Jin Huang, MIT. for the Hall A SoLID SIDIS collaboration
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1 Jin Huang, MIT for te Hall A SoLID SIDIS collaboration
2 E (PAC35: Transversely pol. 3 He, Collins, Sivers, Pretzelosity E (PAC37: Longitudinally pol. 3 He, Worm-gear TMDs PR (PAC38: Transversely pol. Proton ANL, Peking U., CalState-LA, CIAE, W&M, Duke, FIU, Hampton, Huangsan U., Huazong U.S.T., IMP CAS, Cagliari U. and INFN, INFN-Catania, INFN-Bari and U. of Bari, INFN-Frascati, INFN-Pavia, Torino U. and INFN, JLab, JSI (Slovenia, Lanzou U, LBNL, Longwood U, LANL, MIT, Miss. State, New Mexico, ODU, Penn State at Berks, Rutgers, Seoul Nat. U., St. Mary s, Syracuse, Sandong U, Tel aviv, Temple, Tsingua U, UConn, Glasgow, UIUC, Kentucky, Maryland, UMass, New Hampsire, USTC, UVa and te Hall A Collaboration Strong teory support, Over 180 collaborators, 50 institutions, 8 countries, strong overlap wit PVDIS Collaboration Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 2
3 TMD PDFs link Intrinsic motion of partons Parton spin Spin of te nucleon Multi-Dimension structure Probes orbital motion of quarks in DIS Nucleon -> Plate Transverse motion preserved Imaging te dynamics A new pase of study, fast developing field Great advance in teories (factorization, models, Lattice... Not sys. studied until recent years Semi-Inclusive DIS (SIDIS: HERMES, COMPASS, Jlab-6GeV,... p-p(p_bar process : FNAL, BNL,... Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 3
4 Nucleon Polarization Nucleon Spin Quark Spin Unpolarized (U Quark polarization Longitudinally Polarized (L Transversely Polarized (T U f 1 = 1 = Boer-Mulders L g 1 = Helicity 1L = Long-Transversity T f 1T = Sivers g 1T = Trans-Helicity 1 = 1T = Transversity Pretzelosity Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 4
5 Nucleon Polarization Nucleon Spin Quark Spin Unpolarized (U Quark polarization Longitudinally Polarized (L Transversely Polarized (T U f 1 = 1 = Boer-Mulders L g 1 = Helicity 1L = Long-Transversity T f 1T = Sivers g 1T = Trans-Helicity 1 = 1T = Transversity Pretzelosity Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 5
6 Access TMDs troug Hard Processes lepton EIC lepton proton FNAL BNL JPARC lepton proton SIDIS pion proton Drell-Yan antilepton electron pion Partonic scattering amplitude Fragmentation amplitude Distribution amplitude positron pion e e + to pions 1 (SIDIS 1 (DY Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 6
7 Gold mine for TMDs Access all eigt leading-twist TMDs troug spin-comb. & azimutal-modulations Jin Huang Hall C Summer Worksop 7
8 f 1 = Boer-Mulder 1 = Worm Gear Helicity Worm Gear 1L = g 1 = g 1T = Transversity 1T = Sivers f 1T = Pretzelosity 1T = d dxdyd dzd dp { F UU, T cos(2 F S S S S L L T T [ sin(2 F [ e [ e 2 1 F 2 1 [ sin( F sin( ( F S 2 cos(2 UU sin(3 F S S... sin(2 UL...]...] cos( F S LL 2 xyq sin( S UT S 2 sin( S UT... sin(3 S UT 2 y 2(1 cos( S LT...]}...] S L, S T : Target Polarization; e : Beam Polarization Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 8
9 f 1 = Boer-Mulder 1 = Worm Gear Helicity Worm Gear 1L = g 1 = g 1T = Transversity 1T = Sivers f 1T = Pretzelosity 1T = d dxdyd dzd dp { F UU, T cos(2 F S S S S L L T T [ sin(2 F [ e [ e 2 1 F 2 1 [ sin( F sin( ( F S 2 cos(2 UU sin(3 F S S... sin(2 UL...]...] cos( F S LL 2 xyq sin( S UT S 2 sin( S UT... sin(3 S UT 2 y 2(1 cos( S LT...]}...] S L, S T : Target Polarization; e : Beam Polarization Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 9
10 ~90% ~1.5% ~8% Hig N/cm 2 /s polarized luminosity Acieved performance: Hig polarization > 60% acieved Supports bot long. & trans. spin Frequent spin flip Advantages over pol. deuteron targets for n ~87% Effective pol. neutron target Acieved: stable pol. 60% wit spin flip Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 10
11 Existing target 3 cm NH 3 target, in 5T field Dynamic nuclear polarization/nmr polarimetry Optimized for long. setting New New magnet design (proposed 28ºopening (L/T AFP spin flip (R&D planned Beam line design beam line experience of Hall A g2p/gep-ii Simulated in GEANT 100nA beam, /cm 2 /s Beamline simulation PR Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 11
12 Hig Luminosity Large acceptance: enable 4D-mapping Full azimutal angular coverage: small systematics Largely sare ardware wit PVDIS 12º GEM: ig rate tracking LC: In field calorimeter 22º 13º 6.6º Cerenkov: PID MRPC: TOF, low p C: Calorimeter Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 12
