Institute for High Energy Physics

output

19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2008Show all

221 papers · 1 filter

hep-ph2008★ 41 cited

Determination of Strange Sea Distributions from Neutrino-Nucleon Deep Inelastic Scattering

S. Alekhin, S. Kulagin, R. Petti

We present an analysis of the nucleon strange sea extracted from a global Parton Distribution Function fit including the neutrino and anti-neutrino dimuon data by the CCFR and NuTe…

hep-ex2008★ 252 cited

Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV

The CDF Collaboration, T. Aaltonen

We present a search for new particles whose decays produce two jets (dijets) using proton-antiproton collision data corresponding to an integrated luminosity of 1.13 fb-1 collected…

hep-ph2008★ 60 cited

Possible duality violations in tau decay and their impact on the determination of alpha_s

Oscar Cata, Maarten Golterman, Santiago Peris

We discuss the issue of duality violations in hadronic tau decay. After introducing a physically motivated ansatz for duality violations, we estimate their possible size by fitting…

hep-ph2008★ 2 cited

Estimate of the systematic error in tau decay due to duality violations

Oscar Cata, Maarten Golterman, Santiago Peris

With the help of a physically motivated ansatz, which is fitted to the data, we estimate the size of possible duality violations in hadronic tau decay. The result is that the uncer…

hep-lat2008★ 63 cited

Infrared behavior and Gribov ambiguity in SU(2) lattice gauge theory

V. G. Bornyakov, V. K. Mitrjushkin, M. Müller--Preussker

For SU(2) lattice gauge theory we study numerically the infrared behavior of the Landau gauge ghost and gluon propagators with the special accent on the Gribov copy dependence. App…

astro-ph2008★ 112 cited

The June 2008 flare of Markarian 421 from optical to TeV energies

The Agile Collaboration, Webt Collaboration, Magic Collaboration +2

We present optical, X-ray, high energy ( $⪅ 30$ GeV) and very high energy ( $⪆ 100$ GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken betwee…

hep-ph2008★ 22 cited

A Note on Unparticle Decays

A. Delgado, J. R. Espinosa, J. M. No +1

The coupling of an unparticle operator O_U to Standard Model particles opens up the possibility of unparticle decays into standard model fields. We study this issue by analyzing th…

hep-ph2008★ 1 cited

Nonlinear Regge Trajectories in Theory and Practice

V. A. Petrov

The problems related to nonlinear behavior of Regge trajectories (RT) and their renormalization group invariance are discussed.

hep-ph2008

Eta-eta' mixing from V->Pgamma and J/psi->VP decays

Rafel Escribano

The $η$ - $η^{'}$ pseudoscalar mixing angle and the gluonium content of the $η^{'}$ meson are deduced from an updated phenomenological analysis of $V \to P γ$ and $J / ψ \to V P$ dec…

hep-ex2008★ 27 cited

Top Quark Mass Measurement in the Lepton plus Jets Channel Using a Modified Matrix Element Method

CDF Collaboration, T. Aaltonen

We report a measurement of the top quark mass, m_t, obtained from ppbar collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron using the CDF II detector. We analyze a sample cor…

hep-ph2008★ 13 cited

Scalar resonances in a unitary $π - π$ $S$ -wave model for $D^{+} \to π^{+} π^{-} π^{+}$

D. R. Boito, J. -P. Dedonder, B. El-Bennich +2

We propose a model for $D^{+} \to π^{+} π^{-} π^{+}$ decays following experimental results which indicate that the two-pion interaction in the $S$ -wave is dominated by the scalar resonance…

hep-ex2008★ 66 cited

Search for top-quark production via flavor-changing neutral currents in W+1 jet events at CDF

CDF Collaboration, T. Aaltonen

We report on the first search for top-quark production via flavor-changing neutral-current (FCNC) interactions in the non-standard-model process u(c)+g -> t using ppbar collision d…

nucl-ex2008★ 52 cited

Observation of Two-source Interference in the Photoproduction Reaction $A u A u \to A u A u ρ^{0}$

B. I. Abelev

In ultra-peripheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nuc…

astro-ph2008★ 125 cited

Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing

MAGIC Collaboration

The Cherenkov light flashes produced by Extensive Air Showers are very short in time. A high bandwidth and fast digitizing readout, therefore, can minimize the influence of the bac…

astro-ph2008

Results of MAGIC on Galactic sources

Javier Rico

MAGIC is a single-dish Cherenkov telescope located on La Palma (Spain), hence with an optimal view on the Northern sky. Sensitive in the 30 GeV-30 TeV energy band, it is nowadays t…

hep-th2008

On the equivalence between real and superfield 5d formalisms

David Diego

We explicitly prove the equivalence and construct a dictionary between two different supersymmetric formalisms for five-dimensional theories commonly used in the literature. One is…

hep-ph2008★ 3 cited

Mechanism of single-spin asymmetries generation in the inclusive hadron processes

