Inclusive D∗± production in photon-photon collisions

M Alston‐Garnjost ,M Daoudi,J.C Sens,H Marsiske,G.P Yost,R.R Kofler,C Zeitlin,W Hofmann,F.C Erné,S Khacheryan,W Vernon,G Zapalac,R Belcinski,A Bay,P.J Oddone,H Yamamoto,G Shapiro,A Lu,M Pripstein,A Buijs,S Toutounchi,G Godfrey,R W Stephens ,K T Knöpfle ,L Mathis ,H H Bingham ,A P.t Palounek ,D A Bauer ,J G Layter ,S Chun ,D Crane ,A M Eisner ,D Pellett ,D O Caldwell ,D R Nygren ,S Yellin ,M K Sullivan ,Philippe Eberhard ,E M Wang ,H P Paar ,A R Clark ,C Buchanan ,S K Park ,J Lys ,T K Edberg ,A R Barker ,Robert W Kenney ,M G Strauss ,M L Stevenson ,B C Shen ,E S Miller ,S Loken ,W A Wenzel ,J S Steinman ,K Fairfield ,Y X Wang ,G Masek ,G Lynch ,R J Madaras ,D H Stork ,J M Hauptman ,D Lambert ,F Linde ,W Lin ,H Y Chao ,R R Ross ,M Roman ,J J Eastman ,R E Avery ,N A Nicol ,Y T Oyang ,W G.j Langeveld ,O I Dahl ,E D Bloom

doi:10.1016/0370-2693(90)90578-t

Abstract

Abstract The TPC/Two-Gamma Collaboration has measured the inclusive cross section for production of charmed D∗± mesons in photon-photon collisions. The reaction utilized was e+e-→e+e-D∗±X, with D∗±→DOπ+-, DO→K-+π ±, and either zero or one outgoing e± detected. The result, σ(e + e - → e + e - D ∗± X) = 74±26±19 pb , is in agreement with the quark parton mo del prediction for e+e- → e+e-c c , combined with a Lund model for the hadronization of the charmed quarks.

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