Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N1 E E Pi X On A Transversely Polarized 3he Target
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Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N1 E E Pi X On A Transversely Polarized 3he Target
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N1 E E Pi X On A Transversely Polarized 3he 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 2010 with categories.
The experiment E06010 measured the target single spin asymmetry (SSA) in the semiinclusive deep inelastic (SIDIS) n1!e, e'[pi]- )X reaction with a transversely polarized 3He target as an e ective neutron target. This is the very rst independent measurement of the neutron SSA, following the measurements at HERMES and COMPASS on the proton and the deuteron. The experiment acquired data in Hall A at Je erson Laboratory with a continuous electron beam of energy 5.9 GeV, probing the valence quark region, with x = 0.13 2!0.41, at Q2 = 1.31 2!3.1 GeV2. The two contributing mechanisms to the measured asymmetry, viz, the Collins effect and the Sivers effect can be realized through the variation of the asymmetry as a function of the Collins and Sivers angles. The neutron Collins and Sivers moments, associated with the azimuthal angular modulations, are extracted from the measured asymmetry for the very first time and are presented in this thesis. The kinematics of this experiment is comparable to the HERMES proton measurement. However, the COMPASS measurements on deuteron and proton are in the low-x region. The results of this experiment are crucial as the first step toward the extraction of quark transversity and Sivers distribution functions in SIDIS. With the existing results on proton and deuteron, these new results on neutron will provide powerful constraints on the transversity and Sivers distributions of both the u and d-quarks in the valence region.
Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N Up Arrow E Pi X On A Transversely Polarized 3he Target
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Author : Chiranjib Dutta
language : en
Publisher:
Release Date : 2010
Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N Up Arrow E Pi X On A Transversely Polarized 3he Target written by Chiranjib Dutta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N U2191 E E X On A Transversely Polarized 3he Target
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Single Target Spin Asymmetries In The Electroproduction Of Negative Pions In The Semi Inclusive Deep Inelastic Reaction N U2191 E E X On A Transversely Polarized 3he 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 2010 with categories.
The experiment E06010 measured the target single spin asymmetry (SSA) in the semiinclusive deep inelastic (SIDIS) n↑(e,e'?-)X reaction with a transversely polarized 3He target as an e ective neutron target. This is the very rst independent measurement of the neutron SSA, following the measurements at HERMES and COMPASS on the proton and the deuteron. The experiment acquired data in Hall A at Je erson Laboratory with a continuous electron beam of energy 5.9 GeV, probing the valence quark region, with x = 0.13 → 0.41, at Q2 = 1.31 → 3.1 GeV2. The two contributing mechanisms to the measured asymmetry, viz, the Collins effect and the Sivers effect can be realized through the variation of the asymmetry as a function of the Collins and Sivers angles. The neutron Collins and Sivers moments, associated with the azimuthal angular modulations, are extracted from the measured asymmetry for the very first time and are presented in this thesis. The kinematics of this experiment is comparable to the HERMES proton measurement. However, the COMPASS measurements on deuteron and proton are in the low-x region. The results of this experiment are crucial as the first step toward the extraction of quark transversity and Sivers distribution functions in SIDIS. With the existing results on proton and deuteron, these new results on neutron will provide powerful constraints on the transversity and Sivers distributions of both the u and d-quarks in the valence region.
Single Spin Asymmetries In Charged Pion Production From Semi Inclusive Deep Inelastic Scattering On A Transversely Polarized 3 He Target
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Author :
language : en
Publisher:
Release Date : 2011
Single Spin Asymmetries In Charged Pion Production From Semi Inclusive Deep Inelastic Scattering On A Transversely Polarized 3 He 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 2011 with categories.
We report the first measurement of target single spin asymmetries in the semi-inclusive $^3{He}(e, e'\pi^\pm)X$ reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.14 $
Beam Target Double Spin Asymmetry Alt In Charged Pion Production From Deep Inelastic Scattering On A Transversely Polarized 3he Target At 1 4 Q2 2 7 Gev2
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Author :
language : en
Publisher:
Release Date : 2012
Beam Target Double Spin Asymmetry Alt In Charged Pion Production From Deep Inelastic Scattering On A Transversely Polarized 3he Target At 1 4 Q2 2 7 Gev2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
We report the first measurement of the double-spin asymmetry ALT for charged pion electroproduction in semi-inclusive deep inelastic electron scattering on a transversely polarized 3He target. The kinematics focused on the valence quark region, 0.16
Measurement Of Single And Double Spin Asymmetries In Deep Inelastic Pion Electroproduction With A Longitudinally Polarized Target
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Single And Double Spin Asymmetries In Deep Inelastic Pion Electroproduction With A Longitudinally Polarized 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 2010 with categories.
