- Záznam pochází z PubMed
Triangle Singularity as the Origin of the a_{1}(1420)
- Alexeev, G D
- Alexeev, M G
- Amoroso, A
- Andrieux, V
- Anosov, V
- Antoshkin, A
- Augsten, K
- Augustyniak, W
- Azevedo, C D R
- Badełek, B
- Balestra, F
- Ball, M
- Barth, J
- Beck, R
- Bedfer, Y
- Berenguer Antequera, J
- Bernhard, J
- Bodlak, M
- Bradamante, F
- Bressan, A
- Burtsev, V E
- Chang, W-C
- Chatterjee, C
- Chiosso, M
- Chumakov, A G
- Chung, S-U
- Cicuttin, A
- Correia, P M M
- Crespo, M L
- D'Ago, D
- Dalla Torre, S
- Dasgupta, S S
- Dasgupta, S
- Denisenko, I
- Denisov, O Yu
- Donskov, S V
- Doshita, N
- Dreisbach, Ch
-
Dünnweber, W
Autor Dünnweber, W Department of Physics, University of Aveiro, I3N, 3810-193 Aveiro, Portugal Institut für Experimentalphysik, Universität Bochum, 44780 Bochum, Germany Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany Physikalisches Institut, Universität Bonn, 53115 Bonn, Germany Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany CERN, 1211 Geneva 23, Switzerland Technical University in Liberec, 46117 Liberec, Czech Republic LIP, 1649-003 Lisbon, Portugal Institut für Kernphysik, Universität Mainz, 55099 Mainz, Germany University of Miyazaki, Miyazaki 889-2192, Japan Lebedev Physical Institute, 119991 Moscow, Russia Physik Department, Technische Universität München, 85748 Garching, Germany Nagoya University, 464 Nagoya, Japan Faculty of Mathematics and Physics, Charles University, 18000 Prague, Czech Republic Czech Technical University in Prague, 16636 Prague, Czech Republic State Scientific Center Institute for High Energy Physics of National Research Center "Kurchatov Institute," 142281 Protvino, Russia IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France Academia Sinica, Institute of Physics, Taipei 11529, Taiwan School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel Department of Physics, University of Trieste, 34127 Trieste, Italy Trieste Section of INFN, 34127 Trieste, Italy Department of Physics, University of Torino, 10125 Torino, Italy Torino Section of INFN, 10125 Torino, Italy Tomsk Polytechnic University, 634050 Tomsk, Russia Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080, USA National Centre for Nuclear Research, 02-093 Warsaw, Poland Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland Institute of Radioelectronics, Warsaw University of Technology, 00-665 Warsaw, Poland Yamagata University, Yamagata 992-8510, Japan
- Dusaev, R R
- Efremov, A
- Eversheim, P D
- Faccioli, P
-
Faessler, M
Autor Faessler, M Department of Physics, University of Aveiro, I3N, 3810-193 Aveiro, Portugal Institut für Experimentalphysik, Universität Bochum, 44780 Bochum, Germany Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany Physikalisches Institut, Universität Bonn, 53115 Bonn, Germany Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany CERN, 1211 Geneva 23, Switzerland Technical University in Liberec, 46117 Liberec, Czech Republic LIP, 1649-003 Lisbon, Portugal Institut für Kernphysik, Universität Mainz, 55099 Mainz, Germany University of Miyazaki, Miyazaki 889-2192, Japan Lebedev Physical Institute, 119991 Moscow, Russia Physik Department, Technische Universität München, 85748 Garching, Germany Nagoya University, 464 Nagoya, Japan Faculty of Mathematics and Physics, Charles University, 18000 Prague, Czech Republic Czech Technical University in Prague, 16636 Prague, Czech Republic State Scientific Center Institute for High Energy Physics of National Research Center "Kurchatov Institute," 142281 Protvino, Russia IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France Academia Sinica, Institute of Physics, Taipei 11529, Taiwan School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel Department of Physics, University of Trieste, 34127 Trieste, Italy Trieste Section of INFN, 34127 Trieste, Italy Department of Physics, University of Torino, 10125 Torino, Italy Torino Section of INFN, 10125 Torino, Italy Tomsk Polytechnic University, 634050 Tomsk, Russia Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080, USA National Centre for Nuclear Research, 02-093 Warsaw, Poland Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland Institute of Radioelectronics, Warsaw University of Technology, 00-665 Warsaw, Poland Yamagata University, Yamagata 992-8510, Japan
- Finger, M
- Finger, M
- Fischer, H
- Franco, C
- Friedrich, J M
- Frolov, V
- Gautheron, F
- Gavrichtchouk, O P
- Gerassimov, S
- Giarra, J
- Gnesi, I
- Gorzellik, M
- Grasso, A
- Gridin, A
- Grosse Perdekamp, M
- Grube, B
- Guskov, A
- von Harrach, D
- Heitz, R
- Herrmann, F
- Horikawa, N
- d'Hose, N
- Hsieh, C-Y
- Huber, S
- Ishimoto, S
- Ivanov, A
- Iwata, T
- Jandek, M
- Jary, V
- Joosten, R
- Jörg, P
- Kabuß, E
- Kaspar, F
- Kerbizi, A
- Ketzer, B
- Khaustov, G V
- Khokhlov, Yu A
- Kisselev, Yu
- Klein, F
- Koivuniemi, J H
- Kolosov, V N
- Kondo Horikawa, K
- Konorov, I
- Konstantinov, V F
- Kotzinian, A M
