Difference between revisions of "Delta D over D"

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[[Introduction]]<br>
 
[[Theory]] <br>
 
[[CLAS apparatus]]<br>
 
[[Analysis]]<br>
 
[[Software]]<br>
 
[[References]]<br>
 
[[DeltaDoverD_Progress]]<br>
 
[[TamarD_Logbook]]<br>
 
[[GEANT4 Installation Instructions]]<br>
 
[[Ticket To Ride]]<br>
 
  
Hermes Data 1999
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"At large x the perturbative QCD analysis predicts “helicity retention” – i.e., the helicity of a valence quark with x ∼ 1 will matches that of the parent nucleon." Helicity Retention https://arxiv.org/abs/hep-ph/9401328 Nucl.Phys.B441:197-214,1995
  
{|
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[[Hall_B#Physics]]
|-
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|Xbj || Delta d/d || Stat Err || Sys Error
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[[SIDIS_PionAsym_EG2000]]
|-
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|0.033|| -0.1236 ||0.159 || 0.039
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[[Extracting_DeltaDoverD_from_PionAsym]]
|-
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|0.048|| 0.0588||  0.1452|| 0.0543
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[[TF_InclusiveDeltaDoverD]]
|-
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|0.065 ||-0.1336 || 0.1307 ||0.0362
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;References
|-
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|0.087 ||-0.2572 || 0.1303 ||0.0495
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;<math>\frac{\Delta d}{d}</math> from SIDIS
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#HERMES 2005 result with tables of A1 inclusive and '''SIDIS''' <math>(\Delta d/d)</math> [[File:PRD712005p012003.pdf]]
|0.0118 ||-0.4876|| 0.1185 || 0.0841
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|-
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;<math>\frac{\Delta d}{d}</math> using Inclusive
|0.0166|| -0.0918 ||0.1337 ||0.0675
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#Hall A 2004 results for A1n and <math>(\Delta d/d)</math> usinb Inclusive Scattering [[File:PRLett92_2004_pg012004.pdf]]
|-
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#Hall B 2007 results using Inclusive scattering Phys. Lett. B 641 (2006) 11  [[File:PLB_vol641_2006_pg11.pdf]] <math>\left (\frac{\Delta d}{d} \approx \frac{8g_1^d/(1-1.5 \omega_D) - 5g_1^p}{8F_1^d-5F_1^p}\right )</math>
|0.239 ||-0.5218 || 0.1646  ||0.0822
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|-
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;SIDIS Cross-sections
|0.339 ||-0.2799|| 0.1988 || 0.1694
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|-
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[[File:Asauryan_nucle-ex1103.1649.pdf]]
|0.447 ||-0.8133 || 0.4074 ||0.2454
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|}
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[[SIDIS_CLASNOTE_2013]]
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[[Hall_B#Physics]]

Latest revision as of 19:35, 22 September 2018

"At large x the perturbative QCD analysis predicts “helicity retention” – i.e., the helicity of a valence quark with x ∼ 1 will matches that of the parent nucleon." Helicity Retention https://arxiv.org/abs/hep-ph/9401328 Nucl.Phys.B441:197-214,1995

Hall_B#Physics

SIDIS_PionAsym_EG2000

Extracting_DeltaDoverD_from_PionAsym

TF_InclusiveDeltaDoverD

References
[math]\frac{\Delta d}{d}[/math] from SIDIS
  1. HERMES 2005 result with tables of A1 inclusive and SIDIS [math](\Delta d/d)[/math] File:PRD712005p012003.pdf
[math]\frac{\Delta d}{d}[/math] using Inclusive
  1. Hall A 2004 results for A1n and [math](\Delta d/d)[/math] usinb Inclusive Scattering File:PRLett92 2004 pg012004.pdf
  2. Hall B 2007 results using Inclusive scattering Phys. Lett. B 641 (2006) 11 File:PLB vol641 2006 pg11.pdf [math]\left (\frac{\Delta d}{d} \approx \frac{8g_1^d/(1-1.5 \omega_D) - 5g_1^p}{8F_1^d-5F_1^p}\right )[/math]
SIDIS Cross-sections

File:Asauryan nucle-ex1103.1649.pdf

SIDIS_CLASNOTE_2013

Hall_B#Physics