Abstract
The cross-sections of [Formula: see text] and [Formula: see text] have been measured by Belle experiment. A resonance [Formula: see text] is observed in [Formula: see text] decay mode, while another resonance [Formula: see text] is observed in [Formula: see text] decay mode. The two resonances [Formula: see text] and [Formula: see text]’s parameters are consistent with each other, so a combined fit is performed to the two cross-sections assuming [Formula: see text] and [Formula: see text] are same resonance. [Formula: see text]’s parameters are determined to be [Formula: see text], [Formula: see text], where the first uncertainties are statistical and the second systematic. The ratio [Formula: see text] is also obtained and it indicates that [Formula: see text]’s main decay modes may be [Formula: see text]. We determine the lower limit of its leptonic decay width of around 40 eV, which can be compared with the theoretical expectations of different models.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
