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Preprint/Report PUBDB-2017-10929
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Angular analysis of the $e^+ e^- \to D^{(*) \pm} D^{* \mp}$ process near the open charm threshold using initial-state radiation

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2017

[10.3204/PUBDB-2017-10929]  GO

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Report No.: BELLE-PREPRINT-2017-15; KEK-PREPRINT-2017-16; arXiv:1707.09167

Abstract: We report a new measurement of the exclusive $e^+ e^- \to D^{(*) \pm} D^{*\mp}$ cross sections as a function of the center-of-mass energy from the $D^{(*) \pm} D^{* \mp}$ threshold through $\sqrt{s}=6.0$ GeV with initial-state radiation. 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 two over the first Belle study. We perform the first angular analysis of the $e^+ e^- \to D^{* \pm} D^{* \mp}$ process and decompose this exclusive cross section into three components corresponding to the $D^*$ helicities.

Keyword(s): electron positron: annihilation ; electron positron: colliding beams ; radiation: initial-state interaction ; threshold: charm ; angular distribution ; initial state ; channel cross section: measured ; energy dependence ; BELLE ; KEK-B ; D*(2010): helicity ; experimental results ; electron positron --> D+ D*(2010)- ; electron positron --> D- D*(2010)+ ; electron positron --> D*(2010)+ D*(2010)-


Note: 23 pages, 21 figures, 3 tables. Submitted to PRD Jul 28, 2017
Contributing Institute(s):
  1. beauftragt von FH (Belle)
Research Program(s):
  1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)
Experiment(s):
  1. KEK: BELLE I/II

Appears in the scientific report 2017
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OpenAccess ; Published
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http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article  ;  ;  ; et al
Angular analysis of the $\mathrm{e^+ e^- \to D^{(*) \pm} D^{* \mp}}$ process near the open charm threshold using initial-state radiation
Physical review / D 97(1), 012002 () [10.1103/PhysRevD.97.012002]  GO OpenAccess  Download fulltext Files  Download fulltextFulltext Download fulltextFulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

 Record created 2017-09-20, last modified 2021-11-10
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