On the narrow dip structure at 1.9 GeV/c2 in diffractive photoproduction

P L Frabetti ,L Moroni,G Alimonti,A Sala,G Gianini,T Handler,S.A Gourlay,C Rivera,F Prelz,R Baldini-Ferroli,P Kasper,S Sala,D Menasce,M Bertani,L Viola,M Boschini,P Vitulo,D Pedrini,Y Zhang,E Montiel,K Danyo,K Park,C Cawlfield,L Benussi,P Inzani,S Bianco,B Caccianiga,L Garren,A Mirles,C Dallapiccola,R Culbertson,E Meroni,G Bonomi,G Boca,P Lebrun,M Hosack,D Buchholz,A Kreymer,C Castoldi,B Gobbi,M Vittone,P Dini,I Gaines,D Olaya,R Greene,F Davenport,D Torretta,E Gottschalk,S Malvezzi,S Pacetti,F Leveraro,S Shukla,D Brambilla,K Cho,S Cihangir,M Dicorato,M Giammarchi,G Bellini,J Wiss,L Perasso,L Cinquini,C Riccardi,A Zallo,J S Kang ,S P Ratti ,K B Lee ,P Sheldon ,L Cunqueiro ,David J Harding ,M M Merlo ,M Nehring ,W Johns ,K Y Kim ,P M Yager ,B O’reilly ,F L Fabbri ,V Paolone ,J E Ramirez Vargas ,A López ,J R Wilson ,T F Lin ,G N Kim ,J A Swiatek ,N M Cason ,J M Link ,R Gardner ,C J Kennedy ,J M Bishop ,P H Garbincius ,Junpeng Cao ,Y S Chung ,Vincenzo Arena ,J P Cumalat ,H W K Cheung ,D R Claes ,J N Butler ,R Ruchti ,Z Wu ,Lorenzo Milazzo ,W D Shephard ,A M Rahimi ,B G Cheon ,J F Ginkel ,Eric Wayne Vaandering ,D L Pušeljić ,S S Myung

doi:10.1016/j.physletb.2003.10.071

On the narrow dip structure at 1.9 GeV/c2 in diffractive photoproduction

P L Frabetti , L Moroni + Show 104 more

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https://doi.org/10.1016/j.physletb.2003.10.071

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Journal: Physics Letters B	Publication Date: Nov 19, 2003
Citations: 193	License type: other-oa

Affiliation: INFN Sezione di Bologna, Fermi National Accelerator Laboratory, University of Colorado Boulder, University of Puerto Rico-Mayaguez

#Narrow Dip Structure #Diffractive Photoproduction #Narrow Dip #Narrow Structure #Fermilab Experiment #Dip Structure

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The narrow dip observed at 1.9 GeV/c2 by the Fermilab experiment E687 in diffractive photoproduction of 3π+3π− is examined. The E687 data are refitted, a mechanism is proposed to explain why this resonance appears as a dip, and possible interpretations are discussed.

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On the narrow dip structure at 1.9 GeV/c2 in diffractive photoproduction