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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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60 papers · 2 filters
Prospects of mass measurements for neutral MSSM Higgs bosons in the intense-coupling regime at a Linear Collider
E. Boos, V. Bunichev, A. Djouadi +1
We analyze the prospects for detecting the three neutral Higgs bosons of the Minimal Supersymmetric extension of the Standard Model in the intense-coupling regime at e+e- colliders…
Diagnostic Potential of Cosmic-Neutrino Absorption Spectroscopy
Gabriela Barenboim, Olga Mena Requejo, Chris Quigg
Annihilation of extremely energetic cosmic neutrinos on the relic-neutrino background can give rise to absorption lines at energies corresponding to formation of the electroweak ga…
Virtual effects of light gauginos and higgsinos: a precision electroweak analysis of split supersymmetry
Stephen P. Martin, Kazuhiro Tobe, James D. Wells
We compute corrections to precision electroweak observables in supersymmetry in the limit that scalar superpartners are very massive and decoupled. This leaves charginos and neutra…
Discovering an Invisibly Decaying Higgs at Hadron Colliders
Hooman Davoudiasl, Tao Han, Heather E. Logan
A Higgs boson lighter than 2 m_W that decays mostly into invisible channels (e.g., dark matter particles) is theoretically well-motivated. We study the prospects for discovery of s…
The Supersymmetric Origin of Matter
C. Balazs, M. Carena, A. Menon +2
The Minimal Supersymmetric extension of the Standard Model (MSSM) can provide the correct neutralino relic abundance and baryon number asymmetry of the universe. Both may be effici…
Heavy Quarkonium Physics
N. Brambilla, M. Krämer, R. Mussa +82
This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of t…
Probing Electroweak Top Quark Couplings at Hadron Colliders
U. Baur, A. Juste, L. H. Orr +1
We consider QCD t\bar{t}γand t\bar{t}Z production at hadron colliders as a tool to measure the ttγand ttZ couplings. At the Tevatron it may be possible to perform a first, albeit n…
Corrections to Quark Asymmetries at LEP
A. Freitas, K. Moenig
The most precise measurement of the weak mixing angle sin^2(theta) at LEP is from the forward-backward asymmetry e+e- --> bbbar at the Z-pole. In this note the QED and electroweak…
TeV-Scale String Resonances at Hadron Colliders
Piyabut Burikham, Terrance Figy, Tao Han
We construct tree-level four-particle open-string amplitudes relevant to dilepton and diphoton production at hadron colliders. We expand the amplitudes into string resonance (SR) c…
B-decays in the heavy-quark expansion
Thomas Becher
Progress in the theoretical description of B-meson decays, in particular decays to light hadrons, is reviewed. The factorization properties of such decays can be analyzed using the…
Theoretical Overview: The New Mesons
Chris Quigg
After commenting on the state of contemporary hadronic physics and spectroscopy, I highlight four areas where the action is: searching for the relevant degrees of freedom, mesons w…
Some Phenomenology of Intersecting D-Brane Models
Gordon L. Kane, Piyush Kumar, Joseph D. Lykken +1
We present some phenomenology of a new class of intersecting D-brane models. Soft SUSY breaking terms for these models are calculated in the u - moduli dominant SUSY breaking appro…
Effective Hamiltonian for Non-Leptonic |Delta F| = 1 Decays at NNLO in QCD
Martin Gorbahn, Ulrich Haisch
We compute the effective hamiltonian for non-leptonic |Delta F| = 1 decays in the standard model including next-to-next-to-leading order QCD corrections. In particular, we present…
Pair production of scalar leptoquarks at the LHC
M. Krämer, T. Plehn, M. Spira +1
Theoretical predictions for the production cross sections of leptoquarks at the CERN LHC are presented including higher-order QCD corrections. These corrections reduce the dependen…
Massless Gauge Bosons other than the Photon
Bogdan A. Dobrescu
Gauge bosons associated with unbroken gauge symmetries, under which all standard model fields are singlets, may interact with ordinary matter via higher-dimensional operators. A co…
Towards pair production near threshold with unstable particle effective theory
M. Beneke, N. Kauer, A. Signer +1
We illustrate the use of effective theory techniques to describe processes involving unstable particles close to resonance. First, we present the main ideas in the context of a sca…
Warped Fermions and Precision Tests
Marcela Carena, Antonio Delgado, Eduardo Ponton +2
We analyze the behavior of Standard Model matter propagating in a slice of AdS_5 in the presence of infrared-brane kinetic terms. Brane kinetic terms are naturally generated throug…
Electroweak Baryogenesis and New TeV Fermions
Marcela Carena, Ariel Megevand, Mariano Quiros +1
New fermions, strongly coupled to the Standard Model Higgs boson provide a well motivated extension of the Standard Model (SM). In this work we show that, once new physics at heavi…
Inflation model building in moduli space
Kenji Kadota, Ewan D. Stewart
A self-consistent modular cosmology scenario and its testability in view of future CMB experiments are discussed. Particular attention is drawn to the enhanced symmetric points in…
Shower Power: Isolating the Prompt Atmospheric Neutrino Flux Using Electron Neutrinos
John F. Beacom, Julián Candia
At high energies, the very steep decrease of the conventional atmospheric component of the neutrino spectrum should allow the emergence of even small and isotropic components of th…
Effect of inhomogeneities on the expansion rate of the Universe
Edward W. Kolb, Sabino Matarrese, Alessio Notari +1
While the expansion rate of a homogeneous isotropic Universe is simply proportional to the square-root of the energy density, the expansion rate of an inhomogeneous Universe also d…
Loop Corrections to Heavy-to-Light Form Factors and Evanescent Operators in SCET
Thomas Becher, Richard J. Hill
One-loop matching corrections are calculated for Soft-Collinear Effective Theory (SCET) operators relevant to the analysis of heavy-to-light meson form factors at large recoil. The…
Semileptonic decays of mesons in three-flavor lattice QCD
C. Aubin, C. Bernard, C. DeTar +17
We present the first three-flavor lattice QCD calculations for and semileptonic decays. Simulations are carried out using ensembles of unquenched gauge field…
Normal vs. Inverted Hierarchy in Type I Seesaw Models
Carl H. Albright
We demonstrate that, for every grand unified model based on a conventional type I seesaw mechanism leading to a normal light neutrino mass hierarchy, one can easily generate a corr…