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Correlations of two like charged pions emitted from a hot and charged spherically expanding nuclear system are investigated. The motion of the pions is described quantum mechanically using the Klein-Gordon equation which includes Coulomb…

核理论 · 物理学 2009-10-31 H. W. Barz

Using optical model calculations it has recently been shown that refractive phenomena from the collective mean field can significantly alter the sizes inferred from two-pion correlations. We demonstrate that such effects can be accounted…

核理论 · 物理学 2009-11-11 Scott Pratt

Bose-Einstein symmetrization can lead to correlations between out going identical particles which reflect the space-time extent of the collision process. At LEP and LEPII these correlations have been studied as a function of a single…

高能物理 - 唯象学 · 物理学 2009-10-31 Mark Smith

Two particle correlations are used to extract information about the characteristic size of the system in proton-proton and heavy ion collisions. The size of the system can be extracted from the Bose-Einstein quantum mechanical effect for…

高能物理 - 实验 · 物理学 2011-01-28 Nicolas Bock

The peak of the two-particle Bose-Einstein correlation functions has a very interesting structure. It is often believed to have a multivariate Gaussian form. We show here that for the class of stable distributions, characterized by the…

核理论 · 物理学 2009-11-10 T. Csorgo , S. Hegyi , W. A. Zajc

We develop a reformulation of the functional integral for bosons in terms of bilocal fields. Correlation functions correspond to quantum probabilities instead of probability amplitudes. Discrete and continuous global symmetries can be…

高能物理 - 理论 · 物理学 2010-04-14 S. Floerchinger

Two-particle two-hole contributions to electromagnetic response functions are computed in a fully relativistic Fermi gas model. All one-pion exchange diagrams that contribute to the scattering amplitude in perturbation theory are…

核理论 · 物理学 2011-11-10 J. E. Amaro , C. Maieron , M. B. Barbaro , J. A. Caballero , T. W. Donnelly

The distributions of two-jet event shapes contain information on hadronization in QCD. Near the two-jet limit, these distributions can be described by convolutions of nonperturbative event shape functions with the same distributions…

高能物理 - 唯象学 · 物理学 2008-11-26 Christopher Lee , George Sterman

Two-particle rapidity (or pseudorapidity) correlation function $C(y_1, y_2)$ was used in analysing fluctuation of particle density distribution in rapidity in high-energy heavy-ion collisions. In our research, we argue that for a centrality…

核理论 · 物理学 2017-05-22 Ronghua He , Jing Qian , Lei Huo

Imaging of sources from data within the intensity interferometry is discussed. In the two-pion case, the relative pion source function may be determined through the Fourier transformation of the correlation function. In the proton-proton…

核理论 · 物理学 2009-10-30 David A. Brown , Pawel Danielewicz

A theoretical formulation for the two-point correlation function on a light-cone is developed in the redshift space. On the basis of the previous work by Yamamoto & Suto (1999), in which a theoretical formula for the two-point correlation…

天体物理学 · 物理学 2009-10-31 Hiroaki Nishioka , Kazuhiro Yamamoto

Composite bosons made of two bosonic constituents exhibit deviations from ideal bosonic behavior due to their substructure. This deviation is reflected by the normalization ratio of the quantum state of N composites. We find a set of…

量子物理 · 物理学 2014-01-07 Malte C. Tichy , Peter Alexander Bouvrie , Klaus Mølmer

Two-particle correlation measurements and analysis are an important component of the relativistic heavy-ion physics program. In particular, particle pair-number correlations on two-dimensional transverse momentum ($p_t$) allow unique access…

核实验 · 物理学 2017-01-04 Robert L. Ray , Prabhat Bhattarai

The Bose-Einstein correlations of photons emitted {}from a longitudinally expanding system of excited matter produced in ultrarelativistic heavy ion collision are studied. Two effects found in recent calculations -- that the correlation…

高能物理 - 唯象学 · 物理学 2009-09-25 A. Timmermann , M. Pluemer , L. V. Razumov , R. M. Weiner

The Monte Carlo toy model of Bose-Einstein correlations is considered to make a best choice from different reference distributions. It occurs that the minimal bias in the Bose-Einstein correlation parameters estimation is provided by the…

高能物理 - 唯象学 · 物理学 2012-12-13 V. A. Schegelsky

A wavepacket model for a system of free pions, which takes into account the full permutation symmetry of the wavefunction and which is suitable for any phase space parametrization is developed. The properties of the resulting mixed…

核理论 · 物理学 2016-09-08 H. Merlitz , D. Pelte

The aim of the present article is to introduce a concept which allows to generalise the notion of Poissonian pair correlation, a second-order equidistribution property, to higher dimensions. Roughly speaking, in the one-dimensional setting,…

Approximate expressions for correlation functions in binary inhomogeneous mixtures are derived in a framework of the mesoscopic theory [Ciach A., Mol. Phys., 2011, {\textbf{109}}, 1101]. Fluctuation contribution is taken into account in a…

软凝聚态物质 · 物理学 2020-05-26 A. Ciach , O. Patsahan , A. Meyra

The quantum statistics (QS) correlations of identical bosons are well known to be sensitive to the space-time extent and dynamics of the particle emitting source in high-energy collisions. While two-pion correlations are most often…

核理论 · 物理学 2015-07-22 Dhevan Gangadharan

The effect of the continuous emission hypothesis on the two-pion Bose-Einstein correlation function is discussed and compared with the corresponding results based on the usual freeze-out. Sizeable differences in the correlation function…

高能物理 - 唯象学 · 物理学 2009-10-31 Frederique Grassi , Yogiro Hama , Sandra S. Padula , Otavio Socolowski