S. M. Troshin, N. E. Tyurin

We discuss a nonperturbative mechanism for generation of the single-spin asymmetries in hadron interactions. It is based on the chiral quark model combined with unitarity and impac…

hep-th2008

The M2/M5 BPS Partition Functions from Supergravity

Pedro J. Silva

In the framework of the AdS/CFT duality, we calculate the supersymmetric partition function of the superconformal field theories living in the world volume of either $N$ $M 2$ -brane…

hep-ex2008★ 13 cited

Measurement of the kT Distribution of Particles in Jets Produced in ppbar Collisions at s**(1/2)=1.96$-TeV

CDF Collaboration, T. Aaltonen

We present a measurement of the transverse momentum with respect to the jet axis ( $k_{T}$ ) of particles in jets produced in $p p ˉ$ collisions at $s = 1.96$ TeV. Results are…

hep-ph2008★ 24 cited

Double charmonium production at B-factories within light cone formalism

V. V. Braguta

This paper is devoted to the study of the processes e^+e^- \to J/Ψη_c, J/Ψη_c', ψ' η_c, ψ' η_c' within light cone formalism. It is shown that if one disregards the contribution of…

hep-ex2008★ 84 cited

Inclusive Search for Squark and Gluino Production in ppbar Collisions at sqrt{s} = 1.96 TeV

T. Aaltonen

We report on a search for inclusive production of squarks and gluinos in ppbar collisions at sqrt{s}=1.96 TeV, in events with large missing transverse energy and multiple jets of h…

hep-ex2008

The yields of light meson resonances in neutrinonuclear interactions at <E_nu> = 10 GeV

N. M. Agababyan, V. V. Ammosov, M. Atayan +5

The total yields of the all well-established light mesonic resonances (up to the $ϕ$ (1020) meson) are estimated in neutrinonuclear interactions at < E_nu > = 10 GeV, using the data…

hep-ex2008★ 29 cited

First measurement of direct $f_{0} (980)$ photoproduction on the proton

CLAS Collaboration, M. Battaglieri, R. De Vita +1

We report on the results of the first measurement of exclusive $f_{0} (980)$ meson photoproduction on protons for $E_{γ} = 3.0 - 3.8$ GeV and $- t = 0.4 - 1.0$ GeV $^{2}$ . Data were collected w…

astro-ph2008★ 19 cited

MAGIC upper limits to the VHE gamma-ray flux of 3C454.3 in high emission state

H. Anderhub, S. Vercellone, I. Donnarumma +2

We report upper limits to the very high energy flux (E>100 GeV) of the flat spectrum radio quasar 3C454.3 (z=0.859) derived by the Cherenkov telescope MAGIC during the high states…

Determination of Strange Sea Distributions from Neutrino-Nucleon Deep Inelastic Scattering

Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV

Possible duality violations in tau decay and their impact on the determination of alpha_s

Estimate of the systematic error in tau decay due to duality violations

Infrared behavior and Gribov ambiguity in SU(2) lattice gauge theory

The June 2008 flare of Markarian 421 from optical to TeV energies

A Note on Unparticle Decays

Nonlinear Regge Trajectories in Theory and Practice

Eta-eta' mixing from V->Pgamma and J/psi->VP decays

Top Quark Mass Measurement in the Lepton plus Jets Channel Using a Modified Matrix Element Method

Scalar resonances in a unitary π−π S-wave model for D+→π+π−π+

Search for top-quark production via flavor-changing neutral currents in W+1 jet events at CDF

Observation of Two-source Interference in the Photoproduction Reaction AuAu→AuAuρ0

Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing

Results of MAGIC on Galactic sources

On the equivalence between real and superfield 5d formalisms

Mechanism of single-spin asymmetries generation in the inclusive hadron processes

The M2/M5 BPS Partition Functions from Supergravity

Measurement of the kT Distribution of Particles in Jets Produced in ppbar Collisions at s**(1/2)=1.96$-TeV

Double charmonium production at B-factories within light cone formalism

Inclusive Search for Squark and Gluino Production in ppbar Collisions at sqrt{s} = 1.96 TeV

The yields of light meson resonances in neutrinonuclear interactions at <E_nu> = 10 GeV

First measurement of direct f0​(980) photoproduction on the proton

MAGIC upper limits to the VHE gamma-ray flux of 3C454.3 in high emission state

Scalar resonances in a unitary $π - π$ $S$ -wave model for $D^{+} \to π^{+} π^{-} π^{+}$

Observation of Two-source Interference in the Photoproduction Reaction $A u A u \to A u A u ρ^{0}$

First measurement of direct $f_{0} (980)$ photoproduction on the proton