5,025 research outputs found
Future Facilities Summary
For the session on future facilities at DIS09 discussions were organized on
DIS related measurements that can be expected in the near and medium - or
perhaps far - future, including plans from JLab, CERN and FNAL fixed target
experiments, possible measurements and detector upgrades at RHIC, as well as
the plans for possible future electron proton/ion colliders such as the EIC and
the LHeC project.Comment: Summary of the parallel sessions on future facilities and the plenary
discussion session on possible future electron proton/ion colliders such as
the EIC and the LHeC project at the Deep Inelastic Scattering workshop in
Madrid, April 200
Studying the Higgs Sector at the CLIC Multi-TeV Collider
In this paper, we review the role of a multi-TeV linear collider to
complete the mapping of the Higgs boson profile and studying heavier bosons in
extended scenarios with more than one Higgs doublet.Comment: 8 pages, 4 figures, to appear on the Proceedings of the Int. Workshop
on Linear Colliders, LCWS2002, Jeju Island (Korea
g_1 at low x and low Q^2 with Polarized ep Colliders
Measurements of g_1 at low x and low Q^2 are expected to provide a sensitive
probe of the transition from Regge to perturbative QCD dynamics, offering a new
testing ground for models of small x physics. We discuss the potential of
polarized ep colliders (Polarized HERA and eRHIC) to investigate this physics
--- varying Q^2 between 0.01 and 1 GeV^2 --- and to constrain the high-energy
part of the Drell-Hearn-Gerasimov sum-rule for polarized photoproduction.Comment: 18 pages, 2 figure
Physics Motivations for Future CERN Accelerators
We summarize the physics motivations for future accelerators at CERN. We
argue that (a) a luminosity upgrade for the LHC could provide good physics
return for a relatively modest capital investment, (b) CLIC would provide
excellent long-term perspectives within many speculative scenarios for physics
beyond the Standard Model, (c) a Very Large Hadron Collider could provide the
first opportunity to explore the energy range up to about 30 TeV, (d) a
neutrino factory based on a muon storage ring would provide an exciting and
complementary scientific programme and a muon collider could be an interesting
later option.Comment: 14 pages, 1 figure, Prepared for the CERN Scientific Policy Committee
in September 2001, and presented to the CERN Council in December 200
Top production at hadron colliders
New results on top quark production are presented from four hadron collider experiments: CDF and D0 at the Tevatron, and ATLAS and CMS at the LHC. Cross-sections for single top and top pair production are discussed, as well as results on the top-antitop production asymmetry and searches for new physics including top quarks. The results are based on data samples of up to 5.4 fbâââ1 for the Tevatron experiments and 1.1 fbâââ1 for the LHC experiment
Experimental Summary Moriond QCD 2008
2008 was a vintage year for the QCD Moriond meeting. Plenty of new data from
Tevatron, HERA, B-Factories and other experiments have been reported. Some
brand new results became public just before or even during the conference. A
few new hints for New Physics came up in Winter 2008, but these await further
scrutiny. This paper is the write-up of the experimental summary talk given at
the Moriond QCD March meeting.Comment: 18 pages, 17 figure
New Results from the CMS experiment
We'll present recent results from the CMS experiment on measurements, such as the total inelastic pp cross section, diffractive phenomena, leading particlespectra and energy flow in the forward region, measurements relevant for tuning of Monte Carlo programs used for cosmic rays studies. We'll also give a brief overview of the searches for new physics and the recent results on the discovery of a higgs-like particle with a mass of 125 GeV
The gluon content of the photon from di-jet production at the photon-photon collider
A study of di-jet measurements at a future photon collider is reported. The
sensitivity to extract the gluon distribution is discussed. The results are
compared with calculations for a linear e+e- collider.Comment: revised version with minor text changes and one figure replace
Physics at Multi-TeV Linear Colliders
The physics at an e+e- linear collider with a center of mass energy of 3-5 TeV is reviewed. The following topics are covered: experimental environment, Higgs physics, supersymmetry, fermion pair-production, WW scattering, extra dimensions, non-commutative theories, and black hole production.The physics at an e+e- linear collider with a center of mass energy of 3-5 TeV is reviewed. The following topics are covered: experimental environment, Higgs physics, supersymmetry, fermion pair-production, WW scattering, extra dimensions, non-commutative theories, and black hole production
Contrasting Supersymmetry and Universal Extra Dimensions at Colliders
We contrast the experimental signatures of low energy supersymmetry and the
model of Universal Extra Dimensions and discuss various methods for their
discrimination at hadron and lepton colliders. We study the discovery reach of
hadron colliders for level 2 Kaluza-Klein modes, which would indicate the
presence of extra dimensions. We also investigate the possibility to
differentiate the spins of the superpartners and KK modes by means of the
asymmetry method of Barr. We then review the methods for discriminating between
the two scenarios at a high energy linear collider such as CLIC. We consider
the processes of Kaluza-Klein muon pair production in universal extra
dimensions in parallel to smuon pair production in supersymmetry. We find that
the angular distributions of the final state muons, the energy spectrum of the
radiative return photon and the total cross-section measurement are powerful
discriminators between the two models.Comment: 6 pages, 8 figures, to appear in the proceedings of the 2005
International Linear Collider Workshop, Stanford, US
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