Difference between revisions of "Delta D over D"

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[[Introduction]]<br>
 
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[[Theory]] <br>
 
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[[CLAS apparatus]]<br>
 
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[[Analysis]]<br>
 
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[[Software]]<br>
 
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[[References]]<br>
 
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[[DeltaDoverD_Progress]]<br>
 
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[[TamarD_Logbook]]<br>
 
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[[GEANT4 Installation Instructions]]<br>
 
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[[Ticket To Ride]]<br>
 
  
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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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{|border="2" colspan = "20"
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[[Hall_B#Physics]]
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!Beam Energy||Torus Current||Begin Run||End Run ||file used || events remaining after cuts || || # trig(<math>10^6</math>) || expected # evts(<math>10^6</math>)
 
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| || || || || || first(%) || second(%)|| ||
 
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|1606||1500||25488||25559||dst25504_02.B00||96.8||99||60||3.2
 
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|-
 
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|1606||1500||25669||25732||dst25669_02.B00||98.1||98.9||226||10
 
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|-
 
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|1606||1500||25742||26221||dst25754_02.B00||13.4||22.8||3154||13.3
 
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|}
 
  
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Hermes Data 1999
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[[SIDIS_PionAsym_EG2000]]
  
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0.033 -0.1236 0.039
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[[Extracting_DeltaDoverD_from_PionAsym]]
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0.048 0.0588 0.0543
 
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0.065 -0.1336 0.0362
 
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0.087 -0.2572 0.0495
 
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0.0118 -0.4876 0.0841
 
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0.0166 -0.0918 0.0675
 
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0.239 -0.5218 0.0822
 
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0.339 -0.2799 0.1694
 
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0.447 -0.8133 0.2454
 
  
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[[TF_InclusiveDeltaDoverD]]
  
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0.033 -0.1236 0.159
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;References
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0.048 0.0588 0.1452
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0.065 -0.1336 0.1307
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;<math>\frac{\Delta d}{d}</math> from SIDIS
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0.087 -0.2572 0.1303
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#HERMES 2005 result with tables of A1 inclusive and '''SIDIS''' <math>(\Delta d/d)</math> [[File:PRD712005p012003.pdf]]
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0.0118 -0.4876 0.1185
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0.0166 -0.0918 0.1337
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;<math>\frac{\Delta d}{d}</math> using Inclusive
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0.239 -0.5218 0.1646
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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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0.339 -0.2799 0.1988
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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>
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0.447 -0.8133 0.4074
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;SIDIS Cross-sections
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[[File:Asauryan_nucle-ex1103.1649.pdf]]
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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

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