14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
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- University of LiverpoolGB2.4k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- University of EdinburghGB2.3k papers
- University of MichiganUS2.2k papers
- National Institute for Subatomic PhysicsNL2.2k papers
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36 papers · 1 filter
Lattice Gauge Theory Simulations at Nonzero Chemical Potential in the Chiral Limit
I. M. Barbour, S. E. Morrison, John B. Kogut
We present a method of simulating lattice QCD at nonzero chemical potential in the chiral limit. By adding a weak four-fermi interaction to the standard staggered fermion SU(3) QCD…
Determination of the Longitudinal Proton Structure Function F_L(x,Q^2) at Low x
C. Adloff
A measurement of the inclusive cross section for the deep-inelastic scattering of positrons off protons at HERA is presented at momentum transfers and…
and mesons with NRQCD and Clover actions
A. Ali Khan, T. Bhattacharya
We present preliminary results from our study of the heavy-light spectrum and decay constants. For the heavy quark, we use NRQCD at various masses around and above the quark ma…
Search for Excited Fermions with the H1 Detector
S. Aid
We present a search for excited electrons, neutrinos and quarks using the H1 detector at the collider HERA, based on data taken in 1994 with an integrated luminosity of 2.75 p…
Prompt photon, Drell-Yan and Bethe-Heitler processes in hard photoproduction
P. J. Bussey, B. B. Levchenko, A. Shumilin
We present prospects and requirements for the study at HERA of hard photon processes which generate high photons in the final state, and processes which generate Drell-Yan le…
Phase Structure of Lattice QCD at Finite Density with Dynamical Fermions
I. M. Barbour, J. B. Kogut, S. E. Morrison
We compare the chemical potential associated with the onset of non-zero baryon number density on and lattices at and ma=0.01. We provide evidence for tun…
Charged Particle Multiplicities in Deep Inelastic Scattering at HERA
S. Aid
Using the H1 detector at HERA, charged particle multiplicity distributions in deep inelastic ep scattering have been measured over a large kinematical region. The evolution with $W…
Comparing Wilson and Clover Quenched Spectroscopy with an Improved Gauge Action
Sara Collins, Robert G. Edwards, Urs M. Heller +1
We present results of quenched hadron spectroscopy comparing $\order(a)$ improved Wilson (Clover) fermions with conventional Wilson fermions. The configurations were genera…
The effect of tree-level and mean-field improvement on the light-hadron spectrum in quenched QCD
UKQCD Collaboration, H. P. Shanahan, C. T. H. Davies +10
We compute the light hadron mass spectrum at beta=5.7 using the O(a) improved Sheikholeslami-Wohlert (SW) fermion action with two choices of the clover coefficient: the classical v…
Observation of Events with an Energetic Forward Neutron in Deep Inelastic Scattering at HERA
ZEUS Collaboration, M. Derrick et al
In deep inelastic neutral current scattering of positrons and protons at the center of mass energy of 300 GeV, we observe, with the ZEUS detector, events with a high energy neutron…
Inclusive and Production in Deep Inelastic Collisions at HERA
S. Aid
First results on inclusive D0 and D* production in deep inelastic scattering are reported using data collected by the H1 experiment at HERA in 1994. Differential cross section…
Strangeness Production in Deep-Inelastic Positron-Proton Scattering at HERA
S. Aid
Measurements are presented of meson and baryon production in deep-inelastic positron-proton scattering (DIS) in the kinematic range GeV and $10^{-4} <…
Mass Limit for the Lightest Neutralino
The ALEPH Collaboration
Indirect limits on the mass of the lightest neutralino are derived from the results of searches for charginos, neutralinos, and sleptons performed with data taken by the ALEPH Coll…
Fermion Masses and Anti-grand Unification
C. D. Froggatt, H. B. Nielsen, D. J. Smith
We present an extension of the Standard Model (SM) without supersymmetry, which we use to calculate order of magnitude values for the elements of the mass matrices in the SM. In ou…
Measurement of the F2 structure function in deep inelastic scattering using 1994 data from the ZEUS detector at HERA
ZEUS Collaboration
We present measurements of the structure function \Ft\ in scattering at HERA in the range $3.5\;\Gevsq < \qsd < 5000\;\Gevsq$. A new reconstruction method has allowed a sign…
Decay Constants from NRQCD with Dynamical Fermions
S. Collins, U. M. Heller, J. Sloan +3
We present a lattice investigation of the heavy-light meson decay constants using Wilson light quarks and NRQCD heavy quarks, partially including the effects of dynamical sea quark…
Dijet Angular Distributions in Direct and Resolved Photoproduction at HERA
ZEUS Collaboration
Jet photoproduction, where the two highest transverse energy ($\ETJ$) jets have $\ETJ$ above 6 GeV and a jet-jet invariant mass above 23~GeV, has been studied with the ZEUS detecto…
Results of the First Coincident Observations by Two Laser-Interferometric Gravitational Wave Detectors
D. Nicholson
We report an upper bound on the strain amplitude of gravitational wave bursts in a waveband from around 800Hz to 1.25kHz. In an effective coincident observing period of 62 hours, t…
Measurement of the Reaction in Deep Inelastic Scattering at HERA
ZEUS Collaboration
The production of mesons in the reaction (), for GeV and for virtual photon-proton centre of mass ener…
A Search for Selectrons and Squarks at HERA
S. Aid
Data from electron-proton collisions at a center-of-mass energy of 300 GeV are used for a search for selectrons and squarks within the framework of the minimal supersymmetric model…
Extending the Standard Model Using Charge Quantisation Rules
C. D. Froggatt, H. B. Nielsen, D. J. Smith
We examine extensions of the Standard Model (SM), basing our assumptions on what has already been observed; we don't consider anything fundamentally different, such as grand unific…
Photoproduction of Mesons in Collisions at HERA
S. Aid
At the electron-proton collider HERA the inclusive meson photoproduction cross section has been measured with the H1 detector in two different, but partly overlapping, k…
Working Group Report on the Structure of the Proton
B. Badelek, J. Bartels, N. Brook +5
We summarize the developments on the structure of the proton that were studied at the Workshop on "HERA Physics" that was held in Durham in September 1995. We survey the latest str…
Could there be a Fourth Generation of Quarks Without More Leptons?
C. D. Froggatt, H. B. Nielsen, D. J. Smith
We investigate the possibility of adding a fourth generation of quarks. We also extend the Standard Model gauge group by adding another SU(N) component. In order to cancel the cont…