Polarizations for proton knockout reactions from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>∕</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>orbits at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>1</mml:mn><mml:mspace width="0.3em" /><mml:mtext>GeV</mml:mtext></mml:mrow></mml:math>

Andreev, V. A.; Andronenko, M. N.; Amalsky, G. M.; Belostotski, S.; Domchenkov, O.A.; Fedorov, O. Ya.; Hatanaka, K.; Izotov, A.; Jgoun, A.; Kamiya, J.; Kisselev, A.; Kopytin, M.; Miklukho, O. V.; Naryshkin, Y.; Noro, T.; Obayashi, E.; Prokofiev, A. N.; Prokofiev, D. A.; Sakaguchi, H.; Sulimov, V.; Shvedchikov, A. V.; Takeda, Hiroyuki; Trush, S. I.; Vikhrov, V.; Wakasa, T.; Yasuda, Yusuke; Yoshida, Hajime; Zhdanov, A. A.

doi:10.1103/physrevc.69.024604

Cited by 20 publications

(14 citation statements)

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“…The proton optical potential of carbon has been determined by Cooper et al [13] using Dirac phenomenology. Within this approach, widely employed in analyses of electron-induced proton knockout and nucleon scattering [39][40][41], the optical potential is described by means of the (complex) scalar and vector potentials, S and V , appearing in the Dirac equation. Their dependence on kinetic energy, t kin , and radial coordinate, r, is found by fitting the scattering solutions to the measured elastic cross section, analyzing power, and spin rotation function, available for protons of kinetic energy in the range 29 ≤ t kin ≤ 1040 MeV.…”

Section: Formalismmentioning

confidence: 99%

Improving the accuracy of neutrino energy reconstruction in charged-current quasielastic scattering off nuclear targets

2015

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We report the results of a theoretical study of quasielastic electron and neutrino interactions with carbon. Our approach takes into account the effects of final-state interactions between the struck nucleon and the residual nucleus, neglected in the impulse approximation, through a generalization of the spectral function formalism. The calculated electron-scattering cross sections turn out to be in very good agreement with the available data over a broad kinematical region. The impact of nuclear effects on the reconstruction of neutrino energy in charged-current quasielastic processes is also studied, and the results of our approach are compared to the predictions of the relativistic Fermi gas model, routinely employed in most Monte Carlo simulations. Finally, we discuss the limitations of the existing procedure for energy reconstruction and propose a new, improved, one. At energy ~600 MeV, we observe a sizable difference between neutrino and antineutrino scattering, important for the measurements of charge-parity symmetry violation. Our analysis suggests that a reliable determination of neutrino energy can only be obtained from models validated by a systematic comparison to the available electron-scattering data.PHYSICAL REVIEW D 91, 033005 (2015) U-Uv + iUw, originally proposed in the context of (e ,e ') processes by Horikawa et al. [38]. Within this picture, the real part of the potential, Uv , determines a modification of the energy spectrum of the final-state nucleon, while the imaginary part, Uw, moving strength 033005-2

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Section: Formalismmentioning

confidence: 99%

Improving the accuracy of neutrino energy reconstruction in charged-current quasielastic scattering off nuclear targets

2015

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“…4, the experimental data (excluding the 4 He data) are also compared with the theoretical calculations for the case when a relativistic effect, the distortion of the nucleon spinor, is taken into account (the M * N curve). The calculations were carried out in the Shrödinger equivalent form [10] using the THREEDEE code [17]. More specifically, these calculations consist of a non-relativistic DWIA calculations with the nucleon-nucleon t-matrix, that is modified in the nuclear potential following a procedure similar to that proposed by Horowits and Iqbal [5].…”

Section: Resultsmentioning

confidence: 99%

“…This work is a part of the experimental program in the frame of which the medium-induced modifications of the nucleon-nucleon scattering amplitudes are studied at PNPI synchrocyclotron with 1 GeV proton beam [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…In early PNPI-RCNP experiment [10], the polarizations P 1 and P 2 of both secondary protons from the (p, 2p) reactions at 1 GeV with the 1S-shell protons of the nuclei 6 Li, 12 C and with the 2S-shell protons of the 40 Ca nucleus has been measured at the nuclear proton momenta close to zero. The polarization observed in the experiment, as well as the analyzing power A y in the RCNP experiment at the 392 MeV polarized proton beam [15,16], drastically differed from that calculated in the framework of non-relativistic Plane Wave Impulse Approximation (PWIA) and of spin-dependent Distorted Wave Impulse Approximation (DWIA) [17], based on free space proton-proton interaction.…”

Section: Introductionmentioning

confidence: 99%

“…Here we present the polarization data for the reaction with the nuclei 4 He, 6 Li, 12 C (1S-shell) and 40 Ca nucleus (2S-shell). These data were obtained by averaging the results of our early experiments [10,11] and the results of the new measurements performed after upgrade of the spectrometer electronics. In the experiments the polarization was measured with much better statistical accuracy for the nuclei 4 He, 12 C. We also present new data on the polarization in the reaction with the 1S-shell protons of the 28 Si nucleus.…”

Section: Introductionmentioning

confidence: 99%

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Polarization effects in the quasielastic (p, 2p) reaction with the nuclear S-Shell Protons at 1 GeV

et al. 2013

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The polarization of the secondary protons in the (p, 2p) reaction with the S-shell protons of nuclei 4 He, 6 Li, 12 C, 28 Si, 40 Ca was measured at 1 GeV unpolarized proton beam. The spin correlation parameters C ij for the 4 He and 12 C targets also were for the first time obtained as well. The polarization measurements were performed by means of a two-arm magnetic spectrometer, each arm of which was equipped with the multiwire-proportional chamber polarimeter. This experiment was aimed to study a modification of the proton-proton scattering matrix in the nuclear medium. Comments: 28 pages, 7 figures, 6 tables, Submitted to the journal "Physics of Atomic Nuclei" Category: Nuclear experiment (nucl-ex)

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Nuclear Data Sheets for A = 39

Singh

Cameron

2006

Nuclear Data Sheets

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Polarizations for proton knockout reactions froms1∕2orbits at1GeV

Cited by 20 publications

References 26 publications

Improving the accuracy of neutrino energy reconstruction in charged-current quasielastic scattering off nuclear targets

Improving the accuracy of neutrino energy reconstruction in charged-current quasielastic scattering off nuclear targets

Polarization effects in the quasielastic (p, 2p) reaction with the nuclear S-Shell Protons at 1 GeV

Nuclear Data Sheets for A = 39

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