dorsal/arxiv
View SchemaExclusive Hadronic Reactions at High $Q^2$ ($90\degree$) and Polarization Phenomena, An Experimental Proposal}
| Authors | F. Myhrer |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9303020 |
| URL | https://arxiv.org/abs/nucl-th/9303020 |
Abstract
Arguments are presented for the expected behaviour of $\piNpiN$ scattering and the $\pbarppipi$ reaction at high energy and large scattering angles. % The annihilation reaction has close to maximal asymmetry ($\approx$ 1) for $p_{lab} \siml $ 2.2 GeV/c. % As will be presented for fixed (90$\degree$) angle this large asymmetry will not become zero but will start to oscillate with energy at higher energies and large $Q^2$ when perturbative QCD becomes applicable. This is due to the energy dependence of a QCD phase difference between the independent quark-quark scattering (Landshoff) and short-distance processes at high but not asymptotic energies. % A consequence of the existence the Landshoff process is that even if helicity is conserved at the quark level ($m_{q}$ = 0 MeV), helicity does not have to be conserved on the hadronic level. % We will discuss the implications for spin observables in $pp$ elastic scattering and argue that
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"abstract": "Arguments are presented for the expected behaviour of $\\piNpiN$ scattering\nand the $\\pbarppipi$ reaction at high energy and large scattering angles. % The\nannihilation reaction has close to maximal asymmetry ($\\approx$ 1) for $p_{lab}\n\\siml $ 2.2 GeV/c. % As will be presented for fixed (90$\\degree$) angle this\nlarge asymmetry will not become zero but will start to oscillate with energy at\nhigher energies and large $Q^2$ when perturbative QCD becomes applicable. This\nis due to the energy dependence of a QCD phase difference between the\nindependent quark-quark scattering (Landshoff) and short-distance processes at\nhigh but not asymptotic energies. % A consequence of the existence the\nLandshoff process is that even if helicity is conserved at the quark level\n($m_{q}$ = 0 MeV), helicity does not have to be conserved on the hadronic\nlevel. % We will discuss the implications for spin observables in $pp$ elastic\nscattering and argue that",
"arxiv_id": "nucl-th/9303020",
"authors": [
"F. Myhrer"
],
"categories": [
"nucl-th"
],
"title": "Exclusive Hadronic Reactions at High $Q^2$ ($90\\degree$) and Polarization Phenomena, An Experimental Proposal}",
"url": "https://arxiv.org/abs/nucl-th/9303020"
},
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