Top decays in extended models

Journal Article · Mon Apr 20 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3131554· OSTI ID:21300466

Gaitan, R ^[1]; Miranda, O G ^[2]; Cabral-Rosetti, L G ^[3]

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1. Centro de Investigaciones Teoricas, Facultad de Estudios Superiores-Cuautitlan, Universidad Nacional Auotonoma de Mexico, (FESC-UNAM). A. Postal 142, Cuautitlan-Izcalli, Estado de Mexico, C. P. 54700 (Mexico)
2. Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del IPN A. Postal 14-740, Mexico D. F. 07000 (Mexico)
3. Departamento de Posgrado, Centro Interdisciplinario de Investigacion y Docencia en Educacion Tecnica (CIIDET), Av. Universidad 282 Pte., Col. Centro, A. Postal 752, C. P. 76000, Santiago de Queretaro, Qro. (Mexico)

Top quark decays are interesting as a mean to test the Standard Model (SM) predictions. The Cabbibo-Kobayashi-Maskawa (CKM)-suppressed process t{yields}cWW, and the rare decays t{yields}cZ, t{yields}H{sup 0}+c, and t{yields}c{gamma} an excellent window to probe the predictions of theories beyond the SM. We evaluate the flavor changing neutral currents (FCNC) decay t{yields}H{sup 0}+c in the context of Alternative Left-Right symmetric Models (ALRM) with extra isosinglet heavy fermions; the FCNC decays may place at tree level and are only supressed by the mixing between ordinary top and charm quarks. We also comment on the decay process t{yields}c+{gamma}, which involves radiative corrections.

• OSTI ID: 21300466
• Journal Information: AIP Conference Proceedings, Vol. 1116, Issue 1; Conference: 13. Mexican school of particles and fields, Hermosillo (Mexico); San Carlos (Mexico), 2-11 Oct 2008; Other Information: DOI: 10.1063/1.3131554; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
C QUARKS
FLAVOR MODEL
HADRON-HADRON INTERACTIONS
KOBAYASHI-MASKAWA MATRIX
NEUTRAL CURRENTS
PARTICLE DECAY
PHOTONS
RADIATIVE CORRECTIONS
STANDARD MODEL
T QUARKS
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS