Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer
K+Λ(1405) photoproduction has been studied at the BGOOD experiment via the all neutral decay, Λ(1405)→Σ0π0. The unique BGOOD experimental setup allows both the cross section and Λ(1405) invariant mass distribution (line shape) to be measured over a broad K+ polar angle range, extending to extreme fo...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-10-01
|
| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269322005093 |
| _version_ | 1797998957429784576 |
|---|---|
| author | G. Scheluchin T.C. Jude S. Alef P. Bauer D. Bayadilov R. Beck A. Braghieri P.L. Cole D. Elsner R. Di Salvo A. Fantini O. Freyermuth F. Frommberger F. Ghio A. Gridnev D. Hammann J. Hannappel K. Kohl N. Kozlenko A. Lapik P. Levi Sandri V. Lisin G. Mandaglio R. Messi D. Moricciani A. Mushkarenkov V. Nedorezov D. Novinskiy P. Pedroni A. Polonskiy B.-E. Reitz M. Romaniuk H. Schmieden V. Sumachev V. Tarakanov |
| author_facet | G. Scheluchin T.C. Jude S. Alef P. Bauer D. Bayadilov R. Beck A. Braghieri P.L. Cole D. Elsner R. Di Salvo A. Fantini O. Freyermuth F. Frommberger F. Ghio A. Gridnev D. Hammann J. Hannappel K. Kohl N. Kozlenko A. Lapik P. Levi Sandri V. Lisin G. Mandaglio R. Messi D. Moricciani A. Mushkarenkov V. Nedorezov D. Novinskiy P. Pedroni A. Polonskiy B.-E. Reitz M. Romaniuk H. Schmieden V. Sumachev V. Tarakanov |
| author_sort | G. Scheluchin |
| collection | DOAJ |
| description | K+Λ(1405) photoproduction has been studied at the BGOOD experiment via the all neutral decay, Λ(1405)→Σ0π0. The unique BGOOD experimental setup allows both the cross section and Λ(1405) invariant mass distribution (line shape) to be measured over a broad K+ polar angle range, extending to extreme forward K+ angles unattainable at previous experiments.Evidence is provided for the role of a triangle singularity driven by the N⁎(2030) resonance, which appears to contribute significantly to K+Λ(1405) photoproduction. This is observed in the integrated cross section which was determined with unprecedented energy resolution and supported by the angular distributions. The measured line shape is also in agreement with the previous results of CLAS and ANKE, and is consistent with two poles derived in χPT based models. |
| first_indexed | 2024-04-11T10:57:00Z |
| format | Article |
| id | doaj.art-f8b6115732544014852ba7ef951fc274 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-11T10:57:00Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-f8b6115732544014852ba7ef951fc2742022-12-22T04:28:44ZengElsevierPhysics Letters B0370-26932022-10-01833137375Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transferG. Scheluchin0T.C. Jude1S. Alef2P. Bauer3D. Bayadilov4R. Beck5A. Braghieri6P.L. Cole7D. Elsner8R. Di Salvo9A. Fantini10O. Freyermuth11F. Frommberger12F. Ghio13A. Gridnev14D. Hammann15J. Hannappel16K. Kohl17N. Kozlenko18A. Lapik19P. Levi Sandri20V. Lisin21G. Mandaglio22R. Messi23D. Moricciani24A. Mushkarenkov25V. Nedorezov26D. Novinskiy27P. Pedroni28A. Polonskiy29B.-E. Reitz30M. Romaniuk31H. Schmieden32V. Sumachev33V. Tarakanov34Rheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, Germany; Corresponding author.Rheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Nußallee 14-16, 53115 Bonn, Germany; Petersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaRheinische Friedrich-Wilhelms-Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Nußallee 14-16, 53115 Bonn, GermanyINFN sezione di Pavia, Via Agostino Bassi, 6, 27100 Pavia, ItalyLamar University, Department of Physics, Beaumont, TX, 77710, USARheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyINFN Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133, Rome, ItalyINFN Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133, Rome, Italy; Università di Roma “Tor Vergata”, Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133, Rome, ItalyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyINFN sezione di Roma La Sapienza, P. le Aldo Moro 2, 00185, Rome, Italy; Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, ItalyPetersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyPetersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaRussian Academy of Sciences Institute for Nuclear Research, Prospekt 60-letiya Oktyabrya 7a, 117312, Moscow, RussiaINFN - Laboratori Nazionali di Frascati, Via E. Fermi 54, 00044, Frascati, ItalyRussian Academy of Sciences Institute for Nuclear Research, Prospekt 60-letiya Oktyabrya 7a, 117312, Moscow, RussiaINFN sezione Catania, 95129, Catania, Italy; Università degli Studi di Messina, Dipartimento MIFT, Via F. S. D'Alcontres 31, 98166, Messina, ItalyINFN Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133, Rome, Italy; Università di Roma “Tor Vergata”, Dipartimento di Fisica, Via della Ricerca Scientifica 1, 00133, Rome, ItalyINFN - Laboratori Nazionali di Frascati, Via E. Fermi 54, 00044, Frascati, ItalyRussian Academy of Sciences Institute for Nuclear Research, Prospekt 60-letiya Oktyabrya 7a, 117312, Moscow, RussiaRussian Academy of Sciences Institute for Nuclear Research, Prospekt 60-letiya Oktyabrya 7a, 117312, Moscow, RussiaPetersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaINFN