First Exclusive Reconstruction of the $B^{*+},\ B^{*0},\ \text{and}\ B_s^{*0}$ Mesons and Precise Measurement of Their Masses
Year: 2026
Type: article
Abstract: Using proton-proton collision data collected by the CMS experiment at s = 13 TeV in 2016–2018, corresponding to an integrated luminosity of 140 fb − 1 , the first full reconstruction of the three vector B meson states, B * + , B * 0 , and B s * 0 , is performed. The mass differences between the excited mesons and their corresponding ground states are measured to be m ( B * + ) − m ( B + ) = 45.277 ± 0.039 ± 0.027 MeV , m ( B * 0 ) − m ( B 0 ) = 45.471 ± 0.056 ± 0.028 MeV , and m ( B s * 0 ) − m ( B s 0 ) = 49.407 ± 0.132 ± 0.041 MeV , 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.
Source: UCrea (University of Cantabria)
DOI: 10.5167/uzh-291798
Authors: Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J. W., Benato, L., Bergauer, T., Dragicevic, M., Giordano, C., Hussain, P. S., Jeitler, M., Krammer, N., Li, A., Liko, D., Matthewman, M., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., Shooshtari, M., Sonawane, M., Waltenberger, W., Wulz, C.-E., Janssen, T., Kwon, H., Ocampo Henao, D., Van Laer, T., Van Mechelen, P., Bierkens, J., Breugelmans, N., CMS Collaboration, et al
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7130711583
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