We report the first measurement of the transverse momentum dependence of double spin asymmetries in semi-inclusive production of pions in deep inelastic scattering off the longitudinally polarized proton. Data have been obtained using a polarized electron beam of 5.7 GeV with the CLAS detector at the Thomas Jefferson National Accelerator Facility (JLab). A significant non-zero $\sin2\phi$ single spin asymmetry was also observed for the first time indicating strong spin-orbit correlations for transversely polarized quarks in the longitudinally polarized proton. The azimuthal modulations of single spin asymmetries have been measured over a wide kinematic range.
Measurement Of Single Spin Asymmetries In Semi Inclusive Deep Inelastic Scattering Reaction N1 E E Pi Sup X At Jefferson Lab
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of Single Spin Asymmetries In Semi Inclusive Deep Inelastic Scattering Reaction N1 E E Pi Sup X At Jefferson Lab written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
What constitutes the spin of the nucleon? The answer to this question is still not completely understood. Although we know the longitudinal quark spin content very well, the data on the transverse quark spin content of the nucleon is still very sparse. Semi-inclusive Deep Inelastic Scattering (SIDIS) using transversely polarized targets provide crucial information on this aspect. The data that is currently available was taken with proton and deuteron targets. The E06-010 experiment was performed at Jefferson Lab in Hall-A to measure the single spin asymmetries in the SIDIS reaction n1!e, e'[pi]{sup ±}/K{sup ±})X using transversely polarized 3He target. The experiment used the continuous electron beam provided by the CEBAF accelerator with a beam energy of 5.9 GeV. Hadrons were detected in a high-resolution spectrometer in coincidence with the scattered electrons detected by the BigBite spectrometer. The kinematic coverage focuses on the valence quark region, x = 0.19 to 0.34, at Q2 = 1.77 to 2.73 (GeV/c)2. This is the first measurement on a neutron target. The data from this experiment, when combined with the world data on the proton and the deuteron, will provide constraints on the transversity and Sivers distribution functions on both the u and d-quarks in the valence region. In this work we report on the single spin asymmetries in the SIDIS n1!e, e'[pi])X reaction.
Measurement Of Pretzelosity Asymmetry Of Charged Pion Production In Semi Inclusive Deep Inelastic Scattering On A Polarized Math Mmultiscripts Mi Mathvariant
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Author :
language : en
Publisher:
Release Date : 2014
Measurement Of Pretzelosity Asymmetry Of Charged Pion Production In Semi Inclusive Deep Inelastic Scattering On A Polarized Math Mmultiscripts Mi Mathvariant 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.
An experiment to measure single-spin asymmetries in semi-inclusive production of charged pions in deep-inelastic scattering on a transversely polarized 3He target was performed at Jefferson Lab in the kinematic region of 0.16
Beam Target Double Spin Asymmetry A Sub Lt Sub In Charged Pion Production From Deep Inelastic Scattering On A Transversely Polarized Sup 3 Sup He Target At 1 4 Q Sup 2 Sup 2 7 Gev Sup 2 Sup
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Author :
language : en
Publisher:
Release Date : 2012
Beam Target Double Spin Asymmetry A Sub Lt Sub In Charged Pion Production From Deep Inelastic Scattering On A Transversely Polarized Sup 3 Sup He Target At 1 4 Q Sup 2 Sup 2 7 Gev Sup 2 Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
We report the first measurement of the double-spin asymmetry ALT for charged pion electroproduction in semi-inclusive deep inelastic electron scattering on a transversely polarized 3He target. The kinematics focused on the valence quark region, 0.16 x 0.35 with 1.4 Qsup2/sup 2.7 GeVsup2/sup. The corresponding neutron AsubLT/sub asymmetries were extracted from the measured sup3/supHe asymmetries and proton/sup3/supHe cross section ratios using the effective polarization approximation. These new data probe the transverse momentum dependent parton distribution function gsub 1T/subsupq/sup and therefore provide access to quark spin-orbit correlations. Our results indicate a positive azimuthal asymmetry for?sup-
Recent Results Of Target Single Spin Asymmetry Experiments At Jefferson Lab
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language : en
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Release Date : 2013
Recent Results Of Target Single Spin Asymmetry Experiments At Jefferson Lab written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
We report recent results from Jefferson Lab Hall A "Neutron Transversity" experiment (E06-010). Transversely polarized target single-spin asymmetry AUT and beam-target double-spin asymmetry A{sub LT} have been measured in semi-inclusive deep-inelastic scattering (SIDIS) reactions on a polarized neutron (3He) target. Collins-type and Sivers-type asymmetries have been extracted from A{sub UT} for charged pion SIDIS productions, which are sensitive to quark transversity and Sivers distributions, correspondingly. Double spin asymmetry A{sub LT} is sensitive to a specific quark transverse momentum dependent parton distribution (TMD), the so-called "transverse helicity" (g{sub 1T}) distributions. In addition, target single-spin asymmetries A{sub y} in inclusive electron scattering on a transversely polarized 3He target in quasi-elastic and deep inelastic kinematics were also measured in Hall A.