prikaz prve stranice dokumenta Nondecoupling of a terascale isosinglet quark and rare K and B decays
  Download
PDF 597.11 KB
Scientific paper - Original scientific paper
Nondecoupling of a terascale isosinglet quark and rare K and B decays
Physical Review D - Particles, Fields, Gravitation and Cosmology, 78 (2008), 1; 015014. https://doi.org/10.1103/PhysRevD.78.015014
Picek, Ivica; Radovčić, Branimir

Institutional repository: Repository of the Faculty of Science

Cite this document

Picek, I. & Radovčić, B. (2008). Nondecoupling of a terascale isosinglet quark and rare K and B decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 78. (1). doi: 10.1103/PhysRevD.78.015014

Picek, Ivica and Branimir Radovčić. "Nondecoupling of a terascale isosinglet quark and rare K and B decays." Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 78, no. 1, 2008. https://doi.org/10.1103/PhysRevD.78.015014

Picek, Ivica and Branimir Radovčić. "Nondecoupling of a terascale isosinglet quark and rare K and B decays." Physical Review D - Particles, Fields, Gravitation and Cosmology 78, no. 1 (2008). https://doi.org/10.1103/PhysRevD.78.015014

Picek, I. and Radovčić, B. (2008) 'Nondecoupling of a terascale isosinglet quark and rare K and B decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, 78(1). doi: 10.1103/PhysRevD.78.015014

Picek I, Radovčić B. Nondecoupling of a terascale isosinglet quark and rare K and B decays. Physical Review D - Particles, Fields, Gravitation and Cosmology [Internet]. 2008 [cited 2024 November 30];78(1). doi: 10.1103/PhysRevD.78.015014

I. Picek and B. Radovčić, "Nondecoupling of a terascale isosinglet quark and rare K and B decays", Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 78, no. 1, 2008. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:243141. [Accessed: 30 November 2024]

Metadata
Title (english)Nondecoupling of a terascale isosinglet quark and rare K and B decays
AuthorIvica Picek
AuthorBranimir Radovčić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We examine recent extensions of the standard model with an up-type vectorlike isosinglet T quark that mixes dominantly with the top quark. We take under scrutiny the nondecoupling effects which may reveal such a new heavy fermion through loop diagrams relevant for rare decays such as K→πν¯ν, B→π(K)ν¯ν, and Bs,d→μ+μ−. After demonstrating in detail the cancellation between the leading nondecoupling terms, we show that two residual forms ∼s2lnm2T and ∼s4m2T act in a complementary way, so that the maximal allowed values of the decay rates are practically independent of mT. While they correspond to ∼20% or ∼30% corrections to the SM rates for K→πν¯ν and B→π(K)ν¯ν, an increase by ∼50% for Bs,d→μ+μ− decays offers a possibility to reveal an additional isosinglet state by measurements of these decays at the Large Hadron Collider.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D - Particles, Fields, Gravitation and Cosmology
Numberingvol. 78, no. 1, 015014
p-ISSN1550-7998
e-ISSN1550-2368
DOIhttps://doi.org/10.1103/PhysRevD.78.015014
URN:NBNurn:nbn:hr:217:243141
Publication2008
ProjectNumber: 119-0982930-1016
Title (croatian): Elementarne čestice, teorija polja i kozmologija
Leader: Ivica Picek
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://link.aps.org/doi/10.1103/PhysRevD.78.015014
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2008) by the American Physical Society. Received 16 April 2008; published 18 July 2008.
Created on2019-10-19 18:09:52