TWO-PARTICLE CORRELATIONS FROM THE q-BOSON VIEWPOINT

نویسنده

  • D. V. Anchishkin
چکیده

We propose and develop to some extent a novel approach, which allows us to effectively describe, for relativistic heavy-ion collisions, the empirically observed deviation from unity of the intercept λ (i.e. the measured value corresponding to zero relative momentum p of two registered identical pions or kaons) of the two-particle correlation function C(p,K). The approach is based on the use of two versions of the so-called q-deformed oscillators and the corresponding picture of ideal gases of q-bosons. By these techniques the intercept λ is put into direct correspondence with the deformation parameter q. For fixed deformation strength, the model predicts dependence of the intercept λ on the pion pair mean momentum K.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : h ep - p h / 03 08 30 6 v 1 2 9 A ug 2 00 3 Phase - space density in heavy - ion collisions revisited

We derive the phase space density of bosons from a general boson interfer-ometry formula. We find that the phase space density is connected with the two-particles and the single particle density distribution functions. If the bo-son density is large, the two particles density distribution function can not be expressed as a product of two single particle density distributions. However , if the b...

متن کامل

Quantum Mechanical Localization Effects for Bose-Einstein Correlations

For a set of N identical massive boson wavepackets with optimal initial quantum mechanical localization, we derive the Hanbury-Brown/Twiss (HBT) two-particle correlation function. Our result provides finite multiplicity corrections to the coherent state formalism and allows to trace back an error in the so-called cos-prescription. It suggests that what the HBT radius parameters in very small bo...

متن کامل

53 v 1 2 3 O ct 1 99 7 Boson mappings and four - particle correlations in algebraic neutron - proton pairing models

Neutron-proton pairing correlations are studied within the context of two solvable models, one based on the algebra SO(5) and the other on the algebra SO(8). Boson-mapping techniques are applied to these models and shown to provide a convenient methodological tool both for solving such problems and for gaining useful insight into general features of pairing. We first focus on the SO(5) model, w...

متن کامل

Multiplicity Fluctuations and Bose-einstein Correlations in Dis at Hera

Various aspects of multihadron production can be revealed through multiplicity fluctuations and particle correlations studies. The fluctuations are sensitive to soft particle dynamics and their measurements allow to test perturbative QCD 1 and local parton hadron duality (LPHD) hypothesis . In BEC studies , the correlation function gives information about the shape, size and lifetime of the bos...

متن کامل

Multi-boson Effects in Bose-einstein Interferometry

Multi-boson symmetrization effects on two-particle Bose-Einstein interferometry are studied for ensembles with arbitrary multiplicity distributions. In the general case one finds interesting residual correlations which require a modified framework for extracting information on the source geometry from two-particle correlation measurements. In sources with high phase-space densities, multi-boson...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999