Contribution to a conference proceedings/Internal Report

PUBDB-2015-05693

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Studies of light Mesons at COMPASS

Uhl, S. ; COMPASS Collaboration (Collaboration Author)

2014
Deutsches Elektronen-Synchrotron, DESY Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-04/118

Report No.: DESY-PROC-2014-04

Abstract: The COMPASS experiment has taken a large data set with a negative pion beam impinging on a liquid-hydrogen target to study the spectrum of light mesons in diffractive dissociation reactions. The properties of known resonances are studied, and new, possibly spin-exotic states are searched in three-pion final states. A new state at about $1.4\,\textnormal{GeV}/c^2$ with $a_1$ quantum numbers is observed in the decay to $f_0\left(980\right)\pi$. The spin-exotic $1^{-+}$ wave is investigated in order to search for the controversial $\pi_1\left(1600\right)$.

Keyword(s): diffraction: dissociation ; pi: beam ; COMPASS ; meson ; quantum number

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)
2. LHC/CMS Experiment (CMS)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

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Database coverage:

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Internal Report Schmidt, A. (Editor)>Extern* ; Sander, C. (Editor)DESY*
Proceedings, 20th International Conference on Particles and Nuclei (PANIC 14)
2014Panic2014, Panic2014, HamburgHamburg, Germany, 25 Aug 2014 - 29 Aug 20142014-08-252014-08-29 Hamburg : Deutsches Elektronen-Synchrotron, DESY 1-754 (2014) [10.3204/DESY-PROC-2014-04]2014     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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