Standard

Observation of χcJJ=012→pp¯ηη. / The BESIII Collaboration ; Ачасов, Михаил Николаевич; Мучной, Николай Юрьевич и др.

в: Journal of High Energy Physics, Том 2025, № 10, 90, 10.10.2025.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

The BESIII Collaboration, Ачасов, МН, Мучной, НЮ & Николаев, ИБ 2025, 'Observation of χcJJ=012→pp¯ηη', Journal of High Energy Physics, Том. 2025, № 10, 90. https://doi.org/10.1007/JHEP10(2025)090

APA

The BESIII Collaboration, Ачасов, М. Н., Мучной, Н. Ю., & Николаев, И. Б. (2025). Observation of χcJJ=012→pp¯ηη. Journal of High Energy Physics, 2025(10), [90]. https://doi.org/10.1007/JHEP10(2025)090

Vancouver

The BESIII Collaboration, Ачасов МН, Мучной НЮ, Николаев ИБ. Observation of χcJJ=012→pp¯ηη. Journal of High Energy Physics. 2025 окт. 10;2025(10):90. doi: 10.1007/JHEP10(2025)090

Author

The BESIII Collaboration ; Ачасов, Михаил Николаевич ; Мучной, Николай Юрьевич и др. / Observation of χcJJ=012→pp¯ηη. в: Journal of High Energy Physics. 2025 ; Том 2025, № 10.

BibTeX

@article{8a41fff3535344c69a8ce93dc659ab86,
title = "Observation of χcJJ=012→pp¯ηη",
abstract = "Using (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) candidates collected by the BESIII detector operating at the BEPCII storage ring, the decays χcJJ=012→pp¯ηη are observed for the first time through the radiative transition ψ (3686) → γχ cJ . The statistical significances for χ cJ signals are all larger than 5 σ. The branching fractions of χc0,1,2opp¯ηη χ c 0 , 1 , 2 → p p ¯ ηη are determined to be (5 . 75 ± 0 . 59 ± 0 . 42) × 10 − 5 , (1 . 40 ± 0 . 33 ± 0 . 17) × 10 − 5 , and (2 . 64 ± 0 . 40 ± 0 . 27) × 10 − 5 , respectively, where the first uncertainties are statistical and the second systematic. No evident resonant structures are found in the pp¯ p p ¯ and pη/p¯η pη / p ¯ η systems.",
keywords = "e +-e − Experiments, Quarkonium, Branching fraction",
author = "{BESIII Collaboration} and Ачасов, {Михаил Николаевич} and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",
note = "Observation of χcJJ=012→pp¯ηη / M. Ablikim, M. N. Achasov, P. Adlarson [et al.] // Journal of High Energy Physics. – 2025. – Vol. 2025. - No. 10. – P. 90. – DOI 10.1007/jhep10(2025)090. – EDN NSZRCO. The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key R&D Program of China under Contracts Nos. 2020YFA0406300, 2020YFA0406400, 2023YFA1606000; National Natural Science Foundation of China (NSFC) under Contracts Nos. 12375071, 11635010, 11735014, 11935015, 11935016, 11935018, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12361141819; Natural Science Foundation of Henan under Contract No. 242300421163; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; CAS under Contract No. YSBR-101; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; Agencia Nacional de Investigaci{\'o}n y Desarrollo de Chile (ANID), Chile under Contract No. ANID PIA/APOYO AFB230003; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts Nos. 2021.0174, 2021.0299; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand under Contracts Nos. B16F640076, B50G670107; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; Swedish Research Council under Contract No. 2019.04595; The Swedish Foundation for International Cooperation in Research and Higher Education under Contract No. CH2018-7756; U. S. Department of Energy under Contract No. DE-FG02-05ER41374.",
year = "2025",
month = oct,
day = "10",
doi = "10.1007/JHEP10(2025)090",
language = "English",
volume = "2025",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "10",

}

RIS

TY - JOUR

T1 - Observation of χcJJ=012→pp¯ηη

AU - BESIII Collaboration

AU - Ачасов, Михаил Николаевич

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - Observation of χcJJ=012→pp¯ηη / M. Ablikim, M. N. Achasov, P. Adlarson [et al.] // Journal of High Energy Physics. – 2025. – Vol. 2025. - No. 10. – P. 90. – DOI 10.1007/jhep10(2025)090. – EDN NSZRCO. The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key R&D Program of China under Contracts Nos. 2020YFA0406300, 2020YFA0406400, 2023YFA1606000; National Natural Science Foundation of China (NSFC) under Contracts Nos. 12375071, 11635010, 11735014, 11935015, 11935016, 11935018, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12361141819; Natural Science Foundation of Henan under Contract No. 242300421163; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; CAS under Contract No. YSBR-101; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; Agencia Nacional de Investigación y Desarrollo de Chile (ANID), Chile under Contract No. ANID PIA/APOYO AFB230003; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts Nos. 2021.0174, 2021.0299; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand under Contracts Nos. B16F640076, B50G670107; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; Swedish Research Council under Contract No. 2019.04595; The Swedish Foundation for International Cooperation in Research and Higher Education under Contract No. CH2018-7756; U. S. Department of Energy under Contract No. DE-FG02-05ER41374.

PY - 2025/10/10

Y1 - 2025/10/10

N2 - Using (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) candidates collected by the BESIII detector operating at the BEPCII storage ring, the decays χcJJ=012→pp¯ηη are observed for the first time through the radiative transition ψ (3686) → γχ cJ . The statistical significances for χ cJ signals are all larger than 5 σ. The branching fractions of χc0,1,2opp¯ηη χ c 0 , 1 , 2 → p p ¯ ηη are determined to be (5 . 75 ± 0 . 59 ± 0 . 42) × 10 − 5 , (1 . 40 ± 0 . 33 ± 0 . 17) × 10 − 5 , and (2 . 64 ± 0 . 40 ± 0 . 27) × 10 − 5 , respectively, where the first uncertainties are statistical and the second systematic. No evident resonant structures are found in the pp¯ p p ¯ and pη/p¯η pη / p ¯ η systems.

AB - Using (2712 . 4 ± 14 . 3) × 10 6 ψ (3686) candidates collected by the BESIII detector operating at the BEPCII storage ring, the decays χcJJ=012→pp¯ηη are observed for the first time through the radiative transition ψ (3686) → γχ cJ . The statistical significances for χ cJ signals are all larger than 5 σ. The branching fractions of χc0,1,2opp¯ηη χ c 0 , 1 , 2 → p p ¯ ηη are determined to be (5 . 75 ± 0 . 59 ± 0 . 42) × 10 − 5 , (1 . 40 ± 0 . 33 ± 0 . 17) × 10 − 5 , and (2 . 64 ± 0 . 40 ± 0 . 27) × 10 − 5 , respectively, where the first uncertainties are statistical and the second systematic. No evident resonant structures are found in the pp¯ p p ¯ and pη/p¯η pη / p ¯ η systems.

KW - e +-e − Experiments

KW - Quarkonium

KW - Branching fraction

UR - https://www.scopus.com/pages/publications/105021053415

UR - https://elibrary.ru/item.asp?id=86748677

U2 - 10.1007/JHEP10(2025)090

DO - 10.1007/JHEP10(2025)090

M3 - Article

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 10

M1 - 90

ER -

ID: 75603429