Study of the Reactions ¯𝑛⁢𝑝→2⁢𝜋+⁢𝜋−, 2⁢𝜋+⁢𝜋−⁢𝜋0, and 2⁢𝜋+⁢𝜋−⁢2⁢𝜋0 Using 𝐽/𝜓→𝑝⁢𝜋−⁢¯𝑛

Standard

Study of the Reactions ¯𝑛⁢𝑝→2⁢𝜋+⁢𝜋−, 2⁢𝜋+⁢𝜋−⁢𝜋0, and 2⁢𝜋+⁢𝜋−⁢2⁢𝜋0 Using 𝐽/𝜓→𝑝⁢𝜋−⁢¯𝑛 / BESIII Collaboration ; Ачасов, Михаил Николаевич ; Мучной, Николай Юрьевич et al.

In: Physical Review Letters, Vol. 137, No. 3, 031902, 14.07.2026.

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

BibTeX

@article{13cb6dea6b1f45af87c968398669b365,

title = "Study of the Reactions ¯푛⁢푝→2⁢휋+⁢휋−, 2⁢휋+⁢휋−⁢휋0, and 2⁢휋+⁢휋−⁢2⁢휋0 Using 퐽/휓→푝⁢휋−⁢¯푛",

abstract = "We report an experimental investigation of the reactions ¯푛⁢푝→2⁢휋+⁢휋−, ¯푛⁢푝→2⁢휋+⁢휋−⁢휋0, and ¯푛⁢푝→2⁢휋+⁢휋−⁢2⁢휋0 using (10.087±0.044)×109 퐽/휓 events collected with the BESIII detector at the BEPCII storage ring. The antineutron (¯푛) is produced in the decay 퐽/휓→푝⁢휋−⁢¯푛 with studied momentum from 200 to 1174 MeV/푐, while the target proton originates from the hydrogen nuclei in the cooling oil of the beam pipe. This novel method pioneers the study of ¯푛-nucleon interactions at an 푒+⁢푒− collider, providing the first experimental data for ¯푛 momenta exceeding 800 MeV/푐.",

keywords = "Particle interactions",

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 and No. 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts 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; Program of Science and Technology Development Plan of Jilin Province of China under Contract No. 20230101021JC; 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 and 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 = jul,

day = "14",

doi = "10.1103/nm5t-qk3h",

language = "English",

volume = "137",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

}

RIS

TY - JOUR

T1 - Study of the Reactions ¯푛⁢푝→2⁢휋+⁢휋−, 2⁢휋+⁢휋−⁢휋0, and 2⁢휋+⁢휋−⁢2⁢휋0 Using 퐽/휓→푝⁢휋−⁢¯푛

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 and No. 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts 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; Program of Science and Technology Development Plan of Jilin Province of China under Contract No. 20230101021JC; 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 and 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 - 2026/7/14

Y1 - 2026/7/14

N2 - We report an experimental investigation of the reactions ¯푛⁢푝→2⁢휋+⁢휋−, ¯푛⁢푝→2⁢휋+⁢휋−⁢휋0, and ¯푛⁢푝→2⁢휋+⁢휋−⁢2⁢휋0 using (10.087±0.044)×109 퐽/휓 events collected with the BESIII detector at the BEPCII storage ring. The antineutron (¯푛) is produced in the decay 퐽/휓→푝⁢휋−⁢¯푛 with studied momentum from 200 to 1174 MeV/푐, while the target proton originates from the hydrogen nuclei in the cooling oil of the beam pipe. This novel method pioneers the study of ¯푛-nucleon interactions at an 푒+⁢푒− collider, providing the first experimental data for ¯푛 momenta exceeding 800 MeV/푐.

AB - We report an experimental investigation of the reactions ¯푛⁢푝→2⁢휋+⁢휋−, ¯푛⁢푝→2⁢휋+⁢휋−⁢휋0, and ¯푛⁢푝→2⁢휋+⁢휋−⁢2⁢휋0 using (10.087±0.044)×109 퐽/휓 events collected with the BESIII detector at the BEPCII storage ring. The antineutron (¯푛) is produced in the decay 퐽/휓→푝⁢휋−⁢¯푛 with studied momentum from 200 to 1174 MeV/푐, while the target proton originates from the hydrogen nuclei in the cooling oil of the beam pipe. This novel method pioneers the study of ¯푛-nucleon interactions at an 푒+⁢푒− collider, providing the first experimental data for ¯푛 momenta exceeding 800 MeV/푐.

KW - Particle interactions

UR - https://www.scopus.com/pages/publications/105045947825

U2 - 10.1103/nm5t-qk3h

DO - 10.1103/nm5t-qk3h

M3 - Article

VL - 137

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 3

M1 - 031902

ER -

ID: 83243352