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Page 1
First measurement of the helicity asymmetry for γp → pπ0 in the resonance region.
Gottschall M, Anisovich AV, Bantes B, Bayadilov D, Beck R, Bichow M, Böse S, Brinkmann KT, Challand T, Crede V, Dietz F, Dutz H, Eberhardt H, Elsner D, Ewald R, Fornet-Ponse K, Friedrich S, Frommberger F, Funke Ch, Gridnev A, Grüner M, Gutz E, Hammann Ch, Hannappel J, Hartmann J, Hillert W, Hoffmeister P, Honisch Ch, Jaegle I, Kaiser D, Kalinowsky H, Kammer S, Keshelashvili I, Klein F, Klempt E, Koop K, Krusche B, Kube M, Lang M, Lopatin I, Maghrbi Y, Makonyi K, Metag V, Meyer W, Müller J, Nanova M, Nikonov V, Novotny R, Piontek D, Reicherz G, Rostomyan T, Sarantsev A, Schaepe S, Schmidt Ch, Schmieden H, Schmitz R, Seifen T, Sokhoyan V, Thiel A, Thoma U, Urban M, van Pee H, Walther D, Wendel Ch, Wiedner U, Wilson A, Winnebeck A; CBELSA/TAPS Collaboration. Gottschall M, et al. Among authors: keshelashvili i. Phys Rev Lett. 2014 Jan 10;112(1):012003. doi: 10.1103/PhysRevLett.112.012003. Epub 2014 Jan 10. Phys Rev Lett. 2014. PMID: 24483889
Well-established nucleon resonances revisited by double-polarization measurements.
Thiel A, Anisovich AV, Bayadilov D, Bantes B, Beck R, Beloglazov Y, Bichow M, Böse S, Brinkmann KT, Challand T, Crede V, Dietz F, Drexler P, Dutz H, Eberhardt H, Elsner D, Ewald R, Fornet-Ponse K, Friedrich S, Frommberger F, Funke Ch, Gottschall M, Grüner M, Gutz E, Hammann Ch, Hannappel J, Hartmann J, Hillert W, Hoffmeister P, Honisch Ch, Jaegle I, Jürgensen I, Kaiser D, Kalinowsky H, Kalischewski F, Kammer S, Keshelashvili I, Kleber V, Klein F, Klempt E, Krusche B, Lang M, Lopatin I, Maghrbi Y, Makonyi K, Metag V, Meyer W, Müller J, Nanova M, Nikonov V, Novotny R, Piontek D, Reicherz G, Sarantsev A, Schmidt Ch, Schmieden H, Seifen T, Sokhoyan V, Sumachev V, Thoma U, Vanpee H, Walther D, Wendel Ch, Wiedner U, Wilson A, Winnebeck A, Wunderlich Y; CBELSA/TAPS Collaboration. Thiel A, et al. Among authors: keshelashvili i. Phys Rev Lett. 2012 Sep 7;109(10):102001. doi: 10.1103/PhysRevLett.109.102001. Epub 2012 Sep 5. Phys Rev Lett. 2012. PMID: 23005280
N(1520) 3/2(-) helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions.
Hartmann J, Dutz H, Anisovich AV, Bayadilov D, Beck R, Becker M, Beloglazov Y, Berlin A, Bichow M, Böse S, Brinkmann KT, Crede V, Dieterle M, Eberhardt H, Elsner D, Fornet-Ponse K, Friedrich S, Frommberger F, Funke Ch, Gottschall M, Gridnev A, Grüner M, Gutz E, Hammann Ch, Hannappel J, Hannen V, Herick J, Hillert W, Hoffmeister P, Honisch Ch, Jahn O, Jude T, Käser A, Kaiser D, Kalinowsky H, Kalischewski F, Klassen P, Keshelashvili I, Klein F, Klempt E, Koop K, Krusche B, Kube M, Lang M, Lopatin I, Makonyi K, Messi F, Metag V, Meyer W, Müller J, Nanova M, Nikonov V, Novinski D, Novotny R, Piontek D, Rosenbaum C, Roth B, Reicherz G, Rostomyan T, Sarantsev A, Schmidt Ch, Schmieden H, Schmitz R, Seifen T, Sokhoyan V, Thämer P, Thiel A, Thoma U, Urban M, van Pee H, Walther D, Wendel Ch, Wiedner U, Wilson A, Winnebeck A, Witthauer L, Wunderlich Y; CBELSA/TAPS Collaboration. Hartmann J, et al. Among authors: keshelashvili i. Phys Rev Lett. 2014 Aug 8;113(6):062001. doi: 10.1103/PhysRevLett.113.062001. Epub 2014 Aug 4. Phys Rev Lett. 2014. PMID: 25148317
Observation of the pη^{'} Cusp in the New Precise Beam Asymmetry Σ Data for γp→pη.
