Test of the τ-model of bose–einstein correlations and reconstruction of the source function in hadronic z-boson decay at lep

The CMS Collaboration

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Bose–Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Lévy stable distribution in conjunction with a model where a particle’s momentum is correlated with its space–time point of production, the τ-model. Using this description and the measured rapidity and transverse momentum distributions, the space–time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the τ-model, and this is investigated using an ad hoc modification.

Original languageEnglish
Article number1648
JournalEuropean Physical Journal C
Volume71
Issue number5
DOIs
Publication statusPublished - 2011

Fingerprint

Bosons
particle emission
bosons
Momentum
decay
momentum
transverse momentum
elongation
Elongation
pions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Test of the τ-model of bose–einstein correlations and reconstruction of the source function in hadronic z-boson decay at lep. / The CMS Collaboration.

In: European Physical Journal C, Vol. 71, No. 5, 1648, 2011.

Research output: Contribution to journalArticle

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abstract = "Bose–Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a L{\'e}vy stable distribution in conjunction with a model where a particle’s momentum is correlated with its space–time point of production, the τ-model. Using this description and the measured rapidity and transverse momentum distributions, the space–time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the τ-model, and this is investigated using an ad hoc modification.",
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AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Bajo, A.

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AU - Baksay, L.

AU - Baldew, S. V.

AU - Banerjee, S.

AU - Banerjee, Sw W.

AU - Barczyk, A.

AU - Barillère, R.

AU - Bartalini, P.

AU - Basile, M.

AU - Batalova, N.

AU - Battiston, R.

AU - Bay, A.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berbeco, R.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Biasini, M.

AU - Biglietti, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsár, L.

AU - Csörgő, T.

AU - Debreczeni, J.

AU - Raics, P.

AU - Szillási, Z.

AU - Tarján, P.

AU - Vesztergombi, G.

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