Using proton-proton collision data collected by the CMS experiment at (Formula presented) in 2016-2018, corresponding to an integrated luminosity of (Formula presented), the first full reconstruction of the three vector (Formula presented) meson states, (Formula presented), (Formula presented), and (Formula presented), is performed. The mass differences between the excited mesons and their corresponding ground states are measured to be (Formula presented), (Formula presented), and (Formula presented), where the first uncertainties are statistical and the second are systematic. These results improve on the precision of previous measurements by an order of magnitude.

Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J., Benato, L., et al. (2026). First Exclusive Reconstruction of the (Formula presented), (Formula presented), and (Formula presented) Mesons and Precise Measurement of Their Masses. PHYSICAL REVIEW LETTERS, 136(3) [10.1103/njf9-4zfv].

First Exclusive Reconstruction of the (Formula presented), (Formula presented), and (Formula presented) Mesons and Precise Measurement of Their Masses

Xiao J.;Brivio F.;Camagni V.;Cetorelli F.;De Guio F.;Dinardo M. E.;Gerosa R.;Ghezzi A.;Govoni P.;Guzzi L.;Lavizzari G.;Lucchini M. T.;Moroni L.;Paganoni M.;Palluotto S.;Perego A.;Pizzati G.;Ragazzi S.;Tabarelli de Fatis T.;
2026

Abstract

Using proton-proton collision data collected by the CMS experiment at (Formula presented) in 2016-2018, corresponding to an integrated luminosity of (Formula presented), the first full reconstruction of the three vector (Formula presented) meson states, (Formula presented), (Formula presented), and (Formula presented), is performed. The mass differences between the excited mesons and their corresponding ground states are measured to be (Formula presented), (Formula presented), and (Formula presented), where the first uncertainties are statistical and the second are systematic. These results improve on the precision of previous measurements by an order of magnitude.
Articolo in rivista - Articolo scientifico
Hadrons
English
22-gen-2026
2026
136
3
031902
open
Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J., Benato, L., et al. (2026). First Exclusive Reconstruction of the (Formula presented), (Formula presented), and (Formula presented) Mesons and Precise Measurement of Their Masses. PHYSICAL REVIEW LETTERS, 136(3) [10.1103/njf9-4zfv].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/594064
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