Evidence for a backward peak in the gamma d -> pi(0)d cross section near the eta threshold
- Y. Ilieva
- B.L. Berman
- A.E. Kudryavtsev
- I.I. Strakovsky
- V.E. Tarasov
- M. Amarian
- P. Ambrozewicz
- M. Anghinolfi
- G. Asryan
- H. Avakian
- H. Bagdasaryan
- N. Baillie
- J.P. Ball
- N.A. Baltzell
- V. Batourine
- M. Battaglieri
- I. Bedlinskiy
- M. Bellis
- N. Benmouna
- A.S. Biselli
- S. Bouchigny
- S. Boiarinov
- R. Bradford
- D. Branford
- W.J. Briscoe
- W.K. Brooks
- S. B\ufcltmann
- V.D. Burkert
- C. Butuceanu
- J.R. Calarco
- S.L. Careccia
- D.S. Carman
- S. Chen
- P.L. Cole
- P. Collins
- P. Coltharp
- D. Crabb
- V. Crede
- R. De Masi
- E. De Sanctis
- R. De Vita
- P.V. Degtyarenko
- A. Deur
- R. Dickson
- C. Djalali
- G.E. Dodge
- J. Donnelly
- D. Doughty
- M. Dugger
- O.P. Dzyubak
- H. Egiyan
- K.S. Egiyan
- L. Elouadrhiri
- P. Eugenio
- G. Fedotov
- G. Feldman
- H. Funsten
- M. Gar\ue7on
- G. Gavalian
- G.P. Gilfoyle
- K.L. Giovanetti
- F.X. Girod
- J.T. Goetz
- A. Gonenc
- R.W. Gothe
- K.A. Griffioen
- M. Guidal
- N. Guler
- L. Guo
- V. Gyurjyan
- K. Hafidi
- R.S. Hakobyan
- F.W. Hersman
- K. Hicks
- I. Hleiqawi
- M. Holtrop
- C.E. Hyde-Wright
- D.G. Ireland
- B.S. Ishkhanov
- E.L. Isupov
- M.M. Ito
- D. Jenkins
- H.S. Jo
- K. Joo
- H.G. Juengst
- N. Kalantarians
- J.D. Kellie
- M. Khandaker
- W. Kim
- A. Klein
- F.J. Klein
- M. Kossov
- Z. Krahn
- L.H. Kramer
- V. Kubarovsky
- J. Kuhn
- S.E. Kuhn
- S.V. Kuleshov
- J. Lachniet
- J.M. Laget
- J. Langheinrich
- D. Lawrence
- K. Livingston
- H. Lu
- M. MacCormick
- N. Markov
- B. McKinnon
- B.A. Mecking
- M.D. Mestayer
- C.A. Meyer
- T. Mibe
- K. Mikhailov
- M. Mirazita
- R. Miskimen
- V. Mokeev
- K. Moriya
- S.A. Morrow
- M. Moteabbed
- E. Munevar
- G.S. Mutchler
- P. Nadel-Turonski
- R. Nasseripour
- S. Niccolai
- G. Niculescu
- I. Niculescu
- B.B. Niczyporuk
- M.R. Niroula
- R.A. Niyazov
- M. Nozar
- M. Osipenko
- A.I. Ostrovidov
- K. Park
- E. Pasyuk
- C. Paterson
- J. Pierce
- N. Pivnyuk
- O. Pogorelko
- S. Pozdniakov
- J.W. Price
- Y. Prok
- D. Protopopescu
- B.A. Raue
- G. Ricco
- M. Ripani
- B.G. Ritchie
- F. Ronchetti
- G. Rosner
- P. Rossi
- F. Sabati\ue9
- C. Salgado
- J.P. Santoro
- V. Sapunenko
- R.A. Schumacher
- V.S. Serov
- Y.G. Sharabian
- N.V. Shvedunov
- E.S. Smith
- L.C. Smith
- D.I. Sober
- A. Stavinsky
- S.S. Stepanyan
- S. Stepanyan
- B.E. Stokes
- P. Stoler
- S. Strauch
- M. Taiuti
- D.J. Tedeschi
- U. Thoma
- A. Tkabladze
- S. Tkachenko
- C. Tur
- M. Ungaro
- M.F. Vineyard
- A.V. Vlassov
- D.P. Watts
- L.B. Weinstein
- D.P. Weygand
- M. Williams
- E. Wolin
- M.H. Wood
- A. Yegneswaran
- L. Zana
- J. Zhang
- B. Zhao
- and Z. Zhao
Publication date
January 2010
DOI Publisher
Springer Science and Business Media LLCAbstract
High-quality cross sections for the reaction gamma d -> pi(0)d have been measured using the CLAS at Jefferson Lab over a wide energy range near and above the eta-meson photoproduction threshold. At backward c.m. angles for the outgoing pions, we observe a resonance-like structure near E(gamma) = 700 MeV. Our model analysis shows that it can be explained by eta excitation in the intermediate state. The effect is the result of the contribution of the N(1535) S(11)-resonance to the amplitudes of the subprocesses occurring between the two nucleons and of a two-step process in which the excitation of an intermediate eta-meson dominates
Add to ORKG