Bounds for Bose-Einstein correlation functions

Plümer, M.; Razumov, L. V.; Weiner, R.M.

doi:10.1103/physrevd.49.4434

Cited by 6 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This misapplication of the current formalism invalidates completely the conclusions of ref. [83] and confirms and strengthens the criticism expressed in [88], [89], [82] of the papers [84]- [87]. The fact that for unpolarized photons MaxC 2 (k, k) is 2 and not 1.5 as stated in [83], can be understood by realizing that a system of unpolarized photons consists on the average of 50% photons with the same helicities and 50% photons with opposite helicities.…”

Section: Photon Interferometry Upper Bounds Of Becsupporting

confidence: 72%

“…Similar statements can be found in previous papers [84], [85], [86], [87] where more detailed applications concerning heavy ion reactions based on this assertion of [83] are presented. Some of the papers quoted above were criticized immediately after their publication in [88], [89] [82] and the paper [83] was written with the intention to "settle" this "controversy".…”

Section: Photon Interferometry Upper Bounds Of Becmentioning

confidence: 99%

See 1 more Smart Citation

Boson interferometry in high-energy physics

2000

View full text Add to dashboard Cite

Intensity interferometry and in particular that due to Bose Einstein correlations (BEC) constitutes at present the only direct experimental method for the determination of sizes and lifetimes of sources in particle and nuclear physics. The measurement of these is essential for an understanding of the dynamics of strong interactions which are responsible for the existence and properties of atomic nuclei.Moreover a new state of matter, quark matter, in which the ultimate constituents of matter move freely, is within the reach of present accelerators or those under construction. The confirmation of the existence of this new state is intimately linked with the determination of its space-time properties. Furthermore BEC provides information about quantum coherence which lies at the basis of the phenomenon *

show abstract

Section: Photon Interferometry Upper Bounds Of Becsupporting

confidence: 72%

Section: Photon Interferometry Upper Bounds Of Becmentioning

confidence: 99%

Boson interferometry in high-energy physics

2000

View full text Add to dashboard Cite

show abstract

“…As was discussed in Ref. [4], property (b) is inconsistent with the quantum statistical bounds for a purely chaotic source.…”

mentioning

confidence: 86%

“…[1], however, a difFerent form was used for the two-particle inclusive distribution, namely, p~[ki, kg) = pi(ki)pg(k, ) + J d x, d'z, m(z, , k, ) w(2, , k, ) cos(ST"Sk"). (4) The form (4) was also derived in Ref. [7] as an approximation to the complete, nonanalytic result.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Photon interferometry of quark-gluon dynamics reexamined

et al. 1994

Self Cite

View full text Add to dashboard Cite

The Bose-Einstein correlations of photons emitted from a longitudinally expanding system of excited matter produced in ultrarelativistic heavy ion collisions are studied. Two effects found in recent calculationsthat the correlation function in longitudinal direction exhibits oscillations, and that it takes values below unityare demonstrated to be numerical artefacts and/or the results of inappropriate approximations.Thus, the general quantum statistical bounds for the two particle correlation function of a chaotic source with Gaussian Buctuations are confirmed. Two different expressions for the two-photon inclusive distribution are considered. Depending on which of the two expressions is used in the calculation, the width of the correlation function may vary by as much as 30%.PACS number(s): 05.30. Jp, 13.85.Hd, 25.75.+r, 12.40.Ee

show abstract

Dynamical properties of heavy-ion collisions from photon intensity interferometry

Razumov

Weiner

1993

Physics Letters B

View full text Add to dashboard Cite

We consider here the bremsstrahlung emission of photons at low and intermediate energies E lab ≤ 1000MeV /u of the projectile. and derive expressions more general than previous results obtained by Neuhauser which were limited to the case of isotropic systems. We find that the two-photon correlation function strongly depends not only on the space-time properties of the collision region but also on the dynamics of the proton-neutron scattering process in nuclear matter. As a consequence of polarisation correlations it turns out that for a purely chaotic source the intercept of the correlation function of photons can reach the value 3 (as compared with the maximum value 2 for isotropic systems). Furthermore even for "hard" photons (E γ > 25MeV ) the maximum of the correlation function can reach the value of 2 in contrast with the value of 1.5 derived by Neuhauser for this case. The formulae obtained in this paper which include also the possible presence of a coherent component can be used as a basis for a systematic analysis of photon intensity-interferometry experiments. * E.Mail: razumov@convex.hrz.Uni-Marburg.de † E. Mail: WEINER@vax.hrz.Uni-Marburg.de 1 The photon emission from proton-proton collisions is of quadrupole form and therefore highly suppressed as compared with the dipole radiation from proton-neutron collisions.

show abstract

Bounds for Bose-Einstein correlation functions

Cited by 6 publications

References 19 publications

Boson interferometry in high-energy physics

Boson interferometry in high-energy physics

Photon interferometry of quark-gluon dynamics reexamined

Dynamical properties of heavy-ion collisions from photon intensity interferometry

Contact Info

Product

Resources

About