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Solid ammonia (NH$_3$) is commonly used as a dynamically polarized proton target for electron and muon scattering cross-section asymmetry measurements. As spin 1$^{+}$ particles, the $^{14}$N nuclei in the target are also polarized and…

Nuclear Experiment · Physics 2019-10-02 Moshe Friedman , Jessica Campbell , Donal Day , Douglas W. Higinbotham , Adam Sarty , Guy Ron

This thesis is dedicated to a study of a spin-isospin structure of the polarized ${}^3\mathrm{He}$. First, an introduction to the spin structure of ${}^3\mathrm{He}$ is given, followed by a brief overview of past experiments. The main focus…

Nuclear Experiment · Physics 2012-08-06 Miha Mihovilovic

The distorted spin-dependent spectral function of a nucleon inside an A=3 nucleus is introduced as a novel tool for investigating the polarized electron scattering off polarized $^3$He in semi-inclusive DIS regime (SiDIS), going beyond the…

Nuclear Theory · Physics 2014-04-02 L. P. Kaptari , A. Del Dotto , E. Pace , G. Salme' , S. Scopetta

Vector analyzing power for the proton-6He elastic scattering at 71 MeV/nucleon has been measured for the first time, with a newly developed polarized proton solid target working at low magnetic field of 0.09 T. The results are found to be…

We discuss contact-interaction searches in the processes e^+e^-\to \mu^+\mu^-, b\bar{b} and c\bar{c} at an e^+e^- Linear Collider with c.m. energy \sqrt{s}=0.5 TeV and with longitudinally polarized beams. The measurement of polarized cross…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. A. Babich , P. Osland , A. A. Pankov , N. Paver

An approach to calculate microscopic optical potential (OP) with the real part obtained by a folding procedure and with the imaginary part inherent in the high-energy approximation (HEA) is applied to study the $^8$He+p elastic scattering…

We present a bound on the imaginary part of the single helicity-flip amplitude for spin 1/2-spin 1/2 scattering at small momentum transfer. The variational method of Lagrange multipliers is employed to optimize the single-flip amplitude…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. T. Bates , N. H. Buttimore

The charge-exchange (3He,t) scattering to the isobaric analog state (IAS) of the target can be considered as "elastic" scattering of 3He by the isovector term of the optical potential (OP) that flips the projectile isospin. Therefore, the…

Nuclear Theory · Physics 2015-06-18 Bui Minh Loc , Dao T. Khoa , R. G. T. Zegers

Measurements of the ratio of the proton elastic form factors ($\mu_pG_E/G_M$) using Rosenbluth separation and those using polarization-based techniques show a strong discrepancy, which increases as a function of $Q^2$. The contribution of…

Nuclear Experiment · Physics 2017-12-07 Brian S. Henderson

The PINTEX facility at the IUCF Cooler ring, dedicated to the study of spin dependence in nucleon-nucleon interactions, has been used to measure polarization observables of the reaction pp -> pp pi0 at beam energies between 325 and 400 MeV.…

At the Relativistic Heavy-Ion Collider (RHIC), the Polarized Atomic Hydrogen Gas Jet Target polarimeter (HJET) is employed for the precise measurement of the absolute transverse (vertical) polarization of proton beams, achieving low…

Nuclear Experiment · Physics 2024-01-17 Andrei Poblaguev

Spin-dependent total pbar-d cross sections are considered using the optical theorem. For this aim the full spin dependence of the forward pbar-d elastic scattering amplitude is considered in a model independent way. The single-scattering…

Nuclear Theory · Physics 2009-03-12 Yu. N. Uzikov , J. Haidenbauer

The GEp-III and GEp-2$\gamma$ experiments, carried out in Jefferson Lab's Hall C from 2007-2008, consisted of measurements of polarization transfer in elastic electron-proton scattering at momentum transfers of $Q^2 = 2.5, 5.2, 6.8,$ and…

Differential elastic electron scattering cross sections of trichlorofluoromethane $\mathrm{(CCl_3F)}$ were measured for the first time over a broad energy range spanning 30 eV to 800 eV in the angular range of 20$^\circ$ to 150$^\circ$. The…

Chemical Physics · Physics 2025-04-02 Mareike Dinger , Yeunsoo Park , Woon Yong Baek