sezione di Pavia, Via Agostino Bassi, 6, 27100 Pavia, ItalyRussian Academy of Sciences Institute for Nuclear Research, Prospekt 60-letiya Oktyabrya 7a, 117312, Moscow, RussiaRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyINFN Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133, Rome, Italy; Institute for Nuclear Research of NASU, 03028, Kyiv, UkraineRheinische Friedrich-Wilhelms-Universität Bonn, Physikalisches Institut, Nußallee 12, 53115 Bonn, GermanyPetersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaPetersburg Nuclear Physics Institute NRC “Kurchatov Institute”, Gatchina, Leningrad District, 188300, RussiaK+Λ(1405) photoproduction has been studied at the BGOOD experiment via the all neutral decay, Λ(1405)→Σ0π0. The unique BGOOD experimental setup allows both the cross section and Λ(1405) invariant mass distribution (line shape) to be measured over a broad K+ polar angle range, extending to extreme forward K+ angles unattainable at previous experiments.Evidence is provided for the role of a triangle singularity driven by the N⁎(2030) resonance, which appears to contribute significantly to K+Λ(1405) photoproduction. This is observed in the integrated cross section which was determined with unprecedented energy resolution and supported by the angular distributions. The measured line shape is also in agreement with the previous results of CLAS and ANKE, and is consistent with two poles derived in χPT based models.http://www.sciencedirect.com/science/article/pii/S0370269322005093Strangeness photoproductionΛ(1405)BGOOD |
| spellingShingle | G. Scheluchin T.C. Jude S. Alef P. Bauer D. Bayadilov R. Beck A. Braghieri P.L. Cole D. Elsner R. Di Salvo A. Fantini O. Freyermuth F. Frommberger F. Ghio A. Gridnev D. Hammann J. Hannappel K. Kohl N. Kozlenko A. Lapik P. Levi Sandri V. Lisin G. Mandaglio R. Messi D. Moricciani A. Mushkarenkov V. Nedorezov D. Novinskiy P. Pedroni A. Polonskiy B.-E. Reitz M. Romaniuk H. Schmieden V. Sumachev V. Tarakanov Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer Physics Letters B Strangeness photoproduction Λ(1405) BGOOD |
| title | Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer |
| title_full | Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer |
| title_fullStr | Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer |
| title_full_unstemmed | Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer |
| title_short | Photoproduction of K+Λ(1405)→K+π0Σ0 extending to forward angles and low momentum transfer |
| title_sort | photoproduction of k λ 1405 k π0σ0 extending to forward angles and low momentum transfer |
| topic | Strangeness photoproduction Λ(1405) BGOOD |
| url | http://www.sciencedirect.com/science/article/pii/S0370269322005093 |
| work_keys_str_mv | AT gscheluchin photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT tcjude photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT salef photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT pbauer photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT dbayadilov photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT rbeck photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT abraghieri photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT plcole photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT delsner photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT rdisalvo photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT afantini photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT ofreyermuth photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT ffrommberger photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT fghio photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT agridnev photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT dhammann photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT jhannappel photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT kkohl photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT nkozlenko photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT alapik photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT plevisandri photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT vlisin photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT gmandaglio photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT rmessi photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT dmoricciani photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT amushkarenkov photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT vnedorezov photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT dnovinskiy photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT ppedroni photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT apolonskiy photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT bereitz photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT mromaniuk photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT hschmieden photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT vsumachev photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer AT vtarakanov photoproductionofkl1405kp0s0extendingtoforwardanglesandlowmomentumtransfer |