output
19912026
Showing 2003 · hep-phShow all

21 papers · 2 filters

hep-ph2003★ 1 cited

Learning the weak phase from B decays

Jonathan L. Rosner

The current status of some methods to determine the weak phase of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element using B decays is discussed, and comments are ma…

hep-ph2003★ 24 cited

Exotic states of matter in heavy meson decays

Jonathan L. Rosner

The potential of decays of mesons containing heavy quarks [including mesons and the ] for producing final states of matter with unusual quark configurations, such as $q…

hep-ph2003★ 253 cited

Top Quarks and Electroweak Symmetry Breaking in Little Higgs Models

Maxim Perelstein, Michael E. Peskin, Aaron Pierce

`Little Higgs' models, in which the Higgs particle arises as a pseudo-Goldstone boson, have a natural mechanism of electroweak symmetry breaking associated with the large value of…

hep-ph2003★ 4 cited

The renormalized B-meson light-cone distribution amplitude

Bjorn O. Lange

I discuss the renormalization-group equation governing the leading order light-cone distribution amplitude of the B-meson phi^B_+(omega,mu) and its exact analytic solution. The sol…

hep-ph2003★ 36 cited

Interpreting the time-dependent CP asymmetry in

Michael Gronau, Yuval Grossman, Jonathan L. Rosner

Flavor SU(3) is used for studying the time-dependent CP asymmetry in by relating this process to and . We calculate correlated bou…

hep-ph2003★ 83 cited

The B_s and D_s decay constants in 3 flavor lattice QCD

Matthew Wingate, Christine T. H. Davies, Alan Gray +2

Capitalizing on recent advances in lattice QCD, we present a calculation of the leptonic decay constants f_{B_s} and f_{D_s} that includes effects of one strange sea quark and two…

hep-ph2003★ 87 cited

Factorization and the Soft Overlap Contribution to Heavy-to-Light Form Factors

Bjorn O. Lange, Matthias Neubert

Using the formalism of soft-collinear effective theory, a complete separation of short- and long-distance contributions to heavy-to-light transition form factors at large recoil is…

hep-ph2003★ 201 cited

Fermions on an Interval: Quark and Lepton Masses without a Higgs

C. Csaki, C. Grojean, J. Hubisz +2

We consider fermions on an extra dimensional interval. We find the boundary conditions at the ends of the interval that are consistent with the variational principle, and explain w…

hep-ph2003★ 1 cited

Constraining the Unitarity Triangle with B -> K* gamma and B -> rho gamma

Stefan W. Bosch

We discuss the exclusive radiative decays B -> K* gamma and B -> rho gamma in QCD factorization within the Standard Model. The analysis is based on the heavy-quark limit of QCD. Ou…

hep-ph2003★ 4 cited

Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil

Bjorn O. Lange

We studied three-particle Fock state contributions to heavy-to-light form factors in the context of soft-collinear effective theory and found that they enter at leading power. Thes…

hep-ph2003★ 34 cited

External Operators and Anomalous Dimensions in Soft-Collinear Effective Theory

Thomas Becher, Richard J. Hill, Bjoern O. Lange +1

It has recently been argued that soft-collinear effective theory for processes involving both soft and collinear partons contains a new soft-collinear mode, which can communicate b…

hep-ph2003★ 56 cited

Soft-Collinear Messengers: A New Mode in Soft-Collinear Effective Theory

Thomas Becher, Richard J. Hill, Matthias Neubert

It is argued that soft-collinear effective theory for processes involving both soft and collinear partons, such as exclusive B-meson decays, should include a new mode in addition t…

hep-ph2003

Factorization and Sudakov Resummation in B -> gamma l nu

Stefan W. Bosch

We apply Soft-Collinear Effective Theory to prove at leading power in Lambda_QCD/m_b a factorization formula for the radiative leptonic decay B -> gamma l nu. Large logarithms ente…

hep-ph2003

A mixing-independent construction of the unitarity triangle

Matthias Neubert

The study of charmless hadronic two-body decays of B mesons is one of the most fascinating topics in B physics. A construction of the unitarity triangle based on such decays is pre…

hep-ph2003★ 444 cited

Towards a Realistic Model of Higgsless Electroweak Symmetry Breaking

Csaba Csaki, Christophe Grojean, Luigi Pilo +1

We present a 5D gauge theory in warped space based on a bulk SU(2)_L x SU(2)_R x U(1)_(B-L) gauge group where the gauge symmetry is broken by boundary conditions. The symmetry brea…

hep-ph2003★ 890 cited

QCD factorization for B->PP and B->PV decays

Martin Beneke, Matthias Neubert

A comprehensive study of exclusive hadronic B-meson decays into final states containing two pseudoscalar mesons (PP) or a pseudoscalar and a vector meson (PV) is presented. The dec…

hep-ph2003★ 39 cited

Helicity Formalism for Spin-2 Particles

T. Gleisberg, F. Krauss, K. Matchev +3

We develop the helicity formalism for spin-2 particles and apply it to the case of gravity in flat extra dimensions. We then implement the large extra dimensions scenario of Arkani…

hep-ph2003★ 9 cited

Gauge Theories on an Interval: Unitarity without a Higgs

C. Csaki, C. Grojean, H. Murayama +2

We consider extra dimensional gauge theories on an interval. We first review the derivation of the consistent boundary conditions (BC's) from the action principle. These BC's inclu…

hep-ph2003★ 161 cited

Renormalization-Group Evolution of the B-Meson Light-Cone Distribution Amplitude

Bjorn O. Lange, Matthias Neubert

An integro-differential equation governing the evolution of the leading-order B-meson light-cone distribution amplitude is derived. The anomalous dimension in this equation contain…

hep-ph2003★ 250 cited

Variations of Little Higgs Models and their Electroweak Constraints

C. Csaki, J. Hubisz, G. D. Kribs +2

We calculate the tree-level electroweak precision constraints on a wide class of little Higgs models including: variations of the Littlest Higgs SU(5)/SO(5), SU(6)/Sp(6), and SU(4)…

hep-ph2003★ 107 cited

Factorization and Sudakov Resummation in Leptonic Radiative B Decay

S. W. Bosch, R. J. Hill, B. O. Lange +1

Soft-collinear effective theory is used to prove factorization of the B->gamma+l+nu decay amplitude at leading power in Lambda/m_b, including a demonstration of the absence of non-…