Differential cross section measurements for 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>γ</mml:mi><mml:mi>n</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mi>p</mml:mi></mml:mrow></mml:math>
 above the first nucleon resonance region

Mattione, P.; Carman, D. S.; Strakovsky, I. I.; Workman, R. L.; Kudryavtsev, A. E.; Švarc, Alfred; Tarasov, V. E.; Adhikari, K. P.; Adhikari, S.; Adikaram, D.; Akbar, Z.; Pereira, S. Anefalos; Ball, J.; Baltzell, N. A.; Bashkanov, M.; Battaglieri, M.; Batourine, V.; Bedlinskiy, I.; Biselli, A. S.; Boiarinov, S.; Briscoe, W. J.; Burkert, V. D.; Cao, T.; Celentano, A.; Charles, G.; Chetry, T.; Ciullo, G.; Clark, L.; Cole, P. L.; Contalbrigo, M.; Cortes, O.; Credé, V.; D’Angelo, A.; Dashyan, N.; Vita, R. De; Sanctis, E. De; Defurne, M.; Deur, A.; Djalali, C.; Dugger, M.; Dupré, R.; Egiyan, H.; Alaoui, A. El; Fassi, L. El; Eugenio, P.; Fedotov, G.; Fersch, R.; Filippi, A.; Fleming, J. A.; Fradi, A.; Ghandilyan, Y.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Gleason, C.; Golovatch, E.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Hafidi, K.; Hakobyan, H.; Hanretty, C.; Harrison, N.; Hattawy, M.; Heddle, D.; Hicks, K.; Hollis, G.; Holtrop, M.; Hughes, S. M.; Ilieva, Y.; Ireland, D. G.; Ishkhanov, B. S.; Isupov, E. L.; Jenkins, D.; Jiang, Hao; Jo, H. S.; Joo, K. S.; Joosten, S.; Keller, D.; Khachatryan, G.; Khachatryan, M.; Khandaker, M.; Kim, A.; Kim, W.; Klein, A.; Klein, F. J.; Kubarovsky, V.; Kuleshov, S.; Lanza, L.; Lenisa, P.; Livingston, K.; MacGregor, I. J. D.; Markov, N.; McKinnon, B.; Meyer, C. A.; Meziani, Z. E.; Mineeva, T.; Mokeev, V.; Montgomery, R. A.; Movsisyan, A.; Camacho, C. Muñoz; Murdoch, G.; Nadel-Turoński, P.; Net, L. A.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Osipenko, M.; Ostrovidov, A. I.; Paolone, M.; Paremuzyan, R.; Park, K.; Pasyuk, E.; Phelps, W.; Pisano, S.; Pogorelko, O.; Price, J. W.; Procureur, S.; Prok, Y.; Protopopescu, D.; Raue, B. A.; Ripani, M.; Ritchie, B. G.; Rizzo, A.; Rosner, G.; Sabatié, F.; Salgado, C.; Schumacher, R. A.; Sharabian, Y. G.; Simonyan, A.; Skorodumina, Iu.; Smith, G. D.; Sokhan, D.; Sparveris, N.; Stanković, Ivana; Stepanyan, S.; Strauch, S.; Taiuti, M.; Ungaro, M.; Voskanyan, H.; Voutier, E.; Walford, N. K.; Watts, D. P.; Wei, Xin; Wood, M. H.; Zachariou, N.; Zhang, J.; Zhao, Z. W.

doi:10.1103/physrevc.96.035204

Cited by 30 publications

(46 citation statements)

References 51 publications

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“…In recent years, the photoproduction processes are widely employed to investigate the properties of nucleon resonance [4][5][6][7][8]. Up to now, most of these studies concentrate on the single meson production process.…”

Section: Introductionmentioning

confidence: 99%

Nucleon resonance production in the γp→pηϕ reaction

2019

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In this work, we perform a study of nucleon resonance production in the γp → pηφ reaction within an effective Lagrangian approach. In our model, we consider the excitation of the N * (1535), N * (1650), N * (1710) and N * (1720) in the intermediate state and the background term. We find that this reaction is dominated by the excitation of the N * (1535) in the near threshold region. Especially, we study the possible role of the scalar meson exchange in this reaction. It is found that the f0(980) exchange may give a significant contribution and the parity asymmetry can be used to identify its role in this reaction.PACS numbers:

