New analysis of ηπ tensor resonances measured at the COMPASS experiment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F18%3A00006374" target="_blank" >RIV/46747885:24510/18:00006374 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/18:00320387 RIV/68407700:21340/18:00320387
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S037026931830025X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S037026931830025X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.01.017" target="_blank" >10.1016/j.physletb.2018.01.017</a>
Alternative languages
Result language
angličtina
Original language name
New analysis of ηπ tensor resonances measured at the COMPASS experiment
Original language description
© 2018 The Author(s) 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 a 2 (1320) and the excited a 2′ (1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a 2 we find M=(1307±1±6) MeV and Γ=(112±1±8) MeV, and for the excited state a 2′ we obtain M=(1720±10±60) MeV and Γ=(280±10±70) MeV, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2015058" target="_blank" >LM2015058: Research Infrastructure for Experiments at CERN</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
e-ISSN
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Volume of the periodical
779
Issue of the periodical within the volume
779
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
464-472
UT code for WoS article
000429098900061
EID of the result in the Scopus database
2-s2.0-85042430181