Valentin Mihai | Stefan Cel Mare (original) (raw)
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Papers by Valentin Mihai
A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp c... more A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √ s = 7 TeV with the ATLAS detector
√ s = 7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton
A search is presented for production of a heavy up-type quark (t ′ ) together with its antipartic... more A search is presented for production of a heavy up-type quark (t ′ ) together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t ′t ′ → W + bW −b . The search is based on 1.04 fb −1 of proton-proton collisions at √ s = 7 TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton+jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit of 404 GeV is set for the mass of the t ′ quark.
Journal of Non-crystalline Solids, 1987
In this Letter we report the first results on π ± , K ± , p and p production at mid-rapidity (|y|... more In this Letter we report the first results on π ± , K ± , p and p production at mid-rapidity (|y| < 0.5) in central Pb-Pb collisions at √ s NN = 2.76 TeV, measured by the ALICE experiment at the LHC. The p T distributions and yields are compared to previous results at √ s NN = 200 GeV and expectations from hydrodynamic and thermal models. The spectral shapes indicate a strong increase of the radial flow velocity with √ s NN , which in hydrodynamic models is expected as a consequence of the increasing particle density. While the K/π ratio is in line with predictions from the thermal model, the p/π ratio is found to be lower by a factor of about 1.5. This deviation from thermal model expectations is still to be understood. π, K, and p production in central Pb-Pb collisions at √ s NN = 2.76 TeV 1
The public authorities (the agency) messages could play a key role in the social subjects' decisi... more The public authorities (the agency) messages could play a key role in the social subjects' decisions. How and when the agency communicates the path of its future policies influences the present social and economic architecture.
The field of Ubiquitous Wireless Sensor Networks has recently been the subject of an exponential ... more The field of Ubiquitous Wireless Sensor Networks has recently been the subject of an exponential development in various telecommunications areas. One of the open issues in this field is to create an interface that would allow the user to naturally interact with the various objects that compose the ubiquitous ambient. An emerging solution to this challenge seems to be the integration of Virtual Reality technologies into these applications. The goal of this research is to investigate a way of assimilating a fully immersive, three-dimensional virtual environment to Wireless Sensor Networks and hence, to develop a human-network interaction (HNI) conceptual system. The integration, in this system, of the paradigm of Televirtuality through the recent concept of “3D Internet” is also studied. To illustrate the concept, a human - intelligent building interaction system is implemented, that allows the user to naturally interact with intelligent objects, actuators, or remote equipment altogether connected within the same network.
Measurements of cross sections of inelastic and diffractive processes in proton-proton collisions... more Measurements of cross sections of inelastic and diffractive processes in proton-proton collisions at LHC energies were carried out with the ALICE detector. The fractions of diffractive processes in inelastic collisions were determined from a study of gaps in charged particle pseudorapidity distributions: for single diffraction (diffractive mass M X < 200 GeV/c 2 ) σ SD /σ INEL = 0.21 ± 0.03, 0.20 +0.07 −0.08 , and 0.20 +0.04 −0.07 , respectively at centre-of-mass energies
A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp c... more A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √ s = 7 TeV with the ATLAS detector
√ s = 7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton
A search is presented for production of a heavy up-type quark (t ′ ) together with its antipartic... more A search is presented for production of a heavy up-type quark (t ′ ) together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t ′t ′ → W + bW −b . The search is based on 1.04 fb −1 of proton-proton collisions at √ s = 7 TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton+jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit of 404 GeV is set for the mass of the t ′ quark.
Journal of Non-crystalline Solids, 1987
In this Letter we report the first results on π ± , K ± , p and p production at mid-rapidity (|y|... more In this Letter we report the first results on π ± , K ± , p and p production at mid-rapidity (|y| < 0.5) in central Pb-Pb collisions at √ s NN = 2.76 TeV, measured by the ALICE experiment at the LHC. The p T distributions and yields are compared to previous results at √ s NN = 200 GeV and expectations from hydrodynamic and thermal models. The spectral shapes indicate a strong increase of the radial flow velocity with √ s NN , which in hydrodynamic models is expected as a consequence of the increasing particle density. While the K/π ratio is in line with predictions from the thermal model, the p/π ratio is found to be lower by a factor of about 1.5. This deviation from thermal model expectations is still to be understood. π, K, and p production in central Pb-Pb collisions at √ s NN = 2.76 TeV 1
The public authorities (the agency) messages could play a key role in the social subjects' decisi... more The public authorities (the agency) messages could play a key role in the social subjects' decisions. How and when the agency communicates the path of its future policies influences the present social and economic architecture.
The field of Ubiquitous Wireless Sensor Networks has recently been the subject of an exponential ... more The field of Ubiquitous Wireless Sensor Networks has recently been the subject of an exponential development in various telecommunications areas. One of the open issues in this field is to create an interface that would allow the user to naturally interact with the various objects that compose the ubiquitous ambient. An emerging solution to this challenge seems to be the integration of Virtual Reality technologies into these applications. The goal of this research is to investigate a way of assimilating a fully immersive, three-dimensional virtual environment to Wireless Sensor Networks and hence, to develop a human-network interaction (HNI) conceptual system. The integration, in this system, of the paradigm of Televirtuality through the recent concept of “3D Internet” is also studied. To illustrate the concept, a human - intelligent building interaction system is implemented, that allows the user to naturally interact with intelligent objects, actuators, or remote equipment altogether connected within the same network.
Measurements of cross sections of inelastic and diffractive processes in proton-proton collisions... more Measurements of cross sections of inelastic and diffractive processes in proton-proton collisions at LHC energies were carried out with the ALICE detector. The fractions of diffractive processes in inelastic collisions were determined from a study of gaps in charged particle pseudorapidity distributions: for single diffraction (diffractive mass M X < 200 GeV/c 2 ) σ SD /σ INEL = 0.21 ± 0.03, 0.20 +0.07 −0.08 , and 0.20 +0.04 −0.07 , respectively at centre-of-mass energies