{ "id": "hep-ph/9403359", "version": "v1", "published": "1994-03-25T01:26:22.000Z", "updated": "1994-03-25T01:26:22.000Z", "title": "Production and Decay of D_1(2420)^0 and D_2^*(2460)^0", "authors": [ "The CLEO Collaboration" ], "comment": "15 pages in REVTEX format. hardcopies with figures can be obtained by sending mail to: preprints@lns62.lns.cornell.edu", "journal": "Phys.Lett.B331:236-244,1994; ERRATUM-ibid.B342:453,1995", "doi": "10.1016/0370-2693(94)90968-7", "categories": [ "hep-ph", "hep-ex" ], "abstract": "We have investigated $D^{+}\\pi^{-}$ and $D^{*+}\\pi^{-}$ final states and observed the two established $L=1$ charmed mesons, the $D_1(2420)^0$ with mass $2421^{+1+2}_{-2-2}$ MeV/c$^{2}$ and width $20^{+6+3}_{-5-3}$ MeV/c$^{2}$ and the $D_2^*(2460)^0$ with mass $2465 \\pm 3 \\pm 3$ MeV/c$^{2}$ and width $28^{+8+6}_{-7-6}$ MeV/c$^{2}$. Properties of these final states, including their decay angular distributions and spin-parity assignments, have been studied. We identify these two mesons as the $j_{light}=3/2$ doublet predicted by HQET. We also obtain constraints on {\\footnotesize $\\Gamma_S/(\\Gamma_S + \\Gamma_D)$} as a function of the cosine of the relative phase of the two amplitudes in the $D_1(2420)^0$ decay.", "revisions": [ { "version": "v1", "updated": "1994-03-25T01:26:22.000Z" } ], "analyses": { "keywords": [ "final states", "production", "decay angular distributions", "spin-parity assignments", "properties" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "inspire": 372349 } } }