We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Resonances in the K[sub S]K[sub S]K[sub L] System Produced in Collisions of Negative Pions with a Carbon Target at a Momentum of 40 GeV.
- Authors
Tikhomirov, G. D.; Erofeev, I. A.; Erofeeva, O. N.; Luzin, V. N.
- Abstract
The experimental spectrum of the K[SUBS]K[SUBS]K[SUBL] system from the reaction π[SUP-]C→ K[SUBS]K[SUBS]K[SUBL]+Y at a momentum of 40 GeV was obtained experimentally with the aim of studying resonance states featuring open strangeness and occurring in the high-mass region. The experiment was performed at the 6-m spectrometer installed at the Institute for High Energy Physics (IHEP, Protvino). The spectrum displays, along with well-known resonances [K[SUB1](1640),K[SUB2](1770),K[SUB2](1820),K[SUB2](1980)], which fit in the quark -- antiquark classification, the exotic resonances K[SUB2](2280) and K[SUB4](2500). The K[SUB2](2280) resonance exhibits the properties of a hybrid and has an exotic decay mode producing a triplet of known resonance states related to each other by quark -- gluon mixing. The mechanism of the formation of the observed hybrid K[SUB2](2280)is dominated by the exchange of a natural spin-parity in the t channel of the reaction. The mode of decay into f[SUB0](980)KL and the mode of decay into f[SUB2](1270)KL are observed for the K[SUB2](1770) and the K[SUB2](1980) resonance, respectively.
- Subjects
PIONS; QUARK-gluon plasma
- Publication
Physics of Atomic Nuclei, 2003, Vol 66, Issue 5, p828
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/1.1576456