Výsledky vyhledávání - "electron p: elastic scattering"

Akademický článek

Flavor Symmetry of Hydrogen Atoms Potentially Affecting the Proton Radius Deduced from the Electron-Hydrogen Scattering

Autor: Eugene Oks

Publikováno v: Symmetry, Vol 15, Iss 9, p 1760 (2023)

Precise knowledge of such fundamental quantity as the proton charge radius rp is extremely important both for the quantum chromodynamics (for quark-gluon structure) and for atomic physics (for atomic hydrogen spectroscopy). Yet the ambiguity in measu

Externí odkaz: https://doaj.org/article/eb06f5aa96fe436f8d8bc87df2f77854

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Study of Two-Photon Exchange via the Beam Transverse Single Spin Asymmetry in Electron-Proton Elastic Scattering at Forward Angles over a Wide Energy Range

Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2020, 124 (12), pp.122003. ⟨10.1103/PhysRevLett.124.122003⟩

We report on a new measurement of the beam transverse single spin asymmetry in electron-proton elastic scattering, $A^{ep}_{\perp}$, at five beam energies from 315.1 MeV to 1508.4 MeV and at a scattering angle of $30^{\circ} < \theta < 40^{\circ}$. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c507971c82e6b00af8b44b96abd2a4bc
https://doi.org/10.1103/physrevlett.124.122003

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Sensitivity of the elastic electron-proton cross section to the proton radius

Autor: Egle Tomasi-Gustafsson, S. Pacetti

Publikováno v: Eur.Phys.J.A
Eur.Phys.J.A, 2020, 56 (3), pp.74. ⟨10.1140/epja/s10050-020-00076-1⟩

The precise determination of the proton radius from recent elastic scattering electron-proton data is discussed. The necessary precision on the elastic cross section to discriminate among the values coming from atomic spectroscopy is scrutinized in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b802d98c21fdc0fc6d53a0568443822b
https://hal.archives-ouvertes.fr/hal-01965333

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The proton size

Autor: Eric Voutier, Jean-Philippe Karr, D. Marchand

Publikováno v: Nature Rev.Phys.
Nature Rev.Phys., 2020, 2 (11), pp.601-614. ⟨10.1038/s42254-020-0229-x⟩
Nature Reviews Physics
Nature Reviews Physics, Nature 2020, 2 (11), pp.601-614. ⟨10.1038/s42254-020-0229-x⟩

International audience; The charge radius of the proton can be determined using two different experimental techniques: measurements of electron–proton elastic scattering cross sections and high-resolution spectroscopy of the hydrogen atom.A decade

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1344e337742fc351820b79a4c4b1839e
https://hal.science/hal-03011020

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Updated analysis of recent results on electron and positron elastic scattering on the proton

Autor: Egle Tomasi-Gustafsson, V. V. Bytev

Publikováno v: Phys.Rev.C
Phys.Rev.C, 2019, 99 (2), pp.025205. ⟨10.1103/PhysRevC.99.025205⟩
Physical Review C
Physical Review C, American Physical Society, 2019, 99 (2), pp.025205. ⟨10.1103/PhysRevC.99.025205⟩
Physical Review

We discuss recent experimental results concerning the cross section ratio of positron over electron elastic scattering on protons, and compare with the predictions of a pre-existent calculation. The deviation from unity of this ratio, $i.e.$, a charg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16cd6cd8122c15c1c48c2b48bb18a535
https://hal.archives-ouvertes.fr/hal-02016780

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Two-photon exchange: myth and history

Autor: Egle Tomasi-Gustafsson, S. Pacetti

Publikováno v: Few Body Syst.
11th International Workshop on the Physics of Excited Nucleons
11th International Workshop on the Physics of Excited Nucleons, Aug 2017, Columbia, United States. pp.91, ⟨10.1007/s00601-018-1416-5⟩

After recalling the arguments for possible excess of two-photon contribution over $\alpha$-counting, model independent statements about the consequences on the observables will be given. The relevant experimental data are discussed: (polarized and un

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48fc2bb6096aa61f844f281a834ddb9c
https://hal.archives-ouvertes.fr/hal-02059205

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Polarization Transfer Observables in Elastic Electron Proton Scattering at $Q^2 = $2.5, 5.2, 6.8, and 8.5 GeV$^2$

