Measurement Of The Target Normal Single Spin Asymmetry In Quasielastic Scattering From The Reaction Math Display
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Measurement Of The Target Normal Single Spin Asymmetry In Quasielastic Scattering From The Reaction Math Display
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Author :
language : en
Publisher:
Release Date : 2015
Measurement Of The Target Normal Single Spin Asymmetry In Quasielastic Scattering From The Reaction Math Display written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We report the first measurement of the target single-spin asymmetry, Ay, in quasi-elastic scattering from the inclusive reaction 3He1!(e, e') on a 3He gas target polarized normal to the lepton scattering plane. Assuming time-reversal invariance, this asymmetry is strictly zero for one-photon exchange. A non-zero Ay can arise from the interference between the one- and two-photon exchange processes which is sensitive to the details of the sub-structure of the nucleon. An experiment recently completed at Jefferson Lab yielded asymmetries with high statistical precision at Q2= 0.13, 0.46 and 0.97 GeV2. These measurements demonstrate, for the first time, that the 3He asymmetry is clearly non-zero and negative with a statistical significance of (8-10)[sigma]. Using measured proton-to-3He cross-section ratios and the effective polarization approximation, neutron asymmetries of -(1-3)% were obtained. The neutron asymmetry at high Q2 is related to moments of the Generalized Parton Distributions (GPDs). Our measured neutron asymmetry at Q2=0.97 GeV2 agrees well with a prediction based on two-photon exchange using a GPD model and in addition provides a new independent constraint on these distributions.
Nuclear Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1968-07
Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968-07 with Nuclear energy categories.
Measurement Of The Target Normal Single Spin Asymmetry In Quasielastic Scattering From The Reaction He3 U2191 E E
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Author :
language : en
Publisher:
Release Date : 2015
Measurement Of The Target Normal Single Spin Asymmetry In Quasielastic Scattering From The Reaction He3 U2191 E E written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We report the first measurement of the target single-spin asymmetry, Ay, in quasi-elastic scattering from the inclusive reaction 3He↑ (e,e') on a 3He gas target polarized normal to the lepton scattering plane. Assuming time-reversal invariance, this asymmetry is strictly zero for one-photon exchange. A non-zero Ay can arise from the interference between the one- and two-photon exchange processes which is sensitive to the details of the sub-structure of the nucleon. An experiment recently completed at Jefferson Lab yielded asymmetries with high statistical precision at Q2= 0.13, 0.46 and 0.97 GeV2. These measurements demonstrate, for the first time, that the 3He asymmetry is clearly non-zero and negative with a statistical significance of (8-10)?. Using measured proton-to-3He cross-section ratios and the effective polarization approximation, neutron asymmetries of -(1-3)% were obtained. The neutron asymmetry at high Q2 is related to moments of the Generalized Parton Distributions (GPDs). Our measured neutron asymmetry at Q2=0.97 GeV2 agrees well with a prediction based on two-photon exchange using a GPD model and in addition provides a new independent constraint on these distributions.
Inis Atomindex
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Author :
language : en
Publisher:
Release Date : 1979
Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Nuclear energy categories.
Physics Briefs
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language : en
Publisher:
Release Date : 1992
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Physics categories.
High Energy Physics Index
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Author :
language : en
Publisher:
Release Date : 1990
High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Nuclear physics categories.
Chemical Abstracts
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language : en
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Release Date : 2002
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.
Measurement Of The Target Normal Single Spin Asymmetry In Deep Inelastic Scattering From The Reaction 3he Uparrow E E X
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Author :
language : en
Publisher:
Release Date : 2014
Measurement Of The Target Normal Single Spin Asymmetry In Deep Inelastic Scattering From The Reaction 3he Uparrow E E X written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
We report the first measurement of the target single-spin asymmetry in deep-inelastic scattering from the inclusive reaction 3He{uparrow}(e, e')X on a 3He gas target polarized normal to the lepton plane. Assuming time-reversal invariance, this asymmetry is strictly zero in the Born approximation. The experiment, conducted at Jefferson Lab using a 5.89 GeV electron beam, covers a range of 1.7W
Measurement Of The Target Normal Single Spin Asymmetry A Superscript N Over Subscript Y In The Deep Inelastic Region From The Reaction 3he Up Arrow E E
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Author : Joseph M. Katich
language : en
Publisher:
Release Date : 2011
Measurement Of The Target Normal Single Spin Asymmetry A Superscript N Over Subscript Y In The Deep Inelastic Region From The Reaction 3he Up Arrow E E written by Joseph M. Katich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Electrons categories.
Single And Double Spin Asymmetries For Deeply Virtual Compton Scattering Measured With Clas And A Longitudinally Polarized Proton Target
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Author :
language : en
Publisher:
Release Date : 2015
Single And Double Spin Asymmetries For Deeply Virtual Compton Scattering Measured With Clas And A Longitudinally Polarized Proton Target written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Single-beam, single-target, and double-spin asymmetries for hard exclusive photon production on the proton e→p→e'p'[gamma] are presented. The data were taken at Jefferson Lab using the CLAS detector and a longitudinally polarized 14NH3 target. The three asymmetries were measured in 165 4-dimensional kinematic bins, covering the widest kinematic range ever explored simultaneously for beam and target-polarization observables in the valence quark region. The kinematic dependences of the obtained asymmetries are discussed and compared to the predictions of models of Generalized Parton Distributions. As a result, the measurement of three DVCS spin observables at the same kinematic points allows a quasi-model-independent extraction of the imaginary parts of the H and H~ Compton Form Factors, which give insight into the electric and axial charge distributions of valence quarks in the proton.