Measurement of polarization observables T , P , and H in π 0 and η photoproduction off quasi-free nucleons.

التفاصيل البيبلوغرافية
العنوان:	Measurement of polarization observables T , P , and H in π 0 and η photoproduction off quasi-free nucleons.
المؤلفون:	Jermann N; Department of Physics, University of Basel, Basel, Switzerland.; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Krusche B; Department of Physics, University of Basel, Basel, Switzerland., Metag V; II. Physikalisches Institut, University of Giessen, Giessen, Germany., Afzal F; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Badea M; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Beck R; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Bielefeldt P; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Bieling J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Biroth M; Institut für Kernphysik, University of Mainz, Mainz, Germany., Blanke E; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Borisov N; Joint Institute for Nuclear Research, Dubna, Russia., Bornstein M; Physikalisches Institut, University of Bonn, Bonn, Germany., Brinkmann KT; II. Physikalisches Institut, University of Giessen, Giessen, Germany., Ciupka S; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Crede V; Department of Physics, Florida State University, Tallahassee, USA., Dolzhikov A; Joint Institute for Nuclear Research, Dubna, Russia., Drexler P; Institut für Kernphysik, University of Mainz, Mainz, Germany., Dutz H; Physikalisches Institut, University of Bonn, Bonn, Germany., Elsner D; Physikalisches Institut, University of Bonn, Bonn, Germany., Fedorov A; Joint Institute for Nuclear Research, Dubna, Russia., Frommberger F; Physikalisches Institut, University of Bonn, Bonn, Germany., Gardner S; SUPA School of Physics and Astronomy, University of Glasgow, Glasgow, UK., Ghosal D; Department of Physics, University of Basel, Basel, Switzerland.; Present Address: resent address: University of Liverpool, Liverpool, UK., Goertz S; Physikalisches Institut, University of Bonn, Bonn, Germany., Gorodnov I; Joint Institute for Nuclear Research, Dubna, Russia., Grüner M; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Hammann C; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Hartmann J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Hillert W; Physikalisches Institut, University of Bonn, Bonn, Germany.; Present Address: resent address: University of Hamburg, Hamburg, Germany., Hoffmeister P; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Honisch C; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Jude TC; Physikalisches Institut, University of Bonn, Bonn, Germany., Kalischewski F; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Ketzer B; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Klassen P; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Klein F; Physikalisches Institut, University of Bonn, Bonn, Germany., Klempt E; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Knaust J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Kolanus N; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Kreit J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Krönert P; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Lang M; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Lazarev AB; Joint Institute for Nuclear Research, Dubna, Russia., Livingston K; SUPA School of Physics and Astronomy, University of Glasgow, Glasgow, UK., Lutterer S; Department of Physics, University of Basel, Basel, Switzerland.; Present Address: resent address: Ruhr University Bochum, Bochum, Germany., Mahlberg P; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Meier C; Department of Physics, University of Basel, Basel, Switzerland., Meyer W; Institut für Experimentalphysik I, Ruhr University Bochum, Bochum, Germany., Mitlasoczki B; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Müllers J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Nanova M; II. Physikalisches Institut, University of Giessen, Giessen, Germany., Neganov A; Joint Institute for Nuclear Research, Dubna, Russia., Nikonov K; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Noël JF; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Ostrick M; Institut für Kernphysik, University of Mainz, Mainz, Germany., Ottnad J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Otto B; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Penman G; SUPA School of Physics and Astronomy, University of Glasgow, Glasgow, UK., Poller T; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Proft D; Physikalisches Institut, University of Bonn, Bonn, Germany., Reicherz G; Institut für Experimentalphysik I, Ruhr University Bochum, Bochum, Germany., Reinartz N; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Richter L; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Runkel S; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany.; Physikalisches Institut, University of Bonn, Bonn, Germany., Salisbury B; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Sarantsev AV; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Schaab D; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Schmidt C; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Schmieden H; Physikalisches Institut, University of Bonn, Bonn, Germany., Schultes J; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Seifen T; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Spieker K; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Stausberg N; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Steinacher M; Department of Physics, University of Basel, Basel, Switzerland., Taubert F; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Thiel A; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Thoma U; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Thomas A; Institut für Kernphysik, University of Mainz, Mainz, Germany., Urban M; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Urff G; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Usov Y; Joint Institute for Nuclear Research, Dubna, Russia., van Pee H; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Wang YC; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Wendel C; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany., Wiedner U; Institut für Experimentalphysik I, Ruhr University Bochum, Bochum, Germany., Wunderlich Y; Helmholtz-Institut für Strahlen-und Kernphysik, University of Bonn, Bonn, Germany.
مؤلفون مشاركون:	CBELSA/TAPS Collaboration
المصدر:	The European physical journal. A, Hadrons and nuclei [Eur Phys J A Hadron Nucl] 2023; Vol. 59 (10), pp. 232. Date of Electronic Publication: 2023 Oct 17.
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: EDP Sciences Country of Publication: France NLM ID: 101769254 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1434-601X (Electronic) Linking ISSN: 14346001 NLM ISO Abbreviation: Eur Phys J A Hadron Nucl Subsets: PubMed not MEDLINE
أسماء مطبوعة:	Original Publication: [Les Ulis, France] : Berlin ; New York : EDP Sciences ; Springer, ©1998-
مستخلص:	The target asymmetry T , recoil asymmetry P , and beam-target double polarization observable H were determined in exclusive π 0 and η photoproduction off quasi-free protons and, for the first time, off quasi-free neutrons. The experiment was performed at the electron stretcher accelerator ELSA in Bonn, Germany, with the Crystal Barrel/TAPS detector setup, using a linearly polarized photon beam and a transversely polarized deuterated butanol target. Effects from the Fermi motion of the nucleons within deuterium were removed by a full kinematic reconstruction of the final state invariant mass. A comparison of the data obtained on the proton and on the neutron provides new insight into the isospin structure of the electromagnetic excitation of the nucleon. Earlier measurements of polarization observables in the γ p → π 0 p and γ p → η p reactions are confirmed. The data obtained on the neutron are of particular relevance for clarifying the origin of the narrow structure in the η n system at W = 1.68 GeV . A comparison with recent partial wave analyses favors the interpretation of this structure as arising from interference of the S 11 ( 1535 ) and S 11 ( 1650 ) resonances within the S 11 -partial wave. (© The Author(s) 2023.)
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تواريخ الأحداث:	Date Created: 20231020 Latest Revision: 20231123
رمز التحديث:	20231123
مُعرف محوري في PubMed:	PMC10582157
DOI:	10.1140/epja/s10050-023-01134-0
PMID:	37860634
قاعدة البيانات:	MEDLINE

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تدمد:	1434-601X
DOI:	10.1140/epja/s10050-023-01134-0