scholarly journals Improved Description of Bose–Einstein Correlation Function

2006 ◽  
Vol 25 (1) ◽  
pp. 135-139
Author(s):  
T. Novák ◽  
T. Novák ◽  
Collaboration L3 ◽  
Collaboration L3
Keyword(s):  
Correlation Function ◽  
Bose Einstein ◽  
Einstein Correlation

scholarly journals Femtoscopic and Nonfemtoscopic Two-Particle Correlations inA+Aandp+pCollisions at RHIC and LHC Energies

2013 ◽  
Vol 2013 ◽  
pp. 1-23 ◽  
Author(s):  
Yu. M. Sinyukov ◽  
S. V. Akkelin ◽  
Iu. A. Karpenko ◽  
V. M. Shapoval
Keyword(s):  
Correlation Function ◽  
Simple Model ◽  
Proton Proton ◽  
Proton Collisions ◽  
Basic Model ◽  
Kaon Interferometry ◽  
Bose Einstein ◽  
Proton Proton Collisions ◽  
Theoretical Results ◽  
Einstein Correlation

The theoretical review of the last femtoscopy results for the systems created in ultrarelativisticA+A,p+p, andp+Pbcollisions is presented. The basic model, allowing to describe the interferometry data at SPS, RHIC, and LHC, is the hydrokinetic model. The model allows one to avoid the principal problem of the particlization of the medium at nonspace-like sites of transition hypersurfaces and switch to hadronic cascade at a space-like hypersurface with nonequilibrated particle input. The results for pion and kaon interferometry scales inPb+PbandAu+Aucollisions at LHC and RHIC are presented for different centralities. The new theoretical results as for the femtoscopy of small sources with sizes of 1-2 fm or less are discussed. The uncertainty principle destroys the standard approach of completely chaotic sources: the emitters in such sources cannot radiate independently and incoherently. As a result, the observed femtoscopy scales are reduced, and the Bose-Einstein correlation function is suppressed. The results are applied for the femtoscopy analysis ofp+pcollisions ats=7 TeV LHC energy andp+Pbones ats=5.02 TeV. The behavior of the corresponding interferometry volumes on multiplicity is compared with what is happening for centralA+Acollisions. In addition the nonfemtoscopic two-pion correlations in proton-proton collisions at the LHC energies are considered, and a simple model that takes into account correlations induced by the conservation laws and minijets is analyzed.

scholarly journals Bose–Einstein correlation measurements at CMS

2014 ◽  
Vol 931 ◽  
pp. 1061-1065 ◽  
Author(s):  
Sunil Manohar Dogra
Keyword(s):  
Bose Einstein ◽  
Einstein Correlation

Study of event mixing for Bose–Einstein correlations in reactions with ππ X final states around 1 GeV

2017 ◽  
Vol 32 (23) ◽  
pp. 1750118
Author(s):  
Q. H. He
Keyword(s):  
Correlation Function ◽  
Momentum Distribution ◽  
Final States ◽  
Relative Momentum ◽  
Final State ◽  
Numerical Tests ◽  
Pion Energy ◽  
Simulation Results ◽  
Bose Einstein ◽  
Good Agreement

We present a new event mixing cut condition, named energy sum (ES) cut, aiming to investigate two-pion Bose–Einstein correlations (BEC) in reaction with only two identical pions among three final state particles. Unlike the previous proposed pion energy cut, which rejects original events with either pion’s energy beyond a given level, this cut does not eliminate any original events and hence improves the statistics of both original events and mixed events. It selects mixed events in terms of a weight proportional to the two-pion energy sum distribution of original events. Numerical tests using the [Formula: see text] events are carried out to verify the validity of the energy sum cut. Simulation results show this cut is able to reproduce the relative momentum distribution of the original events in the absence of BEC effects. Its ability to observe BEC effects and to extract correct BEC parameters is verified using event sample in the presence of BEC effects. It is found that the BEC effects can be obviously observed as an enhancement in the correlation function and the BEC parameters extracted by this event mixing cut are in good agreement with input values.

Bose-Einstein correlation of kaons in Si+Au collisions at 14.6AGeV/c

1993 ◽  
Vol 70 (8) ◽  
pp. 1057-1060 ◽  
Author(s):  
Y. Akiba ◽  
D. Beavis ◽  
P. Beery ◽  
H. C. Britt ◽  
B. Budick ◽  
...  
Keyword(s):  
Bose Einstein ◽  
Einstein Correlation

scholarly journals m⊥dependence of Bose-Einstein correlation radii

1996 ◽  
Vol 54 (5) ◽  
pp. R2155-R2158 ◽  
Author(s):  
B. R. Schlei ◽  
N. Xu
Keyword(s):  
Bose Einstein ◽  
Einstein Correlation
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