Search for e+e- → φχc0 and φηc2 (1D) at center-of-mass energies from 4.47 to 4.95 GeV
Utilizing a dataset of 6.7 fb(-1) from electron-positron collisions recorded by the BESIII detector at the BEPCII storage ring, a search is conducted for the processes e(+)e(-) -> phi chi(c0) and phi eta(c2)(1D) across centerof-mass energies from 4.47 to 4.95 GeV. In the absence of any significant signals, upper limits are set. These include limits on the dressed cross sections for e(+)e(-) -> phi chi(c0), as well as the product of the dressed cross section for e(+)e(-) -> phi eta(c2)(1D) and a sum of five branching fractions. Furthermore, the product of the electronic width of Y(4660) and the branching fraction of the Y(4660) ->phi chi(c0), denoted as Gamma Y-e+e-((4660)) B-Y(4660)->phi chi(c0), is determined to be <0.35 eV at the 90% confidence level.
WOS:001426279400001
Chinese Academy of Sciences
Budker Inst Nucl Phys SB RAS BINP
Uppsala University
Ruhr University Bochum
Zhengzhou University
Johannes Gutenberg University of Mainz
University of Turin
Chinese Academy of Sciences
Southeast University - China
Joint Institute for Nuclear Research - Russia
2025-01-31
111
1
012016
REVIEWED
EPFL
Funder | Funding(s) | Grant Number | Grant URL |
IHEP computing center | |||
National Key R&D Program of China | 2020YFA0406300;2020YFA0406400;2023YFA1606000 | ||
National Natural Science Foundation of China (NSFC) | 12035009;12375083;11635010;11735014;11935015;11935016;11935018;12025502;12035013;12061131003;12192260;12192261;12192262;12192263;12192264;12192265;12221005;12225509;12235017;12361141819 | ||
Show more |