Search for the radiative decay D s + → γρ 770 +

Search for the radiative decay D s + → γρ 770 +

Using 7.33 fb−1 of e+e− collision data samples collected with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we search for the radiative decay Ds+→γρ770+ for the first time. A hint of Ds+→γρ770+ is observed with a statistical significance of 2.5σ. The branching fraction...

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Bibliographic Details
Main Authors: Ablikim, M, Achasov, MN, Adlarson, P, Afedulidis, O, Ai, XC, Aliberti, R, Amoroso, A, An, Q, Bai, Y, Bakina, O, Balossino, I, Ban, Y, Bao, H, Batozskaya, V, Begzsuren, K, Berger, N, Berlowski, M, Bertani, M, Bettoni, D, Bianchi, F, Bianco, E, Bortone, A, Boyko, I, Briere, RA, Gilman, A, MacKay, I, Malde, S, Tat, M, Wilkinson, G
Format: Journal article
Language:English
Published: Springer 2024
Description
Summary:Using 7.33 fb−1 of e+e− collision data samples collected with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we search for the radiative decay Ds+→γρ770+ for the first time. A hint of Ds+→γρ770+ is observed with a statistical significance of 2.5σ. The branching fraction of Ds+→γρ770+ is measured to be (2.2 ± 0.9stat. ± 0.2syst.) × 10−4, corresponding to an upper limit of 6.1 × 10−4 at the 90% confidence level.

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