New analysis of ηπ tensor resonances measured at the COMPASS experiment; Physics Letters B; Vol. 779
| Parent link: | Physics Letters B Vol. 779.— 2018.— P. 464-472 |
|---|---|
| Weitere Verfasser: | , , , , , , , , , |
| Zusammenfassung: | Title screen We present a new amplitude analysis of the ηπ D-wave in the reaction π−p→ηπ−p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a2(1320) and the excited a2′(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a2 we find M=(1307±1±6) MeV and Γ=(112±1±8) MeV, and for the excited state a2′ we obtain M=(1720±10±60) MeV and Γ=(280±10±70) MeV, respectively. |
| Sprache: | Englisch |
| Veröffentlicht: |
2018
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1016/j.physletb.2018.01.017 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666925 |
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| 200 | 1 | |a New analysis of ηπ tensor resonances measured at the COMPASS experiment |f A. Jackura, C. Fernandez-Ramirez, G. Ch. Fox [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a References.: 47 tit | ||
| 330 | |a We present a new amplitude analysis of the ηπ D-wave in the reaction π−p→ηπ−p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a2(1320) and the excited a2′(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a2 we find M=(1307±1±6) MeV and Γ=(112±1±8) MeV, and for the excited state a2′ we obtain M=(1720±10±60) MeV and Γ=(280±10±70) MeV, respectively. | ||
| 461 | |t Physics Letters B | ||
| 463 | |t Vol. 779 |v P. 464-472 |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a резонансы | |
| 610 | 1 | |a COMPASS | |
| 610 | 1 | |a волны | |
| 610 | 1 | |a тензоры | |
| 701 | 1 | |a Jackura |b A. |g Andrew | |
| 701 | 1 | |a Fernandez-Ramirez |b C. |g Cesar | |
| 701 | 1 | |a Fox |b G. Ch. |g Geoffrey Charles | |
| 701 | 1 | |a Dusaev |b R. R. |c specialist in the field of nuclear physics |c Engineer of Tomsk Polytechnic University |f 1988- |g Renat Ramilyevich |3 (RuTPU)RU\TPU\pers\30972 |9 15210 | |
| 701 | 1 | |a Levchenko |b E. A. |c mathematician |c technician, Senior Lecturer of Tomsk Polytechnic University, candidate of physico-mathematical Sciences |f 1988- |g Evgeny Anatolievich |3 (RuTPU)RU\TPU\pers\31735 |9 15848 | |
| 701 | 1 | |a Mamon |b S. A. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1989- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\43559 |9 21685 | |
| 701 | 1 | |a Vasilishin |b B. I. |c engineer-physicist |c laboratory researcher at Tomsk Polytechnic University |f 1990- |g Bogdan Ivanovich |3 (RuTPU)RU\TPU\pers\37572 |9 20428 | |
| 701 | 1 | |a Burtsev |b V. E. |c mathematician |c Senior Lecturer of Tomsk Polytechnic University |f 1991- |g Vitaly Evgenjevich |3 (RuTPU)RU\TPU\pers\38282 |9 20725 | |
| 701 | 1 | |a Chumakov |b A. G. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1992- |g Aleksandr Grigorjevich |3 (RuTPU)RU\TPU\pers\41079 |9 21380 | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
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