Measurement of direct f0(980) photoproduction on the proton.
نویسندگان
- M Battaglieri
- R De Vita
- A P Szczepaniak
- K P Adhikari
- M Aghasyan
- M J Amaryan
- P Ambrozewicz
- M Anghinolfi
- G Asryan
- H Avakian
- H Bagdasaryan
- N Baillie
- J P Ball
- N A Baltzell
- V Batourine
- I Bedlinskiy
- M Bellis
- N Benmouna
- B L Berman
- L Bibrzycki
- A S Biselli
- C Bookwalter
- S Bouchigny
- S Boiarinov
- R Bradford
- D Branford
- W J Briscoe
- W K Brooks
- S Bültmann
- V D Burkert
- J R Calarco
- S L Careccia
- D S Carman
- L Casey
- S Chen
- L Cheng
- E Clinton
- P L Cole
- P Collins
- D Crabb
- H Crannell
- V Crede
- J P Cummings
- D Dale
- A Daniel
- N Dashyan
- R De Masi
- E De Sanctis
- P V Degtyarenko
- A Deur
- S Dhamija
- K V Dharmawardane
- R Dickson
- C Djalali
- G E Dodge
- J Donnelly
- D Doughty
- M Dugger
- O P Dzyubak
- H Egiyan
- K S Egiyan
- L El Fassi
- L Elouadrhiri
- P Eugenio
- G Fedotov
- R Fersch
- T A Forest
- A Fradi
- M Y Gabrielyan
- L Gan
- M Garçon
- A Gasparian
- G Gavalian
- N Gevorgyan
- G P Gilfoyle
- K L Giovanetti
- F X Girod
- O Glamazdin
- J Goett
- J T Goetz
- W Gohn
- E Golovatch
- C I O Gordon
- R W Gothe
- L Graham
- K A Griffioen
- M Guidal
- N Guler
- L Guo
- V Gyurjyan
- C Hadjidakis
- K Hafidi
- H Hakobyan
- R S Hakobyan
- C Hanretty
- J Hardie
- N Hassall
- D Heddle
- F W Hersman
- K Hicks
- I Hleiqawi
- M Holtrop
- C E Hyde
- Y Ilieva
- D G Ireland
- B S Ishkhanov
- E L Isupov
- M M Ito
- D Jenkins
- H S Jo
- J R Johnstone
- K Joo
- H G Juengst
- T Kageya
- N Kalantarians
- D Keller
- J D Kellie
- M Khandaker
- P Khetarpal
- W Kim
- A Klein
- F J Klein
- A V Klimenko
- P Konczykowski
- M Kossov
- Z Krahn
- L H Kramer
- V Kubarovsky
- J Kuhn
- S E Kuhn
- S V Kuleshov
- V Kuznetsov
- J Lachniet
- J M Laget
- J Langheinrich
- D Lawrence
- T Lee
- L Lesniak
- Ji Li
- K Livingston
- M Lowry
- H Y Lu
- M Maccormick
- S Malace
- N Markov
- P Mattione
- M E McCracken
- B McKinnon
- B A Mecking
- J J Melone
- M D Mestayer
- C A Meyer
- T Mibe
- K Mikhailov
- T Mineeva
- R Minehart
- M Mirazita
- R Miskimen
- V Mochalov
- V Mokeev
- B Moreno
- K Moriya
- S A Morrow
- M Moteabbed
- E Munevar
- G S Mutchler
- P Nadel-Turonski
- I Nakagawa
- 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
- S Park
- E Pasyuk
- M Paris
- C Paterson
- S Anefalos Pereira
- J Pierce
- N Pivnyuk
- D Pocanic
- O Pogorelko
- S Pozdniakov
- J W Price
- Y Prok
- D Protopopescu
- B A Raue
- G Riccardi
- G Ricco
- M Ripani
- B G Ritchie
- G Rosner
- P Rossi
- F Sabatié
- M S Saini
- J Salamanca
- C Salgado
- A Sandorfi
- J P Santoro
- V Sapunenko
- D Schott
- R A Schumacher
- V S Serov
- Y G Sharabian
- D Sharov
- N V Shvedunov
- E S Smith
- L C Smith
- D I Sober
- D Sokhan
- A Starostin
- A Stavinsky
- S Stepanyan
- S S Stepanyan
- B E Stokes
- P Stoler
- K A Stopani
- I I Strakovsky
- S Strauch
- M Taiuti
- D J Tedeschi
- A Teymurazyan
- A Tkabladze
- S Tkachenko
- L Todor
- C Tur
- M Ungaro
- M F Vineyard
- A V Vlassov
- D P Watts
- X Wei
- L B Weinstein
- D P Weygand
- M Williams
- E Wolin
- M H Wood
- A Yegneswaran
- M Yurov
- L Zana
- J Zhang
- B Zhao
- Z W Zhao
چکیده
We report on the results of the first measurement of exclusive f_{0}(980) meson photoproduction on protons for E_{gamma}=3.0-3.8 GeV and -t=0.4-1.0 GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the pi;{+}pi;{-} channel by performing a partial wave analysis of the reaction gammap-->ppi;{+}pi;{-}. Clear evidence of the f_{0}(980) meson was found in the interference between P and S waves at M_{pi;{+}pi;{-}} approximately 1 GeV. The S-wave differential cross section integrated in the mass range of the f_{0}(980) was found to be a factor of about 50 smaller than the cross section for the rho meson. This is the first time the f_{0}(980) meson has been measured in a photoproduction experiment.
منابع مشابه
Scalar Meson Photoproduction
The light-quark non-strange scalar mesons a0(980), f0(980), f0(1370), a0(1450), f0(1500) and f0(1710) are of great interest as there is no generally accepted view of their structure which can encompass qqq̄q̄, molecular, qq̄ and glueball states in various combinations. It has been shown previously that the radiative decays of the scalar mesons to ρ and ω are a good probe of their structure and pro...
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عنوان ژورنال:
- Physical review letters
دوره 102 10 شماره
صفحات -
تاریخ انتشار 2009