117698039
Search for exotic baryons in the experiments on proton beam with $E_{p}$=70 GeV and other measurements with the SPHINX facility
125225301
Study of quark line selection rule (OZI rule) in hadron processes. 2. Search for the OZI suppressed decay B / b1 (1235) ---> phi pi0
2520973
Study of the Primakoff Reactions at High Energy
In this talk the Coulomb production reactions at high energy are discussed as well as the study of electromagnetic properties of hadrons (mesons and hyperons) in these processes. The results of previous investigations are summed together with some recent data of SELEX(Fermilab) and SPHINX(IHEP) experiments.
118051879
Radiative decays of hyperons
115236552
Searches for exotic pentaquark baryons with hidden strangeness in experiments at the SPHINX facility
121350964
Study of the diffractive production of baryon states and search for cryptoexotic baryons with hidden strangeness
The reactions of baryon diffractive productionp+N→(pK+K−)+N, p+N→(pϕ)+N, p+N→[Λ(1520)K+]+N p+N→[Σ(1385)oK+]+N in the 70 GeV proton beam were studied. Very sensitive upper limits for the production cross sections of heavy narrow cryptoexotic baryon resonances with hidden strangeness were obtained.
122800935
Further studies of the X(1910) meson
Abstract New data on the ν ′ ν system produced in the π − p charge exchange at 38 GeV c momentum confirm the existence of the narrow ν ′ ν resonance X(1910). The hypothesis of the X(1910) quantum numbers being a J PC = 1 −+ , forbidden for the q[ovbar|q] meson, is proposed to explain the extremely low limits obtained for X(1910) decays through π 0 π 0 , νν and K 0 s K 0 s channels and the flat t -dependence of the X(1910) production cross section.
119113030
Searching for the Layered Structure of Space at the LHC
Alignment of the main energy fluxes along a straight line in a target plane has been observed in families of cosmic ray particles detected in the Pamir mountains. The fraction of events with alignment is statistically significant for families with superhigh energies and large numbers of hadrons. This can be interpreted as evidence for coplanar hard scattering of secondary hadrons produced in the early stages of the atmospheric cascade development. This phenomenon can be described within the recently proposed 'crystal world,' with latticized and anisotropic spatial dimensions. Planar events are expected to dominate particle collisions at a hard-scattering energy exceeding the scale {Lambda}{sub 3} at which space transitions from 3D{r_equilibrium}2D. We study specific collider signatures that will test this hypothesis. We show that the energy spectrum of Drell-Yan (DY) scattering is significantly modified in this framework. At the LHC, two jet and three jet events are necessarily planar, but four jet events can test the hypothesis. Accordingly, we study in a model-independent way the 5{sigma} discovery reach of the ATLAS and CMS experiments for identifying four jets coplanarities. For the extreme scenario in which all pp {yields} 4 jet scattering processes become coplanar above {Lambda}{sub 3}, we show that withmore » an integrated luminosity of 10(100) fb{sup -1} the LHC experiments have the potential to discover correlations between jets if {Lambda}{sub 3} {approx}< 1.25(1.6) TeV.« less
11520844
Trilinear gauge couplings at the Fermilab Tevatron
Recent trilinear gauge boson couplings measurements by the CDF and D0 Collaborations at the Fermilab Tevatron are presented. The measurements were done by analyzing diboson production in multiple decay channels and final states. No deviations from the Standard Model description of the WWZ, WW{gamma}, ZZ{gamma} and Z{gamma}{gamma} vertices were found. Limits on anomalous gauge couplings set by these analyses are the tightest available to date.
11502002
Discovering a light Higgs boson with light
We evaluate the prospects for detecting a non-standard light Higgs boson with a significant branching ratio to two photons, in run II of the Fermilab Tevatron. We derive the reach for several channels: 2{gamma} inclusive, 2{gamma}+1 jet, and 2{gamma}+2 jets. We present the expected run II limits on the branching ratio of h{yields}{gamma}{gamma} as a function of the Higgs boson mass, for the case of ''bosonic,'' as well as ''top-color'' Higgs bosons. (c) 2000 The American Physical Society.
119417371
Black holes at future colliders and beyond
One of the most dramatic consequences of low-scale (~1 TeV) quantum gravity in models with large or warped extra dimension(s) is copious production of mini-black holes at future colliders and in ultra-high-energy cosmic ray collisions. Hawking radiation of these black holes is expected to be constrained mainly to our three-dimensional world and results in rich phenomenology. In this topical review we discuss the current status of astrophysical observations of black holes and selected aspects of mini-black-hole phenomenology, such as production at colliders and in cosmic rays, and black-hole decay properties, Hawking radiation as a sensitive probe of the dimensionality of extra space, as well as an exciting possibility of finding new physics in the decays of black holes.