Please use this identifier to cite or link to this item:
Title: Measurement of Collins asymmetries in inclusive production of charged pion pairs in e+e- annihilation at BABAR
Author: Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 9-Sep-2014
Publisher: American Physical Society
Abstract: We present measurements of Collins asymmetries in the inclusive process e + e − → π π X , where π stands for charged pions, at a center-of-mass energy of 10.6 GeV. We use a data sample of 468     fb − 1 collected by the BABAR experiment at the PEP-II B factory at SLAC, and consider pairs of charged pions produced in opposite hemispheres of hadronic events. We observe clear asymmetries in the distributions of the azimuthal angles in two distinct reference frames. We study the dependence of the asymmetry on several kinematic variables, finding that it increases with increasing pion momentum and momentum transverse to the analysis axis, and with increasing angle between the thrust and beam axis.
Note: Reproducció del document publicat a:
It is part of: Physical Review D, 2014, vol. 90, num. 5, p. 052003
Related resource:
ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
646450.pdf2.03 MBAdobe PDFView/Open

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