Single π<SUP>0</SUP> electro-production in the resonance region with CLAS

Kyungseon Joo (for the CLAS collaboration)

doi:10.1088/1674-1137/33/12/033

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1254-1256 DOI: 10.1088/1674-1137/33/12/033

Single π⁰ electro-production in the resonance region with CLAS

Kyungseon Joo (for the CLAS collaboration)

(University of Connecticut 2152 Hillside Road, Storrs, CT 06269, USA) (Universidad Técnica Federico Santa María, Valparaíso, Chile)

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Abstract：
We report the analysis status of single π⁰ electroproduction in the resonance region to study the electromagnetic excitation of the nucleon resonances. The study is aimed at understanding of the internal structure and dynamics of the nucleon. The experiment was performed using an unpolarized cryogenic hydrogen target and 2.0 and 5.8 GeV polarized electron beam during the e1e and e1-6 run periods with CLAS at Jefferson Lab. The new measurements will produce a data base with high statistics and large kinematic coverage for the hadronic invariant mass (W) up to 2.0 GeV in the momentum transfer (Q²) range of 0.3—6.0 GeV². Preliminary results will be presented and compared with the various model calculations.

References

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. Isgur N, Karl G. Phys. Rev. D, 1978, 18: 41872. Isgur N, Karl G. Phys. Rev. D, 1979, 19: 26533. Frolov V V et al. Phys. Rev. Lett., 1999, 82: 45-484. Joo K et al. Phys. Rev. Lett., 2002, 88: 1220015. Ungaro M et al. Phys. Rev. Lett., 2006, 97: 1120036. Park K et al. Phys. Rev. C, 2008, 77: 0152087. Egiyan H et al. Phys. Rev. C, 2006, 73: 0252038. Mecking B et al. Nucl. Inst. Meth. A, 2003, 503: 5139. Afansev A, Akushevich I, Burkert V D, Joo K. Phys. Rev.D, 2002, 66: 074004

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Kyungseon Joo (for the CLAS collaboration). Single π⁰ electro-production in the resonance region with CLAS[J]. Chinese Physics C, 2009, 33(12): 1254-1256. doi: 10.1088/1674-1137/33/12/033

Kyungseon Joo (for the CLAS collaboration). Single π⁰ electro-production in the resonance region with CLAS[J]. Chinese Physics C, 2009, 33(12): 1254-1256. doi: 10.1088/1674-1137/33/12/033 shu

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

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沈阳化工大学材料科学与工程学院沈阳 110142

Single π⁰ electro-production in the resonance region with CLAS

Kyungseon Joo (for the CLAS collaboration)

(University of Connecticut 2152 Hillside Road, Storrs, CT 06269, USA) (Universidad Técnica Federico Santa María, Valparaíso, Chile)

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

Abstract:

We report the analysis status of single π⁰ electroproduction in the resonance region to study the electromagnetic excitation of the nucleon resonances. The study is aimed at understanding of the internal structure and dynamics of the nucleon. The experiment was performed using an unpolarized cryogenic hydrogen target and 2.0 and 5.8 GeV polarized electron beam during the e1e and e1-6 run periods with CLAS at Jefferson Lab. The new measurements will produce a data base with high statistics and large kinematic coverage for the hadronic invariant mass (W) up to 2.0 GeV in the momentum transfer (Q²) range of 0.3—6.0 GeV². Preliminary results will be presented and compared with the various model calculations.