Measurement of e + e − → ωη ′ cross sections at s = 2. 000 to 3. 080 GeV

Measurement of e + e − → ωη ′ cross sections at s = 2. 000 to 3. 080 GeV

We measured the Born cross sections for the process e+e− → ωη′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a statistical significance of 9.6σ. A Breit-Wigner fit determines its mass to be MR = (2153 ± 30...

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Podrobná bibliografie
Hlavní autoři: Ablikim, M, Achasov, MN, Adlarson, P, Ai, XC, Aliberti, R, Amoroso, A, An, MR, An, Q, Bai, Y, Bakina, O, Balossino, I, Ban, Y, Batozskaya, V, Begzsuren, K, Berger, N, Berlowski, M, Bertani, M, Bettoni, D, Bianchi, F, Bianco, E, Bortone, A, Boyko, I, Briere, RA, Brueggemann, A, Fischer, K, Gilman, A, Malde, S, Tat, M, Wilkinson, G, Zhang, Y
Médium: Journal article
Jazyk:English
Vydáno: Springer 2024
Popis
Shrnutí:We measured the Born cross sections for the process e+e− → ωη′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a statistical significance of 9.6σ. A Breit-Wigner fit determines its mass to be MR = (2153 ± 30 ± 31) MeV/c2 and its width to be ΓR = (167 ± 77 ± 7) MeV, where the first uncertainties are statistical and the second are systematic.

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