Observation and branching fraction measurements of 𝜒𝑐⁢𝐽 →𝑝⁢¯𝑝⁢𝐾0𝑆⁢𝐾0𝑆

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Observation and branching fraction measurements of 𝜒𝑐⁢𝐽 →𝑝⁢¯𝑝⁢𝐾0𝑆⁢𝐾0𝑆 / BESIII Collaboration ; Ачасов, Михаил Николаевич ; Мучной, Николай Юрьевич et al.

In: Physical Review D, Vol. 113, No. 11, 112003, 05.06.2026.

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

BibTeX

@article{1f4b836e1f8045e9a24968ea360e2420,

title = "Observation and branching fraction measurements of 휒푐⁢퐽 →푝⁢¯푝⁢퐾0푆⁢퐾0푆",

abstract = "Based on (2.712 ±0.014) ×109 휓⁡(3686) events collected with the BESIII detector, the decays 휒푐⁢퐽 →푝⁢¯푝⁢퐾0푆⁢퐾0푆 (퐽 =0, 1, 2) are observed for the first time with statistical significances exceeding 5⁢휎. The measured branching fractions are ℬ⁡(휒푐⁢0 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(7.25 ±0.28 ±0.35) ×10−5, ℬ⁡(휒푐⁢1 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(1.33 ±0.12 ±0.07) ×10−5, and ℬ⁡(휒푐⁢2 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(2.51 ±0.16 ±0.12) ×10−5, where the first uncertainties are statistical and the second systematic. In addition, no significant structures are observed in the 푝⁢¯푝, 푝⁢퐾0푆, and ¯푝⁢퐾0푆 mass spectra.",

keywords = "Particle decays, Branching fraction",

author = "{BESIII Collaboration} and Ачасов, {Михаил Николаевич} and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",

note = "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 No. 2023YFA1606000, No. 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts No. 12575092, No. 11635010, No. 11935015, No. 11935016, No. 11935018, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, No. 12221005, No. 12225509, No. 12235017, No. 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Strategic Priority Research Program of Chinese Academy of Sciences under Contract No. XDA0480600; 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; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts No. 2021.0174, No. 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; Polish National Science Centre under Contract No. 2024/53/B/ST2/00975; STFC (United Kingdom); Swedish Research Council under Contract No. 2019.04595; U. S. Department of Energy under Contract No. DE-FG02-05ER41374.",

year = "2026",

month = jun,

day = "5",

doi = "10.1103/KCYS-WHFC",

language = "English",

volume = "113",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

RIS

TY - JOUR

T1 - Observation and branching fraction measurements of 휒푐⁢퐽 →푝⁢¯푝⁢퐾0푆⁢퐾0푆

AU - BESIII Collaboration

AU - Ачасов, Михаил Николаевич

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - 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 No. 2023YFA1606000, No. 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts No. 12575092, No. 11635010, No. 11935015, No. 11935016, No. 11935018, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264, No. 12192265, No. 12221005, No. 12225509, No. 12235017, No. 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the Strategic Priority Research Program of Chinese Academy of Sciences under Contract No. XDA0480600; 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; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts No. 2021.0174, No. 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; Polish National Science Centre under Contract No. 2024/53/B/ST2/00975; STFC (United Kingdom); Swedish Research Council under Contract No. 2019.04595; U. S. Department of Energy under Contract No. DE-FG02-05ER41374.

PY - 2026/6/5

Y1 - 2026/6/5

N2 - Based on (2.712 ±0.014) ×109 휓⁡(3686) events collected with the BESIII detector, the decays 휒푐⁢퐽 →푝⁢¯푝⁢퐾0푆⁢퐾0푆 (퐽 =0, 1, 2) are observed for the first time with statistical significances exceeding 5⁢휎. The measured branching fractions are ℬ⁡(휒푐⁢0 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(7.25 ±0.28 ±0.35) ×10−5, ℬ⁡(휒푐⁢1 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(1.33 ±0.12 ±0.07) ×10−5, and ℬ⁡(휒푐⁢2 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(2.51 ±0.16 ±0.12) ×10−5, where the first uncertainties are statistical and the second systematic. In addition, no significant structures are observed in the 푝⁢¯푝, 푝⁢퐾0푆, and ¯푝⁢퐾0푆 mass spectra.

AB - Based on (2.712 ±0.014) ×109 휓⁡(3686) events collected with the BESIII detector, the decays 휒푐⁢퐽 →푝⁢¯푝⁢퐾0푆⁢퐾0푆 (퐽 =0, 1, 2) are observed for the first time with statistical significances exceeding 5⁢휎. The measured branching fractions are ℬ⁡(휒푐⁢0 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(7.25 ±0.28 ±0.35) ×10−5, ℬ⁡(휒푐⁢1 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(1.33 ±0.12 ±0.07) ×10−5, and ℬ⁡(휒푐⁢2 →푝⁢¯푝⁢퐾0푆⁢퐾0푆) =(2.51 ±0.16 ±0.12) ×10−5, where the first uncertainties are statistical and the second systematic. In addition, no significant structures are observed in the 푝⁢¯푝, 푝⁢퐾0푆, and ¯푝⁢퐾0푆 mass spectra.

KW - Particle decays

KW - Branching fraction

UR - https://www.scopus.com/pages/publications/105051897653

U2 - 10.1103/KCYS-WHFC

DO - 10.1103/KCYS-WHFC

M3 - Article

VL - 113

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112003

ER -

ID: 83767486