Hall C Users Meeting. January 22-23, 2010
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1 Hall C Users Meeting January 22-23, 2010
2 Experiments completed in last year Exp Title Spin Asymmetries of the Nucleon Experiment E (SANE) Spokespersons S. Choi, M. Jones, Z. E. Meziani, O. Rondon Spectroscopic investigation of the hypernuclei in the wide O. Hashimoto, S. E mass region using (e,e K+) Nakamura, J. Reinhold, L. Tang reaction (HKS)
3 SANE Was scheduled to run 2.5 of four experiments with similar setup E07-003: E07-011: E : E05-101: SANE g1 & g2 at Q2 = 4 GeV2 g1d/f1 Deuteron spin structure semi-sane d(e,e h) - parasitic to g1d Helicity Correlations in Compton Scattering Early in run, 5T superconducting magnet for polarized target failed. Service module opened up, 6 superconducting wires repaired. After repairs, only time to run SANE. Final statistics (Figure of merit IPt2Pb2) ~75% of proposed for target polarized perpendicular to beam ~30% of proposed for target polarized parallel to beam Additional physics topics: GEp/GMp, inclusive HMS data g1d and semi-sane did not run. Some g1d data since collected in Hall B.
4 HES-HKS in Hall C HE S Bunke r Beamlin e Photon Dump HK S
5 Schedule Overview Present May 24, 2010 Qweak installation May 25, 2010 July 22, 2010 Qweak commissioning run July 23, 2010 September 5, 2010 Summer down September 6, 2010 May 2, 2011 Qweak running May 3, 2011 November 6, month down SOS decomissioning November 7, 2011 May 14, 2012 Qweak running May 15, 2012 September, 2012 Qweak and SOS removal September 2012 Start of SHMS construction September 2014 Start of comissioning
6 Beamline upgrade for Compton New beamline platform installed Old Moller transfer line removed. New shorter transfer line delivered, installation soon. Compton chicane magnets just arrived. Compton Bates
7 Qtor Assembly
8 Publications in last year G0 Strange Quark Contributions to Parity Violating Asymmetries In the Backward Angle G0 Electron Scattering Experiment PRL 104, E New Measurements of the EMC Effect in Very Light Nuclei PRL 103, E Applications of Quark hadron Duality in F2 Structure Function PRC 80, E Neutral Pion Electroproduction in the Resonance Region at high Q2 PRC 80, E Electroproduction of eta Mesons in the S11 Resonance Region At high momentum. PRC 80, E Search for Sub threshold Photoproduction of J/Psi Mesons PRC 79, Submitted: Inclusive ep fits, associated fission of Bi, Nachmann Moments of p & d A(e,e'pi), Neutron duality Future: x>1, G0, Hypernuclear, F2 at low Q2, SANE, GeP, GeP 2gamma Total Publications: 79 PRL: 30 NIM: 10 Would like to see more Instrumentation pubs: HKS setups, BETA, polarimeter, SIMC,...
9 I m in ur atom, probing ur nucleus Local (Also featured on Physical Review Focus)
10 Top 10 Cited Hall C Papers E PRL 86, 1713 (2001) Charged Pion Form Factor E PRL 82, 45 (1999) Electroproduction of Delta at High Momentum Transfer A E PRL 95, (2005)G0 Forward A A A- Quark-hadron duality in electron Ph. Rep. 406, 127 (2004) scattering Verification of Quark-Hadron PRL 85, 1186 (2000) Duality PRL 85, 1182 (2000) Valencelike Quark-Hadron Dualit GeN Q2=0.5 GeV/c2, polarized E PRL 87, (2001) target GeN Q2=1.45 GeV/c2, recoil E PRL 91, (2003) polarimetry ep elastic cross section 0.4 < 2Q< E PRC 70, (2004) 5.5 GeV/c2 E PRL 84, 5053 (2000) t20
11 Top 8 Cited >= 2004 Spires PR Rating Exp A E PRL 95, (2005) G0 Forward A A E PRL 92, (2004) GeN Q2 = 0.5 and 1.0 GeV/c E PRC 75, (2007) A Reference Title Quark-hadron duality in electron scattering ep elastic cross section 0.4 < Q2 < E PRC 70, (2004) 5.5 GeV/c2 Pion Form Factor Q2 = 1.6, 2.45 E PRL 97, (2006) GeV/c2 PhyRep 406, 127 (2005) Pion Form Factor Q2 = GeV/c2 Correlated Strength in Spectral E PRL 93, (2004) Functions Nucleon Strange and Anapole PRL 97, (2006) Form Factors
12 Students 70 Hall C Ph.Ds 2007: : : : 1 26 active students with data (e,e'), (e,p) 4 HKS05 3 G0 6 GeP 2 SANE 5 HKS09 6 Qweak 12
13 Staff Notes 3 new physics staff: Brad Sawatzky Silviu Covrig Patricia Solvignon Peter Bosted retired to Hawaii Will continue involvment with Jlab (Qweak and Hall B) through W&M Hall C Postdoc position posted (#10515) Apply on web with CC to saw@jlab.org Will open position for Bill Vulcan replacement soon Glenn Young new Associate Project Manager for Physics/12Gev Rolf Ent back in Physics division
14 Future Meetings Looking for input Continue schedule of winter analysis and summer physics workshops? Continue Friday/Saturday format? Add day for special topics software, electronics, detectors (Doing this with SHMS detector half day meeting) SHMS meetings other times of year Role of steering committee
15 Notes Hall C Web information: Document Database Good collection of slides from SHMS meetings and reviews Please submit conference slides and proceedings papers Publications list Submit corrections to saw@jlab.org PhD Thesis Listing Submit corrections to eljones@jlab.org Wiki SHMS-HMS Users Group Newsletter and mailing list
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