Bastian BATHEN
(UNIV. OF MÜNSTER)
07/06/2011, 17:15
The suppression of high-pT hadron production in central heavy-ion events compared to proton-proton collisions, known as jet quenching, reflects the parton energy loss in a hot and dense medium which is produced in heavy-ion collisions. The reconstruction of jets provides a more direct link to the initial hard-scattered partons and its modified fragmentation process.
The measurements in...
James William Monk
(DPA University College London)
07/06/2011, 17:35
Particle multiplicities and correlations are an important feature of physics at the LHC. They provide an insight into the environment in which all ATLAS physics measurements are performed. Measurements of charge and neutral particle multiplicities and of two-particle correlations with the ATLAS detector, made as a variety of centre-of-mass energies, are presented. These measurements are...
Yogendra Srivastava
(INFN and Univers. Perugia)
07/06/2011, 17:55
Totally inclusive quantities such as the total and inelastic pp cross-sections at the LHC along with proposals for the measurements and estimates of pion proton and pion pion cross-sections will be discussed.
Nora De Marco
(INFN and Univers. Torino)
07/06/2011, 18:20
New data on neutron emission in electromagnetic dissociation Pb ions at LHC will be presented. The measurement was performed by means of the Zero Degree Calorimeters (ZDC) of the ALICE experiment, which consists of two identical sets of detectors located at opposite sides with respect to the beam intersection point, ~114 m away from it. Each set of detectors include a neutron (ZN) and a...
Paolo Bartalini
(NTU- Taiwan)
07/06/2011, 18:40
A measurement of the underlying activity in scattering processes with a pT scale in the several GeV region is performed in proton-proton collisions at sqrt(s) = 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity eta < 2 and pT > 0.5 GeV/c is studied in the azimuthal region transverse to that of the leading set of charged...
Antonio Ortiz Velasquez
(ICN UNA Mexico)
07/06/2011, 19:00
A study of the linearized sphericilty in minimum bias proton-proton collisions at sqrt(s) = 0.9 and 7 TeV with the ALlCE detector at the LHC is presented.
The observable was measured in the plane perpendicular to the beam direction and using primary charged tracks in |eta|<=0.8. The average sphericity as a function of multiplicity is reported for events with different hardness ("soft" and...
