Engineering topics
Albrecht, M.
Publications and source records attributed to Albrecht, M..
Measurement of the Cross Section for e + e − → Ξ − Ξ ¯ + and Observation of an Excited Ξ Baryon
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Observation of the Leptonic Decay D + → τ + ν τ
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First observation of the decay χ c J → Σ + p ¯ K S 0 + c . c . ( J = 0 , 1 , 2 )
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Measurement of branching fractions of ψ ( 3686 ) → ϕ η ′ , ϕ f 1 ( 1285 ) and ϕ η ( 1405 )
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Measurement of branching fractions for D meson decaying into ϕ meson and a pseudoscalar meson
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Improved measurements of the absolute branching fractions of the inclusive decays D + ( 0 ) → ϕ X
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Measurements of weak decay asymmetries of Λ c + → p K s 0 , Λ π + , Σ + π 0 , and Σ 0 π +
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Amplitude analysis of D + → K S 0 π + π + π -
The decay D + → K S 0 π + π + π - is studied with an amplitude analysis using a data set of 2.93 fb - 1 of e + e - collisions at the ψ ( 3770 ) peak accumulated by the BESIII detector. Intermediate states and nonresonant components, and their relative fractions and phases, have been determined. The significant amplitudes, which contribute to the model that best fits the data, are composed of five quasitwo-body decays K S 0 a 1 ( 1260 ) + , K ¯ 1 ( 1270 ) 0 π + K ¯ 1 ( 1400 ) 0 π + , K ¯ 1 ( 1650 ) 0 π + , and K ¯ ( 1460 ) 0 π + , a three-body decay K S 0 π + ρ 0 , as well as a nonresonant component K S 0 π + π + π - . The dominant amplitude is K S 0 a 1 ( 1260 ) + , with a fit fraction of ( 40.3 ± 2.1 ± 2.9 ) % , where the first and second uncertainties are statistical and systematic, respectively.
Observation of ψ ( 3686 ) → Ξ ( 1530 ) − Ξ ¯ ( 1530 ) + and Ξ ( 1530 ) − Ξ ¯ +
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Complete Measurement of the Λ Electromagnetic Form Factors
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Study of the decays ψ ( 3686 ) → γ χ c J → γ p ¯ K * + Λ + c . c . and ψ ( 3686 ) → p ¯ K * + Λ + c . c .
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Amplitude Analysis of D s + → π + π 0 η and First Observation of the W -Annihilation Dominant Decays D s + → a 0 ( 980 ) + π 0 and D s + → a 0 ( 980 ) 0 π +
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Cross section measurements of e + e − → K + K − K + K − and ϕ K + K − at center-of-mass energies from 2.10 to 3.08 GeV
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Partial-wave analysis of J / ψ → K + K − π 0
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Observation of e + e − → π + π − ψ ( 3770 ) and D 1 ( 2420 ) 0 D ¯ 0 + c . c .
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Measurements of the branching fractions of η c → K + K − π 0 , K S 0 K ± π ∓ , 2 ( π + π − π 0 ) , and p p ¯
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