Shukla, Deepshikha Nogga, Andreas Phillips, Daniel R.

Motivated by the fact that a polarized ${}^3$He nucleus behaves as an `effective' neutron target, we examine manifestations of neutron electromagnetic polarizabilities in elastic Compton scattering from the Helium-3 nucleus. We calculate both unpolarized and double-polarization observables using chiral perturbation theory to next-to-leading order (...

Wetterich, Christof

We derive a new exact evolution equation for the scale dependence of an effective action. The corresponding equation for the effective potential permits a useful truncation. This allows one to deal with the infrared problems of theories with massless modes in less than four dimensions which are relevant for the high temperature phase transition in ...

Rozynek, Jacek Wilk, Grzegorz

The critical phenomena in strongly interaction matter are generally investigated using the mean-field model and are characterized by well defined critical exponents. However, such models provide only average properties of the corresponding order parameters and neglect altogether their possible fluctuations. Also the possible long range effect are n...

Aitchison, Ian J. R. Close, Frank E. Gal, Avraham Millener, D. John

Professor Richard H. Dalitz passed away on January 13, 2006. He was almost 81 years old and his outstanding contributions are intimately connected to some of the major breakthroughs of the 20th century in particle and nuclear physics. These outstanding contributions go beyond the Dalitz Plot, Dalitz Pair and CDD poles that bear his name. He pioneer...

Bleibel, J. Bravina, L. V. Zabrodin, E. E.

Multiplicity, rapidity and transverse momentum distributions of hadrons produced both in inelastic and nondiffractive $pp$ collisions at energies from $\sqrt{s} = 200$\,GeV to 14\,TeV are studied within the Monte Carlo quark-gluon string model (QGSM). Good agreement with the available experimental data up to $\sqrt{s} = 13$\,TeV is obtained, and pr...

Hagedorn, Rolf

De Sanctis, M. Giannini, M. M. Santopinto, E. Vassallo, A.

New results about the electromagnetic form factors of the nucleon are obtained with a semirelativistic version of the hypercentral constituent quark model (hCQM) and a relativistic current. The complex structure of the constituent quarks is taken into account implicitly by means of phenomenological constituent quark form factors. We obtain a detail...

Garistov, Vladimir P. Solnyshkin, A.A. Adam, I. Egorov, O.K. Islamov, A. Silaev, V.I. Bogachenko, D.D.

The symplectic realization of the phenomenological algebraic model is employed for the description of the structure of different low lying collective excited states in heavy even-even nuclei. First we illustrate the parabolic distribution of the energies of low lying collective states and further within the Interacting Vector Boson Model (IVBM) we ...

Feng, Sheng-Qin Xiong, Wei

We find that collective flow model which can successfully analyze charged particle distributions at AGS and lower SPS (less than 20Gev/n). but fails to analyze that of at RHIC. The tails of distribution of charged particle at RHIC has a jump from the collective flow model calculation as the energy increases. Thermalization Component Model is presen...

Özen, C. Zinner, N. T.

The physics of a two-component cold fermi gas is now frequently addressed in laboratories. Usually this is done for large samples of tens to hundreds of thousands of particles. However, it is now possible to produce few-body systems (1-100 particles) in very tight traps where the shell structure of the external potential becomes important. A system...