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Hard Exclusive $\rho^{0}$-Meson Production at COMPASS
New results for the transverse target spin azimuthal asymmetry A$^{sin (\phi - \phi_{S})}_{UT}$ for hard exclusive $\rho^{0}$-meson production on a transversely polarised $^{6}$LiD and NH$_{3}$ target will be presented. The measurement was performed with the COMPASS detector using the 160 GeV$/c$ mu...
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| Lenguaje: | eng |
| Publicado: |
2012
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| Acceso en línea: | http://cds.cern.ch/record/1494086 |
| Sumario: | New results for the transverse target spin azimuthal asymmetry A$^{sin (\phi - \phi_{S})}_{UT}$ for hard exclusive $\rho^{0}$-meson production on a transversely polarised $^{6}$LiD and NH$_{3}$ target will be presented. The measurement was performed with the COMPASS detector using the 160 GeV$/c$ muon beam of the SPS at CERN. The asymmetry is sensitive to the nucleon helicity-flip generalised parton distribution $E$, which is related to the orbital angular momentum of quarks in the nucleon. |
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