Afzal F, Wunderlich Y, Anisovich AV, Bayadilov D, Beck R, Becker M, Blanke E, Brinkmann KT, Ciupka S, Crede V, Dieterle M, Dutz H, Elsner D, Friedrich S, Frommberger F, Gridnev A, Gottschall M, Grüner M, Gutz E, Hammann C, Hannappel J, Hartmann J, Hillert W, Hoff J, Hoffmeister P, Honisch C, Jude T, Kalinowsky H, Kalischewski F, Keshelashvili I, Klassen P, Klein F, Klempt E, Koop K, Kroenert P, Krusche B, Lang M, Lopatin I, Mahlberg P, Meißner UG, Messi F, Metag V, Meyer W, Mitlasóczki B, Müller J, Müllers J, Nanova M, Nikonov K, Nikonov V, Novinskiy V, Novotny R, Piontek D, Reicherz G, Richter L, Rönchen D, Rostomyan T, Salisbury B, Sarantsev A, Schaab D, Schmidt C, Schmieden H, Schultes J, Seifen T, Sokhoyan V, Sowa C, Spieker K, Stausberg N, Thiel A, Thoma U, Triffterer T, Urban M, Urff G, van Pee H, Walther D, Wendel C, Wiedner U, Wilson A, Winnebeck A, Witthauer L; CBELSA/TAPS Collaboration. Afzal F, et al. Among authors: keshelashvili i. Phys Rev Lett. 2020 Oct 9;125(15):152002. doi: 10.1103/PhysRevLett.125.152002. Phys Rev Lett. 2020. PMID: 33095637
Measurement of the helicity asymmetry E for the reaction γ p → π 0 p : The CBELSA/TAPS Collaboration.
Gottschall M, Afzal F, Anisovich AV, Bayadilov D, Beck R, Bichow M, Brinkmann KT, Crede V, Dieterle M, Dietz F, Dutz H, Eberhardt H, Elsner D, Ewald R, Fornet-Ponse K, Friedrich S, Frommberger F, Gridnev A, Grüner M, Gutz E, Hammann C, Hannappel J, Hartmann J, Hillert W, Hoffmeister P, Honisch C, Jude T, Kammer S, Kalinowsky H, Keshelashvili I, Klassen P, Klein F, Klempt E, Koop K, Krusche B, Kube M, Lang M, Lopatin I, Mahlberg P, Makonyi K, Metag V, Meyer W, Müller J, Müllers J, Nanova M, Nikonov V, Novotny R, Piontek D, Reicherz G, Rostomyan T, Sarantsev A, Schmidt C, Schmieden H, Seifen T, Sokhoyan V, Spieker K, Thiel A, Thoma U, Urban M, Pee HV, Walther D, Wendel C, Werthmüller D, Wiedner U, Wilson A, Winnebeck A, Witthauer L, Wunderlich Y. Gottschall M, et al. Among authors: keshelashvili i. Eur Phys J A Hadron Nucl. 2021;57(1):40. doi: 10.1140/epja/s10050-020-00334-2. Epub 2021 Jan 28. Eur Phys J A Hadron Nucl. 2021. PMID: 33551676 Free PMC article.
