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

P.L. Frabetti,H. W.K. Cheung,J. P. Cumalat,C. Dallapiccola,J. F. Ginkel,William E. Johns,Matthew S. Nehring,E.W. Vaandering,J. N. Butler,S. Cihangir,I. Gaines,P. H. Garbincius,L. Garren,S.A. Gourlay,D. J. Harding,P. Kasper,A. Kreymer,P. Lebrun,S. Shukla,M. Vittone,R. Baldini-Ferroli,L. Benussi,M. Bertani,Stefano Bianco,F. Fabbri,S. Pacetti,A. Zallo,C. Cawlfield,R. Culbertson,R. Gardner,E. Gottschalk,R. Greene,K.S Park,A. Rahimi,James E Wiss,G. Alimonti,G. Bellini,M. Boschini,D. Brambilla,B. Caccianiga,L. Cinquini,M. DiCorato,P. Dini,M. Giammarchi,P. Inzani,F. Leveraro,S. Malvezzi,D. Menasce,E. Meroni,Laura Milazzo,L. Moroni,D. Pedrini,L. Perasso,F. Prelz,A. Sala,S. Sala,D. Torretta,D. Buchholz,D. Claes,B. Gobbi,B. OReilly,J. M. Bishop,N. M. Cason,C. J. Kennedy,G. N. Kim,T. F. Lin,D. L. Puseljic,R. Ruchti,W. D. Shephard,J. A. Swiatek,Z. Y. Wu,V. Arena,G. Boca,G. Bonomi,C. Castoldi,G. Gianini,M. M. Merlo,S. P. Ratti,C. Riccardi,L. Viola,P. Vitulo,A. Lopez,L. Mendez,A. Mirles,E. Montiel,D. Olaya,J E Ramírez,C. Rivera,Y. Zhang,J. M. Link,V.S. Paolone,P. M. Yager,J. R. Wilson,J. Cao,M. Hosack,P. Sheldon,F. Davenport,K. Cho,K. Danyo,T. Handler,B.G. Cheon,Y. S. Chung,J. S. Kang,K.Y. Kim,K. B. Lee,S. S. Myung

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

2004

P.L. Frabetti
H. W.K. Cheung
J. P. Cumalat
C. Dallapiccola
J. F. Ginkel
William E. Johns
Matthew S. Nehring
E.W. Vaandering
J. N. Butler
S. Cihangir
I. Gaines
P. H. Garbincius
L. Garren
S.A. Gourlay
D. J. Harding
P. Kasper
A. Kreymer
P. Lebrun
S. Shukla
M. Vittone
R. Baldini-Ferroli
L. Benussi
M. Bertani
Stefano Bianco
F. Fabbri
S. Pacetti
A. Zallo
C. Cawlfield
R. Culbertson
R. Gardner
E. Gottschalk
R. Greene
K.S Park
A. Rahimi
James E Wiss
G. Alimonti
G. Bellini
M. Boschini
D. Brambilla
B. Caccianiga
L. Cinquini
M. DiCorato
P. Dini
M. Giammarchi
P. Inzani
F. Leveraro
S. Malvezzi
D. Menasce
E. Meroni
Laura Milazzo
L. Moroni
D. Pedrini
L. Perasso
F. Prelz
A. Sala
S. Sala
D. Torretta
D. Buchholz
D. Claes
B. Gobbi
B. OReilly
J. M. Bishop
N. M. Cason
C. J. Kennedy
G. N. Kim
T. F. Lin
D. L. Puseljic
R. Ruchti
W. D. Shephard
J. A. Swiatek
Z. Y. Wu
V. Arena
G. Boca
G. Bonomi
C. Castoldi
G. Gianini
M. M. Merlo
S. P. Ratti
C. Riccardi
L. Viola
P. Vitulo
A. Lopez
L. Mendez
A. Mirles
E. Montiel
D. Olaya
J E Ramírez
C. Rivera
Y. Zhang
J. M. Link
V.S. Paolone
P. M. Yager
J. R. Wilson
J. Cao
M. Hosack
P. Sheldon
F. Davenport
K. Cho
K. Danyo
T. Handler
B.G. Cheon
Y. S. Chung
J. S. Kang
K.Y. Kim
K. B. Lee
S. S. Myung

Abstract The narrow dip observed at 1.9 GeV/ c 2 by the Fermilab experiment E687 in diffractive photoproduction of 3 π + 3 π − 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.

Keywords:

Particle physics
Fermilab
Resonance
Physics
Diffraction
Nuclear magnetic resonance
Nuclear physics
meson production

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