Article
Search for the Theta(+) pentaquark in the gamma d ->Lambda nK(+) reaction measured with the CLAS spectrometer
Physical Review Letters
(2006)
- S Niccolai
- M Mirazita
- P Rossi
- NA Baltzell
- DS Carman
- K Hicks
- B McKinnon
- T Mibe
- S Stepanyan
- DJ Tedeschi
- G Adams
- P Ambrozewicz
- SA Pereira
- M Anghinolfi
- G Asryan
- H Avakian
- H Bagdasaryan
- N Baillie
- JP Ball
- V Batourine
- M Battaglieri
- I Bedlinskiy
- M Bektasoglu
- M Bellis
- N Benmouna
- BL Berman
- AS Biselli
- S Boiarinov
- S Bouchigny
- R Bradford
- D Branford
- WJ Briscoe
- WK Brooks
- S Bultmann
- VD Burkert
- C Butuceanu
- JR Calarco
- SL Careccia
- B Carnahan
- S Chen
- PL Cole
- P Collins
- P Coltharp
- D Crabb
- H Crannell
- V Crede
- JP Cummings
- N Dashyan
- PV Degtyarenko
- R De Masi
- A Deppman
- E De Sanctis
- A Deur
- R DeVita
- KV Dharmawardane
- C Djalali
- GE Dodge
- J Donnelly
- D Doughty
- M Dugger
- OP Dzyubak
- H Egiyan
- KS Egiyan
- L El Fassi
- L Elouadrhiri
- P Eugenio
- G Fedotov
- G Feldman
- H Funsten
- M Garcon
- G Gavalian
- GP Gilfoyle
- KL Giovanetti
- FX Girod
- JT Goetz
- A Gonenc
- CIO Gordon
- RW Gothe
- KA Griffioen
- M Guidal
- N Guler
- L Guo
- V Gyurjyan
- C Hadjidakis
- K Hafidi
- H Hakobyan
- RS Hakobyan
- J Hardie
- FW Hersman
- I Hleiqawi
- M Holtrop
- CE Hyde-Wright
- Y Ilieva
- DG Ireland
- BS Ishkhanov
- EL Isupov
- MM Ito
- D Jenkins
- HS Jo
- K Joo
- HG Juengst
- JD Kellie
- M Khandaker
- W Kim
- A Klein
- FJ Klein
- AV Klimenko
- M Kossov
- LH Kramer
- V Kubarovsky
- J Kuhn
- SE Kuhn
- SV Kuleshov
- J Lachniet
- J Langheinrich
- D Lawrence
- T Lee
- J Li
- K Livingston
- H Lu
- M MacCormick
- N Markov
- BA Mecking
- J Mellor
- JJ Melone
- MD Mestayer
- CA Meyer
- K Mikhailov
- R Minehart
- R Miskimen
- V Mokeev
- L Morand
- SA Morrow
- M Moteabbed
- GS Mutchler
- P Nadel-Turonski
- J Napolitano
- R Nasseripour
- G Niculescu
- I Niculescu
- BB Niczyporuk
- MR Niroula
- RA Niyazov
- M Nozar
- JD Echeimberg
- M Osipenko
- AI Ostrovidov
- K Park
- E Pasyuk
- C Paterson
- J Pierce
- N Pivnyuk
- D Pocanic
- O Pogorelko
- S Pozdniakov
- BM Preedom
- JW Price
- Y Prok
- D Protopopescu
- BA Raue
- G Riccardi
- G Ricco
- M Ripani
- BG Ritchie
- F Ronchetti
- G Rosner
- F Sabatie
- C Salgado
- JP Santoro
- V Sapunenko
- RA Schumacher
- VS Serov
- YG Sharabian
- NV Shvedunov
- ES Smith
- LC Smith
- DI Sober
- A Stavinsky
- SS Stepanyan
- BE Stokes
- P Stoler
- II Strakovsky
- S Strauch
- M Taiuti
- U Thoma
- A Tkabladze
- S Tkachenko
- L Todor
- C Tur
- M Ungaro
- MF Vineyard
- AV Vlassov
- DP Watts
- LB Weinstein
- DP Weygand
- M Williams, University of Massachusetts - Amherst
- E Wolin
- MH Wood
- A Yegneswaran
- L Zana
- J Zhang
- B Zhao
- Z Zhao
Abstract
For the first time, the reaction gamma d ->Lambda nK(+) has been analyzed in order to search for the exotic pentaquark baryon Theta(+)(1540). The data were taken at Jefferson Laboratory, using the Hall-B tagged-photon beam of energy between 0.8 and 3.6 GeV and the CEBAF Large Acceptance Spectrometer (CLAS). No statistically significant structures were observed in the nK(+) invariant-mass distribution. The upper limit on the gamma d ->Lambda Theta(+) integrated cross section has been calculated and found to be between 5 and 25 nb, depending on the production model assumed. The upper limit on the differential cross section is also reported.
Disciplines
Publication Date
January 1, 2006
Publisher Statement
Doi:10.1103/PhysRevLett.9
Copyright 2006 by The American Physical Society.
Citation Information
S Niccolai, M Mirazita, P Rossi, NA Baltzell, et al.. "Search for the Theta(+) pentaquark in the gamma d ->Lambda nK(+) reaction measured with the CLAS spectrometer" Physical Review Letters Vol. 97 Iss. 3 (2006) Available at: http://works.bepress.com/michael_williams/9/