873 research outputs found
A Leakage Current-based Measurement of the Radiation Damage in the ATLAS Pixel Detector
A measurement has been made of the radiation damage incurred by the ATLAS
Pixel Detector barrel silicon modules from the beginning of operations through
the end of 2012. This translates to hadronic fluence received over the full
period of operation at energies up to and including 8 TeV. The measurement is
based on a per-module measurement of the silicon sensor leakage current. The
results are presented as a function of integrated luminosity and compared to
predictions by the Hamburg Model. This information can be used to predict
limits on the lifetime of the Pixel Detector due to current, for various
operating scenarios.Comment: 10 pages, 7 figures, talk presented on behalf of the ATLAS
Collaboration at the 7th International Workshop on Semiconductor Pixel
Detectors for Particles and Imaging (PIXEL2014), 1 - 5 Sep 2014, Niagara
Falls, Ontario, Canada; to appear in the Conference Proceedings to be
published by JINS
Heavy Flavor Physics at ATLAS and CMS
Recent results on heavy flavor physics using data from the ATLAS and CMS
detectors are presented. The searches for new physics signatures in CP
violation of B0_s - anti(B0_s) mixing and in B0_d --> K*0 mu+ mu- decays are
discussed. The bottomonium and open-b production results obtained from
proton-proton collisions at LHC are shown. The results are based on data
samples containing mu+ mu- pairs collected with the ATLAS or CMS detectors by
their corresponding muon trigger systems.Comment: 5 pages, 4 figures, talk given on behalf of the ATLAS and CMS
Collaborations at the 7th joint International HADRON STRUCTURE '13
Conference, Slovaki
Latest Results on Orbitally Excited Strange Bottom Mesons with the CDF II Detector
We present the latest results on the spectroscopy of orbitally excited
strange bottom mesons from 1 fb^{-1} of CDF data. The measurements are
performed with fully reconstructed B- decays collected by the CDF II detector
at the sqrt(s)-energy of 1.96 TeV in both the di-muon and the fully hadronic
trigger paths.Comment: 4 pages, 6 figures; talk given at ICHEP 2006, July 26 - August 2,
2006, Moscow, Russi
Pentaquark Searches at CDF
Experimental results of a search for the Xi_(3/2)(1860) cascade pentaquark
state in data collected with the CDF 2 Detector in Run II at the Tevatron are
presented. No evidence for these states in the neutral Xi-pi+ and doubly
charged Xi-pi- modes has been found. Preliminary upper limits on yields at 1862
MeV/c**2 relative to the well established resonance Xi*0(1530) are presented.Comment: 5 pages, 6 figures, talk given at DIS 2004 Workshop, to be published
in Proceedings of the DIS 2004 Worksho
Heavy Flavor Production in CDF II Detector
For data collected with the CDF Run II detector, measurements of the charm
and bottom production cross-sections are presented. The results are based both
on large samples of fully reconstructed hadron decay products of charm and
bottom made available by the tracking triggers and on a calorimeter jet
triggered sample tagged by the presence of a secondary vertex. The experimental
data are compared with theoretical predictions from recent next-to-leading
order (NLO) QCD calculations.Comment: 5 pages, 3 figures; a write up of the talk given on behalf of the CDF
Collaboration at the XVII Particles and Nuclei International Conference,
PANIC 05, October 24-28, 2005, Santa Fe, New Mexico, U.S.
Beyond the Standard Model Physics Searches at the Tevatron
The recent results on a number of searches performed at Tevatron for new
phenomena beyond Standard Model are presented. The topics include the
experimental tests of SUSY with mSUGRA and GMSB breaking scenarios. The latest
analyses on large extra dimensions, new massive bosons are covered as well. The
results are based on experimental data samples collected at the Tevatron with
CDF and D0 detectors and comprising a total integrated luminosity up to ~2.7
fb^-1 .Comment: The plenary talk given at the workshop HSQCD 2008, Gatchina, Russia,
June 30 - July 4, 2008; 9 pages, 5 figures, 1 tabl
ATLAS Pixel Radiation Monitoring with HVPP4 System
In this talk we present the basis for the protocol for radiation monitoring
of the ATLAS Pixel Sensors. The monitoring is based on a current measurement
system, HVPP4. The status on the ATLAS HVPP4 system development is also
presented.Comment: Talk given at DPF-2009, Detroit, MI, July 2009; 8 pages, 4 figures, 6
tables; To be published in the proceedings of DPF-2009, Detroit, MI, July
2009, eConf C09072
Heavy Hadron Spectroscopy and Production at Tevatron
Using data from p{bar p} collisions at {radical}s = 1.96 TeV recorded by the CDFII and D0 detectors at the Fermilab Tevatron, we present recent results on charm and bottom hadrons. The most recent CDF results on properties of the four bottom baryon resonant states {Sigma}{sub b}{sup (*)-}, {Sigma}{sub b}{sup (*)+}. New results on exotic {Upsilon}(4140) state observed by CDF are also reported. A precise measurement of production rates of the lowest lying bottom baryon, {Lambda}{sub b}{sup 0}, produced in the D0 detector is presented
Latest results on bottom spectroscopy and production with CDF
Using data collected with the CDF Run II detector, new measurements on bottom production cross-sections are presented. The latest achievements in bottom hadron spectroscopy are discussed. The results are based on a large sample of semileptonic and hadronic decays of bottom states made available by triggers based on the precise CDF tracking system
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