Polarization Transfer in the 4He(e,e'p)3H Reaction at Q² = 0.8 and 1.3 (GeV/c)²

M. Paolone , S.P. Malace , S. Strauch , I. Albayrak , J. Arrington , B.L. Berman , E.J. Brash , B. Briscoe

show 50 more authors

A. Camsonne J.-P. Chen M.E. Christy E. Chudakov E. Cisbani B. Craver F. Cusanno R. Ent F. Garibaldi R. Gilman O. Glamazdin J. Glister D.W. Higinbotham C.E. Hyde-Wright Y. Ilieva C.W. de Jager X. Jiang M.K. Jones C.E. Keppel E. Khrosinkova E. Kuchina G. Kumbartzki B. Lee R. Lindgren D.J. Margaziotis D. Meekins R. Michaels K. Park L. Pentchev C.F. Perdrisat E. Piasetzky V.A. Punjabi A.J.R. Puckett X. Qian Y. Qiang R.D. Ransome A. Saha A.J. Sarty E. Schulte P. Solvignon R.R. Subudi L. Tang D. Tedeschi V. Tvaskis J.M. Udias P.E. Ulmer J.R. Vignote F.R. Wesselmann B. Wojteskhowski X. Zhan

Authors on Pith no claims yet

classification ⚛️ nucl-ex

keywords protonreactionpolarizationpolarization-transferapproximationcharge-exchangecoefficientscontradicting

0 comments

read the original abstract

Proton recoil polarization was measured in the quasielastic 4He(e,e'p)3H reaction at Q^2 = 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2 with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e,e' p) reaction, contradicting a relativistic distorted-wave approximation, and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton.

This paper has not been read by Pith yet.

Polarization Transfer in the 4He(e,e'p)3H Reaction at Q² = 0.8 and 1.3 (GeV/c)²

discussion (0)