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Strange-Meson Spectroscopy at COMPASS
- Publication Year :
- 2020
-
Abstract
- COMPASS is a multi-purpose fixed-target experiment at CERN aimed at studying the structure and spectrum of hadrons. It has collected the so far world's largest data set on diffractive production of the $K^-\pi^-\pi^+$ decay, which in principle gives access to all kaon states. We performed an elaborate partial-wave analysis, using model-selection techniques to select the wave set based on a large systematically constructed pool of allowed partial waves. The partial-wave decomposition reveals signals in the mass region of well-known states, such as $K_1(1270)$ and $K_1(1400)$. In addition, we observe potential signals from excited states, such as $K_1(1650)$.<br />Comment: XVIII International Conference on Hadron Spectroscopy and Structure
- Subjects :
- Physics
Particle physics
Large Hadron Collider
Meson
hep-ex
Hadron
Spectrum (functional analysis)
FOS: Physical sciences
hep-ph
High Energy Physics - Experiment
Set (abstract data type)
High Energy Physics - Experiment (hep-ex)
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Excited state
Compass
Spectroscopy
Particle Physics - Experiment
Particle Physics - Phenomenology
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....0ec58bbada6d0de851cb7267aca46426