Measurement of the Generalized Polarizabilities of the Proton at Intermediate $Q^2$

Autor: J. Beričič, Y. Kohl, A. Blomberg, Patrick Achenbach, L. Nungesser, Jan C. Bernauer, Simon Širca, F. Schulz, A. Tyukin, M. Benali, M. O. Distler, Nikos Sparveris, D. G. Middleton, Concettina Sfienti, Damir Bosnar, L. Debenjak, Michael Paolone, M. Mihovilovic, A. C. Weber, L. Correa, M. Schoth, B. S. Schlimme, E. J. Downie, M. Weinriefer, H. Fonvieille, Anselm Esser, U. Müller, Harald Merkel, Ivica Friščić, Michaela Thiel, S. Kegel, J. Pochodzalla, S. Štajner, Mihael Makek, S. Sánchez Majos, C. Ayerbe Gayoso, A. G. Denig, R. Böhm

Publikováno v: Phys.Rev.C
Phys.Rev.C, 2021, 103 (2), pp.025205. ⟨10.1103/PhysRevC.103.025205⟩
Physical Review C
Physical Review C, American Physical Society, 2021, 103 (2), pp.025205. ⟨10.1103/PhysRevC.103.025205⟩

Background: Generalized polarizabilities (GPs) are important observables to describe the nucleon structure, and measurements of these observables are still scarce. Purpose: This paper presents details of a virtual Compton scattering (VCS) experiment,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fcaf6ce25f1a02a3253ad160ac86a14

Cross section for γn→π0n measured at the Mainz A2 experiment

Autor: K. Livingston, S. Lutterer, S. Gardner, N. S. Borisov, M. Unverzagt, V. V. Kulikov, H. J. Arends, A. B. Lazarev, A. Neiser, Alfred Švarc, F. Cividini, A. Braghieri, F. Afzal, D. G. Middleton, B. Oussena, C. Collicott, D. P. Watts, K. Spieker, K. Bantawa, M. Bashkanov, R. A. Miskimen, M. Ostrick, S. Kay, C. Sfienti, V. E. Tarasov, Patrick Achenbach, Yu. A. Usov, G. M. Huber, A. E. Kudryavtsev, A. Käser, O. Steffen, P. Aguar-Bartolomé, V. L. Kashevarov, A. G. Denig, E. J. Downie, N. K. Walford, J. Wettig, E. Mornacchi, A. Thiel, J. Stahov, S. Fegan, Durga Paudyal, J. C. McGeorge, Nicholas Zachariou, V. Sokhoyan, I. J. D. MacGregor, M. I. Ferretti Bondy, M. A. Martemianov, D. Gurevich, D. Hornidge, D. Ghosal, S. Wagner, M. Wolfes, Anthony W. Thomas, D. I. Glazier, Guy Ron, Z. Ahmed, Susanna Costanza, Michaela Thiel, W. J. Briscoe, A. Powell, M. Günther, L. Tiator, I. I. Strakovsky, A. N. Mushkarenkov, S. A. Bulychjov, D. M. Manley, Lena Heijkenskjöld, P. P. Martel, R. Omerović, M. Korolija, R. Beck, C. Mullen, J. R. M. Annand, D. Werthmüller, M. Biroth, M. Hadžimehmedović, P. B. Otte, A. B. Neganov, P. Pedroni, W. Gradl, S. N. Prakhov, B. Krusche, P. Drexler, H. Osmanović, T. Rostomyan, I. Supek, I. Gorodnov, Ron L. Workman, Roderick M. Macrae, S. Abt, C. S. Akondi, A. J. Sarty

Publikováno v: Physical Review C. 100

The γ n → π 0 n differential cross section evaluated for 27 energy bins span the photon-energy range 290–813 MeV ( W = 1.195 –1.553 GeV) and the pion c.m. polar production angles, ranging from 18 ∘ to 162 ∘ , making use of model-dependent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d1b059748bafc732f76b9f43b571e12
https://doi.org/10.1103/physrevc.100.065205

Experimental study of the $ \gamma p \rightarrow K^{0}\Sigma^{+}$, $ \gamma n \rightarrow K^{0} \Lambda$, and $ \gamma n \rightarrow K^{0} \Sigma^{0}$ reactions at the Mainz Microtron

