Determination of quantum numbers for several excited charmed mesons observed in B−→D*+π−π− decays

The LHCb Collaboration, Семен Исаакович Эйдельман, Павел Петрович Кроковный, Виталий Сергеевич Воробьев

Research output: Contribution to journalArticlepeer-review

Abstract

A four-body amplitude analysis of the B−→D*+π−π− decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D∗1(2600), D2(2740) and D∗3(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7  fb−1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

Original languageEnglish
Article number032005
Number of pages24
JournalPhysical Review D
Volume101
Issue number3
DOIs
Publication statusPublished - 20 Feb 2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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