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Title: Warped fermions and precision tests

Abstract

We analyze the behavior of standard model matter propagating in a slice of AdS{sub 5} in the presence of infrared-brane kinetic terms. Brane kinetic terms are naturally generated through radiative corrections and can also be present at tree level. The effect of the brane kinetic terms is to expel the heavy Kaluza-Klein (KK) modes from the infrared brane, and hence to reduce their coupling to the localized Higgs field. In a previous work we showed that sizable gauge kinetic terms can allow KK mode masses as low as a few TeV, compatible with present precision measurements. We study here the effect of fermion brane kinetic terms and show that they ameliorate the behavior of the theory for third generation fermions localized away from the infrared brane, reduce the contribution of the third generation quarks to the oblique correction parameters and maintain a good fit to the precision electroweak data for values of the KK masses of the order of the weak scale.

Authors:
 [1];  [2];  [1];  [1];  [3]
  1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States)
  2. Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218 (United States)
  3. HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
20705750
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 71; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.71.015010; (c) 2005 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; ACCURACY; COUPLING; HIGGS BOSONS; HIGGS MODEL; KALUZA-KLEIN THEORY; QUARKS; RADIATIVE CORRECTIONS; REST MASS; SPACE-TIME; STANDARD MODEL; TEV RANGE

Citation Formats

Carena, Marcela, Delgado, Antonio, TH-Division, CERN, 1211 Geneva, Ponton, Eduardo, Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027, Tait, Tim M.P., HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, C E.M., and Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637. Warped fermions and precision tests. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.71.015010.
Carena, Marcela, Delgado, Antonio, TH-Division, CERN, 1211 Geneva, Ponton, Eduardo, Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027, Tait, Tim M.P., HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, C E.M., & Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637. Warped fermions and precision tests. United States. doi:10.1103/PhysRevD.71.015010.
Carena, Marcela, Delgado, Antonio, TH-Division, CERN, 1211 Geneva, Ponton, Eduardo, Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027, Tait, Tim M.P., HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, C E.M., and Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637. Sat . "Warped fermions and precision tests". United States. doi:10.1103/PhysRevD.71.015010.
@article{osti_20705750,
title = {Warped fermions and precision tests},
author = {Carena, Marcela and Delgado, Antonio and TH-Division, CERN, 1211 Geneva and Ponton, Eduardo and Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027 and Tait, Tim M.P. and HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439 and Wagner, C E.M. and Enrico Fermi Institute, University of Chicago, 5640 Ellis Avenue, Chicago, Illinois 60637},
abstractNote = {We analyze the behavior of standard model matter propagating in a slice of AdS{sub 5} in the presence of infrared-brane kinetic terms. Brane kinetic terms are naturally generated through radiative corrections and can also be present at tree level. The effect of the brane kinetic terms is to expel the heavy Kaluza-Klein (KK) modes from the infrared brane, and hence to reduce their coupling to the localized Higgs field. In a previous work we showed that sizable gauge kinetic terms can allow KK mode masses as low as a few TeV, compatible with present precision measurements. We study here the effect of fermion brane kinetic terms and show that they ameliorate the behavior of the theory for third generation fermions localized away from the infrared brane, reduce the contribution of the third generation quarks to the oblique correction parameters and maintain a good fit to the precision electroweak data for values of the KK masses of the order of the weak scale.},
doi = {10.1103/PhysRevD.71.015010},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 71,
place = {United States},
year = {2005},
month = {1}
}