Autor: Puckett, A.J.R., Brash, E.J., Jones, M.K., Luo, W., Meziane, M., Pentchev, L., Perdrisat, C.F., Punjabi, V., Wesselmann, F.R., Afanasev, A., Ahmidouch, A., Albayrak, I., Aniol, K.A., Arrington, J., Asaturyan, A., Baghdasaryan, H., Benmokhtar, F., Bertozzi, W., Bimbot, L., Bosted, P., Boeglin, W., Butuceanu, C., Carter, P., Chernenko, S., Christy, E., Commisso, M., Cornejo, J.C., Covrig, S., Danagoulian, S., Daniel, A., Davidenko, A., Day, D., Dhamija, S., Dutta, D., Ent, R., Frullani, S., Fenker, H., Frlez, E., Garibaldi, F., Gaskell, D., Gilad, S., Gilman, R., Goncharenko, Y., Hafidi, K., Hamilton, D., Higinbotham, D.W., Hinton, W., Horn, T., Hu, B., Huang, J., Huber, G.M., Jensen, E., Keppel, C., Khandaker, M., King, P., Kirillov, D., Kohl, M., Kravtsov, V., Kumbartzki, G., Li, Y., Mamyan, V., Margaziotis, D.J., Marsh, A., Matulenko, Y., Maxwell, J., Mbianda, G., Meekins, D., Melnik, Y., Miller, J., Mkrtchyan, A., Mkrtchyan, H., Moffit, B., Moreno, O., Mulholland, J., Narayan, A., Nedev, S., Nuruzzaman, N., Piasetzky, E., Pierce, W., Piskunov, N.M., Prok, Y., Ransome, R.D., Razin, D.S., Reimer, P., Reinhold, J., Rondon, O., Shabestari, M., Shahinyan, A., Shestermanov, K., Širca, S., Sitnik, I., Smykov, L., Smith, G., Solovyev, L., Solvignon, P., Subedi, R., Tomasi-Gustafsson, E., Vasiliev, A., Veilleux, M., Wojtsekhowski, B.B., Wood, S., Ye, Z., Zanevsky, Y., Zhang, X., Zhang, Y., Zheng, X., Zhu, L.

Publikováno v: Phys.Rev.C
Phys.Rev.C, 2017, 96 (5), pp.055203. ⟨10.1103/PhysRevC.96.055203⟩

The GEp-III and GEp-2$\gamma$ experiments were carried out in Jefferson Lab's (JLab's) Hall C from 2007-2008, to extend the knowledge of $G_E^p/G_M^p$ to the highest practically achievable $Q^2$ and to search for effects beyond the Born approximation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d237493f0cfbf9fe02db5bf5d523c8da
https://hal.archives-ouvertes.fr/hal-03186301

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Highlights in the hadron electromagnetic structure

Autor: Egle Tomasi-Gustafsson, S. Pacetti, Andrea Bianconi

Publikováno v: EPJ Web of Conferences, Vol 138, p 01003 (2017)
Bulg.J.Phys.
Coordination Meeting on Advanced Aspects in Nuclear Structure and Reactions at Different Energy Scales
Coordination Meeting on Advanced Aspects in Nuclear Structure and Reactions at Different Energy Scales, Apr 2017, Arbanassi, Bulgaria. pp.003-015
EPJ Web Conf.
23rd International Baldin Seminar on High Energy Physics Problems
23rd International Baldin Seminar on High Energy Physics Problems, Sep 2016, Dubna, Russia. pp.01003, ⟨10.1051/epjconf/201713801003⟩

International audience; In frame of a general view of proton electromagnetic form factors, two recent findings related to reanalyses of data are presented. Recent experiments in the scattering and in the annihilation region provided us with more prec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c833307114e6f9c6ff4ebcc005c12dc
https://doaj.org/article/16b84ecba13f4ad298462a0cf0c092c8

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Radiative corrections to elastic proton-electron scattering measured in coincidence

Autor: G. I. Gakh, Egle Tomasi-Gustafsson, M. I. Konchatnij, N. P. Merenkov

Publikováno v: Physical Review C
Physical Review C, American Physical Society, 2017, 95 (5), pp.055207. ⟨10.1103/PhysRevC.95.055207⟩
Phys.Rev.C
Phys.Rev.C, 2017, 95 (5), pp.055207. 〈10.1103/PhysRevC.95.055207〉
Phys.Rev.C, 2017, 95 (5), pp.055207. ⟨10.1103/PhysRevC.95.055207⟩

The differential cross section for elastic scattering of protons on electrons at rest is calculated taking into account the QED radiative corrections to the leptonic part of interaction. These model-independent radiative corrections arise due to emis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8e0c111bf300ae182680a44f778df98
https://hal.archives-ouvertes.fr/hal-01554288

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