We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A SEARCH FOR φ MESON NUCLEUS BOUND STATE USING ANTIPROTON ANNIHILATION ON NUCLEUS.
- Authors
H. OHNISHI; M. IWASAKI; F. SAKUMA; S. YOKKAICHI; BÜHLER, P.; HARTMANN, O.; ISHIWATARI, T.; MARTON, J.; SUZUKI, K.; WIDMANN, E.; ZMESKAL, J.; CURCEANU, C.; GUARALDO, C.; OKADA, S.; VIDAL, A. ROMERO; SIRGHI, D.; SIRGHI, F.; DOCE, O. VAZQUEZ; HICKS, K.; R. MUTO
- Abstract
The mass shift of the vector mesons in nuclei is known to be a powerful tool for investigating the mechanism of generating hadron mass from the QCD vacuum. The mechanism is known to be the spontaneous breaking of chiral symmetry. One of the approach to investigate spontaneous breaking of chiral symmetry in nuclear media is formation of meson nucleus bound state and measurring energy level of the state which will be a direct connection to the (...q) expectation value in nucleus. We propose the experiment to study in-medium mass modification of the φ meson using the formation of φ-meson bound state at J-PARC/Japan. We demonstrate that a clear missing-mass spectrum can be obtained efficiently by (..., φ) spectroscopy together with the Λ tagging, using the primary reaction channel ...p → φφ. A systematic study over several nuclear targets will yield a unique, definitive and precise determination of the in-medium mass modification of the vector meson φ(s...). This paper gives an overview of the physics motivation and the detector concept, and explains the direction of the initial research and development effort.
- Subjects
MESONS; BOUND states; ANTIPROTONS; ANNIHILATION reactions; ATOMIC nucleus; QUANTUM chromodynamics; CHIRALITY of nuclear particles
- Publication
Acta Physica Polonica B, 2014, Vol 45, Issue 3, p819
- ISSN
0587-4254
- Publication type
Article
- DOI
10.5506/APhysPolB.45.819