (5)

• Kaon Decays in the Standard Model
• First Observation and Measurement of the Decay K+- -> pi+- e+ e- gamma
• Long-distance contribution to the forward-backward asymmetry in decays K+ --> pi+ l+ l-
• Radiative modes $K^{+}\to {\pi }^{+}{\gamma }^{\ast }{\gamma }^{(\ast )}$ and the $K^{+}\to {\pi }^{+}4e$ decay
• $K\to \pi {\gamma }^{\ast }{\gamma }^{\ast }$ transitions at leading order and beyond