Enhancement of ε′/ε in the SU(2)L×SU(2) R×U(1) model

Ji Ho Jang; Kang Young Lee; Seong Chan Park; H. S. Song

doi:10.1103/PhysRevD.66.055006

Enhancement of ε′/ε in the SU(2)_L×SU(2) _R×U(1) model

Ji Ho Jang, Kang Young Lee, Seong Chan Park, H. S. Song

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We explore the possible enhancement of the direct CP-violating parameter ε′/ε in the general left-right model based on the SU(2) _L×SU(2)_R×U(1) gauge group. The mixing matrix of right-handed quarks, V_CKM^R. is observable in the left-right model, and provides a new source of the CP-violating phase. We calculate the parameter ε′/ε in the left-right model and show that the new phases from V_CKM^R can yield a sizable contribution to the direct CP violation, enough to satisfy the recent measurements of Re(ε′/ε) from Fermilab KTeV and CERN NA48 experiments.

Original language	English
Article number	055006
Journal	Physical Review D
Volume	66
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.66.055006
Publication status	Published - 2002

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.66.055006

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abstract = "We explore the possible enhancement of the direct CP-violating parameter ε′/ε in the general left-right model based on the SU(2) L×SU(2)R×U(1) gauge group. The mixing matrix of right-handed quarks, VCKMR. is observable in the left-right model, and provides a new source of the CP-violating phase. We calculate the parameter ε′/ε in the left-right model and show that the new phases from VCKMR can yield a sizable contribution to the direct CP violation, enough to satisfy the recent measurements of Re(ε′/ε) from Fermilab KTeV and CERN NA48 experiments.",

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AB - We explore the possible enhancement of the direct CP-violating parameter ε′/ε in the general left-right model based on the SU(2) L×SU(2)R×U(1) gauge group. The mixing matrix of right-handed quarks, VCKMR. is observable in the left-right model, and provides a new source of the CP-violating phase. We calculate the parameter ε′/ε in the left-right model and show that the new phases from VCKMR can yield a sizable contribution to the direct CP violation, enough to satisfy the recent measurements of Re(ε′/ε) from Fermilab KTeV and CERN NA48 experiments.

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Enhancement of ε′/ε in the SU(2)_L×SU(2) _R×U(1) model

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