TY - JOUR

T1 - Observation of a New 푋⁡(3872) Production Process 푒+⁢푒−→휔⁢푋⁡(3872)

AU - BESIII Collaboration

AU - Ачасов, Михаил Николаевич

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

AU - Ablikim, M.

N1 - Observation of a New X(3872) Production Process e+e−→ωX(3872) / The BESIII Collaboration // Physical Review Letters. – 2023. – Vol. 130, No. 15. – P. 151904. – DOI 10.1103/physrevlett.130.151904. – EDN XSTSGY.

PY - 2023/4/12

Y1 - 2023/4/12

N2 - Using 4.7 fb^{-1} of e^{+}e^{-} collision data at center-of-mass energies from 4.661 to 4.951 GeV collected by the BESIII detector at the BEPCII collider, we observe the X(3872) production process e^{+}e^{-}→ωX(3872) for the first time. The significance is 7.8σ, including both the statistical and systematic uncertainties. The e^{+}e^{-}→ωX(3872) Born cross section and the corresponding upper limit at 90% confidence level at each energy point are reported. The line shape of the cross section indicates that the ωX(3872) signals may be from the decays of some nontrivial structures.

AB - Using 4.7 fb^{-1} of e^{+}e^{-} collision data at center-of-mass energies from 4.661 to 4.951 GeV collected by the BESIII detector at the BEPCII collider, we observe the X(3872) production process e^{+}e^{-}→ωX(3872) for the first time. The significance is 7.8σ, including both the statistical and systematic uncertainties. The e^{+}e^{-}→ωX(3872) Born cross section and the corresponding upper limit at 90% confidence level at each energy point are reported. The line shape of the cross section indicates that the ωX(3872) signals may be from the decays of some nontrivial structures.

UR - https://www.elibrary.ru/item.asp?id=61146104

UR - https://pubmed.ncbi.nlm.nih.gov/37115900

U2 - 10.1103/PhysRevLett.130.151904

DO - 10.1103/PhysRevLett.130.151904

M3 - Article

C2 - 37115900

VL - 130

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 15

M1 - 151904

ER -