Measurement of inclusive [formula omitted] production in two-photon collisions at LEP

M Acciarri,H Hofer,M Steuer,R Faccini,K Freudenreich,F Ziegler,K Lübelsmeyer,E Pistolesi,R Van Gulik,A Lebedev,D Haas,M Gataullin,A Rosca,U Becker,A Degré,B De La Cruz,F Muheim,R Leiste,S Villa,D Luckey,A Chen,T Moulik,P Extermann,H Nowak,M Rescigno,T Angelescu,M Pauluzzi,A Robohm,A Buijs,G Carlino,A Favara,G Holzner,T Paul,P Laurikainen,G Zilizi,V Shoutko,M Chemarin,I Vodopianov,D Van Dierendonck,I Vetlitsky,D Kamrad,S Braccini,A Barczyk,D Hatzifotiadou,M Musy,H Postema,D Ren,F Di Lodovico,S Shevchenko,P De Jong,W Kittel,L Lugnier,D Kiss,P Levtchenko,F Ferroni,N Raja,J Berdugo,H Milcent,A Shvorob,A Arefiev,P Achard,A Engler,J Busenitz,F Denotaristefani,D Ruschmeier,S Schmidt-Kaerst,A Kunin,P Berges,E Valente,F Behner,N Shivarov,M Von Der Mey,S Wynhoff,T Azemoon,T Sztaricshai,A Balandras,B Monteleoni,G Schwering,E Shumilov,G Alemanni,R Barillère,M Bourquin,G Coignet,F Anselmo,B Bertucci,S Banerjee,C Furetta,R Ramelli,V Plyaskin,M Lebeau,Yu Galaktionov,S Pensotti,P Marchesini,L Fredj,K Riles,F Cesaroni,R Ostonen,F Cotorobai,T Van Rhee,F Marzano,A Lavorato,M Capell,C Palomares,T Siedenburg,G Ambrosi,A Gurtu,F Pierella,M Napolitano,M Pedace,O Grimm,A Seganti,M Chamizo,V Pojidaev,A Hasan,D Duchesneau,G Grenier,D Della Volpe,E Fiandrini,D Vicinanza,J Casaus,G Castellini,A Bay,H Anderhub,J Salicio,A Button,L Tauscher,J Alcaraz,S Patricelli,P Duinker,G Rahal-Callot,D Pandoulas,P Bartalini,J Rodin,J Ulbricht,G Passaleva,D Sciarrino,S Cucciarelli,V Koutsenko,G Raven,W Wallraff,L Romero,H Suter,G Viertel,C Dionisi,L Servoli,D Perret-Gallix,A De Salvo,I Korolko,G Marian,W Krenz,M Vivargent,R De Asmundis,S Costantini,N Gheordanescu,A Vorvolakos,P Lebrun,M Basile,G Landi,Y Uchida,G Mirabelli,A Buffini,B Borgia,G Chiefari,P Déglon,S Reucroft,H Vogt,B Stoyanov,I Clare,L Bellucci,D Dufournand,M Wadhwa,D Peach,J Hirschfelder,H El Mamouni,M Kräber,B Cozzoni,P Le Coultre,L Baksay,A Mihul,K Sudhakar,L W Jones ,L Gutay ,S Falciano,S Blyth ,F M Brochu ,R C Ball ,T Hebbeker,A Böhm,P Garcı́a-Abia ,C G Yang ,J Bürger ,Yu Zalite ,V A Schegelsky ,Saptaparna Bhattacharya ,J H Field ,A Doria,Z.P Zhang,F Filthaut,Gennaro De Pascale ,H.K Park,P Bagnaia,B N Jin ,J P Martin ,G S Muanza ,W J Burger ,S Giagu,G B Mohanty ,H.F Chen,L Merola,A Weber,F J Eppling ,T Aziz,A Hervé,О Адриани ,Z Szillási ,I Josa-Mutuberrı́A,X Chéreau ,S Sarkar,N Cavallo,F Linde ,D Schmitz,G Forconì ,D Bourilkov,M E Sarakinos ,T Dai ,C Civinini,A J.m Muijs ,F Cindolo,X.L Wang,C Li,L Malgeri,H Rykaczewski,H.J Lee,R Paramatti,I Durán ,S C Tonwar ,Péter Molnár ,R Clare,S