First Exclusive Reconstruction of the; ; ; ; ; B; ; ; *; +; ; ; ; ; ,; ; ; ; ; B; ; ; *; 0; ; ; ; ; , and; ; ; ; ; B; ; ; s; ; ; *; 0; ; ; ; ; Mesons and Precise Measurement of Their Masses Journal Article uri icon

Overview

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.;

publication date

  • January 22, 2026

Date in CU Experts

  • February 4, 2026 8:19 AM

Full Author List

  • Hayrapetyan A; Makarenko V; Tumasyan A; Adam W; Andrejkovic JW; Benato L; Bergauer T; Dragicevic M; Giordano C; Hussain PS

author count

  • 2421

Other Profiles

International Standard Serial Number (ISSN)

  • 0031-9007

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

Additional Document Info

volume

  • 136

issue

  • 3

number

  • 031902