Study of Open-Charm Decays and Radiative Transitions of the X(3872)

BESIII Collaboration

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18 Scopus citations


The processes X(3872)→D*0D¯0+c.c.,γJ/ψ,γψ(2S), and γD+D- A re searched for in a 9.0 fb-1 data sample collected at center-of-mass energies between 4.178 and 4.278 GeV with the BESIII detector. We observe X(3872)→D∗0D0¯+c.c. and find evidence for X(3872)→γJ/ψ with statistical significances of 7.4σ and 3.5σ, respectively. No evident signals for X(3872)→γψ(2S) and γD+D- A re found, and the upper limit on the relative branching ratio Rγψ{B[X(3872)→γψ(2S)]}/{B[X(3872)→γJ/ψ]}<0.59 is set at 90% confidence level. Measurements of branching ratios relative to decay X(3872)→π+π-J/ψ are also reported for decays X(3872)→D∗0D0¯+c.c.,γψ(2S),γJ/ψ, and γD+D-, as well as the non-D∗0D0¯ three-body decays π0D0D0¯ and γD0D0¯.

Original languageEnglish (US)
Article number241802
JournalPhysical review letters
Issue number24
StatePublished - Jun 19 2020

Bibliographical note

Funding Information:
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 Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11905179, No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, and No. 11961141012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1532257, No. U1532258, No. U1732263, and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054 and No. DH160214; the Swedish Research Council; U.S. Department of Energy under Awards No. DE-FG02-05ER41374, No. DE-SC-0010118, and No. DE-SC-0012069.

Publisher Copyright:
© 2020 authors. Published by the American Physical Society.


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