Physical sciences topic list of research papers
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A high resolution TOF-PET concept with axial geometry and digital SiPM readout
Abstract The axial arrangement of long scintillation crystals is a promising concept in PET instrumentation to address the need for optimized resolution and sensitivity. Individual crystal readout and arrays of wavelength shifter strips placed...
2013 / C. Casella, M. Heller, C. Joram, T. Schneider -
Schrödinger operators with δ -interactions supported on conical surfaces2014 / J Behrndt, P Exner, V Lotoreichik
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Elastic diffractive scattering of nucleons at ultra-high energies
Abstract A simple Regge-eikonal model with the eikonal represented as a single-reggeon-exchange term is applied to description of the nucleon–nucleon elastic diffractive scattering at ultra-high energies. The range of validity of the proposed...
2014 / A.A. Godizov -
Gravitino dark matter and the flavour structure of R-violating operators
Abstract We study gravitino dark matter and slow gravitino decays within the framework of R-violating supersymmetry, with particular emphasis on the flavour dependence of the branching ratios and the allowed R-violating couplings. The dominant decay ...
2009 / N.-E. Bomark, S. Lola, P. Osland, A.R. Raklev -
Post-inflationary preheating with weak coupling
Abstract Particle production in the background of an external classical oscillating field is a key process describing the stage of preheating after inflation. For sufficiently strong couplings between the inflaton and matter fields, this process is...
2014 / Igor Rudenok, Yuri Shtanov, Stanislav Vilchinskii -
Fusion Breeding for Mid-Century Sustainable Power2014 / Wallace Manheimer
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Two Color FEL Driven by a Comb-like Electron Beam Distribution
Abstract We discuss a new method for the production of trains of FEL radiation pulses based on the FEL emission driven by a comb-like electron beam. In addition, we present recent experimental results on the two color FEL emission as generated at...
2014 / E. Chiadroni, M.P. Anania, M. Artioli, A. Bacci, M. Bellaveglia, et al. -
Q-operators in the six-vertex model
Abstract In this paper we continue the study of Q-operators in the six-vertex model and its higher spin generalizations. In [1] we derived a new expression for the higher spin R-matrix associated with the affine quantum algebra ...
2014 / Vladimir V. Mangazeev -
Do lattice data constrain the vector interaction strength of QCD?
Abstract We show how repulsive interactions of deconfined quarks as well as confined hadrons have an influence on the baryon number susceptibilities and the curvature of the chiral pseudo-critical line in effective models of QCD. We discuss...
2014 / Jan Steinheimer, Stefan Schramm -
Statistical Properties of the Estimated Degree of Polarization2007 / T. Medkour, A. T. Walden
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Partition functions of Polychronakos like spin chains associated with polarized spin reversal operators
Abstract We construct polarized spin reversal operator (PSRO) which yields a class of representations for the BC ...
2014 / B. Basu-Mallick, Nilanjan Bondyopadhaya, Pratyay Banerjee -
Threefold complementary approach to holographic QCD
Abstract A complementary approach, derived from (a) higher-dimensional anti-de Sitter (AdS) space, (b) light-front quantization and (c) the invariance properties of the full conformal group in one dimension leads to a nonperturbative relativistic...
2014 / Stanley J. Brodsky, Guy F. de Téramond, Hans Günter Dosch -
Observation of a New Resonance at ATLAS
Abstract With the LHC increasing collision energies to s = 8 TeV ...
2013 / Antonio Boveia -
Search for pair production of massive particles decaying into three quarks with the ATLAS detector in $ \sqrt{s}=7\;\mathrm{TeV} $ pp collisions at the LHC2012 / G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, et al.
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Inverting a supernova: neutrino mixing, temperatures and binding energy
Abstract We show that the temperatures of the emergent non-electron neutrinos and the binding energy released by a galactic Type II supernova are determinable, assuming the Large Mixing Angle (LMA) solution is correct, from observations at the...
2002 / V. Barger, D. Marfatia, B.P. Wood -
Lepton flavor violating processes li→ljνlν̄l in topcolor-assisted technicolor models
Abstract We study the lepton flavor violating (LFV) processes li→ljνl ν ̄ l in the context of the...
2003 / Chongxing Yue, Lanjun Liu -
NCOS and D-branes in time-dependent backgrounds
Abstract We study noncommutative open string (NCOS) theories realized in string theory with time-dependent backgrounds. Starting from a noncommutative Yang–Mills theory (NCYM) with a constant space–space noncommutativity but in a time-dependent...
2002 / Rong-Gen Cai, Jian-Xin Lu, Nobuyoshi Ohta -
Elliptic flow of colored glass in high energy heavy ion collisions
Abstract We compute the elliptic flow generated by classical gluon fields in a high energy nuclear collision. The classical gluon fields are described by a typical momentum scale, the saturation scale Λ ...
2003 / Alex Krasnitz, Yasushi Nara, Raju Venugopalan -
On the Berkovits covariant quantization of GS superstring
Abstract We study the covariant quantization of the Green–Schwarz (GS) superstrings proposed recently by Berkovits. In particular, we reformulate the Berkovits approach in a way that clarifies its relation with the GS approach and allows to derive...
2002 / Ichiro Oda, Mario Tonin -
Non-perturbative non-locality: V±A correlators in euclidean position space
Abstract Using an OPE modification, which takes non-perturbative non-locality into account, the difference and sum of vector and axial-vector correlators are evaluated in euclidean position space. For distances up to 0.8 fm the calculated behavior...
2002 / Ralf Hofmann