Measurements of relative branching ratios of Λ+ decays into states containing Σ

Link, J. M.; Reyes, M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Göbel, C.; Magnin, J.; Massafferri, A.; Miranda, J. M. De; Pepe, I. M.; Reis, A. C. dos; Carrillo, S.; Casimiro, E.; Cuautle, E.; Sánchez-Hernández, A.; Uribe, C.; Vázquez, F.; Agostino, L.; Cinquini, L.; Cumalat, J. P.; O’Reilly, B.; Vargas, J. E. Ramirez; Segoni, I.; Butler, J. N.; Cheung, H. W. K.; Chiodini, G.; Gaines, I.; Garbincius, P. H.; Garren, L.; Gottschalk, E.; Kasper, P.; Kreymer, A.; Kutschke, R.; Benussi, L.; Bianco, S.; Fabbri, F.; Zallo, A.; Cawlfield, C.; Kim, D. Y.; Park, K. S.; Rahimi, A. M.; Wiss, J.; Gardner, R.; Kryemadhi, A.; Chang, Kang‐Tsung; Chung, Y. S.; Kang, J. S.; Ko, B. R.; Kwak, J. W.; Lee, K. B.; Cho, K.; Park, H.; Alimonti, G.; Barberis, S.; Cerutti, Agustín Cobos; Boschini, M.; D’Angelo, P.; DiCorato, M.; Dini, P.; Edera, L.; Erba, S.; Giammarchi, M.; Inzani, P.; Leveraro, F.; Malvezzi, S.; Menasce, D.; Mezzadri, M.; Moroni, L.; Pedrini, D.; Pontoglio, C.; Prelz, F.; Rovere, M.; Sala, S.; Davenport, T. F.; Arena, Vincenzo; Boca, G.; Bonomi, G.; Gianini, G.; Liguori, G.; Merlo, M. M.; Pantea, D.; Ratti, S. P.; Riccardi, C.; Vitulo, P.; Hernandez, H.; López, A.; Méndez, H.; Cunqueiro, L.; Montiel, E.; Olaya, D.; Paris, A.; Quinones, J.; Rivera, C.; Xiong, W.; Zhang, Y.; Wilson, J. R.; Handler, T.; Mitchell, R. E.; Engh, D.; Hosack, M.; Johns, W.; Nehring, M.; Sheldon, P.; Stenson, K.; Vaandering, Eric Wayne; Webster, M.; Sheaff, M.

doi:10.1016/s0370-2693(02)02103-2

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…The uncertainty is dominated by the ratios of branching fractions of + c and + c decays in Eqs. (24) and (25). The central value of B( + c → pK − π + ) at the order of percent, is larger than the typical order of 10 −3 of the ordinary singly Cabibbo-suppressed processes, such as B( + c → + K * 0 ) = (3.6 ± 1.0) × 10 −3 .…”

Section: Branching Fraction Ofmentioning

confidence: 89%

“…The large uncertainty of B( + c → pK − π + ) in Eq. (26), inducing the major uncertainty of f b / f b , is dominated by two ratios of branching fractions: B( + c → pK * 0 )/B( + c → pK − π + ) = 0.54 ± 0.10 by FOCUS in 2001 [22] and B( + c → + K * 0 )/B( + c → + π + π − ) = 0.078 ± 0.022 measured by FOCUS in 2002 [25]. For the former, a more precise measurement can be performed by LHCb with partial wave analysis.…”

Section: Branching Fraction Ofmentioning

confidence: 95%

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Fragmentation-fraction ratio $$f_{\Xi _b}/f_{\Lambda _b}$$ f Ξ b / f Λ

Jiang

2018

Eur. Phys. J. C

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We study the ratio of fragmentation fractions, f b / f b , from the measurement of 0 b → + c π − and 0 b → + c π − with + c / + c → pK − π +. With the branching fraction B(+ c → pK − π +) = (2.2 ± 0.8)% obtained under the U-spin symmetry, the fragmentation ratio is determined as f b / f b = 0.054 ± 0.020. To reduce the above uncertainties, we suggest to measure the branching fractions of + c → pK * 0 and + c → + K * 0 at BESIII, Belle II and LHCb.

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Section: Branching Fraction Ofmentioning

confidence: 89%

Section: Branching Fraction Ofmentioning

confidence: 95%

Fragmentation-fraction ratio $$f_{\Xi _b}/f_{\Lambda _b}$$ f Ξ b / f Λ

Jiang

2018

Eur. Phys. J. C

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“…The large uncertainty of B(Ξ + c → pK − π + ) in Eq. ( 26), inducing the major uncertainty of f Ξ b /f Λ b , is dominated by two ratios of branching fractions: B(Ξ + c → pK * 0 )/B(Ξ + c → pK − π + ) = 0.54 ± 0.10 by FOCUS in 2001 [22] and B(Λ + c → Σ + K * 0 )/B(Λ + c → Σ + π + π − ) = 0.078 ± 0.022 measured by FOCUS in 2002 [25]. For the former, a more precise measurement can be performed by LHCb with partial wave analysis.…”

Section: The Central Value Of B(ξ +mentioning

confidence: 92%

Fragmentation-fraction ratio $f_{Ξ_b}/f_{Λ_b}$ in $b$- and $c$-baryon decays

Jiang,

2018

Preprint

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“…To measure Ξ ++ cc → Ξ + c π + , Ξ + c can be reconstructed using the mode Ξ + c → pK − π + at hadron colliders with all the charged particles in the final state. The absolute branching fraction of this process has never been directly measured, but the relative branching ratio was measured as [34], the branching fraction is…”

Section: The Absolute Branching Fraction Of ξmentioning

confidence: 99%

Discovery potentials of doubly charmed baryons

et al. 2018

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The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, Ξ ++ cc and Ξ + cc , which should be helpful for experimental searches for these particles. The long-distance contributions are first studied in the doubly heavy baryon decays, and found to be significantly enhanced. Comparing all the processes, Ξ ++ cc → Λ + c K − π + π + and Ξ + c π + are the most favorable decay modes for experiments to search for doubly heavy baryons.

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Measurements of relative branching ratios of Λ+ decays into states containing Σ

Cited by 7 publications

References 9 publications

Fragmentation-fraction ratio $$f_{\Xi _b}/f_{\Lambda _b}$$ f Ξ b / f Λ

Fragmentation-fraction ratio $$f_{\Xi _b}/f_{\Lambda _b}$$ f Ξ b / f Λ

Fragmentation-fraction ratio $f_{Ξ_b}/f_{Λ_b}$ in $b$- and $c$-baryon decays

Discovery potentials of doubly charmed baryons

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