1,580 research outputs found
CDF Run II Status and prospects
Run II at the Tevatron Collider started at the beginning of March 2001. With
extensive upgrades on both detectors and electronics the CDF II began to
collect data. This paper reviews early Run II physics results obtained by
analyzing data collected before the middle of june 2002. At the present the
understanding of the detector performances is rather high so many analysis are
already underway.Comment: 12 pages, 10 figures, 2 tables. Proceeding of the International
Conference on Supersymmetry and Unification of Fundamental Interactions
(SUSY02) - June 17-23, 200
Searches for New Physics at Tevatron
This paper reviews the most recent results on searches for physics beyond the
Standard Model at Tevatron. Both the collider experiments: CDF and DO are
performing a large variety of searches such as searches for scalar top and
scalar bottom particles, search for new gauge bosons, search for long-lived
massive particles and general searches for new particles decaying into dijets.
The results, summarized here, are a selection of what obtained recently by both
the collaborations using the Run II data, collected so far.Comment: 6 pages, 6 figures, 1 table. Pub. Proceedings XV Meeting on High
Energy Physics (Incontri sull delle Alte Energie XV-IFAE03), Lecce, Italy,
April 23-26, 200
Probing Physics Beyond the SM at Tevatron
Tevatron Experiments: CDF and DO collected during October 1992 and
February 1996 (Run I) a data sample of roughly 120
collisions at a center of mass energy 1.8 TeV. A large variety of
physical studies have been performed using these data. Current paper reviews
last results obtained searching for physics beyond the Standard Model. Direct
Supersymmetry (SUSY) searches are not part of this review.Comment: 4 pages, 4 figures and 2 tables. IFAE Conference Proceedin
Cosmic Ray Physics with ACORDE at LHC
The use of large underground high-energy physics experiments, for comic ray
studies, have been used, in the past, at CERN, in order to measure, precisely,
the inclusive cosmic ray flux in the energy range from 2x10^10 - 2x10^12 eV.
ACORDE, ALICE Cosmic Rays DEtector, will act as Level 0 cosmic ray trigger and,
together with other ALICE apparatus, will provide precise information on cosmic
rays with primary energies around 10^15 - 10^17 eV. This paper reviews the main
detector features, the present status, commissioning and integration with other
apparatus. Finally, we discuss the ACORDE-ALICE cosmic ray physics program.Comment: Contribution to the 2007 Europhysics Conference on High Energy
Physics - Manchester, England 19-25 July 2007; 3 pages, 3 figure
Search for the Lepton Flavour Violating Higgs decay H --> tau mu at Hadron Colliders
We study the prospects to detect at hadron colliders the Lepton Flavour
Violating Higgs decay H --> tau mu, which can reach substantial branching
fractions in several extensions of the SM. Among them, the generic two higgs
doublet model can be taken as a representative case where B.R.(H --> tau mu)
can reach values of order 10^-1-10^-2. Bounds on the LFV factor kappa_{tau mu}
of order 0.8-1.7 can be derived at 95% c.l. at Tevatron Run-2 with 4 fb^-1 for
m_H = 110-150 GeV.Comment: 3 pages, 1 figure, uses RevTeX4. Contribution to Snowmass 200
Higgs mediated Double Flavor Violating top decays in Effective Theories
The possibility of detecting double flavor violating top quark transitions at
future colliders is explored in a model-independent manner using the effective
Lagrangian approach through the () decays. A
Yukawa sector that contemplates invariants of up to
dimension six is proposed and used to derive the most general flavor violating
and CP violating and vertices of renormalizable type.
Low-energy data, on high precision measurements, and experimental limits are
used to constraint the and vertices and then used to
predict the branching ratios for the decays. It is found
that this branching ratios may be of the order of , for a
relative light Higgs boson with mass lower than , which could be more
important than those typical values found in theories beyond the standard model
for the rare top quark decays () or . %% LHC experiments, by using a total integrated luminosity of of data, will be able to rule out, at 95% C.L., DFV top quark
decays up to a Higgs mass of 155 GeV/ or discover such a process up to a
Higgs mass of 147 GeV/.Comment: 24 pages, 11 figure
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