Autor: Anthony W. Thomas, D. I. Glazier, A. Mushkarenkov, M. Biroth, B. Krusche, H. J. Arends, I. Gorodnov, S. Abt, C. S. Akondi, E. J. Downie, Th. Strub, R. Beck, M. Unverzagt, A. J. Sarty, V. L. Kashevarov, M. Bashkanov, F. Cividini, D. G. Middleton, D. Gurevich, M. Wolfes, David Manley, Yu. A. Usov, O. Steffen, M. Ostrick, A. B. Neganov, Concettina Sfienti, Jrm Annand, W. Gradl, E. Mornacchi, M. Käser, S. Kay, C. Mullen, J. C. McGeorge, Igor Strakovsky, Lena Heijkenskjöld, P. Aguar-Bartolomé, I. J. D. MacGregor, A. Powell, A. Braghieri, J. Wettig, N. K. Walford, A. Thiel, M. Günther, M. I. Ferretti Bondy, A. Denig, P. P. Martel, M. Oberle, S. Costanza, S. N. Prakhov, S. Wagner, G. Ron, A. Lazarev, M. Thiel, D. Hornidge, M. Korolija, I. Supek, Lilian Witthauer, D. Werthmüller, A. Neiser, K. Spieker, W. J. Briscoe, F. Afzal, K. Livingston, S. Lutterer, S. Gardner, M. Dieterle, N. S. Borisov, P. Drexler, P. B. Otte, P. Pedroni, V. Sokhoyan, T. Rostomyan, B. Oussena, C. Collicott, D. P. Watts, K. Bantawa, Z. Ahmed, Patrick Achenbach, R. Miskimen, D. Paudyal, G. M. Huber

Publikováno v: The European Physical Journal A. 55

This work measured $d\sigma/d\Omega$ for neutral kaon photoproduction reactions from threshold up to a c.m.\ energy of 1855MeV, focussing specifically on the $\gamma p\rightarrow K^0\Sigma^+$, $\gamma n\rightarrow K^0\Lambda$, and $\gamma n\rightarro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85e1baee735bcf8be8cb8ecb2a128872
https://doi.org/10.1140/epja/i2019-12924-x

Near-threshold $\pi^-$ photoproduction on the deuteron

Autor: B. Seitz, K. Hamilton, Michael A. Kovash, A. E. Kudryavtsev, M. Meshkian, Vadim Lensky, I. I. Strakovsky, B. Oussena, Kurt Hansen, D. O'donnell, M. F. Taragin, M. F. Preston, R. Al Jebali, Laura Clark, Lennart Isaksson, V. E. Tarasov, W. J. Briscoe, S. Lipschutz, F. Cividini, L.S. Myers, K. England, D. I. Glazier, Mikael Lundin, Bent Schröder, D. G. Middleton, E. J. Downie, J. R. M. Annand, J. Brudvik, Gerald Feldman, Grant O'Rielly, B. Strandberg, Kevin Fissum

The first experimental investigation of the near-threshold cross section for incoherent $\pi^-$ photoproduction on the deuteron $\gamma$ d -> $\pi^-$ pp is presented. The experimental technique involved detection of the ~131 MeV gamma ray resulting f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a05889c99d7cdd7276eaf4678aebe13
http://arxiv.org/abs/1812.03023

Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead

Autor: R. A. Miskimen, A. G. Denig, Durga Paudyal, M. Wolfes, I. Keshelashvili, Yu. A. Usov, O. Steffen, K. Spieker, P. Pedroni, Susanna Costanza, P. Aguar-Bartolomé, Concettina Sfienti, A. N. Mushkarenkov, M. Ostrick, D. G. Middleton, M. Günther, S. Garni, A. Powell, I. Supek, A. Käser, R. Beck, I. Gorodnov, M. Unverzagt, V. L. Kashevarov, F. Cividini, Roderick M. Macrae, L. V. Fil'kov, P. Adlarson, M. Oberle, S. Abt, E. J. Downie, Patrick Achenbach, D. P. Watts, S. Cherepnya, A. J. Sarty, K. Bantawa, G. M. Huber, Z. Ahmed, S. Kay, I. I. Strakovsky, T. Rostomyan, K. Livingston, S. Lutterer, B. Strandberg, S. Gardner, N. S. Borisov, C. Mullen, Guy Ron, D. I. Glazier, S. Wagner, H. J. Arends, W. J. Briscoe, A. B. Lazarev, Michaela Thiel, A. Neiser, A. Fix, A. Braghieri, Th. Strub, P. Drexler, F. Afzal, A. B. Neganov, Nicholas Zachariou, W. Gradl, J. Wettig, J. C. McGeorge, V. Sokhoyan, P. P. Martel, J. R. M. Annand, D. Hornidge, E. Mornacchi, I. J. D. MacGregor, M. Korolija, David Manley, N. K. Walford, B. Krusche, K. Altangerel, E. Rickert, M. Biroth, P. B. Otte, R. Kondratiev, G. M. Gurevich, S. N. Prakhov, Lilian Witthauer, M. Dieterle, Lena Heijkenskjöld, M. I. Ferretti Bondy, Andy Thomas, A. Thiel, D. Werthmüller, C. Collicott, M. Bashkanov

Publikováno v: Physics Letters B, Vol 802, Iss, Pp-(2020)

The beam-helicity asymmetry was measured, for the first time, in photoproduction of $\pi^{0}\eta$ pairs on carbon, aluminum, and lead, with the A2 experimental setup at MAMI. The results are compared to an earlier measurement on a free proton and to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0df1e3cf44e9c93e748312ce8c63959
https://doi.org/10.1016/j.physletb.2020.135243