Latest results from GRAAL collaboration

V. Bellini; J.P. Bouquet; L. Casano; A. D'Angelo; J.P. Didelez

doi:10.1088/1674-1137/33/12/032

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1249-1253 DOI: 10.1088/1674-1137/33/12/032

Latest results from GRAAL collaboration

Abstract
HTML
Reference
Related

PDF

Abstract：
The GRAAL experimental set-up consists of a polarized and tagged photon beam that covers an energy range from a minimum of 600 MeV up to a maximum of
1500 MeV, of a liquid Hydrogen or Deuterium target and of the 4π Lagrange detector optimized for photon detection. It allows the study of pseudo-scalar and vector meson photoproduction on the nucleon in the energy range corresponding to the second and the third resonance regions. In the following, the Σ beam asymmetries in η and π⁰ photoproduction on quasi-free nucleon are shown. Also single and double polarization observables in K+Λ photoproduction on free proton are shown; they are important to confirm the role of new or poorly known resonances in the 1900 MeV mass region.

References

[1]

. Babusci D et al. Il Nuovo Cimento A, 1990, 103: 1555-15762. Bartalini O et al. Eur. Phys. J. A, 2005, 26: 399-4193. Fantini A et al. Phys. Rev. C, 2008, 78: 015230-1-015230-124. di Salvo R et al. submitted Eur. Phys. J. A. the paper havebeen accepted5. Lleres A et al. Eur. Phys. J. A, 2007, 31: 79-936. Lleres A et al. Eur. Phys. J. A, 2009, 39: 149-1617. Bradford R K et al. Phys. Rev. C, 2007, 75: 035205-1-035205-25

Access

Get Citation

V. Bellini, J.P. Bouquet, L. Casano, A. D'Angelo and J.P. Didelez. Latest results from GRAAL collaboration[J]. Chinese Physics C, 2009, 33(12): 1249-1253. doi: 10.1088/1674-1137/33/12/032

V. Bellini, J.P. Bouquet, L. Casano, A. D'Angelo and J.P. Didelez. Latest results from GRAAL collaboration[J]. Chinese Physics C, 2009, 33(12): 1249-1253. doi: 10.1088/1674-1137/33/12/032 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-08-07
Revised: 1900-01-01

Article Metric

Article Views(3495)
PDF Downloads(558)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Latest results from GRAAL collaboration

Received Date: 2009-08-07
Accepted Date: 1900-01-01
Available Online: 2009-12-05

Abstract: The GRAAL experimental set-up consists of a polarized and tagged photon beam that covers an energy range from a minimum of 600 MeV up to a maximum of
1500 MeV, of a liquid Hydrogen or Deuterium target and of the 4π Lagrange detector optimized for photon detection. It allows the study of pseudo-scalar and vector meson photoproduction on the nucleon in the energy range corresponding to the second and the third resonance regions. In the following, the Σ beam asymmetries in η and π⁰ photoproduction on quasi-free nucleon are shown. Also single and double polarization observables in K+Λ photoproduction on free proton are shown; they are important to confirm the role of new or poorly known resonances in the 1900 MeV mass region.