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Observation of the ...
Observation of the Semileptonic D+ Decay into the (K)over-bar(1)(1270)(0) Axial-Vector Meson
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- Ablikim, M. (author)
- Inst High Energy Phys, Beijing, Peoples R China
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- Adlarson, Patrik (author)
- Uppsala universitet,Kärnfysik
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- Biernat, Jacek (author)
- Uppsala universitet,Kärnfysik
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- Ikegami Andersson, Walter (author)
- Uppsala universitet,Kärnfysik
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- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
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- Kupsc, Andrzej (author)
- Uppsala universitet,Kärnfysik
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- Li, Cui, 1984- (author)
- Uppsala universitet,Kärnfysik
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- Papenbrock, Michael (author)
- Uppsala universitet,Kärnfysik
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- Pettersson, Joachim (author)
- Uppsala universitet,Kärnfysik
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- Schönning, Karin, 1978- (author)
- Uppsala universitet,Kärnfysik
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- Thorén, Viktor (author)
- Uppsala universitet,Kärnfysik
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- Wolke, Magnus (author)
- Uppsala universitet,Kärnfysik
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- Zou, J. H. (author)
- Inst High Energy Phys, Beijing, Peoples R China
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(creator_code:org_t)
- 2019
- 2019
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 123:23
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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Abstract
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- By analyzing a 2.93 fb(-1) data sample of e(+)e(-) collisions, recorded at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we report the first observation of the semileptonic D+ transition into the axial-vector meson D+ -> (K) over bar (1) (1270)(0)e(+)nu(e) with a statistical significance greater than 10 sigma. Its decay branching fraction is determined to be B[D+ -> (K) over bar (1) (1270)(0)e(+)nu(e)] = (2.30 +/- 0.26(-0.21)(+0.18) +/- 0.25) x 10(-3), where the first and second uncertainties are statistical and systematic, respectively, and the third originates from the input branching fraction of (K) over bar (1)(1270)(0) -> K-pi(+)pi(0).
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ablikim, M.
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Adlarson, Patrik
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Biernat, Jacek
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Ikegami Andersso ...
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Johansson, Tord
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Kupsc, Andrzej
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show more...
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Li, Cui, 1984-
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Papenbrock, Mich ...
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Pettersson, Joac ...
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Schönning, Karin ...
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Thorén, Viktor
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Wolke, Magnus
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Zou, J. H.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
- Articles in the publication
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Physical Review ...
- By the university
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Uppsala University