Enhancement of ε′/ε in the SU(2)LXSU(2)RXU(1) model

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

Enhancement of ε′/ε in the SU(2)_LXSU(2)_RXU(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

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, 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
Pages (from-to)	550061-550065
Number of pages	5
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	66
Issue number	5
Publication status	Published - 2002 Sep 1

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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title = "Enhancement of ε′/ε in the SU(2)LXSU(2)RXU(1) model",

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, VCKM, 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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AU - Lee, Kang Young

AU - Park, Seong Chan

AU - Song, H. S.

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N2 - 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, VCKM, 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.

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, VCKM, 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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