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Page 1
Quasifree pi + production studied using the 12C( gamma, pi +n)11B reaction in the Delta (1232) resonance region.
MacKenzie JA, Branford D, Ahrens J, Annand JR, Beck R, Cross GE, Davinson T, Grabmayr P, Hall SJ, Harty PD, Hehl T, Johnstone DG, Kellie JD, Lamparter T, Liang M, MacGregor IJ, McGeorge JC, Owens RO, Sauer M, Schneider R, Shotter AC, Spaeth K, Woods PJ, Yau T. MacKenzie JA, et al. Among authors: ahrens j. Phys Rev C Nucl Phys. 1996 Jul;54(1):R6-R9. doi: 10.1103/physrevc.54.r6. Phys Rev C Nucl Phys. 1996. PMID: 9971365 No abstract available.
Total photoabsorption cross sections for 1H, 2H, and 3He from 200 to 800 MeV.
MacCormick M, Audit G, d'Hose N, Ghedira L, Isbert V V, Kerhoas S, Murphy LY, Tamas G, Wallace PA, Altieri S, Braghieri A, Pedroni P, Pinelli T, Ahrens J, Beck R, Annand JR, Crawford RA, Kellie JD, MacGregor IJ, Dolbilkin B, Zabrodin A. MacCormick M, et al. Among authors: ahrens j. Phys Rev C Nucl Phys. 1996 Jan;53(1):41-49. doi: 10.1103/physrevc.53.41. Phys Rev C Nucl Phys. 1996. PMID: 9970910 No abstract available.
In-medium properties of the D13(1520) nucleon resonance.
Krusche B, Ahrens J, Beck R, MacGregor IJ, McGeorge JC, Metag V, Ströher H. Krusche B, et al. Among authors: ahrens j. Phys Rev Lett. 2001 May 21;86(21):4764-7. doi: 10.1103/PhysRevLett.86.4764. Phys Rev Lett. 2001. PMID: 11384343 Free article.
Incoherent neutral pion photoproduction on 12C.
Tarbert CM, Watts DP, Aguar P, Ahrens J, Annand JR, Arends HJ, Beck R, Bekrenev V, Boillat B, Braghieri A, Branford D, Briscoe WJ, Brudvik J, Cherepnya S, Codling R, Downie EJ, Föhl K, Glazier DI, Grabmayr P, Gregor R, Heid E, Hornidge D, Jahn O, Kashevarov VL, Knezevic A, Kondratiev R, Korolija M, Kotulla M, Krambrich D, Krusche B, Lang M, Lisin V, Livingston K, Lugert S, Macgregor IJ, Manley DM, Martinez M, McGeorge JC, Mekterovic D, Metag V, Nefkens BM, Nikolaev A, Novotny R, Owens RO, Pedroni P, Polonski A, Prakhov SN, Price JW, Rosner G, Rost M, Rostomyan T, Schadmand S, Schumann S, Sober D, Starostin A, Supek I, Thomas A, Unverzagt M, Walcher T, Zehr F; Crystal Ball at MAMI Collaboration; A2 Collaboration. Tarbert CM, et al. Among authors: ahrens j. Phys Rev Lett. 2008 Apr 4;100(13):132301. doi: 10.1103/PhysRevLett.100.132301. Epub 2008 Apr 1. Phys Rev Lett. 2008. PMID: 18517938
Neutron polarizabilities investigated by quasifree Compton scattering from the deuteron.
Kossert K, Camen M, Wissmann F, Ahrens J, Annand JR, Arends HJ, Beck R, Caselotti G, Grabmayr P, Jahn O, Jennewein P, Levchuk MI, L'vov AI, McGeorge JC, Natter A, Olmos de León V, Petrun'kin VA, Rosner G, Schumacher M, Seitz B, Smend F, Thomas A, Weihofen W, Zapadtka F. Kossert K, et al. Among authors: ahrens j. Phys Rev Lett. 2002 Apr 22;88(16):162301. doi: 10.1103/PhysRevLett.88.162301. Epub 2002 Apr 8. Phys Rev Lett. 2002. PMID: 11955229
Helicity amplitudes A1/2 and A3/2 for the D13(1520) resonance obtained from the gamma-->p-->-->ppi(0) Reaction.
