119771596
Production mechanism of the X(1740) meson
Abstract New data from π - p charge-exchange at 38 GeV/ c confirm the existence of the narrow X (1740) meson, observed in its ηη decay mode. The upper limit on its width is 80 MeV. It is not observed decaying into either η'η or π 0 π 0 . This meson is produced in charge-exchange by a mechanism other than OPE with a nucleon isobar (probably Δ(1232)), and not with a neutron.
54819538
Collider searches for extra dimensions
Searches for extra spatial dimensions remain among the most popular new directions in our quest for physics beyond the Standard Model. High-energy collider experiments of the current decade should be able to find an ultimate answer to the question of their existence in a variety of models. Until the start of the LHC in a few years, the Tevatron will remain the key player in this quest. In this paper, we review the most recent results from the Tevatron on searches for large, TeV{sup -1}-size, and Randall-Sundrum extra spatial dimensions, which have reached a new level of sensitivity and currently probe the parameter space beyond the existing constraints. While no evidence for the existence of extra dimensions has been found so far, an exciting discovery might be just steps away.
119251173
Vanishing Dimensions and Planar Events at the LHC
We propose that the effective dimensionality of the space we live in depends on the length scale we are probing. As the length scale increases, new dimensions open up. At short scales the space is lower dimensional; at the intermediate scales the space is three-dimensional; and at large scales, the space is effectively higher dimensional. This setup allows for some fundamental problems in cosmology, gravity, and particle physics to be attacked from a new perspective. The proposed framework, among the other things, offers a new approach to the cosmological constant problem and results in striking collider phenomenology and may explain elongated jets observed in cosmic-ray data.
125220211
Vanishing Dimensions and Planar Events at the LHC
We present a paradigm in which the effective dimensionality of space depends on the length scale we are probing. At short scales the space is lower dimensional; at the intermediate scales the space is three-dimensional; and at large scales, the space is effectively higher dimensional. This setup allows for some fundamental problems in cosmology, gravity, and particle physics to be approached from a new perspective and results in striking collider phenomenology. It may also explain elongated jets observed in cosmic-ray data.
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.
55912405
Kaluza-Klein states of the standard model gauge bosons: Constraints from high energy experiments
In theories with the standard model gauge bosons propagating in TeV 21 -size extra dimensions, their KaluzaKlein states interact with the rest of the SM particles confined to the 3-brane. We look for possible signals for this interaction in the present high-energy collider data, and estimate the sensitivity offered by the next generation of collider experiments. Based on the present data from the CERN LEP 2, Fermilab Tevatron, and DESY HERA experiments, we set a lower limit on the extra dimension compactification scale MC .6.8 TeV at the 95% confidence level~dominated by the LEP 2 results! and quote expected sensitivities in the Tevatron Run 2 and at the CERN LHC.
118823748
On the search for cryptoexotic strange baryons with additional hidden strangeness in the experiments with high energy hyperon beams
118051879
Radiative decays of hyperons
118623789
On some rare weak decays of hyperons in E781
117698039
Search for exotic baryons in the experiments on proton beam with $E_{p}$=70 GeV and other measurements with the SPHINX facility
118922675
Study of diffractive production processes in proton-nucleon and proton-nucleus interactions and search for exotic baryons