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E1D and E6A runs CLAS data

Spokesperson
M. Osipenko
Year
2005
Abstract
The inclusive electron scattering off the deuteron has been measured at Jefferson Lab with CLAS detector. The measurement covers the entire resonance region beginning from the quasi-elastic peak up to W ~ 2.7 GeV at four-momentum transfers Q2 from 0.4 to 6 (GeV/c)^2. These data are complementary to the previous measurement of the proton structure function F2 and cover a similar two-dimensional region of Q2 and x. Simultaneous determination of the deuteron F2 in a large x interval including quasi-elastic peak, for each fixed Q2, together with other world data permitted for the first time a direct evaluation of the structure function moments. Fitting the Q2 evolution of these moments with OPE based twist expansion we obtained a separation of the Leading Twist and Higher Twist terms. Observed Q2 behaviour of the higher twist contribution suggests a partial cancellation of twist-4 and twist-6 terms entering in the expansion with opposite signs. This cancellation found also in the proton moments is responsible for "duality" phenomenon in F2 structure function.
Publications
  1. M. Osipenko, G. Ricco, S. Simula, M. Battaglieri, M. Ripani, and CLAS Collaboration Measurement of the Deuteron Structure Function F2 in the Resonance Region and Evaluation of Its Moments // hep-ex/0506004
  2. M. Osipenko, G. Ricco, S. Simula, M. Battaglieri, M. Ripani, and CLAS Collaboration The deuteron structure function F2 with CLAS // CLAS-NOTE 2005-013 and hep-ex/0507098
Quantities
F2

Measurements

ID Quantity Beam Target Final state Q2min,
GeV2 		Q2max,
GeV2 		Wmin,
GeV 		Wmax,
GeV
E12M1 F2 e d inclusive 0.325 0.325 2.4609672852414657 2.5105719871317542
E12M2 F2 e d inclusive 0.375 0.375 2.2518757561716036 2.539072392309834
E12M3 F2 e d inclusive 0.425 0.425 1.9710645188596407 2.561700921415842
E12M4 F2 e d inclusive 0.475 0.475 1.8329473841602417 2.579746335603747
E12M5 F2 e d inclusive 0.525 0.525 1.8133164185259876 2.511021046267325
E12M6 F2 e d inclusive 0.575 0.575 1.8100701189139041 2.5633345681059003
E12M7 F2 e d inclusive 0.625 0.625 1.8032204283086255 2.573765167854834
E12M8 F2 e d inclusive 0.675 0.675 1.802549100533355 2.5459257396580206
E12M9 F2 e d inclusive 0.725 0.725 1.8039585699020853 2.5535133213703727
E12M10 F2 e d inclusive 0.775 0.775 1.8029479200888368 2.5278415059513017
E12M11 F2 e d inclusive 0.825 0.825 1.798159022470701 2.477418064208489
E12M12 F2 e d inclusive 0.875 0.875 1.7972131706448844 2.4578409444282427
E12M13 F2 e d inclusive 0.925 0.925 1.7936808665676263 2.4869975603907357
E12M14 F2 e d inclusive 0.975 0.975 1.789145223066329 2.490273165949187
E12M15 F2 e d inclusive 1.025 1.025 1.7894191945662279 2.4689543953810884
E12M16 F2 e d inclusive 1.075 1.075 1.7838187834266186 2.448804374372358
E12M17 F2 e d inclusive 1.125 1.125 1.7780970205662192 2.42962224662538
E12M18 F2 e d inclusive 1.175 1.175 1.7822886416390693 2.411248703603391
