PAC37 Charge

1.) Review new proposals, previously conditionally approved proposals, and letters of intent † for experiments that will utilize the 12 GeV upgrade of CEBAF and provide advice on their scientific merit, technical feasibility and resource requirements.

Identify proposals with high-quality physics that, based on what we know today, are of sufficient scientific merit that they will be included in the top half of the priority list to be established for the first 5 years of 12 GeV operations and recommend for approval .

Identify other proposals with physics that have the potential for falling into this category pending clarification of scientific and/or technical issues and recommend for conditional approval. Provide comments on technical and scientific issues that should be addressed by the proponents prior to review at a future PAC.

† Letters of intent will be given the same “rights” to their scientific ideas as are currently afforded to deferred experiments 1

Conditional Approval

Two types: C1 – approval pending technical review, no need to return to PAC C2 - approval pending further review by future PAC

2

PAC37 Charge (cont’d)

2.) For the 12 GeV program category “Low-energy tests of the Standard Model and Fundamental Symmetries”, review previously approved proposals (including those recommended for approval at this PAC meeting under charge element 1) and recommend a scientific rating and beamtime allocation. The grading should be consistent with the well-established “scale” used for the scientific priorities in the past at Jefferson Lab. 3

Monday afternoon

“Grading” Session I

4

Tuesday morning

“Grading” Session II

5

Remainder of sessions

Tues. afternoon:

The Hadron spectra as probes of QCD (1 prop.) The longitudinal structure of the hadrons (1 prop.)

Wed. morning:

The transverse structure of the hadrons (3 prop.)

Wed. afternoon:

Hadrons and cold nuclear matter (3 prop.)

Thurs. morning:

The 3D structure of the hadrons (4 prop.)

Note: no rating or beamtime allocation

Thurs. afternoon:

LOI’s

6

12 GeV Approved Experiments by Physics Topics Topic

The Hadron spectra as probes of QCD (rated) (GluEx and heavy baryon and meson spectroscopy) The transverse struture of the hadrons (rated) (Elastic and transition Form Factors)

Hall A Hall B Hall C Hall D Total

4 2 2 1

1 8

The longitudinal structure of the hadrons (rated) (Unpolarized and polarized parton distribution functions) 1 2 4

7

The 3D structure of the hadrons (unrated) (Generalized Parton Distributions and Transverse Momentum Distributions) 2 7 2

11

Hadrons and cold nuclear matter (rated) (Medium modification of the nucleons, quark hadronization, N-N correlations, hypernuclear spectroscopy, few-body experiments) Low-energy tests of the Standard Model and Fundamental Symmetries (to be rated at PAC 37)

TOTAL

1 2

10

2

13

4

12

1

2 7 3 37

7

12 GeV Approved Experiments by PAC Days Topic

The Hadron spectra as probes of QCD (rated) (GluEx and heavy baryon and meson spectroscopy) The transverse structure of the hadrons (rated) (Elastic and transition Form Factors) The longitudinal structure of the hadrons (rated) (Unpolarized and polarized parton distribution functions) The 3D structure of the hadrons (unrated) (Generalized Parton Distributions and Transverse Momentum Distributions) Hadrons and cold nuclear matter (rated) (Medium modification of the nucleons, quark hadronization, N-N correlations, hypernuclear spectroscopy, few-body experiments) Low-energy tests of the Standard Model and Fundamental Symmetries (to be rated at PAC 37)

TOTAL Hall A Hall B Hall C Hall D Total

144 23 (190) 5 (592)

954

70 120 (801) 100

1091

118 118 (80) 102

418

120 (88)

208 120 332 261 1071 207 680 2671

8

CLAS12

Proposal Contact Person

Approved Experiments

Physics Energy (GeV) 11 PAC days

40

Parallel Running E12-09-003 Gothe, Mokeev N* at high Q 2 E12-06-119(a) E12-06-112 E12-06-108 Sabatie Avakian Stoler DVCS pol. beam ep→eπ +/-/0 X DVMP in π 0 ,η prod L/T separation 11 11 11 8.8

6.6

11 80 20 20 E12-06-119(b) Sabatie DVCS pol. target 80 60 80 20 20 120 120 E12-06- 109 E12-07-107 E12-09-007(b) E12-09-009 E12-06-106 E12-06-117 E12-06-113 Kuhn Avakian Hafidi Avakian Hafidi Brooks Bültman Long. Spin Str.

TMD SSA Partonic SIDIS Spin-Orbit Corr.

Color Trans. ρ 0 Quark Hadronizat.

Neutron Str. Fn.

11 11 11 11 11 11 11 80 103 103 103 40 60 40 50 5 100 40 E12-07-104 E12-09-007(a) E12-09-008 Total Gilfoyle Hafidi Contalbrigo Neutron mag. FF Partonic SIDIS Boer-Mulders w/ Kaons 11 11 11

30

56 56

1091

56 26

Hall B

Comment Run Group days 120 175 100 40 82

517

Assume polarized experimen ts run 50% of time w/ reversed field Different nuclear targets condition. approved 007/008 needs 26d reversed field

9

10