Ahrens J, Altieri S, Annand JR, Anton G, Arends HJ, Aulenbacher K, Beck R, Bradtke C, Braghieri A, Degrande N, D'Hose N, Drechsel D, Dutz H, Goertz S, Grabmayr P, Hansen K, Harmsen J, Von Harrach D, Hasegawa S, Hasegawa T, Heid E, Helbing K, Holvoet H, Van Hoorebeke L, Horikawa N, Iwata T, Jahn O, Jennewein P, Kageya T, Kamalov S, Kiel B, Klein F, Kondratiev R, Kossert K, Krimmer J, Lang M, Lannoy B, Leukel R, Lisin V, Matsuda T, McGeorge JC, Meier A, Menze D, Meyer W, Michel T, Naumann J, Panzeri A, Pedroni P, Pinelli T, Preobrajenski I, Radtke E, Reichert E, Reicherz G, Rohlof Ch, Rosner G, Ryckbosch D, Sauer M, Schoch B, Schumacher M, Seitz B, Speckner T, Takabayashi N, Tamas G, Thomas A, Tiator L, Van Vyver R, Wakai A, Weihofen W, Wissmann F, Zapadtka F, Zeitler G. Ahrens J, et al. Phys Rev Lett. 2002 Jun 10;88(23):232002. doi: 10.1103/PhysRevLett.88.232002. Epub 2002 May 24. Phys Rev Lett. 2002. PMID: 12059355
The reaction gammap-->pi0gamma'p and the magnetic dipole moment of the Delta+ 1232 resonance.
Kotulla M, Ahrens J, Annand JR, Beck R, Caselotti G, Fog LS, Hornidge D, Janssen S, Krusche B, McGeorge JC, McGregor IJ, Mengel K, Messchendorp JG, Metag V, Novotny R, Pfeiffer M, Rost M, Sack S, Sanderson R, Schadmand S, Watts DP. Kotulla M, et al. Among authors: ahrens j. Phys Rev Lett. 2002 Dec 30;89(27):272001. doi: 10.1103/PhysRevLett.89.272001. Epub 2002 Dec 16. Phys Rev Lett. 2002. PMID: 12513194
Test of low-energy theorems for 1H(--> gamma, pi(0))(H)in the threshold hegion.
Schmidt A, Achenbach P, Ahrens J, Arends HJ, Beck R, Bernstein AM, Hejny V, Kotulla M, Krusche B, Kuhr V, Leukel R, MacGregor IJ, McGeorge JC, Metag V, Olmos De León VM, Rambo F, Siodlaczek U, Ströher H, Walcher T, Weiss J, Wissmann F, Wolf M. Schmidt A, et al. Among authors: ahrens j. Phys Rev Lett. 2001 Dec 3;87(23):232501. doi: 10.1103/PhysRevLett.87.232501. Epub 2001 Nov 15. Phys Rev Lett. 2001. PMID: 11736448
In-medium modifications of the pipi interaction in photon-induced reactions.
Messchendorp JG, Janssen S, Kotulla M, Ahrens J, Annand JR, Beck R, Bloch F, Caselotti G, Fog L, Hornidge D, Krusche B, Langgärtner W, McGeorge JC, MacGregor IJ, Mengel K, Metag V, Novotny R, Owens RO, Pfeiffer M, Sack S, Sanderson R, Schadmand S. Messchendorp JG, et al. Among authors: ahrens j. Phys Rev Lett. 2002 Nov 25;89(22):222302. doi: 10.1103/PhysRevLett.89.222302. Epub 2002 Nov 8. Phys Rev Lett. 2002. PMID: 12485064
Helicity dependence of gammap --> Npi below 450 MeV and contribution to the Gerasimov-Drell-Hearn sum rule.
Ahrens J, Altieri S, Annand JR, Anton G, Arends H, Aulenbacher K, Beck R, Bradtke C, Braghieri A, Degrande N, d'Hose N, Dutz H, Goertz S, Grabmayr P, Hansen K, Harmsen J, von Harrach D, Hasegawa S, Hasegawa T, Heid E, Helbing K, Holvoet H, Van Hoorebeke L, Horikawa N, Iwata T, Jennewein P, Kageya T, Kiel B, Klein F, Kondratiev R, Kossert K, Krimmer J, Lang M, Lannoy B, Leukel R, Lisin V, Matsuda T, McGeorge JC, Meier A, Menze D, Meyer W, Michel T, Naumann J, Owens RO, Panzeri A, Pedroni P, Pinelli T, Preobrajenski I, Radtke E. Ahrens J, et al. Phys Rev Lett. 2000 Jun 26;84(26 Pt 1):5950-4. doi: 10.1103/PhysRevLett.84.5950. Phys Rev Lett. 2000. PMID: 10991096
263 results