116941153
Beyond Standard Model and Exotics: Experimental overview
123468882
Prospects for SUSY discovery based on inclusive searches with the ATLAS detector
The search for Supersymmetry (SUSY) among the possible scenarios of new physics is one of the most relevant goals of the ATLAS experiment running at CERN's Large Hadron Collider. In the present work the expected prospects for discovering SUSY with the ATLAS detector are reviewed, in particular for the first fb-1 of collected integrated luminosity. All studies and results reported here are based on inclusive search analyses realized with Monte Carlo signal and background data simulated through the ATLAS apparatus.
117068975
ATLAS RPC Quality Assurance results at INFN Lecce
The main results of the quality assurance tests performed on the Resistive Plate Chamber used by the ATLAS experiment at LHC as muon trigger chambers are reported and discussed. 
Since July 2004, about 270 RPC units has been certified at INFN Lecce site and delivered to CERN, for being integrated in the final muon station of the ATLAS barrel region. 
We show the key RPC characteristics which qualify the performance of this detector technology as muon trigger chamber in the harsh LHC enviroments. 
These are dark current, chamber efficiency, noise rate, gas volume tomography, and gas leakage.
122706822
Neutralino spin measurement with ATLAS
One of the goals of the ATLAS experiment at the LHC is to search for evidence of Supersymmetry (SUSY) signals and to measure, if discovered, the main properties of the new particles, like the spin. Left-handed squark cascade decay to second lightest neutralino (~ 0 ) which further decays to slepton represents a good opportunity for SUSY particles’ spin measurement. The observability of charge asymmetries in invariant mass distributions of some final products is investigated to prove that neutralino spin is 1/2. The criteria used to select signal events and to reject background are described, together with the applied cut efficiencies. Results on charge asymmetry are then shown and discussed.
124822108
MUON RECONSTRUCTION AND IDENTIFICATION FOR THE EVENT FILTER OF THE ATLAS EXPERIMENT
17810666
ATLAS RPC Cosmic Ray Teststand at INFN Lecce
We describe the design and functionality of the cosmic ray teststand built at 
INFN Lecce for ATLAS RPC quality control assurance.
54968955
Nuclear Physics for the Re/Os Clock
Dating the age of the universe by the β-decay of 187Re (t1/2 = 41.2 Gyr) 
requires the accurate assessment of the s-process reaction flow. The daughter 
nucleus 187Os as well as its immediate s-only neighbor 186Os are shielded from 
the r-process. Therefore, the radiogenic contribution to 187Os can be derived 
via the local approximation of the s-process, which is well justified in this 
mass region: ( σ Ns)187 = ( σ Ns)186. Accordingly, accurate Maxwellianaveraged 
(n, γ ) cross sections have to be known for 186Os and 187Os over the 
full range of s-process temperatures. Because 187Os has low-lying excited 
states, which are significantly populated during the s-process, neutron captures 
on these excited states have to be properly taken into account. The input 
for the corresponding Hauser–Feshbach calculations can be constrained by 
deriving the strength functions from a detailed resonance analysis of the 
measured (n, γ ) cross sections as well as by an additional measurement of 
the inelastic scattering cross section for the first exited level, which dominates 
the competition between the capture and scattering channels. This contribution 
reports on measurements of the neutron capture cross sections of 186Os, 187Os 
and 188Os from the eV region to 1MeV at the CERN/n TOF facility and of the 
inelastic scattering cross section of 187Os around 30 keV at the Karlsruhe 
3.7 MV Van de Graaff accelerator. Based on these results and on a 
detailed resonance analysis, improved Maxwellian-averaged cross sections 
were obtained for thermal energies between 5 keV and 100 keV. The 
implications of these results for the Re/Os clock are discussed.
8021426
Parity violating elastic electron scattering and neutron density distributions in the relativistic Hartree-Bogoliubov model
Parity-violating elastic electron scattering on neutron-rich nuclei is described in the framework of relativistic mean-field theory. Self-consistent g
123018842
Neutron capture on Zr-94 : Resonance parameters and Maxwellian-averaged cross sections
The neutron capture cross sections of the Zr isotopes play an important role in nucleosynthesis studies. The s-process reaction flow between the Fe seed and the heavier isotopes passes through the neutron magic nucleus {sup 90}Zr and through {sup 91,92,93,94}Zr, but only part of the flow extends to {sup 96}Zr because of the branching point at {sup 95}Zr. Apart from their effect on the s-process flow, the comparably small isotopic (n,{gamma}) cross sections make Zr also an interesting structural material for nuclear reactors. The {sup 94}Zr (n,{gamma}) cross section has been measured with high resolution at the spallation neutron source n{sub T}OF at CERN and resonance parameters are reported up to 60 keV neutron energy.
121338444
Dynamic chirality in the interacting boson fermion-fermion model
The chiral interpretation of twin bands in odd-odd nuclei was investigated in the interacting boson fermion-fermion model. The analysis of the wave fu
120041897
Level densities of transitional Sm nuclei
Experimentally determined level densities of the transitional isotopes $^{148,149,150,152}\mathrm{Sm}$ at excitation energies below and around the neutron binding energy are compared with microcanonical calculations based on a Monte Carlo approach to noncollective level densities, folded with a collective enhancement estimated in the frame of the interacting boson model (IBM). The IBM parameters are adjusted so as to reproduce the low-lying discrete levels of both parities, with the exception of the odd-mass nucleus, $^{149}\mathrm{Sm}$, where complete decoupling of the unpaired neutron from the core is assumed.