Measurements of the branching fractions of the inclusive decays D0(D+)→π+π+π−X

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,R S Shi ,Changsheng Xie ,M G Zhao ,W S Cheng ,D M Li ,Y X Zhao ,Chao Chen,F Z Qi ,Heng Xu ,W X Gong ,G Y Zhang ,H Li,Lu Liu,W D Li ,X L Lu ,D J White ,W Y Sun ,R E De Boer ,J H Jeong ,J W Li ,Y J Sun ,B L Zhang ,M L Chen

doi:10.1103/physrevd.107.032002

Abstract

Using e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the branching fractions of the inclusive decays D0→π+π+π−X and D+→π+π+π−X, where pions from KS0 decays have been excluded from the π+π+π− system and X denotes any possible particle combination. The branching fractions of D0(D+)→π+π+π−X are determined to be B(D0→π+π+π−X)=(17.60±0.11±0.22)% and B(D+→π+π+π−X)=(15.25±0.09±0.18)%, where the first uncertainties are statistical and the second systematic.Received 9 January 2023Accepted 19 January 2023DOI:https://doi.org/10.1103/PhysRevD.107.032002Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasBranching fractionPhysical SystemsCharmed mesonsTechniquesLepton collidersParticles & Fields

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