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Title: Higgs-mediated K{yields}{pi}{nu}{nu} in the MSSM at large tan{beta}

Abstract

We analyze the impact of Higgs-mediated amplitudes on the rare decays K{sub L}{yields}{pi}{sup 0}{nu}{nu} and K{sup +}{yields}{pi}{sup +}{nu}{nu} in the MSSM with large tan{beta} and general flavor mixing. We point out that, going beyond the minimal flavor violation hypothesis, Z-penguin amplitudes generated by charged-Higgs exchange can induce sizable modifications of K{yields}{pi}{nu}{nu} rates. Interestingly, these effects scale as tan{sup 4}{beta} at the amplitude level. For large values of tan{beta}, this mechanism allows deviations from the SM expectations even for tiny (Cabibbo-Kobayashi-Maskawa-type) off-diagonal mixing terms in the right-handed squark sector.

Authors:
 [1];  [2]
  1. INFN, Laboratori Nazionali di Frascati, I-00044 Frascati (Italy)
  2. INFN, Sezione di Roma II and Dipartimento di Fisica, Universita di Roma 'Tor Vergata', I-00133 Rome (Italy)
Publication Date:
OSTI Identifier:
20776904
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 73; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.73.055017; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; HIGGS BOSONS; HIGGS MODEL; KAONS NEUTRAL LONG-LIVED; KAONS PLUS; KOBAYASHI-MASKAWA MATRIX; NEUTRINOS; PIONS PLUS; SEMILEPTONIC DECAY; STANDARD MODEL; SUPERSYMMETRY

Citation Formats

Isidori, Gino, and Paradisi, Paride. Higgs-mediated K{yields}{pi}{nu}{nu} in the MSSM at large tan{beta}. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.055017.
Isidori, Gino, & Paradisi, Paride. Higgs-mediated K{yields}{pi}{nu}{nu} in the MSSM at large tan{beta}. United States. https://doi.org/10.1103/PhysRevD.73.055017
Isidori, Gino, and Paradisi, Paride. 2006. "Higgs-mediated K{yields}{pi}{nu}{nu} in the MSSM at large tan{beta}". United States. https://doi.org/10.1103/PhysRevD.73.055017.
@article{osti_20776904,
title = {Higgs-mediated K{yields}{pi}{nu}{nu} in the MSSM at large tan{beta}},
author = {Isidori, Gino and Paradisi, Paride},
abstractNote = {We analyze the impact of Higgs-mediated amplitudes on the rare decays K{sub L}{yields}{pi}{sup 0}{nu}{nu} and K{sup +}{yields}{pi}{sup +}{nu}{nu} in the MSSM with large tan{beta} and general flavor mixing. We point out that, going beyond the minimal flavor violation hypothesis, Z-penguin amplitudes generated by charged-Higgs exchange can induce sizable modifications of K{yields}{pi}{nu}{nu} rates. Interestingly, these effects scale as tan{sup 4}{beta} at the amplitude level. For large values of tan{beta}, this mechanism allows deviations from the SM expectations even for tiny (Cabibbo-Kobayashi-Maskawa-type) off-diagonal mixing terms in the right-handed squark sector.},
doi = {10.1103/PhysRevD.73.055017},
url = {https://www.osti.gov/biblio/20776904}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 5,
volume = 73,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}