2 PION BOSE-EINSTEIN CORRELATIONS IN (P)OVER-BAR-P ANNIHILATIONS AT REST (Journal article)

Adler, R./ Alhalel, T./ Angelopoulos, A./ Apostolakis, A./ Aslanides, E./ Backenstoss, G./ Bee, C. P./ Bennet, J./ Bertin, V./ Bienlein, J. K./ Bloch, P./ Bula, C./ Carlson, P./ Carvalho, J./ Cawley, E./ Charalambous, S./ Chardalas, M./ Chardin, G./ Danielsson, M./ Dedoussis, S./ Dejardin, M./ Derre, J./ Dodgson, M./ Dousse, J. C./ Duclos, J./ Ealet, A./ Eckart, B./ Eleftheriadis, C./ Evangelou, I./ Faravel, L./ Fassnacht, P./ Faure, J. L./ Felder, C./ Ferreiramarques, R./ Fetscher, W./ Fidecaro, M./ Filipcic, A./ Francis, D./ Fry, J. R./ Fuglesang, C./ Gabathuler, E./ Gamet, R./ Garreta, D./ Geralis, T./ Gerber, H. J./ Go, A./ Gumplinger, P./ Guyot, C./ Harrison, P. F./ Hayman, P. J./ Heyes, W. G./ Hollander, R. W./ Jansson, K./ Johner, H. U./ Jonand, K./ Kerek, A./ Kern, J./ Kettle, P. R./ Kochowski, C./ Kokkas, P./ Krueger, R./ Lawry, T./ Legac, R./ Liolios, A./ Machado, E./ Maley, P./ Mandic, I./ Manthos, N./ Marel, G./ Mikuz, M./ Miller, J. P./ Montanet, F./ Nakada, T./ Onofre, A./ Pagels, B./ Pavlopoulos, P./ Pelucchi, F./ Dacunha, J. P./ Policarpo, A./ Polivka, G./ Postma, H./ Rickenbach, R./ Roberts, B. L./ Rozaki, E./ Ruf, T./ Sacks, L./ Sakeliou, L./ Sanders, P./ Santoni, C./ Sarigiannis, K./ Schafer, M./ Schaller, L./ Schopper, A./ Schune, P./ Soares, A./ Szilagyi, S./ Tauscher, L./ Thibault, C./ Touchard, F./ Touramanis, C./ Triantis, F./ Troester, D. A./ Vanbeveren, E./ Vandenputte, M./ Vaneijk, C. W. E./ Varner, G./ Vlachos, S./ Weber, P./ Wigger, O./ Witzig, C./ Wolter, O./ Yeche, C./ Zavrtanik, D./ Zimmerman, D.


Bose-Einstein (BE) correlations between like-sign charged pions were studied in ppBAR annihilations at rest into four-prong events, using data taken with the CPLEAR detector at LEAR (CERN). A strong enhancement was found in the production of pairs of like-sign pions of similar momenta, with respect to the pairs of unlike-sign pions. The observed BE-enhancement was used to extract the values for the strength lambda of the effect and the radius r of the pion emitting source. The extracted value of lambda>1 is of relevant importance and clearly does not depend on the assumed parametrization of the correlation function. The influence of the normalization and fitting procedure, the detector resolution, the resonances production and decay and the neutral-pion multiplicity cuts, on the size of the pion source and the strength of the effect was investigated.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/16839
ISSN: 0375-9474
Link: <Go to ISI>://WOS:A1993LR28500006
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

Files in This Item:
There are no files associated with this item.



 Please use this identifier to cite or link to this item:
http://olympias.lib.uoi.gr/jspui/handle/123456789/16839
  This item is a favorite for 0 people.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.