Physical sciences topic list of research papers
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η bound states in nuclei: a probe of flavour-singlet dynamics
Abstract We argue that η bound states in nuclei are sensitive to the singlet component in the η. The bigger the singlet component, the more attraction and the greater the binding. Thus, measurements of η bound states will yield new information about ...
2006 / Steven D. Bass, Anthony W. Thomas -
Reduction of static field equation of Faddeev model to first order PDE
Abstract A method to solve the static field equation of the Faddeev model is presented. For a special combination of the concerned field, we adopt a form which is compatible with the field equation and involves two arbitrary complex functions. As a...
2007 / Minoru Hirayama, Chang-Guang Shi -
Two-quasiparticle K-isomers and pairing strengths in the neutron-rich isotopes 174Er and 172Er
Abstract Isomeric two-quasiparticle states have been identified in the neutron-rich isotopes 172Er and 174Er using multi-nucleon transfer reactions with 136Xe beams incident on various targets, and γ-ray spectroscopy with Gammasphere. A candidate...
2006 / G.D. Dracoulis, G.J. Lane, F.G. Kondev, A.P. Byrne, R.O. Hughes, et al. -
Modular bootstrap in Liouville field theory
Abstract The modular matrix for the generic 1-point conformal blocks on the torus is expressed in terms of the fusion matrix for the 4-point blocks on the sphere. The modular invariance of the toric 1-point functions in the Liouville field theory...
2010 / Leszek Hadasz, Zbigniew Jaskólski, Paulina Suchanek -
The width of Θ+ for large Nc in chiral quark soliton model
Abstract In the chiral quark soliton model the smallness of Θ + width is due to the cancellation of the coupling constants which are of different order in N c ....
2004 / Michał Praszałowicz -
Neutrino oscillation observables from mass matrix structure
Abstract We present a systematic procedure to establish a connection between complex neutrino mass matrix textures and experimental observables, including the Dirac CP phase. In addition, we illustrate how future experimental measurements affect the ...
2007 / Walter Winter -
Parameterizing the effect of dark energy perturbations on the growth of structures
Abstract We present an analytical fit to the growth function of the dark matter perturbations when dark energy perturbations are present. The growth index γ depends upon the dark energy equation of state w, the speed of sound of the dark energy...
2008 / Guillermo Ballesteros, Antonio Riotto -
High-K isomers as probes of octupole collectivity in heavy nuclei
Abstract The influence of the octupole deformation on the structure of high-K isomeric states in the region of heavy even–even actinide nuclei is studied through a reflection asymmetric deformed shell model (DSM). Two-quasiparticle states with...
2010 / P.M. Walker, N. Minkov -
Interactions of non-Abelian global strings
Abstract Non-Abelian global strings are expected to form during the chiral phase transition. They have orientational zero modes in the internal space, associated with the vector-like symmetry SU ...
2008 / Eiji Nakano, Muneto Nitta, Taeko Matsuura -
First observation of two hyperfine transitions in antiprotonic 3He
Abstract We report on the first experimental results for microwave spectroscopy of the hyperfine structure of p ¯ ...
2011 / S. Friedreich, D. Barna, F. Caspers, A. Dax, R.S. Hayano, et al. -
Higgs boson pair production through gauge boson fusion at linear colliders within the general 2HDM
Abstract Inclusive Higgs boson pair production through the mechanism of gauge boson fusion e + ...
2009 / Robert N. Hodgkinson, David López-Val, Joan Solà -
Thermally favourable gauge mediation
Abstract We discuss the thermal evolution of the spurion and messenger fields of ordinary gauge mediation models taking into account the Standard Model degrees of freedom. It is shown that for thermalized messengers the metastable susy breaking...
2011 / Ioannis Dalianis, Zygmunt Lalak -
Squark mass measurement in the long-lived stau scenario at the LHC
Abstract The long-lived stau scenario is an interesting possibility at the LHC. We study squark mass measurements in this scenario; in particular, we show that left- and right-handed squark masses are both measurable. In SUSY events, multiple jets...
2011 / Takumi Ito -
Non-extremal charged rotating black holes in seven-dimensional gauged supergravity
Abstract We obtain the solution for non-extremal charged rotating black holes in seven-dimensional gauged supergravity, in the case where the three rotation parameters are set equal. There are two independent charges, corresponding to gauge fields...
2005 / Z.-W. Chong, M. Cvetič, H. Lü, C.N. Pope -
Non-constant ground states for symmetry-breaking fields in brane world models
Abstract We obtain an approximate analytical solution for the ground state of a bulk scalar field with a double-well potential in the Randall–Sundrum brane world background, in a situation where the boundary conditions rule out a constant field...
2004 / Alan Knapman, David J. Toms -
Single top production in a non-minimal supersymmetric model
Abstract We study single top production at the LHC in a SUSY-QCD model with a heavy Dirac gluino. The presence of a heavy Dirac gluino allows for notable top-up flavour changing neutral currents. In this scenario, we find that the process ...
2010 / M. Herquet, R. Knegjens, E. Laenen -
Is BTZ a separate superselection sector of CTMG?
Abstract We exhibit exact solutions of (positive) matter coupled to original “wrong G-sign” cosmological TMG. They all evolve to conical singularity, rather than to black hole – here negative mass – BTZ. This provides evidence that the latter...
2010 / S. Deser, J. Franklin -
Shear viscosity to entropy density ratio of a relativistic Hagedorn resonance gas
Abstract The new state of matter produced at Relativistic Heavy Ion Collider reveals a strongly coupled quark–gluon plasma with an extremely small shear viscosity to entropy density ratio η / ...
2010 / Subrata Pal -
Field dependence of the magnetocaloric effect in Gd and (Er 1−x Dy x )Al 2 : Does a universal curve exist?2007 / V Franco, A Conde, V. K Pecharsky, K. A Gschneidner
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Parameter Dependencies of Copper Welding with Multi-kW Lasers at 1 Micron Wavelength
Abstract Copper materials gain in importance e.g. in view of the coming electro-mobility and therefore also related joining methods for well conducting, fatigue-proof, corrosion resistant and sealing connections are sought after. Welding of copper...
2011 / Dirk Petring, Vahid Nazery Goneghany