Measurement of the beam asymmetry in η photoproduction off the proton
Measurement of the beam asymmetry in η photoproduction off the proton
复制标题
质子光产生中光束不对称性的测量
DOI:
10.1140/epja/i2007-10447-9
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
TAPS Collaboration]
中科院分区:
文献类型:
--
作者:
D. Elsner [CBELSA;TAPS Collaboration]
The beam asymmetry, Σ , was measured at ELSA in the reactionp→ ηpusing linearly polarised tagged photon beams, produced by coherent bremsstrahlung off a diamond. The crystal was oriented to provide polarised photons in the energy rangeEγ= 800 to 1400MeV with the maximum polarisation ofPγ= 49 % obtained at 1305MeV. Both dominant decay modes of the η into two photons and 3π0were used to extract the beam asymmetry from the azimuthal modulation of the cross-section. The measurements cover the angular range Θcm≃ 50 -150 degrees. Large asymmetries up to 80% are observed, in agreement with a previous measurement. The eta-MAID model and the Bonn-Gatchina partial wave analysis describe the measurements, but the required partial waves differ significantly.
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DOI:
10.1016/0168-9002(94)90701-3
发表时间:
1994-07-15
影响因子:
1.4
作者:
GABLER, AR;DORING, W;ANTON, G
通讯作者:
ANTON, G
DOI:
10.1140/epja/i2006-09-015-4
发表时间:
2006
期刊:
The European Physical Journal A - Hadrons and Nuclei
影响因子:
--
作者:
W. Hillert
通讯作者:
W. Hillert
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
G. Suft;G. Anton;R. Bogendorfer;A. Ehmanns;A. Fösel;J. Hössl;H. Kalinowsky;C. Küppersbusch;D. Walther
通讯作者:
D. Walther
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
E. Aker;C. Amsler;I. Augustin;C. A. Baker;B. Barnett;C. Batty;R. Beckmann;P. Birien;J. Bistirlich;P. Blüm;R. Bossingham;H. Bossy;K. Braune;D. Bugg;M. Burchell;T. Case;S. Cierjacks;K. Crowe;K. Dederichs;M. Doser;W. Dünnweber;H. Emerich;D. Engelhardt;M. Faessler;C. Felix;G. Folger;J. Friedrich;R. Hackmann;R. P. Haddock;H. Hammer;F. Heinsius;N. Hessey;P. Illinger;D. Jamnik;H. Kalinowsky;B. Kämmle;T. Kiel;E. Klempt;H. Koch;C. Kolo;K. Konigsmann;F. Krennrich;M. Kunze;R. Landua;J. Lüdemann;H. Matthaey;M. Merkel;J. Merlo;C. Meyer;U. Meyer;L. Montanet;A. Noble;K. Peters;W. Rohrbach;A. Sanjari;E. Schäfer;B. Schmid;W. Schott;K. Sidiropoulos;S. Spanier;A. Staude;C. Strassburger;U. Strohbusch;M. Suffert;C. Sutton;D. Urner;C. Völcker;D. Walther;S. M. Walther;C. Weddigen;U. Wiedner;N. Winter;J. Zoll;C. Zupanc̆ic̆
通讯作者:
C. Zupanc̆ic̆
影响因子:
8.6
作者:
A. Bock;L. Sözüer;R. Gehring;M. Plückthun;S. Goertz;J. Didelez;G. Reicherz;W. Meyer;C. Bradtke;G. Anton;K. Helbing;J. Hey;M. Breuer;W. Beulertz;P. Hoffmann;H. Dutz
通讯作者:
H. Dutz