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Title: Atmospheric neutrino mixing and b{yields}s transitions: Testing lopsided SO(10) flavor structure in B physics

Abstract

We point out that the correlation between the large atmospheric neutrino mixing and the b{yields}s transition, if it exists, comes from the lopsided flavor structure in SO(10) grand unification theory. We suggest testing the correlation by studying the deviation of S{sub {phi}}{sub K{sub S}} and S{sub {eta}{sup '}}{sub K{sub S}} from the standard model predictions along with the constraints from {delta}M{sub B{sub S}} and b{yields}s{gamma} in a realistic SO(10) model with lopsided flavor structure. We find a specific correlation between S{sub {phi}}{sub K{sub S}}S and S{sub {eta}{sup '}}{sub K{sub S}} that is intrinsic to the lopsided structure and discuss how to confirm or rule out this flavor pattern by the more accurate measurements of these CP violation quantities in B decay.

Authors:
 [1];  [2];  [1];  [3]
  1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
  2. (China)
  3. Center for High-Energy Physics and Institute of Theoretical Physics, Peking University, Beijing 100080 (China)
Publication Date:
OSTI Identifier:
21020101
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.75.055016; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B MESONS; B QUARKS; CORRELATIONS; CP INVARIANCE; FLAVOR MODEL; NEUTRINOS; PARTICLE DECAY; S QUARKS; SO-10 GROUPS; STANDARD MODEL

Citation Formats

Ji Xiangdong, Center for High-Energy Physics and Institute of Theoretical Physics, Peking University, Beijing 100080, Li Yingchuan, and Zhang Yue. Atmospheric neutrino mixing and b{yields}s transitions: Testing lopsided SO(10) flavor structure in B physics. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.055016.
Ji Xiangdong, Center for High-Energy Physics and Institute of Theoretical Physics, Peking University, Beijing 100080, Li Yingchuan, & Zhang Yue. Atmospheric neutrino mixing and b{yields}s transitions: Testing lopsided SO(10) flavor structure in B physics. United States. doi:10.1103/PHYSREVD.75.055016.
Ji Xiangdong, Center for High-Energy Physics and Institute of Theoretical Physics, Peking University, Beijing 100080, Li Yingchuan, and Zhang Yue. Thu . "Atmospheric neutrino mixing and b{yields}s transitions: Testing lopsided SO(10) flavor structure in B physics". United States. doi:10.1103/PHYSREVD.75.055016.
@article{osti_21020101,
title = {Atmospheric neutrino mixing and b{yields}s transitions: Testing lopsided SO(10) flavor structure in B physics},
author = {Ji Xiangdong and Center for High-Energy Physics and Institute of Theoretical Physics, Peking University, Beijing 100080 and Li Yingchuan and Zhang Yue},
abstractNote = {We point out that the correlation between the large atmospheric neutrino mixing and the b{yields}s transition, if it exists, comes from the lopsided flavor structure in SO(10) grand unification theory. We suggest testing the correlation by studying the deviation of S{sub {phi}}{sub K{sub S}} and S{sub {eta}{sup '}}{sub K{sub S}} from the standard model predictions along with the constraints from {delta}M{sub B{sub S}} and b{yields}s{gamma} in a realistic SO(10) model with lopsided flavor structure. We find a specific correlation between S{sub {phi}}{sub K{sub S}}S and S{sub {eta}{sup '}}{sub K{sub S}} that is intrinsic to the lopsided structure and discuss how to confirm or rule out this flavor pattern by the more accurate measurements of these CP violation quantities in B decay.},
doi = {10.1103/PHYSREVD.75.055016},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 75,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}
  • The experimental study of B mesons suggest the existence of some new physics contribution to the B{sub s}{sup 0}-B{sub s}{sup 0} mixing. We study the implications of a hypothesis that this contribution is generated by the Higgs-induced flavor-changing neutral currents (FCNC). We concentrate on the specific b{yields}s transition which is described by two complex FCNC parameters, F{sub 23} and F{sub 32}, and parameters in the Higgs sector. Model-independent constraints on these parameters are derived from the B{sub s}{sup 0}-B{sub s}{sup 0} mixing and are used to predict the branching ratios for B{sub s{yields}{mu}}{sup +{mu}-} and B{sub d{yields}}K{mu}{sup +{mu}-} numerically bymore » considering general variations in the Higgs parameters assuming that Higgs sector conserves CP. Taking the results on B{sub s}{sup 0}-B{sub s}{sup 0} mixing derived by the global analysis of UTfit group as a guide we present the general constraints on F{sub 23}*F{sub 32} in terms of the pseudoscalar mass M{sub A}. The former is required to be in the range {approx}(1-5)x10{sup -11}M{sub A}{sup 2} GeV{sup -2} if the Higgs-induced FCNC represent the dominant source of new physics. The phases of these couplings can account for the large CP violating phase in the B{sub s}{sup 0}-B{sub s}{sup 0} mixing except when F{sub 23}=F{sub 32}. The Higgs contribution to B{sub s{yields}{mu}}{sup +{mu}-} branching ratio can be large, close to the present limit while it remains close to the standard model value in case of the process B{sub d{yields}}K{mu}{sup +{mu}-} for all the models under study. We identify and discuss various specific examples which can naturally lead to suppressed FCNC in the K{sup 0}-K{sup 0} mixing allowing at the same time the required values for F{sub 23}* and F{sub 32}.« less
  • From an analysis of the flavor-tagged decay B{sub s}{sup 0}{yields}J/{psi}{phi} we obtain the width difference between the B{sub s}{sup 0} light and heavy mass eigenstates, {delta}{gamma}{sub s}=0.19{+-}0.07(stat){sub -0.01}{sup +0.02}(syst) ps{sup -1}, and the CP-violating phase, {phi}{sub s}=-0.57{sub -0.30}{sup +0.24}(stat){sub -0.02}{sup +0.08}(syst). The allowed 90% CL intervals of {delta}{gamma}{sub s} and {phi}{sub s} are 0.06<{delta}{gamma}{sub s}<0.30 ps{sup -1} and -1.20<{phi}{sub s}<0.06, respectively. The data sample corresponds to an integrated luminosity of 2.8 fb{sup -1} accumulated with the D0 detector at the Fermilab Tevatron collider.
  • We study the constraints on supersymmetric contributions to b{yields}s transitions from the recent allowed range and measurement of B{sub s}-B{sub s} mixing obtained by the D0 and Collider Detector at Fermilab collaborations at the Tevatron. We compute the upper bounds on the relevant off-diagonal squark mass terms and compare them with the bounds coming from {delta}F=1 decays. We find that the constraints on chirality-flipping mass insertions are unaffected. Conversely, the measurement of B{sub s}-B{sub s} mixing is effective in constraining chirality-conserving mass insertions, and it has striking effects in the case in which left- and right-handed insertions have similar size.more » Finally, we discuss the phase of the B{sub s}-B{sub s} mixing amplitude in the presence of supersymmetric contributions.« less