Observation of New Baryons in the Ξb- π+π- and Ξb0π+π- Systems - 成果

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Observation of New Baryons in the Ξ_b^- π⁺π^- and Ξ_b⁰π⁺π^- Systems

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...

通讯作者：

Aaij, R

作者机构：

[Jans, E.; Ketel, T.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Butter, J. S.; Koppenburg, P.; Klaver, S.; Galati, M. D.; Heijhoff, K.; Akiba, K.; Aaij, R.; Sole, S. Ferreres; Kostiuk, I.; Biolchini, A.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.

[Da Graca, U. De Freitas Carneiro; Gomes, A.; Fantini, L.; Miranda, J. M. De; dos Reis, A. C.; Falcao, L. N.; Bediaga, I. B.; Leite, J. Baptista de Souza; Torres, M. Cruz] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.

[Hicheur, A.; Goicochea, J. M. Otalora; Rodrigues, F. Ferreira; De Paula, L.; Gandelman, M.; Amato, S.] Univ Fed Rio De Janeiro UFRJ, Rio De Janeiro, Brazil.

[Hu, X.; Gu, C.; Gong, G.; Kang, Y.; Zhu, X.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.

[Chen, S.; Jiang, X.; Batsukh, B.; Zou, Q.] Inst High Energy Phys IHEP, Beijing, Peoples R China.

通讯机构：

[Aaij, R ] N

Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.

语种：

英文

期刊：

PHYSICAL REVIEW LETTERS

ISSN：

0031-9007

年：

2023

卷：

131

期：

页码：

171901

DOI：

10.1103/PhysRevLett.131.171901

基金类别：

CERN (Brazil); CAPES (Brazil); CNPq (Brazil); FAPERJ (Brazil); FINEP (Brazil); MOST (China); NSFC (China); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW (Poland); NCN (Poland); MCID/IFA (Romania); MICINN (Spain); SNSF (Switzerland); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP (USA); NSF (USA); ARC (Australia); ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET (European Union); Marie Sklodowska-Curie Actions (European Union); NextGenerationEU (European Union); A*MIDEX (France); ANR (France); IPhU (France); Labex P2IO (France); Region Auvergne-Rhpne-Alpes (France); Key Research Program of Frontier Sciences of CAS; CAS PIFI; CAS CCEPP; Fundamental Research Funds for the Central Universities; Universities, and Sci. & Tech. Program of Guangzhou (China); GVA (Spain); XuntaGal (Spain); GENCAT (Spain); Inditex (Spain); InTalent (Spain); Prog. Atraccion Talento (Spain); CM (Spain); SRC (Sweden); Leverhulme Trust (United Kingdom); Royal Society (United Kingdom); UKRI (United Kingdom)

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院系归属：

物理科学与技术学院

摘要：

The first observation and study of two new baryonic structures in the final state Ξ_{b}^{0}π^{+}π^{-} and the confirmation of the Ξ_{b}(6100)^{-} state in the Ξ_{b}^{-}π^{+}π^{-} decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb^{-1}. In addition, the properties of the known Ξ_{b}^{*0}, Ξ_{b}^{'-} and Ξ_{b}^{*-} resonances are measured with improved precision. The new decay mode of the Ξ_{b}^{0} baryon to the Ξ_{c}^{+} π^{-} π^{+} π^{-} final state is obs...

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