Riemann,G Organtini,C Mañá ,V K Gupta ,R A Khan ,D.H Kim,D Stickland ,M Meschini,A Straessner,M W Gruenewald ,L Barone,L Taylor,S X Wu ,X W Tang ,W Lin ,Y D Oh ,X D Cai ,C Paus,L Cifarelli,M T Dova ,F.C Erné,Y S Lu ,D Kim,S S Gau ,V Andreev ,Z F Gong ,F Pauß ,J.B Ye,Howard A Stone ,I Iashvili,J A Rubio ,F Nessi‐Tedaldi ,M Guida,P Denes,P Ladrón De Guevara ,O L Fedin ,A P Colijn ,J M Le Goff ,J Allaby,Michel Fabre ,R Battiston,D J Schotanus ,Z.M Wang,B A Petersen ,S.C Kim,Samuel C.C Ting,H B Newman ,L Z Sun ,J Pothier,G.M Chen,C Timmermans,H R Hoorani ,M Diemoz,A Aloisio,A Dominguez,G Chen,C Schäfer,E Leonardi,R Y Zhu ,S Mele,G Y Zhu ,N Produit,W.G Ma,P Piroué ,D Mangeol,P Raics,B C Smith ,H Fesefeldt,F Becattini,D Son,Giovanni Romeo ,M Yang,S Hou ,A Stone,S C Yeh ,M Dittmar,M Felcini,N Colino,S M Ting ,M N Kienzle‐Focacci ,S Paoletti,J Mnich,А Малинин ,Yu‐Wei Chang ,A K Kopp ,M.P Sanders,I Fisk,B.L Betev,A C König ,H Schopper,A Biland,K Mazumdar,I B Laktineh ,U K Chaturvedi ,C Luci,C Tully,Á Csilling ,C Cecchi,K L Tung ,M A Falagán ,V Brigljević ,C Sciacca,Z Xu ,J A Van Dalen ,Hai Yang ,M G Alviggi ,J.K Kim,A Klimentov,W Lohmann,M Aguilar-Benı́tez ,J Kirkby,R D’alessandro ,L Boldizsár ,J J Blaising ,P.G Rancoita,M Pieri,G Vesztergombi,C H Lin ,A A Vorobyov ,E Sánchez ,K Lassila-Perini,E Longo,M A Rahaman ,T Nießen ,S Vlachos,S.N Ganguli,R.W Kraemer,K Deiters,M Kaur,P A Razis ,B Z Yang ,J Fay,P H Fisher ,W Lustermann,M Biasini,A M Cartacci ,M Maity,B.P Roe,A Nisati,H.S Chen,P Lecoq,S Rosier‐Lees ,J G Branson ,D Piccolo,A Zalite ,S Gentile,T Ferguson,P Wienemann,I.H Park,P Paolucci,F Cavallari,П Спиллантини ,G Sultanov,P Lecomte,G Massaro ,I Vorobiev,H G Wilkens ,Z.A Liu,M Cerrada,L Lista,L Xia,J Tóth,P Hidas,J Quartieri,M Wang,J D Swain ,A Zichichi,G J Bobbink ,Matthias Weber ,W J Metzger ,L Luminari,R R Mcneil ,M Campanelli,H Vogel,M Pohl,D Prokofiev,Margot Zöller

doi:10.1016/s0370-2693(99)01153-3

Abstract

Inclusive production of D ∗± mesons in two-photon collisions was measured by the L3 experiment at LEP. The data were collected at a centre-of-mass energy s =189 GeV with an integrated luminosity of 176.4 pb −1 . Differential cross sections of the process e + e −→ e + e − D ∗± X are determined as functions of the transverse momentum and pseudorapidity of the D ∗± mesons in the kinematic region 1 GeV<p T D ∗ <5 GeV and |η D ∗ | <1.4 . The cross section integrated over this phase space domain is measured to be 132±22 (stat.)±26 (syst.) pb . The differential cross sections are compared with next-to-leading order perturbative QCD calculations.

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