Publication: Measurements of absolute hadronic branching fractions of the lambda(+)(c) baryon
Date
Authors
Tapan, İlhan
Authors
Ablikim, M.
Achasov, M. N.
Ai, X. C.
Albayrak, Onur
Albrecht, M.
Ambrose, D. J.
Amoroso, A.
An, F. F.
An, Q.
Bai, J. Z.
Advisor
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Amer Physical
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Abstract
We report the first measurement of absolute hadronic branching fractions of Lambda(+)(c) baryon at the Lambda(+)(c)(Lambda) over bar (-)(c) production threshold, in the 30 years since the Lambda(+)(c) discovery. In total, 12 Cabibbo-favored Lambda(+)(c) hadronic decay modes are analyzed with a double-tag technique, based on a sample of 567 pb(-1) of e(+)e(-) collisions at root s = 4.599 GeV recorded with the BESIII detector. A global least-squares fitter is utilized to improve the measured precision. Among the measurements for twelve Lambda(+)(c) decay modes, the branching fraction for Lambda(+)(c) -> pK(-)pi(+) is determined to be (5.84 +/- 0.27 +/- 0.23)%, where the first uncertainty is statistical and the second is systematic. In addition, the measurements of the branching fractions of the other 11 Cabibbo-favored hadronic decay modes are significantly improved.
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Keywords
Physics, Decay, Germanium compounds, Hadrons, Branching fractions, Decay mode, Global least squares, Hadronic branching fractions, Hadronic decays, Measurements of, Uncertainty analysis
Citation
Ablikim, M. vd. (2016). "Measurements of absolute hadronic branching fractions of the lambda(+)(c) baryon". Physical Review Letters, 116(5).