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Bose-Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon | | HERMES Collaboration
; A. Airapetian
; N. Akopov
; Z. Akopov
; E.C. Aschenauer
; W. Augustyniak
; R. Avakian
; A. Avetissian
; E. Avetisyan
; S. Belostotski
; N. Bianchi
; H.P. Blok
; A. Borissov
; V. Bryzgalov
; J. Burns
; M. Capiluppi
; G.P. Capitani
; E. Cisbani
; G. Ciullo
; M. Contalbrigo
; P.F. Dalpiaz
; W. Deconinck
; R. De Leo
; E. De Sanctis
; M. Diefenthaler
; P. Di Nezza
; M. Düren
; G. Elbakian
; F. Ellinghaus
; E. Etzelmüller
; R. Fabbri
; A. Fantoni
; L. Felawka
; S. Frullani
; G. Gapienko
; V. Gapienko
; J. Garay García
; F. Garibaldi
; G. Gavrilov
; V. Gharibyan
; F. Giordano
; S. Gliske
; M. Hartig
; D. Hasch
; Y. Holler
; I. Hristova
; Y. Imazu
; A. Ivanilov
; H.E. Jackson
; S. Joosten
; R. Kaiser
; G. Karyan
; T. Keri
; E. Kinney
; A. Kisselev
; V. Korotkov
; V. Kozlov
; P. Kravchenko
; V.G. Krivokhijine
; L. Lagamba
; L. Lapikás
; I. Lehmann
; P. Lenisa
; A. López Ruiz
; W. Lorenzon
; X.-G. Lu
; B.-Q. Ma
; D. Mahon
; N.C.R. Makins
; Y. Mao
; B. Marianski
; A. Martinez de la Ossa
; H. Marukyan
; Y. Miyachi
; A. Movsisyan
; M. Murray
; A. Mussgiller
; E. Nappi
; Y. Naryshkin
; A. Nass
; M. Negodaev
; W.-D. Nowak
; L.L. Pappalardo
; R. Perez-Benito
; A. Petrosyan
; P.E. Reimer
; A.R. Reolon
; C. Riedl
; K. Rith
; G. Rosner
; A. Rostomyan
; J. Rubin
; D. Ryckbosch
; Y. Salomatin
; A. Schäfer
; G. Schnell
; B. Seitz
; T.-A. Shibata
; V. Shutov
; M. Stahl
; M. Stancari
; M. Statera
; J.J.M. Steijger
; S. Taroian
; A. Terkulov
; R. Truty
; A. Trzcinski
; M. Tytgat
; Y. Van Haarlem
; C. Van Hulse
; D. Veretennikov
; V. Vikhrov
; I. Vilardi
; S. Wang
; S. Yaschenko
; Z. Ye
; S. Yen
; B. Zihlmann
; P. Zupranski
; | | Date: |
12 May 2015 | | Abstract: | Bose-Einstein correlations of like-sign charged hadrons produced in
deep-inelastic electron and positron scattering are studied in the HERMES
experiment using nuclear targets of $^1$H, $^2$H, $^3$He, $^4$He, N, Ne, Kr,
and Xe. A Gaussian approach is used to parametrize a two-particle correlation
function determined from events with at least two charged hadrons of the same
sign charge. This correlation function is compared to two different empirical
distributions that do not include the Bose-Einstein correlations. One
distribution is derived from unlike-sign hadron pairs, and the second is
derived from mixing like-sign pairs from different events. The extraction
procedure used simulations incorporating the experimental setup in order to
correct the results for spectrometer acceptance effects, and was tested using
the distribution of unlike-sign hadron pairs. Clear signals of Bose-Einstein
correlations for all target nuclei without a significant variation with the
nuclear target mass are found. Also, no evidence for a dependence on the
invariant mass W of the photon-nucleon system is found when the results are
compared to those of previous experiments. | | Source: | arXiv, 1505.3102 | | Services: | Forum | Review | PDF | Favorites | |
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