ANGULAR-DEPENDENCE OF BOSE-EINSTEIN CORRELATIONS IN INTERACTIONS OF PI(-GEV() AND K+ MESONS WITH PROTONS AND NUCLEI AT 250)C/

Authors
AGABABYAN NM AJINENKO IV ATAYAN MR BELOUS K CHARLET M CHLIAPNIKOV PV DEWOLF EA DZIUNIKOWSKA K ENDLER AMF GARUTCHAVA ZS GULKANYAN HR HAKOBYAN RS KARAMYAN JK KISIELEWSKA D KITTEL W MEHRABYAN SS METREVELI ZV OLIVEIRA LCS OLKIEWICZ K RIZATDINOVA FK SHABALINA EK SMIRNOVA LN TABIDZE MD TIKHONOVA LA TOMARADZE AG VERBEURE F ZOTKIN SA
Citation
Nm. Agababyan et al., ANGULAR-DEPENDENCE OF BOSE-EINSTEIN CORRELATIONS IN INTERACTIONS OF PI(-GEV() AND K+ MESONS WITH PROTONS AND NUCLEI AT 250)C/, Zeitschrift fur Physik. C, Particles and fields, 66(3), 1995, pp. 409-415
Citations number
29
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
66
Issue
3
Year of publication
1995
Pages
409 - 415
Database
ISI
SICI code
0170-9739(1995)66:3<409:AOBCII>2.0.ZU;2-6
Abstract
The angular dependence of Bose-Einstein correlations is studied in int eractions of pi(+) and K+ mesons with protons and nuclei at 250 CeV/c. The pion source is found to be elongated along the interaction axis i n the c.m.s., with the ratio a between transverse and longitudinal dim ension equal to 0.55 +/- 0.06 for the case of proton, 0.53 +/- 0.13 fo r the case of Al and 0.33 +/- 0.21 for the case of Au target. For meso n-proton interactions, indication for an increase of the elongation is found with increasing event multiplicity, pair momentum and particle transverse momentum.