The Form Factors of the Nucleons: Present Status - Fisica

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Future Form Factor measurements at Jlab with 11 GeV beams starting in 2015 Hall Form Factor max. Q 2 Expt. number A G Mp 17.5 12-07-108 spectrometer 2/17/2013 C.F. Perdrisat SAEMP Trento 2013 52 GE G Mn 18 12-09-019 SBS Cross section G En 10 12-09-016 SBS asym. G Ep/G Mp 12(14) 12-07-109 SBS Recoil polarization B G Mn 14 12-07-104 Cross section 1/2 10 -4 -10 -2 12-11-106 C G En 7 12-11-009 Recoil polar.
The following collaborators were instrumental for the success of the 3 GEp experiments at Jefferson Lab: V. Punjabi, Norfolk State U. M.K. Jones, Jefferson Lab E. J. Brash, Christopher Newport U. L. Pentchev, Jefferson Lab. G. Quemener, CNRS-IN2P3, Grenoble O. Gayou, CNRS-IN2P3 Aubiere A. Puckett, Jefferson Lab M. Meziane, TUNL, Duke U. Wei Luo, Lanzhou U. Thank you for your attention 2/17/2013 C.F. Perdrisat SAEMP Trento 2013 53
Page 1 and 2: The Form Factors of the Nucleons: P
Page 3 and 4: Results for the proton’s G Ep and
Page 5 and 6: One-photon exchange or Born approxi
Page 7 and 8: Rosenbluth Separation Method In ter
Page 9 and 10: All Rosenbluth separation data for
Page 11 and 12: Polarization Transfer Method h beam
Page 13 and 14: Results for the G Ep/G Mp ratios fr
Page 15 and 16: Previous slides illustrate discrepa
Page 17 and 18: 2/17/2013 Many theoretical models a
Page 19 and 20: Dressed quarks in the Nucleon Dress
Page 21 and 22: Perturbative QCD (pQCD): Asymptotic
Page 23 and 24: GPDs and Electromagnetic FF The fir
Page 25 and 26: The proton is not spherical? Not a
Page 27 and 28: Quark Flavor separation Assume that
Page 29 and 30: Quark Flavor separation (II) In Rob
Page 31 and 32: Fd 1n Fd 2n Fu , 1p Fu , 2p Proto
Page 33 and 34: Each of the neutron Sachs form fact
Page 35 and 36: More about the Rosenbluth versus do
Page 37 and 38: Radiative correction to the last da
Page 39 and 40: Currently 3 attempts to measure two
Page 41 and 42: Preliminary results from run II, No
Page 43 and 44: Two-photon exchange is next term to
Page 45 and 46: P ℓ / P ℓ Born Kivel and Vander
Page 47 and 48: Mainz JLab Mostly Hydrogen Lamb shi
Page 49 and 50: 1) At Jlab E08-007, data taking com
Page 51: Conclusions continued • Much has

The Form Factors of the Nucleons: Present Status - Fisica

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