Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Production cross sections of hyperons and charmed baryons from e+e- annihilation near s =10.52 GeV. / Belle Collaboration.
в: Physical Review D, Том 97, № 7, 072005, 09.04.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Production cross sections of hyperons and charmed baryons from e+e- annihilation near s =10.52 GeV
AU - The BELLE collaboration
AU - Niiyama, M.
AU - Sumihama, M.
AU - Nakano, T.
AU - Adachi, I.
AU - Aihara, H.
AU - Al Said, S.
AU - Asner, D. M.
AU - Aulchenko, V.
AU - Aushev, T.
AU - Ayad, R.
AU - Babu, V.
AU - Badhrees, I.
AU - Bakich, A. M.
AU - Bansal, V.
AU - Barberio, E.
AU - Berger, M.
AU - Bhardwaj, V.
AU - Bhuyan, B.
AU - Biswal, J.
AU - Bobrov, A.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Červenkov, D.
AU - Chang, M. C.
AU - Chekelian, V.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Chistov, R.
AU - Cho, K.
AU - Choi, Y.
AU - Cinabro, D.
AU - Dash, N.
AU - Di Carlo, S.
AU - DoleŽal, Z.
AU - Drásal, Z.
AU - Dutta, D.
AU - Eidelman, S.
AU - Farhat, H.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Shebalin, V.
AU - Shwartz, B.
AU - Zhilich, V.
AU - Zhulanov, V.
N1 - Publisher Copyright: © 2018 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 SCOAP .
PY - 2018/4/9
Y1 - 2018/4/9
N2 - We measure the inclusive production cross sections of hyperons and charmed baryons from e+e- annihilation using a 800 fb-1 data sample taken near the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The feed-down contributions from heavy particles are subtracted using our data, and the direct production cross sections are presented for the first time. The production cross sections divided by the number of spin states for S=-1 hyperons follow an exponential function with a single slope parameter except for the Σ(1385)+ resonance. Suppression for Σ(1385)+ and Ξ(1530)0 hyperons is observed. Among the production cross sections of charmed baryons, a factor of 3 difference for Λc+ states over Σc states is observed. This observation suggests a diquark structure for these baryons.
AB - We measure the inclusive production cross sections of hyperons and charmed baryons from e+e- annihilation using a 800 fb-1 data sample taken near the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The feed-down contributions from heavy particles are subtracted using our data, and the direct production cross sections are presented for the first time. The production cross sections divided by the number of spin states for S=-1 hyperons follow an exponential function with a single slope parameter except for the Σ(1385)+ resonance. Suppression for Σ(1385)+ and Ξ(1530)0 hyperons is observed. Among the production cross sections of charmed baryons, a factor of 3 difference for Λc+ states over Σc states is observed. This observation suggests a diquark structure for these baryons.
KW - E+E-ANNIHILATION
KW - HEAVY QUARKS
KW - FRAGMENTATION
KW - MESONS
KW - STATES
UR - http://www.scopus.com/inward/record.url?scp=85046756937&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.97.072005
DO - 10.1103/PhysRevD.97.072005
M3 - Article
AN - SCOPUS:85046756937
VL - 97
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 7
M1 - 072005
ER -
ID: 13355048