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Measurement of branching fractions of Λ›c+ decays to Σ+K+K-, Σ+Φ† and Σ+K+π-(π€0)
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- Ablikim, M. (author)
- Inst High Energy Phys, Beijing 100049, Peoples R China
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- Adlarson, Patrik (author)
- Uppsala universitet,Kärnfysik
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- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
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- (creator_code:org_t)
- Springer, 2023
- 2023
- English.
- In: Journal of High Energy Physics (JHEP). - : Springer. - 1126-6708 .- 1029-8479. ; 2023
- Journal article (peer-reviewed)
Abstract
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- Based on 4.5 fb(-1 )data taken at seven center-of-mass energies ranging from 4.600 to 4.699 GeV with the BESIII detector at the BEPCII collider, we measure the branching fractions of Lambda(+)(c) ->Sigma(+) + hadrons relative to Lambda(+)(c) ->Sigma(+)pi(+)pi(-). Combining with the world average branching fraction of Lambda(+)(c) ->Sigma(+)pi(+)pi(-), their branching fractions are measured to be (0.377 +/- 0.042 +/- 0.020 +/- 0.021)% for Lambda(+)(c) ->Sigma+K+K-, (0.200 +/- 0.023 +/- 0.011 +/- 0.011)% for Lambda(+)(c) ->Sigma K-+(+)pi(-), (0.414 +/- 0.080 +/- 0.030 +/- 0.023)% for Lambda(+)(c) ->Sigma(+)phi and (0.197 +/- 0.036 +/- 0.009 +/- 0.011)% for Lambda(+)(c) ->Sigma+K+K-(non-phi). In all the above results, the first uncertainties are statistical, the second are systematic and the third are from external input of the branching fraction of Lambda(+)(c) ->Sigma(+)pi(+)pi(-). Since no signal for Lambda(+)(c) ->Sigma K-+(+)pi(-)pi(0) is observed, the upper limit of its branching fraction is determined to be 0.13% at the 90% confidence level.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Charm Physics
- e(+)-e(-) Experiments
- Electroweak Interaction
- Flavour Physics
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- ref (subject category)
- art (subject category)
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- Ablikim, M.
- Adlarson, Patrik
- Johansson, Tord
- Kupsc, Andrzej
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- Thorén, Viktor
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- Wolke, Magnus
- Zu, J.
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