Flavor structure of warped extra dimension models

Journal Article · Sat Jan 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.016002· OSTI ID:20705758

Agashe, Kaustubh; Perez, Gilad; Soni, Amarjit ^[1]

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1. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218-2686 (United States)

We recently showed that warped extra-dimensional models with bulk custodial symmetry and few TeV Kaluza-Klein (KK) masses lead to striking signals at B factories. In this paper, using a spurion analysis, we systematically study the flavor structure of models that belong to the above class. In particular we find that the profiles of the zero modes, which are similar in all these models, essentially control the underlying flavor structure. This implies that our results are robust and model independent in this class of models. We discuss in detail the origin of the signals in B physics. We also briefly study other new physics signatures that arise in rare K decays (K{yields}{pi}{nu}{nu}), in rare top decays [t{yields}c{gamma}(Z,gluon)], and the possibility of CP asymmetries in D{sup 0} decays to CP eigenstates such as K{sub S}{pi}{sup 0} and others. Finally we demonstrate that with light KK masses, {approx}3 TeV, the above class of models with anarchic 5D Yukawas has a 'CP problem' since contributions to the neutron electric dipole moment are roughly 20 times larger than the current experimental bound. Using AdS/CFT correspondence, these extra-dimensional models are dual to a purely 4D strongly coupled conformal Higgs sector thus enhancing their appeal.

• OSTI ID: 20705758
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 1; Other Information: DOI: 10.1103/PhysRevD.71.016002; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
AXIOMATIC FIELD THEORY
CONFORMAL INVARIANCE
CONTROL
CP INVARIANCE
D NEUTRAL MESONS
EIGENFUNCTIONS
EIGENSTATES
EIGENVALUES
ELECTRIC DIPOLE MOMENTS
FLAVOR MODEL
GLUONS
HIGGS BOSONS
HIGGS MODEL
KALUZA-KLEIN THEORY
KAONS
NEUTRONS
PARTICLE PRODUCTION
REST MASS
SEMILEPTONIC DECAY
SYMMETRY
T QUARKS
TEV RANGE
Z NEUTRAL BOSONS