Physical sciences topic list of research papers
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Nonperturbative vacuum and condensates in QCD below thermal phase transition
Abstract Thermodynamic properties of the QCD nonperturbative vacuum with two light-quarks are studied. It is shown that at low temperatures T≲M π relativistic massive pions can be...
2002 / N.O Agasian -
A new type of superstring in four dimensions
Abstract A bosonic string in twenty six dimensions is effectively reduced to four dimensions by eleven Majorana fermions which are vectors in the bosonic representation SO(d−1,1). By dividing the fermions in two groups, actions can be written down...
2003 / B.B. Deo -
de Sitter brane universe induced by phantom and quantum effects
Abstract Five-dimensional braneworld cosmology with de Sitter (inflationary) brane universe induced by classical and quantum matter is discussed. It is shown that negative energy phantom field with quantum CFT supports the creation of de Sitter...
2003 / Shin'ichi Nojiri, Sergei D. Odintsov -
Heterotic Yukawa couplings and continuous Wilson lines
Abstract Realistic heterotic string models require the presence of the Wilson lines. We study the effect of continuous Wilson lines on the heterotic Yukawa couplings for Abelian orbifold compactifications and find that the presence of continuous...
2003 / Tatsuo Kobayashi, Oleg Lebedev -
To what extent does the latest SNO result guarantee the proton stability?
Abstract Experimental data accumulated by the SNO detector (containing 1000 t of D2O) on neutral-current solar neutrinos interactions [Phys. Rev. Lett. 89 (2002) 011301] have been used to set the best up-to-date life-time limit on the proton...
2003 / Yu.G Zdesenko, V.I Tretyak -
A general-covariant concept of particles in curved background
Abstract A local current of particle density for scalar fields in curved background is constructed. The current depends on the choice of a two-point function. There is a choice that leads to local non-conservation of the current in a time-dependent...
2002 / Hrvoje Nikolić -
Unification of weak and hypercharge interactions at the TeV scale
Abstract A realistic SU(3) C ×SU(3) W unified theory is constructed with a TeV sized extra dimension compactified on the orbifold S 1/Z ...
2002 / Lawrence J. Hall, Yasunori Nomura -
Chiral extrapolation: an analogy with effective field theory
Abstract We draw an analogy between the chiral extrapolation of lattice QCD calculations from large to small quark masses and the interpolation between the large mass (weak field) and small mass (strong field) limits of the Euler–Heisenberg QED...
2010 / Gerald V. Dunne, Anthony W. Thomas, Stewart V. Wright -
Eternally accelerating universe without event horizon
Abstract Increasing astronomical evidence indicates that the expansion of the universe is accelerating. By simply solving Einstein equations we show in this Letter that a wide class of generic quintessence models leading to eternal acceleration is...
2002 / Pedro F González-Dı́az -
Are occupation numbers observable?
Abstract The question of whether occupation numbers and momentum distributions of nucleons in nuclei are observables is considered from an effective field theory perspective. Field redefinitions lead to variations that imply the answer is negative,...
2002 / R.J. Furnstahl, H.-W. Hammer -
Classical behaviour after a phase transition
Abstract We analyze the onset of classical behaviour after a second-order phase transition by considering a scalar field theory in which the system-field interacts with its environment, represented both by further fields and by its own...
2002 / F.C. Lombardo, F.D. Mazzitelli, R.J. Rivers -
Acceleration through X-type coalescence in a small energetic flare2004 / Jun-Ichi Sakai, Cornelis de Jager
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Relationship between X(5) models and the interacting boson model2010 / José Barea, José M. Arias, José Enrique García-Ramos
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Magnetic properties and antiferromagnetic Cu ordering in Pr2CuO42005 / P. Allenspach, S. -W. Choeng, A. Dommann, P. Fischer, Z. Fisk, et al.
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A comment on form factor mass singularities in flavor-changing neutral currents2005 / M. A. Sanchis
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Conformal symmetry of the Lange–Neubert evolution equation
Abstract The Lange–Neubert evolution equation describes the scale dependence of the wave function of a meson built of an infinitely heavy quark and light antiquark at light-like separations, which is the hydrogen atom problem of QCD. It has numerous ...
2014 / V.M. Braun, A.N. Manashov -
Depth dependent order/disorder transitions in iron-rich thin films grown on i-Al–Pd–Mn studied by medium energy ion scattering
Abstract This paper reports a medium energy ion scattering study of the room temperature deposition of Fe on the five-fold surface of i-Al70Pd21Mn9. At low coverage (~1 ML) growth results in a disordered alloy film with significant Al content. At...
2013 / T.C.Q. Noakes, J. Parle, P. Nugent, H.R. Sharma, J.A. Smerdon, et al. -
The challenge for single field inflation with BICEP2 result
Abstract The detection of B-mode power spectrum by the BICEP2 collaboration constrains the tensor-to-scalar ratio r = ...
2014 / Qing Gao, Yungui Gong -
Dilaton quantum gravity
Abstract We propose a simple fixed-point scenario in the renormalization flow of a scalar dilaton coupled to gravity. This would render gravity non-perturbatively renormalizable and thus constitute a viable theory of quantum gravity. On the fixed...
2013 / T. Henz, J.M. Pawlowski, A. Rodigast, C. Wetterich -
Impact of Triaxiality on the Emission and Absorption of Neutrons and Gamma Rays in Heavy Nuclei
Abstract For many spin-0 target nuclei neutron capture measurements yield information on level densities at the neutron separation energy. Also the average photon width has been determined from capture data as well as Maxwellian average cross...
2013 / Eckart Grosse, Arnd R. Junghans, Ralph Massarczyk