CP violation in the semileptonic B14 decays (B±→π+π-l ±ν)

Choong Sun Kim, Jake Lee, W. Namgung

Research output: Contribution to journalArticle

Abstract

Direct CP violations in B14 decays (B±→π+π-l ±ν1) are investigated within the standard model (SM) and also in its extensions. In the decay processes, we include various excited states as intermediate states decaying to the final hadrons π+π-. The CP violation within the SM is induced by the interferences between intermediate resonances with different quark flavors. As extensions of the SM, we consider CP violations implemented through complex scalar-fermion couplings in the multi-Higgs doublet model and the scalar-leptoquark models. We calculate the CP-odd rate asymmetry and the optimal asymmetry. We find that the optimal asymmetry can be measured at the 1σ level with about 109B-meson pairs in the SM case and 103-107 pairs in the extended model case, for maximally allowed values of CP-odd parameters in each case.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume60
Issue number9
Publication statusPublished - 1999 Nov 1

Fingerprint

CP Violation
CP violation
Standard Model
Decay
Asymmetry
asymmetry
decay
Odd
Scalar
scalars
Excited States
Higgs
Mesons
hadrons
Fermions
Quarks
mesons
fermions
Interference
Model

All Science Journal Classification (ASJC) codes

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

@article{7a773e5df2da483998c803a58932a394,
title = "CP violation in the semileptonic B14 decays (B±→π+π-l ±ν)",
abstract = "Direct CP violations in B14 decays (B±→π+π-l ±ν1) are investigated within the standard model (SM) and also in its extensions. In the decay processes, we include various excited states as intermediate states decaying to the final hadrons π+π-. The CP violation within the SM is induced by the interferences between intermediate resonances with different quark flavors. As extensions of the SM, we consider CP violations implemented through complex scalar-fermion couplings in the multi-Higgs doublet model and the scalar-leptoquark models. We calculate the CP-odd rate asymmetry and the optimal asymmetry. We find that the optimal asymmetry can be measured at the 1σ level with about 109B-meson pairs in the SM case and 103-107 pairs in the extended model case, for maximally allowed values of CP-odd parameters in each case.",
author = "Kim, {Choong Sun} and Jake Lee and W. Namgung",
year = "1999",
month = "11",
day = "1",
language = "English",
volume = "60",
pages = "1--12",
journal = "Physical review D: Particles and fields",
issn = "1550-7998",
publisher = "American Physical Society",
number = "9",

}

CP violation in the semileptonic B14 decays (B±→π+π-l ±ν). / Kim, Choong Sun; Lee, Jake; Namgung, W.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 60, No. 9, 01.11.1999, p. 1-12.

Research output: Contribution to journalArticle

TY - JOUR

T1 - CP violation in the semileptonic B14 decays (B±→π+π-l ±ν)

AU - Kim, Choong Sun

AU - Lee, Jake

AU - Namgung, W.

PY - 1999/11/1

Y1 - 1999/11/1

N2 - Direct CP violations in B14 decays (B±→π+π-l ±ν1) are investigated within the standard model (SM) and also in its extensions. In the decay processes, we include various excited states as intermediate states decaying to the final hadrons π+π-. The CP violation within the SM is induced by the interferences between intermediate resonances with different quark flavors. As extensions of the SM, we consider CP violations implemented through complex scalar-fermion couplings in the multi-Higgs doublet model and the scalar-leptoquark models. We calculate the CP-odd rate asymmetry and the optimal asymmetry. We find that the optimal asymmetry can be measured at the 1σ level with about 109B-meson pairs in the SM case and 103-107 pairs in the extended model case, for maximally allowed values of CP-odd parameters in each case.

AB - Direct CP violations in B14 decays (B±→π+π-l ±ν1) are investigated within the standard model (SM) and also in its extensions. In the decay processes, we include various excited states as intermediate states decaying to the final hadrons π+π-. The CP violation within the SM is induced by the interferences between intermediate resonances with different quark flavors. As extensions of the SM, we consider CP violations implemented through complex scalar-fermion couplings in the multi-Higgs doublet model and the scalar-leptoquark models. We calculate the CP-odd rate asymmetry and the optimal asymmetry. We find that the optimal asymmetry can be measured at the 1σ level with about 109B-meson pairs in the SM case and 103-107 pairs in the extended model case, for maximally allowed values of CP-odd parameters in each case.

UR - http://www.scopus.com/inward/record.url?scp=17144398053&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144398053&partnerID=8YFLogxK

M3 - Article

VL - 60

SP - 1

EP - 12

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 9

ER -