Lepton-nucleon elastic scattering, using the one-photon and one-scalar-boson exchange mechanisms considering all possible polarizations, is used to study searches for a new scalar boson and suggest new measurements of the nucleon form…

Nuclear Theory · Physics 2015-10-07 Yu-Sheng Liu , Gerald A. Miller

We report on a measurement of spin-momentum correlations in quasi-elastic scattering of longitudinally polarized electrons with an energy of 720 MeV from vector-polarized deuterium. The spin correlation parameter $A^V_{ed}$ was measured for…

New developments in empirical analyses of the proton-proton differential cross section data at high energies are reported. Making use of an unconstrained model-independent parametrization for the scattering amplitude and two different fit…

High Energy Physics - Phenomenology · Physics 2011-05-27 D. A. Fagundes , M. J. Menon , G. L. P. Silva

The discrepancy between proton electromagnetic form factors extracted using unpolarized and polarized scattering data is believed to be a consequence of two-photon exchange (TPE) effects. However, the calculations of TPE corrections have…

Nuclear Experiment · Physics 2013-09-04 M. Moteabbed , M. Niroula , B. A. Raue , L. B. Weinstein , D. Adikaram , J. Arrington , W. K. Brooks , J. Lachniet , Dipak Rimal , M. Ungaro , K. P. Adhikari , M. Aghasyan , M. J. Amaryan , S. Anefalos Pereira , H. Avakian , J. Ball , N. A. Baltzell , M. Battaglieri , V. Batourine , I. Bedlinskiy , R. P. Bennett , A. S. Biselli , J. Bono , S. Boiarinov , W. J. Briscoe , V. D. Burkert , D. S. Carman , A. Celentano , S. Chandavar , P. L. Cole , P. Collins , M. Contalbrigo , O. Cortes , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , E. De Sanctis , A. Deur , C. Djalali , D. Doughty , R. Dupre , H. Egiyan , L. El Fassi , P. Eugenio , G. Fedotov , S. Fegan , R. Fersch , J. A. Fleming , N. Gevorgyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , J. T. Goetz , W. Gohn , E. Golovatch , R. W. Gothe , K. A. Griffioen , M. Guidal , N. Guler , L. Guo , K. Hafidi , H. Hakobyan , C. Hanretty , N. Harrison , D. Heddle , K. Hicks , D. Ho , M. Holtrop , C. E. Hyde , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , H. S. Jo , K. Joo , D. Keller , M. Khandaker , A. Kim , F. J. Klein , S. Koirala , A. Kubarovsky , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , S. Lewis , H. Y. Lu , M. MacCormick , I . J . D. MacGregor , D. Martinez , M. Mayer , B. McKinnon , T. Mineeva , M. Mirazita , V. Mokeev , R. A. Montgomery , K. Moriya , H. Moutarde , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , R. Nasseripour , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , L. L. Pappalardo , R. Paremuzyan , K. Park , S. Park , E. Phelps , J. J. Phillips , S. Pisano , O. Pogorelko , S. Pozdniakov , J. W. Price , S. Procureur , D. Protopopescu , A. J. R. Puckett , M. Ripani , G. Rosner , P. Rossi , F. Sabatié , M. S. Saini , C. Salgado , D. Schott , R. A. Schumacher , E. Seder , H. Seraydaryan , Y. G. Sharabian , E. S. Smith , G. D. Smith , D. I. Sober , D. Sokhan , S. Stepanyan , S. Strauch , W. Tang , C. E. Taylor , Ye Tian , S. Tkachenko , H. Voskanyan , E. Voutier , N. K. Walford , M. H. Wood , N. Zachariou , L. Zana , J. Zhang , Z. W. Zhao , I. Zonta

The coplete analysis of the model-independent leading radiative corrections to cross-section and polarization observables in semi-inclusive deep-inelastic electron-nucleus scattering with detection of a proton and scattered electron in…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. V. Afanas'ev , I. Akushevich , G. I. Gakh , N. P. Merenkov

Parton distribution functions, which represent the flavor and spin structure of the nucleon, provide invaluable information in illuminating quantum chromodynamics in the confinement region. Among various processes that measure such parton…

Nuclear Experiment · Physics 2012-07-20 Xin Qian
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