Institute of Physics, Bhubaneswar

About: Institute of Physics, Bhubaneswar is a facility organization based out in Bhubaneswar, Orissa, India. It is known for research contribution in the topics: Large Hadron Collider & Hadron. The organization has 566 authors who have published 1768 publications receiving 64889 citations.

Freeze-out dynamics via charged kaon femtoscopy in √s NN=200 GeV central Au + Au collisions

Abstract: We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from root sNN = 200 GeV Au + Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event-generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass m(T) over the interval of 0.55 <= mT <= 1.15 GeV/c(2). While the kaon radii are adequately described by the m(T) -scaling in the outward and sideward directions, in the longitudinal direction the lowest m(T) value exceeds the expectations from a pure hydrodynamical model prediction.

Experimental studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons

Abstract: We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at the BNL Relativistic Heavy Ion Collider (RHIC). Pairs of back-to-back high-transverse-momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two-and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudorapidity Delta eta or relative azimuthal angle Delta phi from d + Au to central Au + Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties.

Mutual influence of superconductivity and magnetism in strongly correlated cuprates

Abstract: The interplay between superconductivity (SC) and anti-ferromagnetism (AFM) is studied in strongly correlated systems: R 2− x M x CuO 4 (R=Nd, La, Pr, Gd; M=Sr, Ce). It is assumed that SC arises due to BCS pairing mechanism in the presence of AFM in Cu lattices of Cu–O planes. Temperature dependence of SC gap as well as staggered magnetic field are calculated analytically and solved self-consistently with respect to half-filled band situation for different model parameters ( λ 1 and λ 2 being the SC and AFM coupling parameters, respectively). The SC gap is studied in the co-existent phase of SC and AFM.