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Title: Angular analysis of the e + e - D ( * ) ± D * process near the open charm threshold using initial-state radiation

Here, we report a new measurement of the exclusive e + e - D ( * ) ± D * cross sections as a function of the center-of-mass energy from the D ( * ) ± D * threshold through $$ \sqrt{s}=6.0 $$ GeV, using the initial-state radiation technique. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 951 fb -1. The accuracy of the cross section measurement is increased by a factor of 2 over the first Belle study. We perform the first angular analysis of the e + e - D ( * ) ± D * process and decompose this exclusive cross section into three components corresponding to the D * helicities.
Authors:
 [1]
  1. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow (Russia); Moscow Physical Engineering Institute, Moscow (Russia). et al.
Publication Date:
Report Number(s):
PNNL-SA-131585
Journal ID: ISSN 2470-0010; PRVDAQ; KA2201020; TRN: US1801514
Grant/Contract Number:
AC05-76RL01830
Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
Belle Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1416415
Alternate Identifier(s):
OSTI ID: 1421347