Spectroscopic assignments of the excited B-mesons

2019/03/31 by Stephen Godfrey, Kenneth Moats
Physics and Astronomy · #Current (fluid) #Excited state #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum #Quantum Chromodynamics and Particle Interactions #Quantum number #Quark #Quark model #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.1140/epja/i2019-12763-9

7 pages, 5 tables, expt error for B_2^* decay ratio corrected, some minor word edits

openalex created_date 2019/03/22 · arxiv created 2019/04/01 · openalex publication_date 2019/05/01 · arxiv updated 2019/06/26 · openalex updated_date 2026/08/05

Abstract

Excited B-mesons have been observed by the D0, CDF, LHCb and CMS experiments. We use the predictions of the relativized quark model to make quark model spectroscopic assignments for these states. We identify the B₂^*(5747) and B₁(5721) as the B₂^*[1³P₂] and B₁[1P₁] states and the B_s2^*(5840) and B_s1(5830) as the B_s2^*[1³P₂] and B_s1[1P₁] states. More information is needed to identify the B_J(5970) and B_J(5840) states and we suggest a number of measurements to make this identification: the determination of their J^P quantum numbers and either confirming or ruling out their decays to the Bπ final state. With the current information available we believe it most likely that the B_J(5970) is the B^*[2³S₁] state, with the B_J(5840) needing confirmation.

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