E12M19 F2 e d inclusive 1.225 1.225 1.7766575790450136 2.3758150271212686
E12M20 F2 e d inclusive 1.275 1.275 1.784246669005659 3.207349044543737
E12M21 F2 e d inclusive 1.325 1.325 1.7861380980865103 3.178580125917036
E12M22 F2 e d inclusive 1.375 1.375 1.7886858739642213 3.217433616962645
E12M23 F2 e d inclusive 1.425 1.425 1.7854451452311937 3.1264779795305384
E12M24 F2 e d inclusive 1.475 1.475 1.7889215886739613 3.1613931004329565
E12M25 F2 e d inclusive 1.525 1.525 1.793144931526811 3.1358477039329746
E12M26 F2 e d inclusive 1.575 1.575 1.7828916378849968 3.1116686191235843
E12M27 F2 e d inclusive 1.625 1.625 1.7798690017662775 3.142957499066559
E12M28 F2 e d inclusive 1.675 1.675 1.7848275060694845 3.173937946248944
E12M29 F2 e d inclusive 1.725 1.725 1.7792652915868046 3.148105924918071
E12M30 F2 e d inclusive 1.775 1.775 1.7851050800599968 3.1235345161754533
E12M31 F2 e d inclusive 1.825 1.825 1.785556683989541 3.1000797335868855
E12M32 F2 e d inclusive 1.875 1.875 1.786222840415762 3.126885686156826
E12M33 F2 e d inclusive 1.925 1.925 1.7871081266986433 3.153463783522614
E12M34 F2 e d inclusive 1.975 1.975 1.7031672814633882 3.128780978433026
E12M35 F2 e d inclusive 2.025 2.025 1.6507726720700313 3.154051153394267
E12M36 F2 e d inclusive 2.075 2.075 1.6427407214989986 3.1791204672756725
E12M37 F2 e d inclusive 2.125 2.125 1.634591278128075 3.203993634930393
E12M38 F2 e d inclusive 2.175 2.175 1.6263238433009686 3.1773320484683363
E12M39 F2 e d inclusive 2.225 2.225 1.622367167112732 3.2010382986907167
E12M40 F2 e d inclusive 2.275 2.275 1.6116741817516693 3.174566948733545
E12M41 F2 e d inclusive 2.325 2.325 1.612415271721129 3.197194093149956
E12M42 F2 e d inclusive 2.375 2.375 1.6112006702906483 3.1709215920786145
E12M43 F2 e d inclusive 2.425 2.425 1.5976383763891715 3.1456480594815326
E12M44 F2 e d inclusive 2.475 2.475 1.5991086233202594 3.121281245723853
E12M45 F2 e d inclusive 2.525 2.525 1.6039107631641214 3.097739546056726
E12M46 F2 e d inclusive 2.575 2.575 1.5980641603390984 3.1171057162825604
E12M47 F2 e d inclusive 2.625 2.625 1.5980584063106096 3.1363523076591857
E12M48 F2 e d inclusive 2.675 2.675 1.6015124429100247 3.1122177080487643
E12M49 F2 e d inclusive 2.725 2.725 1.6089252608154172 3.130684959955353
E12M50 F2 e d inclusive 2.775 2.775 1.5969197761138108 3.1066752451446704
E12M51 F2 e d inclusive 2.825 2.825 1.5914507389512489 3.0833871683237732
E12M52 F2 e d inclusive 2.875 2.875 1.6000717559754196 3.0607622060663866
E12M53 F2 e d inclusive 2.925 2.925 1.6022715675882555 3.0773381923944685
E12M54 F2 e d inclusive 2.975 2.975 1.5896284221694794 3.0938253697736298
E12M55 F2 e d inclusive 3.025 3.025 1.5882204352304767 3.0328138463980534
E12M56 F2 e d inclusive 3.075 3.075 1.6031891498774173 3.011386690942364
E12M57 F2 e d inclusive 3.125 3.125 1.5941858412527559 3.063613815590408
E12M58 F2 e d inclusive 3.175 3.175 1.5767124236692918 3.041209415877293
E12M59 F2 e d inclusive 3.225 3.225 1.5975350548509353 3.019346496751481
