Search for new physics in the semileptonic D(l4) decays, D (±)→ Kπl(±)ν

C. S. Kim, Jake Lee, W. Namgung

Research output: Contribution to journalArticle

Abstract

New physics effects through the direct CP violation and the decay rate change are investigated in the semileptonic D(l)4 decays, D±→ Kπl±ν, by including a scalar-exchange interaction with a complex coupling. In the decay process, we included various excited states as intermediate states decaying to the final hadrons, K+ τ, and found that among the intermediate states only the lowest state (K*) is dominant and the Other higher excited states are negligible, contrary to the B(l)4 decays. We also obtained constraints on the new complex coupling within the multi-Higgs doublet model and the scalar leptoquark models. (C) 2000 Published by Elsevier Science B.V.

Original languageEnglish
Pages (from-to)155-163
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume480
Issue number1-2
DOIs
Publication statusPublished - 2000 May 4

Fingerprint

physics
decay
scalars
CP violation
hadrons
decay rates
excitation
interactions

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

@article{4908782694a54b0c8a551378ee485c0e,
title = "Search for new physics in the semileptonic D(l4) decays, D (±)→ Kπl(±)ν",
abstract = "New physics effects through the direct CP violation and the decay rate change are investigated in the semileptonic D(l)4 decays, D±→ Kπl±ν, by including a scalar-exchange interaction with a complex coupling. In the decay process, we included various excited states as intermediate states decaying to the final hadrons, K+ τ, and found that among the intermediate states only the lowest state (K*) is dominant and the Other higher excited states are negligible, contrary to the B(l)4 decays. We also obtained constraints on the new complex coupling within the multi-Higgs doublet model and the scalar leptoquark models. (C) 2000 Published by Elsevier Science B.V.",
author = "Kim, {C. S.} and Jake Lee and W. Namgung",
year = "2000",
month = "5",
day = "4",
doi = "10.1016/S0370-2693(00)00355-5",
language = "English",
volume = "480",
pages = "155--163",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1-2",

}

Search for new physics in the semileptonic D(l4) decays, D (±)→ Kπl(±)ν. / Kim, C. S.; Lee, Jake; Namgung, W.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 480, No. 1-2, 04.05.2000, p. 155-163.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for new physics in the semileptonic D(l4) decays, D (±)→ Kπl(±)ν

AU - Kim, C. S.

AU - Lee, Jake

AU - Namgung, W.

PY - 2000/5/4

Y1 - 2000/5/4

N2 - New physics effects through the direct CP violation and the decay rate change are investigated in the semileptonic D(l)4 decays, D±→ Kπl±ν, by including a scalar-exchange interaction with a complex coupling. In the decay process, we included various excited states as intermediate states decaying to the final hadrons, K+ τ, and found that among the intermediate states only the lowest state (K*) is dominant and the Other higher excited states are negligible, contrary to the B(l)4 decays. We also obtained constraints on the new complex coupling within the multi-Higgs doublet model and the scalar leptoquark models. (C) 2000 Published by Elsevier Science B.V.

AB - New physics effects through the direct CP violation and the decay rate change are investigated in the semileptonic D(l)4 decays, D±→ Kπl±ν, by including a scalar-exchange interaction with a complex coupling. In the decay process, we included various excited states as intermediate states decaying to the final hadrons, K+ τ, and found that among the intermediate states only the lowest state (K*) is dominant and the Other higher excited states are negligible, contrary to the B(l)4 decays. We also obtained constraints on the new complex coupling within the multi-Higgs doublet model and the scalar leptoquark models. (C) 2000 Published by Elsevier Science B.V.

UR - http://www.scopus.com/inward/record.url?scp=17644443398&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17644443398&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)00355-5

DO - 10.1016/S0370-2693(00)00355-5

M3 - Article

AN - SCOPUS:17644443398

VL - 480

SP - 155

EP - 163

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-2

ER -