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19912026
Showing 2007 · hep-phShow all

13 papers · 2 filters

hep-ph2007★ 31 cited

The physical meaning of scattering matrix singularities in coupled-channel formalisms

S. Capstick, A. Svarc, L. Tiator +8

The physical meaning of bare and dressed scattering matrix singularities has been investigated. Special attention has been attributed to the role of well known invariance of scatte…

hep-ph2007★ 107 cited

Nuclear PDFs from neutrino deep inelastic scattering

I. Schienbein, J. Y. Yu, C. Keppel +3

We study nuclear effects in charged current deep inelastic neutrino-iron scattering in the frame-work of a chi^2 analysis of parton distribution functions. We extract a set of iron…

hep-ph2007★ 14 cited

Evidence for a J/psi-ppbar Pauli Strong Coupling ?

T. Barnes, X. Li, W. Roberts

The couplings of charmonia and charmonium hybrids (generically Psi) to ppbar are of great interest in view of future plans to study these states using an antiproton storage ring at…

hep-ph2007★ 20 cited

A Bayesian analysis of pentaquark signals from CLAS data

The CLAS Collaboration, D. G. Ireland

We examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a pentaquark, whilst the other found no such evidence. The unique fe…

hep-ph2007★ 46 cited

U(1)' solution to the mu-problem and the proton decay problem in supersymmetry without R-parity

Hye-Sung Lee, Konstantin T. Matchev, Ting T. Wang

The Minimal Supersymmetric Standard Model (MSSM) is plagued by two major fine-tuning problems: the mu-problem and the proton decay problem. We present a simultaneous solution to bo…

hep-ph2007★ 25 cited

Mixed Higgsino Dark Matter from a Large SU(2) Gaugino Mass

Howard Baer, Azar Mustafayev, Heaya Summy +1

We observe that in SUSY models with non-universal GUT scale gaugino mass parameters, raising the GUT scale SU(2) gaugino mass |M_2| from its unified value results in a smaller valu…

hep-ph2007★ 27 cited

Implications of Compressed Supersymmetry for Collider and Dark Matter Searches

Howard Baer, Andrew Box, Eun-Kyung Park +1

Martin has proposed a scenario dubbed ``compressed supersymmetry'' (SUSY) where the MSSM is the effective field theory between energy scales M_{\rm weak} and M_{\rm GUT}, but with…

hep-ph2007★ 78 cited

N* and Delta* decays into N pi0 pi0

U. Thoma, M. Fuchs, A. V. Anisovich +45

Decays of baryon resonances in the second and the third resonance region into N pi0 pi0 are studied by photoproduction of two neutral pions off protons. Partial decay widths of N*…

hep-ph2007★ 112 cited

New results on the Roper resonance and the P_{11} partial wave

A. V. Sarantsev

Properties of the Roper resonance, the first scalar excitation of the nucleon, are determined. Pole positions and residues of the partial wave are studied in a combined an…

hep-ph2007★ 4 cited

Higgs boson production with one bottom quark including higher-order soft-gluon corrections

B. Field, C. B. Jackson, L. Reina

A Higgs boson produced in association with one or more bottom quarks is of great theoretical and experimental interest to the high-energy community. A precise prediction of its tot…

hep-ph2007★ 68 cited

Precision gluino mass at the LHC in SUSY models with decoupled scalars

Howard Baer, Vernon Barger, Gabe Shaughnessy +2

One way to ameliorate the SUSY flavor and CP problems is to postulate that scalar masses lie in the TeV or beyond regime. For example, the focus point (FP) region of the minimal su…

hep-ph2007★ 49 cited

Collider and Dark Matter Phenomenology of Models with Mirage Unification

Howard Baer, Eun-Kyung Park, Xerxes Tata +1

We examine supersymmetric models with mixed modulus-anomaly mediated SUSY breaking (MM-AMSB) soft terms which get comparable contributions to SUSY breaking from moduli-mediation an…

hep-ph2007★ 49 cited

The impact of new neutrino DIS and Drell-Yan data on large-x parton distributions

J. F. Owens, J. Huston, C. E. Keppel +5

New data sets have recently become available for neutrino and antineutrino deep inelastic scattering on nuclear targets and for inclusive dimuon production in pp pd interactions. T…