20.500.12556/DiRROS-29041 Measurement of the branching fraction of the decay ▫$B^- \to D^0 \rho(770)^-$▫ at Belle II We measure the branching fraction of the decay �−→�0⁢�⁢(770)− using data collected with the Belle II detector. The data contain 387 million �⁢ ¯ � pairs produced in �+⁢�− collisions at the ϒ⁡(4⁢�) resonance. We reconstruct 8360±180 decays from an analysis of the distributions of the �− energy and the �⁢(770)− helicity angle. We determine the branching fraction to be (0.939±0.021⁢(stat)±0.050⁢(syst))%, in agreement with previous results. Our measurement improves the relative precision of the world average by more than a factor of two. Belle experiment beyond standard model magnetic spectrometer eksperiment Belle true false true American Physical Society ZDA Angleški jezik Slovenski jezik Neznano 2026-04-20 08:26:42 2026-04-20 08:26:43 2026-04-21 04:15:20 0000-00-00 00:00:00 2024 0 0 Nasl. z nasl. zaslona; Opis vira z dne 19. 7. 2024; Soavtorji iz Slovenije: Marko Bračko, Gaetano de Marino, Samo Korpar, Peter Križan, Manca Mrvar, Anja Novosel, Rok Pestotnik, Tomaž Podobnik, Ihor Prudiiev, Marko Starič, Luka Šantelj, Valentina I. Zhukova; str. L111103-1- L111103-8 no. 11 Vol. 109, L111103 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-04-18 2024-05-22 2024-06-21 539.1 2470-0029 10.1103/PhysRevD.109.L111103 202281731 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.L111103 1 e9501af8-3c81-11f1-b8c8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43363 RAZ_Adachi_Ichiro_2024.pdf RAZ_Adachi_Ichiro_2024.pdf 1 8E791E241952E19CA4BFF636E79DEFA3 c842a6f1772884a5ba5c351d620b344a5f293442abca9be61a5e9ff79e22cfca 00e4f222-3c83-11f1-b8c8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=43364 Institut Jožef Stefan 0 0 0