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Section: Introductionmentioning

confidence: 99%

Nucleon resonance production in the γp→pηϕ reaction

2019

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“…Extracting (un)polarized cross sections for pion photoproduction off the neutron, γn → π − p and γn → π 0 n, from the deuteron-target data, d(γ, π − )pp and d(γ, π 0 )pn, is an important task at photon facilities such as Jefferson Laboratory (JLab) [1][2][3][4] and MAMI [5][6][7][8][9][10][11], forming a base for studying the baryon spectroscopy. A commonly used procedure of extracting the γ-n cross sections is to apply a certain set of kinematical cuts to the deuteron data and assume that the selected events are from single-nucleon quasi-free processes.…”

mentioning

confidence: 99%

“…They considered the impulse, N -exchange, and π-exchange mechanisms for d(γ, π − )pp [1,12], and estimated FSI corrections for extracting γn → π − p cross sections. The FSI corrections were then used in JLab analyses [1,4]. However, their extraction formula [Eq.…”

mentioning

confidence: 99%

Extraction of γn→πN observables from deuteron-target data

Nakamura

2018

Phys. Rev. C

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An examination is conducted on a commonly used procedure for extracting (un)polarized γn → π − p and γn → π 0 n observables from d(γ, π − )pp and d(γ, π 0 )pn data, using a model that consists of the impulse term and the final-state interaction (FSI) terms due to nucleon-and pion-exchange. Recent experimental and theoretical analyses used an extraction method that does not impose a cut on the final πN invariant mass W . I demonstrate that the use of this method can result in the γn → πN observables that are seriously distorted by the nucleon Fermi motion, and that one can efficiently avoid this problem by imposing a cut on W . It is also shown that the use of kinematical cuts of recent experimental analyses can still leave in the selected samples substantial FSI effects that must be corrected in extracting the γn → πN cross sections. In terms of the nucleon-and pion-exchange mechanisms, I give the first qualitative explanation of the FSI corrections, obtained in a recent MAMI experiment, for extracting γn → π 0 n cross sections.

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“…To this end, a systematic analysis of the data collected on various nuclear targets by different experiments using the CLAS detector in Hall B at Jefferson Laboratory, while not completely addressing the requirements outlined above, would be an important advance. So far, the published studies focused on specific hadronic processes with hydrogen targets [42][43][44][45][46][47][48][49]. These should already be useful for testing generator models for certain hadronic processes, such as ρ meson production through higher resonances.…”

Section: Electron Scattering Measurements and Neutrino Cross Sectmentioning

confidence: 99%

Lepton-nucleus cross section measurements for DUNE with the LDMX detector

Ankowski

Friedland

et al. 2020

Phys. Rev. D

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We point out that the LDMX (Light Dark Matter eXperiment) detector design, conceived to search for sub-GeV dark matter, will also have very advantageous characteristics to pursue electron-nucleus scattering measurements of direct relevance to the neutrino program at DUNE and elsewhere. These characteristics include a 4-GeV electron beam, a precision tracker, electromagnetic and hadronic calorimeters with near 2π azimuthal acceptance from the forward beam axis out to ∼40 • angle, and low reconstruction energy threshold. LDMX thus could provide (semi)exclusive cross-section measurements, with detailed information about final-state electrons, pions, protons, and neutrons. We compare the predictions of two widely-used neutrino generators (genie, gibuu) in the LDMX region of acceptance to illustrate the large modeling discrepancies in electron-nucleus interactions at DUNE-like kinematics. We argue that discriminating between these predictions is well within the capabilities of the LDMX detector.

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Differential cross section measurements for γn→π−p above the first nucleon resonance region

Cited by 30 publications

References 51 publications

Nucleon resonance production in the γp→pηϕ reaction

Nucleon resonance production in the γp→pηϕ reaction

Extraction of γn→πN observables from deuteron-target data

Lepton-nucleus cross section measurements for DUNE with the LDMX detector

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