13 Natural Extension of E Muc wider pase space Also data at low and ig z value to access target frag. and exclusive cannels. Bot transverse and longitudinal polarized target. 6/7 polarized leading twist TMDs Studied Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 13
14 1T = Te tird PDFs in addition to f 1 and g 1L 10% quark tensor carge from bot SSA data Fundamental property, bencmark test of Lattice QCD A Collins UT sin( s 1 T H1 Neutron Projections, 1/48 z-q^2 bins 6 GeV Data PRL. 107 ( Test bond violations Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 14
15 f 1T = Correlation between nucleon spin wit quark angular momentum q q Important test for factorization f1 T f SIDIS 1T DY Different sign wit twist-3 quark-gluon corr. dis. at ig P T? See Dr. Qiu s talk T-odd final state interaction -> Target SSA Neutron Projection, 1/48 z-q^2 bins Sivers A sin( f D UT s 1T 1 6 GeV Data PRL. 107 ( Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 15
16 Dominated by real part of interference between L=0 (S and L=1 (P states No GPD correspondence Lattice QCD -> Moments of worm-gear TMDs 1L = g 1T = 1L (1 P-D int. S-P int. Model Calculations -> 1L =? -g 1T Connections wit Collinear PDFs troug WW approx. and LIR. Neutron Projections, 1/48 z-q^2 bins 6 GeV Data arxiv: First Neutron Data!! AUL ALT A UL ( x H ( A Jin Huang <jinuang@jlab.org> LT ~ g1 T ( x D ( Hall C Summer 1 z Worksop 16 ~ 1 L 1 z
17 1T = Relativistic effect of quark PRD 78, (2008 (in models direct measurement of OAM PRD 58, (1998 Expect first non-zero Pretzelosity asymmetries Neutron Projection, 1/48 z-q^2 bins Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 17
18 Jin Huang Hall C Summer Worksop 18
19 Jin Huang Hall C Summer Worksop 19
20 Proton/deuteron/ 3 He unpolarized data in a large pase space coverage. Understand SIDIS process (Factorization, P T dependence Complementary to Hall B & C R SIDIS, P T dependence studies. Understand te Nuclear effect in te ligt nuclei. E dedicated unpolarized data Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 20
21 International collaboration (8 countries, 50+ institutes and 190+ collaborators Rapid Growt in US-Cina Collaboration (2 grants from NSFC Joint effort wit PVDIS-SoLID (sared detector/daq. Complete study of magnet options (pursuing CLEO now Pipeline DAQ (Hall D standard GEM Tracker (Cinese Hadron Collaboration wit Jlab/UVA/INFN +Tracking (Caltec + U. Mass + Syracuse + JLab MRPC TOF (Cinese Hadron Collaboration, successful in RHIC-STAR Detailed conceptual design of Gas Cerenkov (Duke + Temple Two proposed tecnologies: Saslyk/SciFi for E&M Cal (Duke+ UVA + MIT + Los Alamos Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 21
22 Possible coices of magnets BABAR, CLEO, CDF, ZEUS, Hall D, New design Field and acceptance studied for te first four GEMC based simulation framework Allow for quantitative decisions on magnet acceptance Rates/background studies Plot by Y. Zang BABAR CLEO Plot by Z.W. Zao ZEUS CDF sown in page 12 Jin Huang Hall C Summer Worksop 22
23 Good progress wit optics design Near perfect optics eff. acieved wit Winston cone + 6x6 det. Viable poto detectors Field-resistive PMTs or GEM-CsI detectors, Test on-goning Next stage is R&D and prototyping. Plots by S. Malace 13.6 Winston cone 6x6 detector
24 GEM R&D Efforts from UVa/INFN/JLab are combined wit te GEM R&D for te Super-BigBite & EIC Two major Grand support from Cina EM calorimeters Coices of Saslik & SciFi (Pb or Fe studied Te Saslik design is more favored MRPC Onsite test in November DAQ system Follows te Hall D pat Web: ttp://allaweb.jlab.org/12gev/solid/ Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 24
25 SIDIS is a powerful tool to study Parton dynamics in te amplitude level (TMDs Tensor Carge, Spin-OAM correlation, flavor dependence, etc. SoLID is an ideal device to study SIDIS Hig luminosity, large acceptance and full azimutal coverage Will provide ultimate precision (4-D of SSA/DSA, at ig-x (valence, low Q 2 region, wic is crucial input to global analysis. Test SIDIS factorization, P T dependence at JLab12 (complementary to SIDIS programs in Hall B/C Integrated Effort in SoLID R&D wit PVDIS Steady progress In preparation for te Director Review. Jin Huang <jinuang@jlab.org> Hall C Summer Worksop 25
& Tech Note: Jin Huang (M.I.T.), Yi Qiang (JLab) Hall A Analysis Workshop Dec 8, JLab
& Tec Note: ttp://www.jlab.org/~jinuang/transversity/mle.pdf Jin Huang (M.I.T., Yi Qiang (JLab Hall A Analysis Worksop Dec 8, 010 @ JLab Wat are Azimutal Asymmetries TMD & SIDIS Definition Related Experiments
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