Polarized Structure Function $\sigma_{LT'}$ from $\pi^0 p$ Electroproduction Data in the Resonance Region at $0.4$ GeV$^2 < Q^2 < 1.0$ GeV$^2$

A.A. Golubenko; A. Bianconi; A. D'Angelo; A. Deur; A. El Alaoui; A. Filippi; A. Hobart; A. Khanal; A. Kim; A. Kripko

arxiv: 2112.07732 · v1 · pith:HG67TZQFnew · submitted 2021-12-14 · ⚛️ nucl-ex

Polarized Structure Function σ_(LT') from π⁰ p Electroproduction Data in the Resonance Region at 0.4 GeV² < Q² < 1.0 GeV²

E.L. Isupov , V.D. Burkert , A.A. Golubenko , K. Joo , N.S. Markov , V.I. Mokeev , L.C. Smith , W.R. Armstrong

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H. Atac H. Avakian N.A. Baltzell L. Barion M. Battaglieri I. Bedlinskiy F. Benmokhtar A. Bianconi L. Biondo A.S. Biselli M. Bondi F.Boss\`u W.J. Briscoe W.K. Brooks D. Bulumulla R.A. Capobianco D.S. Carman J.C. Carvajal P. Chatagnon V. Chesnokov G. Ciullo P.L. Cole B.A. Clary M. Contalbrigo G. Costantini A. D'Angelo N. Dashyan R. De Vita M. Defurne A. Deur S. Diehl C. Djalali R. Dupre H. Egiyan A. El Alaoui L. El Fassi L. Elouadrhiri P. Eugenio S. Fegan A. Filippi G. Gavalian G.P. Gilfoyle D.I. Glazier R.W. Gothe K.A. Griffioen M. Guidal L. Guo K. Hafidi H. Hakobyan M. Hattawy T.B. Hayward D. Heddle K. Hicks A. Hobart M. Holtrop I. Illari D.G. Ireland D. Jenkins H.S. Jo D. Keller A. Khanal M. Khandaker A. Kim W. Kim F.J. Klein V. Klimenko A. Kripko V. Kubarovsky V. Lagerquist L. Lanza M. Leali P. Lenisa K. Livingston I.J.D. MacGregor D. Marchand L. Marsicano V. Mascagna B. McKinnon Z.E. Meziani S. Migliorati T. Mineeva M. Mirazita C. Munoz Camacho P. Nadel-Turonski K. Neupane S. Niccolai T. O'Connell M. Osipenko P. Pandey M. Paolone L.L. Pappalardo R. Paremuzyan E. Pasyuk S.J. Paul W. Phelps N. Pilleux O. Pogorelko J. Poudel J.W. Price Y. Prok B.A. Raue T. Reed M. Ripani J. Ritman J. Rowley F. Sabati\'e C. Salgado A. Schmidt R.A. Schumacher Y.G. Sharabian E.V. Shirokov U. Shrestha P. Simmerling D. Sokhan N. Sparveris S. Stepanyan I.I. Strakovsky S. Strauch J.A. Tan R. Tyson M. Ungaro S. Vallarino L. Venturelli H. Voskanyan E. Voutier D. Watts K. Wei X. Wei M.H. Wood B. Yale N. Zachariou J. Zhang V. Ziegler

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The first results on the $\sigma_{LT'}$ structure function in exclusive $\pi^0p$ electroproduction at invariant masses of the final state of 1.5 GeV $<$ $W$ $<$ 1.8 GeV and in the range of photon virtualities 0.4 GeV$^2 < Q^2 < 1.0$ GeV$^2$ were obtained from data on beam spin asymmetries and differential cross sections measured with the CLAS detector at Jefferson Lab. The Legendre moments determined from the $\sigma_{LT'}$ structure function have demonstrated sensitivity to the contributions from the nucleon resonances in the second and third resonance regions. These new data on the beam spin asymmetries in $\pi^0p$ electroproduction extend the opportunities for the extraction of the nucleon resonance electroexcitation amplitudes in the mass range above 1.6 GeV.

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Polarized Structure Function σ_(LT') from π⁰ p Electroproduction Data in the Resonance Region at 0.4 GeV² < Q² < 1.0 GeV²

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