First Observation of Inclusive $B$ Decays to the Charmed Strange Baryons $\Xi_{c}^{0}$ and $\Xi_{c}^{+}$

B. Barish et al; CLEO Collaboration

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First Observation of Inclusive $B$ Decays to the Charmed Strange Baryons $\Xi_{c}^{0}$ and $\Xi_{c}^{+}$

CLEO Collaboration, B. Barish et al

High Energy Physics - Experiment · Submitted 8 May 1997

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+.

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arXiv IDhep-ex/9705005 (version 1)

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CitationB. Barish et al, CLEO Collaboration. "First Observation of Inclusive $B$ Decays to the Charmed Strange Baryons $\Xi_{c}^{0}$ and $\Xi_{c}^{+}$." arXiv:hep-ex/9705005 (1997). https://pith.science/paper/OOTBMKA2

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What the abstract itself states, as probabilities: claims first 0.98 · states limitation 0.11 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.08 · mentions code or data availability 0.02.

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arXiv listing abstract v1. Results and the main claim are underlined; show every role.

Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+. We find 79 +/- 27 Xi_c0 and 125 +/- 28 Xi_c+ candidates from B decays, leading to product branching fractions of BR(Bbar -> Xi_c0 X)BR(Xi_c0 -> Xi- pi+) = (0.144 +/- 0.048 +/- 0.021) x 10^-3 and BR(Bbar -> Xi_c+ X)BR(Xi_c+ -> Xi- pi+ pi+) = (0.453 +/- 0.096 +0.085-0.065) x 10^-3.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+.	contribution 0.80	0.94	0.88	asserted 1.00
s1	We find 79 +/- 27 Xi_c0 and 125 +/- 28 Xi_c+ candidates from B decays, leading to product branching fractions of BR(Bbar -> Xi_c0 X)BR(Xi_c0 -> Xi- pi+) = (0.144 +/- 0.048 +/- 0.021) x 10^-3 and BR(Bbar -> Xi_c+ X)BR(Xi_c+ -> Xi- pi+ pi+) = (0.453 +/- 0.096 +0.085-0.065) x 10^-3.	result 1.00	0.98	0.44	asserted 1.00

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Original abstract

Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+. We find 79 +/- 27 Xi_c0 and 125 +/- 28 Xi_c+ candidates from B decays, leading to product branching fractions of BR(Bbar -> Xi_c0 X)BR(Xi_c0 -> Xi- pi+) = (0.144 +/- 0.048 +/- 0.021) x 10^-3 and BR(Bbar -> Xi_c+ X)BR(Xi_c+ -> Xi- pi+ pi+) = (0.453 +/- 0.096 +0.085-0.065) x 10^-3.

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This comes from the fact that in inclusive $Ξ_c^+$ reconstruction the ratio of signal to combinatorial background is about $1/2$, as seen in Fig. 2 of Ref. [ref] , while a ratio of about $1$ is seen for inclusive $Λ_c^+$ reconstruction in Fig. 2 of Ref. [ref] .

Probing $R$-parity violation in $B$-meson decays to a baryon and a light neutralino · Sensitivity estimate for () and () · 0.94

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