Physical sciences topic list of research papers
-
Exact Hawking radiation of scalars, fermions, and bosons using the tunneling method without back-reaction
Abstract Hawking radiation is studied for arbitrary scalars, fermions and spin-1 bosons, using a tunneling approach, to every order in ℏ but ignoring back-reaction effects. It is shown that the additional quantum terms yield no new contribution to...
2011 / Alexandre Yale -
Constraining warm inflation with the cosmic microwave background
Abstract We discuss the spectrum of scalar density perturbations from warm inflation when the friction coefficient Γ in the inflaton equation is dependent on the inflaton field. The spectral index of scalar fluctuations depends on a new slow-roll...
2004 / Lisa M.H. Hall, Ian G. Moss, Arjun Berera -
Double neutron/proton ratio of nucleon emissions in isotopic reaction systems as a robust probe of nuclear symmetry energy
Abstract The double neutron/proton ratio of nucleon emissions taken from two reaction systems using four isotopes of the same element, namely, the neutron/proton ratio in the neutron-rich system over that in the more symmetric system, has the...
2006 / Bao-An Li, Lie-Wen Chen, Gao-Chan Yong, Wei Zuo -
Anomalous commutators and electroweak baryogenesis
Abstract Electroweak vacuum transition processes (sphalerons) in the early Universe provide a possible explanation of the baryon asymmetry. Combining this physics with the anomalous commutators of Adler and Boulware and renormalization group...
2004 / Steven D Bass -
Supermodels for early LHC
Abstract We investigate which new physics signatures could be discovered in the first year of the LHC, beyond the expected sensitivity of the Tevatron data by the end of 2010. We construct “supermodels”, for which the LHC sensitivity even with only...
2010 / Christian W. Bauer, Zoltan Ligeti, Martin Schmaltz, Jesse Thaler, Devin G.E. Walker -
On SUSY breaking from NL/L SUSY relation
Abstract We show in two-dimensional space–time ( d = 2 ) the relation between an N = ...
2010 / Kazunari Shima, Motomu Tsuda -
A phenomenology analysis of the tachyon warm inflation in loop quantum cosmology
Abstract We investigate the warm inflation condition in loop quantum cosmology. In our consideration, the system is described by a tachyon field interacted with radiation. The exponential potential function, V ...
2011 / Kui Xiao, Jian-Yang Zhu -
Universality of the Collins–Soper–Sterman nonperturbative function in vector boson production
Abstract We revise the b ∗ model for the Collins–Soper–Sterman resummed form factor to improve description of the...
2006 / Anton V. Konychev, Pavel M. Nadolsky -
Soft-gluon cancellation, phases and factorization with initial-state partons
Abstract We outline arguments for the cancellation of soft singularities in transition probabilities and parton distributions with incoming partons and Wilson lines, and with observed jets or heavy colored particles in the final states. We show the...
2008 / S. Mert Aybat, George Sterman -
Could saturation effects be visible in a future electron–ion collider?
Abstract We expect to observe parton saturation in a future electron–ion collider. In this Letter we discuss this expectation in more detail considering two different models which are in good agreement with the existing experimental data on nuclear...
2008 / E.R. Cazaroto, F. Carvalho, V.P. Gonçalves, F.S. Navarra -
Event-by-event study of DCC-like fluctuation in ultra-relativistic nuclear collisions
Abstract A method based on sliding window scheme is developed to search for patches in the pseudorapidity-azimuth plane, on an event-by-event basis, having unusual fluctuation in the neutral pion fraction which may arise due to the formation of...
2006 / M.M. Aggarwal, G. Sood, Y.P. Viyogi -
Coherent QCD multiple scattering in proton–nucleus collisions
Abstract We argue that high energy proton–nucleus (p + A) collisions provide an excellent laboratory for studying nuclear size enhanced parton multiple scattering where power corrections to the leading twist perturbative QCD factorization approach...
2005 / Jian-Wei Qiu, Ivan Vitev -
On the mass differences between the scalar and pseudoscalar heavy-light mesons
Abstract We discuss the recent experimental observation which suggested that the mass difference between the scalar and pseudoscalar heavy-light mesons is larger for the non-strange states than for the strange ones. After computing the chiral...
2004 / Damir Bećirević, Svjetlana Fajfer, Saša Prelovšek -
Symmetric vs asymmetric nucleon-induced fission of thorium up to 200 MeV
Abstract The transition from asymmetric to symmetric fission as dependent on the excitation energy and nucleon composition of fissioning Th and Pa nuclei is investigated for the 232Th(n, F) and 232Th(p, F) reactions, respectively. Observed...
2007 / V.M. Maslov -
Ginzburg–Landau approach to the three flavor LOFF phase of QCD
Abstract We explore, using a Ginzburg–Landau expansion of the free energy, the Larkin–Ovchinnikov–Fulde–Ferrell (LOFF) phase of QCD with three flavors, using the NJL four-fermion coupling to mimic gluon interactions. We find that, below the point...
2005 / R. Casalbuoni, R. Gatto, N. Ippolito, G. Nardulli, M. Ruggieri -
Forward–backward asymmetry of top quark in unparticle physics
Abstract The updated CDF measurement of the forward–backward asymmetry A FB in the top quark production ...
2010 / Chuan-Hung Chen, G. Cvetič, C.S. Kim -
Lattice HQET with exponentially improved statistical precision
Abstract We introduce an alternative discretization for static quarks on the lattice retaining the O(a)-improvement properties of the Eichten–Hill action. In this formulation, statistical fluctuations are reduced by a factor which grows...
2003 / Michele Della Morte, Stephan Dürr, Jochen Heitger, Heiko Molke, Juri Rolf, et al. -
Non-relativistic strings and branes as non-linear realizations of Galilei groups
Abstract We construct actions for non-relativistic strings and membranes purely as Wess–Zumino terms of the underlying Galilei groups.
2004 / Jan Brugues, Thomas Curtright, Joaquim Gomis, Luca Mezincescu -
Graviton as a Goldstone boson: Nonlinear sigma model for tensor field gravity
Abstract Spontaneous Lorentz invariance violation (SLIV) realized through a nonlinear tensor field constraint H μ ...
2010 / J.L. Chkareuli, J.G. Jejelava, G. Tatishvili -
Unitarizing Higgs inflation
Abstract We consider a simple extension of the Standard Model Higgs inflation with one new real scalar field which preserves unitarity up to the Planck scale. The new scalar field (called sigma) completes in the ultraviolet the theory of Higgs...
2010 / Gian F. Giudice, Hyun Min Lee