Study of (Formula presented.) decay in perturbative QCD approach

Choong Sun Kim, Run Hui Li, Ying Li

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Within the perturbative QCD approach and ignoring the contributions of long distance and subleading penguin loops, we investigate (Formula presented.) decay in the large recoiling kinematic region in the Standard Model. At the tree level, (Formula presented.) decays to D0 by exchanging a W boson accompanied by a virtual photon emission from the valence quarks of (Formula presented.) and D0 meson, then the virtual photon decays to the lepton pair. Numerically, we find that the branching ratio decreases rapidly as the q2 increases, and the branching ratio of (Formula presented.) in the region q2∑ [1, 5]GeV2. The order of the branching ratio shows a possibility to study this interesting channel in the current B factories and the Large Hadron Collider. The precise experimental data will help us to test the factorization approach and the QCD theory, in general.

Original languageEnglish
Article number152
Pages (from-to)1-8
Number of pages8
JournalJournal of High Energy Physics
Volume2011
Issue number10
DOIs
Publication statusPublished - 2011 Oct 31

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quantum chromodynamics
decay
recoilings
exchanging
photons
industrial plants
factorization
leptons
kinematics
bosons
mesons
quarks
valence

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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abstract = "Within the perturbative QCD approach and ignoring the contributions of long distance and subleading penguin loops, we investigate (Formula presented.) decay in the large recoiling kinematic region in the Standard Model. At the tree level, (Formula presented.) decays to D0 by exchanging a W boson accompanied by a virtual photon emission from the valence quarks of (Formula presented.) and D0 meson, then the virtual photon decays to the lepton pair. Numerically, we find that the branching ratio decreases rapidly as the q2 increases, and the branching ratio of (Formula presented.) in the region q2∑ [1, 5]GeV2. The order of the branching ratio shows a possibility to study this interesting channel in the current B factories and the Large Hadron Collider. The precise experimental data will help us to test the factorization approach and the QCD theory, in general.",
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Study of (Formula presented.) decay in perturbative QCD approach. / Kim, Choong Sun; Li, Run Hui; Li, Ying.

In: Journal of High Energy Physics, Vol. 2011, No. 10, 152, 31.10.2011, p. 1-8.

Research output: Contribution to journalArticle

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