E12M60 F2 e d inclusive 3.275 3.275 1.5928416497504885 3.0336862351031284
E12M61 F2 e d inclusive 3.325 3.325 1.6069945803134613 3.04795850999697
E12M62 F2 e d inclusive 3.375 3.375 1.6026116273621875 3.0621642647434353
E12M63 F2 e d inclusive 3.425 3.425 1.5834917866788776 3.0394820653373116
E12M64 F2 e d inclusive 3.475 3.475 1.6092371689988632 3.0173169473932027
E12M65 F2 e d inclusive 3.525 3.525 1.599799977435632 2.995632750426186
E12M66 F2 e d inclusive 3.575 3.575 1.6173500091020545 2.9743963160147016
E12M67 F2 e d inclusive 3.625 3.625 1.5912783119301552 2.9868991355529833
E12M68 F2 e d inclusive 3.675 3.675 1.609530182097435 2.96570747219171
E12M69 F2 e d inclusive 3.725 3.725 1.6056059867391799 2.944918071737226
E12M70 F2 e d inclusive 3.775 3.775 1.6076300807965314 2.9245043151423684
E12M71 F2 e d inclusive 3.825 3.825 1.6037801934018583 2.935883445172633
E12M72 F2 e d inclusive 3.875 3.875 1.593775428773758 2.9154873885550576
E12M73 F2 e d inclusive 3.925 3.925 1.5960525595608004 2.895430427539216
E12M74 F2 e d inclusive 3.975 3.975 1.605028751549318 2.9061141484096367
E12M75 F2 e d inclusive 4.025 4.025 1.6013340282007964 2.886064331299015
E12M76 F2 e d inclusive 4.075 4.075 1.5909792189108678 2.86632132075379
E12M77 F2 e d inclusive 4.125 4.125 1.5871698133305248 2.8468658346682822
E12M78 F2 e d inclusive 4.175 4.175 1.5901983522803906 2.856613677330147
E12M79 F2 e d inclusive 4.225 4.225 1.6149146590073695 2.8371465488442005
E12M80 F2 e d inclusive 4.275 4.275 1.6115769999863883 2.8179403006957062
E12M81 F2 e d inclusive 4.325 4.325 1.6008173235696708 2.798978831116694
E12M82 F2 e d inclusive 4.375 4.375 1.5825390391230238 2.8078786649247283
E12M83 F2 e d inclusive 4.425 4.425 1.5863547946778995 2.788890305366402
E12M84 F2 e d inclusive 4.475 4.475 1.5676897202693618 2.7701244081425647
E12M85 F2 e d inclusive 4.525 4.525 1.5947839295422812 2.7515673547659043
E12M86 F2 e d inclusive 4.575 4.575 1.6156294516439746 2.733206334313669
E12M87 F2 e d inclusive 4.625 4.625 1.6125565681054577 2.7410971363403283
E12M88 F2 e d inclusive 4.675 4.675 1.6179157421249524 2.697024803678878
E12M89 F2 e d inclusive 4.725 4.725 1.614937387533174 2.704461890501986
E12M90 F2 e d inclusive 4.775 4.775 1.6294952800057785 2.686400597084203
E12M91 F2 e d inclusive 4.825 4.825 1.59152621409185 2.6684961034136827
E12M92 F2 e d inclusive 4.875 4.875 1.614914947974131 2.6507385437469764
E12M93 F2 e d inclusive 4.925 4.925 1.5939948705262195 2.6331185609660843
E12M94 F2 e d inclusive 4.975 4.975 1.6183702095238977 2.615627268452807
E12M95 F2 e d inclusive 5.025 5.025 1.587759417514247 2.6220047374423845
E12M96 F2 e d inclusive 5.075 5.075 1.6127788964489462 2.6044394076407036
E12M97 F2 e d inclusive 5.125 5.125 1.6004015052755403 2.5869903357726596
E12M98 F2 e d inclusive 5.175 5.175 1.607168131399991 2.5696496715101196
E12M99 F2 e d inclusive 5.225 5.225 1.614236408890094 2.5524099194656786
E12M100 F2 e d inclusive 5.275 5.275 1.601537709935172 2.5352639134648984
Created in SINP MSU, CLAS Collaboration