- Kouznetsov, O M
- Koval, A
- Kral, Z
- Krinner, F
- Kulinich, Y
- Kunne, F
- Kurek, K
- Kurjata, R P
- Kveton, A
- Lavickova, K
- Levorato, S
- Lian, Y-S
- Lichtenstadt, J
- Lin, P-J
- Longo, R
- Lyubovitskij, V E
- Maggiora, A
- Magnon, A
- Makins, N
- Makke, N
- Mallot, G K
- Maltsev, A
- Mamon, S A
- Marianski, B
- Martin, A
- Marzec, J
- Matoušek, J
- Matsuda, T
- Mattson, G
- Meshcheryakov, G V
- Meyer, M
- Meyer, W
- Mikhailov, Yu V
- Mikhasenko, M
- Mitrofanov, E
- Mitrofanov, N
- Miyachi, Y
- Moretti, A
- Nagaytsev, A
- Naim, C
- Neyret, D
- Nový, J
- Nowak, W-D
- Nukazuka, G
- Nunes, A S
- Olshevsky, A G
- Ostrick, M
- Panzieri, D
- Parsamyan, B
- Paul, S
- Pekeler, H
- Peng, J-C
- Pešek, M
- Peshekhonov, D V
- Pešková, M
- Pierre, N
- Platchkov, S
- Pochodzalla, J
- Polyakov, V A
- Pretz, J
- Quaresma, M
- Quintans, C
- Reicherz, G
- Riedl, C
- Rudnicki, T
- Ryabchikov, D I
- Rybnikov, A
- Rychter, A
- Samoylenko, V D
- Sandacz, A
- Sarkar, S
- Savin, I A
- Sbrizzai, G
- Schmieden, H
- Selyunin, A
- Sinha, L
- Slunecka, M
- Smolik, J
- Srnka, A
- Steffen, D
- Stolarski, M
- Subrt, O
- Sulc, M
- Suzuki, H
- Sznajder, P
- Tessaro, S
- Tessarotto, F
- Thiel, A
- Tomsa, J
- Tosello, F
- Townsend, A
- Tskhay, V
- Uhl, S
- Vasilishin, B I
- Vauth, A
- Veit, B M
- Veloso, J
- Ventura, B
- Vidon, A
- Virius, M
- Wagner, M
- Wallner, S
- Zaremba, K
- Zavada, P
- Zavertyaev, M
- Zemko, M
- Zemlyanichkina, E
- Zhao, Y
- Ziembicki, M
Status PubMed-not-MEDLINE Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
34477443
DOI
10.1103/physrevlett.127.082501
Knihovny.cz E-zdroje
- Publikační typ
- časopisecké články MeSH
The COMPASS Collaboration experiment recently discovered a new isovector resonancelike signal with axial-vector quantum numbers, the a_{1}(1420), decaying to f_{0}(980)π. With a mass too close to and a width smaller than the axial-vector ground state a_{1}(1260), it was immediately interpreted as a new light exotic meson, similar to the X, Y, Z states in the hidden-charm sector. We show that a resonancelike signal fully matching the experimental data is produced by the decay of the a_{1}(1260) resonance into K^{*}(→Kπ)K[over ¯] and subsequent rescattering through a triangle singularity into the coupled f_{0}(980)π channel. The amplitude for this process is calculated using a new approach based on dispersion relations. The triangle-singularity model is fitted to the partial-wave data of the COMPASS experiment. Despite having fewer parameters, this fit shows a slightly better quality than the one using a resonance hypothesis and thus eliminates the need for an additional resonance in order to describe the data. We thereby demonstrate for the first time in the light-meson sector that a resonancelike structure in the experimental data can be described by rescattering through a triangle singularity, providing evidence for a genuine three-body effect.
Academia Sinica Institute of Physics Taipei 11529 Taiwan
CERN 1211 Geneva 23 Switzerland
Czech Technical University Prague 16636 Prague Czech Republic
Department of Physics University of Aveiro I3N 3810 193 Aveiro Portugal
Department of Physics University of Illinois at Urbana Champaign Urbana Illinois 61801 3080 USA
Department of Physics University of Torino 10125 Torino Italy
Department of Physics University of Trieste 34127 Trieste Italy
Faculty of Mathematics and Physics Charles University 18000 Prague Czech Republic
Faculty of Physics University of Warsaw 02 093 Warsaw Poland
Helmholtz Institut für Strahlen und Kernphysik Universität Bonn 53115 Bonn Germany
Institut für Experimentalphysik Universität Bochum 44780 Bochum Germany
Institut für Kernphysik Universität Mainz 55099 Mainz Germany
Institute of Radioelectronics Warsaw University of Technology 00 665 Warsaw Poland
Institute of Scientific Instruments of the CAS 61264 Brno Czech Republic
IRFU CEA Université Paris Saclay 91191 Gif sur Yvette France
Joint Institute for Nuclear Research 141980 Dubna Moscow region Russia
Lebedev Physical Institute 119991 Moscow Russia
Matrivani Institute of Experimental Research and Education Calcutta 700 030 India
Nagoya University 464 Nagoya Japan
National Centre for Nuclear Research 02 093 Warsaw Poland
Physik Department Technische Universität München 85748 Garching Germany
Physikalisches Institut Universität Bonn 53115 Bonn Germany
Physikalisches Institut Universität Freiburg 79104 Freiburg Germany
School of Physics and Astronomy Tel Aviv University 69978 Tel Aviv Israel
Technical University in Liberec 46117 Liberec Czech Republic
Tomsk Polytechnic University 634050 Tomsk Russia
Torino Section of INFN 10125 Torino Italy
Trieste Section of INFN 34127 Trieste Italy
Citace poskytuje Crossref.org
Citace
Název dokumentu
Medvik ISO 690Citace.com
Nahlásit problém [Bibliografický záznam]
Sdílet
Název dokumentu
Po ukončení testovacího provozu bude odkaz přesměrován adresu produkční verze portálu Medvik.