Thiel et al. reply:
Thiel A, Anisovich AV, Bayadilov D, Bantes B, Beck R, Beloglazov Y, Bichow M, Böse S, Brinkmann KT, Challand T, Crede V, Dietz F, Drexler P, Dutz H, Eberhardt H, Elsner D, Ewald R, Fornet-Ponse K, Friedrich S, Frommberger F, Funke Ch, Gottschall M, Grüner M, Gutz E, Hammann Ch, Hannappel J, Hartmann J, Hillert W, Hoffmeister P, Honisch Ch, Jaegle I, Jürgensen I, Kaiser D, Kalinowsky H, Kalischewski F, Kammer S, Keshelashvili I, Kleber V, Klein F, Klempt E, Krusche B, Lang M, Lopatin I, Maghrbi Y, Makonyi K, Metag V, Meyer W, Müller J, Nanova M, Nikonov V, Novotny R, Piontek D, Reicherz G, Sarantsev A, Schmidt Ch, Schmieden H, Seifen T, Sokhoyan V, Sumachev V, Thoma U, vanPee H, Walther D, Wendel Ch, Wiedner U, Wilson A, Winnebeck A, Wunderlich Y; CBELSA/TAPS Collaboration. Thiel A, et al. Among authors: keshelashvili i. Phys Rev Lett. 2013 Apr 19;110(16):169102. doi: 10.1103/PhysRevLett.110.169102. Epub 2013 Apr 19. Phys Rev Lett. 2013. PMID: 23679652 No abstract available.
Narrow structure in the excitation function of η photoproduction off the neutron.
Werthmüller D, Witthauer L, Keshelashvili I, Aguar-Bartolomé P, Ahrens J, Annand JR, Arends HJ, Bantawa K, Beck R, Bekrenev V, Braghieri A, Branford D, Briscoe WJ, Brudvik J, Cherepnya S, Demissie B, Dieterle M, Downie EJ, Drexler P, Fil'kov LV, Fix A, Glazier DI, Hamilton D, Heid E, Hornidge D, Howdle D, Huber GM, Jaegle I, Jahn O, Jude TC, Käser A, Kashevarov VL, Kondratiev R, Korolija M, Kruglov SP, Krusche B, Kulbardis A, Lisin V, Livingston K, MacGregor IJ, Maghrbi Y, Mancell J, Manley DM, Marinides Z, Martinez M, McGeorge JC, McNicoll EF, Metag V, Middleton DG, Mushkarenkov A, Nefkens BM, Nikolaev A, Novotny R, Oberle M, Ostrick M, Oussena B, Pedroni P, Pheron F, Polonski A, Prakhov SN, Robinson J, Rosner G, Rostomyan T, Schumann S, Sikora MH, Sober D, Starostin A, Supek I, Thiel M, Thomas A, Unverzagt M, Watts DP; Crystal Ball/TAPS experiment at MAMI, A2 Collaboration. Werthmüller D, et al. Among authors: keshelashvili i. Phys Rev Lett. 2013 Dec 6;111(23):232001. doi: 10.1103/PhysRevLett.111.232001. Epub 2013 Dec 4. Phys Rev Lett. 2013. PMID: 24476257 Free article.
Measurement of the 1H(γ, p)π0 reaction using a novel nucleon spin polarimeter.
Sikora MH, Watts DP, Glazier DI, Aguar-Bartolomé P, Akasoy LK, Annand JR, Arends HJ, Bantawa K, Beck R, Bekrenev VS, Berghäuser H, Braghieri A, Branford D, Briscoe WJ, Brudvik J, Cherepnya S, Codling RF, Demissie BT, Downie EJ, Drexler P, Fil'kov LV, Freehart B, Gregor R, Hamilton D, Heid E, Hornidge D, Howdle DA, Jaegle I, Jahn O, Jude TC, Kashevarov VL, Keshelashvili I, Kondratiev R, Korolija M, Kotulla M, Koulbardis AA, Kruglov SP, Krusche B, Lisin V, Livingston K, MacGregor IJ, Maghrbi Y, Manley DM, Marinides Z, Martinez M, McGeorge JC, McKinnon B, McNicoll EF, Mekterovic D, Metag V, Micanovic S, Middleton DG, Mushkarenkov A, Nefkens BM, Nikolaev A, Novotny R, Ostrick M, Otte PB, Oussena B, Pedroni P, Pheron F, Polonski A, Prakhov S, Robinson J, Rosner G, Rostomyan T, Schumann S, Sober DI, Starostin A, Strakovsky II, Suarez IM, Supek I, Thiel M, Thomas A, Unverzagt M, Werthmüller D, Workman RL, Zamboni I, Zehr F; (A2 Collaboration at MAMI). Sikora MH, et al. Among authors: keshelashvili i. Phys Rev Lett. 2014 Jan 17;112(2):022501. doi: 10.1103/PhysRevLett.112.022501. Epub 2014 Jan 15. Phys Rev Lett. 2014. PMID: 24484003
Photoproduction of π0 mesons off neutrons in the nucleon resonance region.
