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Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle : Belle Collaboration. / The BELLE collaboration ; Кузьмин, Александр Степанович.

In: European Physical Journal C, Vol. 78, No. 3, 252, 23.03.2018.

Research output: Contribution to journal › Article › peer-review

Harvard

The BELLE collaboration & Кузьмин, АС 2018, 'Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle: Belle Collaboration', European Physical Journal C, vol. 78, no. 3, 252. https://doi.org/10.1140/epjc/s10052-018-5720-5

APA

The BELLE collaboration, & Кузьмин, А. С. (2018). Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle: Belle Collaboration. European Physical Journal C, 78(3), [252]. https://doi.org/10.1140/epjc/s10052-018-5720-5

Vancouver

The BELLE collaboration, Кузьмин АС. Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle: Belle Collaboration. European Physical Journal C. 2018 Mar 23;78(3):252. doi: 10.1140/epjc/s10052-018-5720-5

Author

The BELLE collaboration ; Кузьмин, Александр Степанович. / Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle : Belle Collaboration. In: European Physical Journal C. 2018 ; Vol. 78, No. 3.

BibTeX

@article{3ae61c3007ac4d98a18f5eca6dd7300f,
title = "Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle: Belle Collaboration",
abstract = "We report the first observation of the Ξ c(2930) 0 charmed-strange baryon with a significance greater than 5σ. The Ξ c(2930) 0 is found in its decay to K-Λc+ in B-→K-Λc+Λ¯c- decays. The measured mass and width are [2928.9±3.0(stat.)-12.0+0.9(syst.)] MeV/c2 and [19.5±8.4(stat.)-7.9+5.9(syst.)] MeV, respectively, and the product branching fraction is B(B-→Ξc(2930)0Λ¯c-)B(Ξc(2930)0→K-Λc+)=[1.73±0.45(stat.)±0.21(syst.)]×10-4. We also measure B(B-→K-Λc+Λ¯c-)=[4.80±0.43(stat.)±0.60(syst.)]×10-4 with improved precision, and search for the charmonium-like state Y(4660) and its spin partner, Yη, in the Λc+Λ¯c- invariant mass spectrum. No clear signals of the Y(4660) nor its spin partner are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of (772 ± 11) × 10 6BB¯ pairs collected at the Υ (4 S) resonance by the Belle detector at the KEKB asymmetric energy electron–positron collider.",
author = "{The BELLE collaboration} and Li, {Y. B.} and Shen, {C. P.} and I. Adachi and Ahn, {J. K.} and H. Aihara and {Al Said}, S. and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and Y. Ban and V. Bansal and P. Behera and M. Berger and V. Bhardwaj and B. Bhuyan and J. Biswal and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and S. Cunliffe and N. Dash and {Di Carlo}, S. and Z. Dole{\v z}al and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and N. Gabyshev and A. Garmash and P. Krokovny and V. Shebalin and B. Shwartz and V. Vorobyev and V. Zhilich and V. Zhulanov and Кузьмин, {Александр Степанович}",
note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",
year = "2018",
month = mar,
day = "23",
doi = "10.1140/epjc/s10052-018-5720-5",
language = "English",
volume = "78",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer Nature",
number = "3",

}

RIS

TY - JOUR

T1 - Observation of Ξ c(2930) 0 and updated measurement of B-→K-Λc+Λ¯c- at Belle

T2 - Belle Collaboration

AU - The BELLE collaboration

AU - Li, Y. B.

AU - Shen, C. P.

AU - Adachi, I.

AU - Ahn, J. K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Bansal, V.

AU - Behera, P.

AU - Berger, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Dash, N.

AU - Di Carlo, S.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Krokovny, P.

AU - Shebalin, V.

AU - Shwartz, B.

AU - Vorobyev, V.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Кузьмин, Александр Степанович

N1 - Publisher Copyright: © 2018, The Author(s).

PY - 2018/3/23

Y1 - 2018/3/23

N2 - We report the first observation of the Ξ c(2930) 0 charmed-strange baryon with a significance greater than 5σ. The Ξ c(2930) 0 is found in its decay to K-Λc+ in B-→K-Λc+Λ¯c- decays. The measured mass and width are [2928.9±3.0(stat.)-12.0+0.9(syst.)] MeV/c2 and [19.5±8.4(stat.)-7.9+5.9(syst.)] MeV, respectively, and the product branching fraction is B(B-→Ξc(2930)0Λ¯c-)B(Ξc(2930)0→K-Λc+)=[1.73±0.45(stat.)±0.21(syst.)]×10-4. We also measure B(B-→K-Λc+Λ¯c-)=[4.80±0.43(stat.)±0.60(syst.)]×10-4 with improved precision, and search for the charmonium-like state Y(4660) and its spin partner, Yη, in the Λc+Λ¯c- invariant mass spectrum. No clear signals of the Y(4660) nor its spin partner are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of (772 ± 11) × 10 6BB¯ pairs collected at the Υ (4 S) resonance by the Belle detector at the KEKB asymmetric energy electron–positron collider.

AB - We report the first observation of the Ξ c(2930) 0 charmed-strange baryon with a significance greater than 5σ. The Ξ c(2930) 0 is found in its decay to K-Λc+ in B-→K-Λc+Λ¯c- decays. The measured mass and width are [2928.9±3.0(stat.)-12.0+0.9(syst.)] MeV/c2 and [19.5±8.4(stat.)-7.9+5.9(syst.)] MeV, respectively, and the product branching fraction is B(B-→Ξc(2930)0Λ¯c-)B(Ξc(2930)0→K-Λc+)=[1.73±0.45(stat.)±0.21(syst.)]×10-4. We also measure B(B-→K-Λc+Λ¯c-)=[4.80±0.43(stat.)±0.60(syst.)]×10-4 with improved precision, and search for the charmonium-like state Y(4660) and its spin partner, Yη, in the Λc+Λ¯c- invariant mass spectrum. No clear signals of the Y(4660) nor its spin partner are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of (772 ± 11) × 10 6BB¯ pairs collected at the Υ (4 S) resonance by the Belle detector at the KEKB asymmetric energy electron–positron collider.

UR - http://www.scopus.com/inward/record.url?scp=85044472530&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-018-5720-5

DO - 10.1140/epjc/s10052-018-5720-5

M3 - Article

AN - SCOPUS:85044472530

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 3

M1 - 252

ER -

ID: 12214348