Anomalous magnetic moment of the muon and Higgs-mediated flavor changing neutral currents
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsPublished 22 September 1998Open access
Shuquan Nie, Marc Sher
Citations25
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
Abstract
In the two-Higgs doublet extension of the standard model, flavor-changing\nneutral couplings arise naturally. In the lepton sector, the largest such\ncoupling is expected to be $\\mu-\\tau-\\phi#. We consider the effects of this\ncoupling on the anomalous magnetic moment of the muon. The resulting bound on\nthe coupling, unlike previous bounds, is independent of the value of other\nunknown couplings. It will be significantly improved by the upcoming E821\nexperiment at Brookhaven National Lab.\n
Keywords
Physics and Astronomy
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsNatural conservation laws for neutral currents
1,420 Citations1977Sheldon L. Glashow, Steven Weinberg
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsMass-matrix ansatz and flavor nonconservation in models with multiple Higgs doublets
467 Citations1987Ta-Pei Cheng, Marc Sher
It is shown that, if the basic Yukawa coupling matrices are of the Fritzsch form or some generalizations thereof, then the neutral flavor-changing couplings have a hierarchical structure given by the lower bound of the order of ${\ensuremath{\Delta}}_{\mathrm{ds}}$ times 1 TeV on the mass of the exchanged scalar from the neutral-kaon mass difference.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsPhenomenology of two Higgs doublet models with flavor-changing neutral currents
341 Citations1997David Atwood, Laura Reina +1 more
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsFlavor-changing scalar interactions
154 Citations1993Lawrence J. Hall, Steven Weinberg
It turns out that although flavor-changing reaction rates may be acceptably small in electroweak theories with several scalar doublets without imposing any special symmetries on the scalars themselves, such theories generically yield to much [ital CP] violation in the neutral kaon mass matrix.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsRare<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>decays, rare<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>τ</mml:mi></mml:math>decays, and grand unification
138 Citations1991Marc Sher, Y. Yuan
It is shown that rare {ital B] decays provide the strongest bounds, and that {ital no} useful information can be obtainedmore from rare {tau} decays, and it is urged to look for rare decay modes of the{ital B} in which a {Tau} is in the final state.
Physics Letters BFlavour changing neutral currents, weak-scale scalars and rare top decays
132 Citations1993Michael Luke, Martin J. Savage
Physical Review LettersFlavor-changing interactions mediated by scalars at the weak scale
130 Citations1992Aram Antaramian, Lawrence J. Hall +1 more
Several results follow if the interactions of new scalars possess approximate flavor symmetries, and present experimental bounds allow these exotic scalars to have a weak-scale mass.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsProbing flavor-changing top-charm-scalar interactions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">e</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">−</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>collisions
125 Citations1996David Atwood, Laura Reina +1 more
A two Higgs doublet model, without natural flavor conservation, is used to give an illustrative estimate for the rate for these reactions.
Physical Review LettersFlavor Changing Neutral Scalar Currents at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Colliders
75 Citations1995David Atwood, Laura Reina +1 more
Physics Letters BConstraining flavour changing neutral currents with B→μ+μ−
64 Citations1991Martin J. Savage