Dieterle M, Keshelashvili I, Ahrens J, Annand JR, Arends HJ, Bantawa K, Bartolome PA, Beck R, Bekrenev V, Braghieri A, Branford D, Briscoe WJ, Brudvik J, Cherepnya S, Demissie B, Downie EJ, Drexler P, Fil'kov LV, Fix A, Glazier DI, Hamilton D, Heid E, Hornidge D, Howdle D, Huber GM, Jaegle I, Jahn O, Jude TC, Käser A, Kashevarov VL, Kondratiev R, Korolija M, Kruglov SP, Krusche B, Kulbardis A, Lisin V, Livingston K, MacGregor IJ, Maghrbi Y, Mancell J, Manley DM, Marinides Z, Martinez M, McGeorge JC, McNicoll E, Mekterovic D, Metag V, Micanovic S, Middleton DG, Mushkarenkov A, Nefkens BM, Nikolaev A, Novotny R, Oberle M, Ostrick M, Oussena B, Pedroni P, Pheron F, Polonski A, Prakhov SN, Robinson J, Rosner G, Rostomyan T, Schumann S, Sikora MH, Sober D, Starostin A, Supek I, Thiel M, Thomas A, Unverzagt M, Watts DP, Werthmüller D, Witthauer L; Crystal Ball/TAPS experiment at MAMI, A2 Collaboration. Dieterle M, et al. Among authors: keshelashvili i. Phys Rev Lett. 2014 Apr 11;112(14):142001. doi: 10.1103/PhysRevLett.112.142001. Epub 2014 Apr 8. Phys Rev Lett. 2014. PMID: 24765945
Measurement of the transverse target and beam-target asymmetries in η meson photoproduction at MAMI.
Akondi CS, Annand JR, Arends HJ, Beck R, Bernstein A, Borisov N, Braghieri A, Briscoe WJ, Cherepnya S, Collicott C, Costanza S, Downie EJ, Dieterle M, Fix A, Fil'kov LV, Garni S, Glazier DI, Gradl W, Gurevich G, Hall Barrientos P, Hamilton D, Hornidge D, Howdle D, Huber GM, Kashevarov VL, Keshelashvili I, Kondratiev R, Korolija M, Krusche B, Lazarev A, Lisin V, Livingston K, MacGregor IJ, Mancel J, Manley DM, Martel P, McNicoll EF, Meyer W, Middleton D, Miskimen R, Mushkarenkov A, Nefkens BM, Neganov A, Nikolaev A, Oberle M, Ostrick M, Ortega H, Ott P, Otte PB, Oussena B, Pedroni P, Polonski A, Polyanski VV, Prakhov S, Reicherz G, Rostomyan T, Sarty A, Schumann S, Steffen O, Strakovsky II, Strub T, Supek I, Tiator L, Thomas A, Unverzagt M, Usov YA, Watts DP, Werthmüller D, Witthauer L, Wolfes M; A2 Collaboration at MAMI. Akondi CS, et al. Among authors: keshelashvili i. Phys Rev Lett. 2014 Sep 5;113(10):102001. doi: 10.1103/PhysRevLett.113.102001. Epub 2014 Sep 4. Phys Rev Lett. 2014. PMID: 25238349
23 results