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Astronomische Nachrichten, nos 2964-2970
No full textR. R. Astronomische Nachrichten, nos 2964-2970. In: Bulletin astronomique, tome 7, 1890. pp. 216-224
First determination of the spin and parity of the charmed-strange baryon Ξc (2970)+
Full text linkWe report results from a study of the spin and parity of Ξc(2970)+ using a 980 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e- collider. The decay angle distributions in the chain Ξc(2970)+→Ξc(2645)0π+→Ξc+π-π+ are analyzed to determine the spin of this charmed-strange baryon. The angular distributions strongly favor the Ξc(2970)+ spin J=1/2 over 3/2 or 5/2, under an assumption that the lowest partial wave dominates in the decay. We also measure the ratio of Ξc(2970)+ decay branching fractions R=B[Ξc(2970)+→Ξc(2645)0π+]/B[Ξc(2970)+→Ξc′0π+]=1.67±0.29(stat)-0.09+0.15(syst)±0.25(IS), where the last uncertainty is due to possible isospin-symmetry-breaking effects. This R value favors the spin-parity JP=1/2+ with the spin of the light-quark degrees of freedom sl=0. This is the first determination of the spin and parity of a charmed-strange baryon. © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3
Abschlussbericht - Bioenergie Regionen Stärken (BEST) ‐ Teilprojekt Schwachholzpotenzial Wald (IO-H4)
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Abschlussbericht - Bioenergie Regionen Stärken (BEST) ‐ Teilprojekt Schwachholzpotenzial Wald (IO-H4)
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