Engineering topics

Wojtsekhowski, Bogdan B.

Publications and source records attributed to Wojtsekhowski, Bogdan B..

3 records

DOE OSTI2017

Status of the experiment for the search of a dark photon at VEPP–3

The status of the experiment to search for a new gauge boson, A', in e + e - annihilation by means of a positron beam incident on a gas hydrogen target internal to the bypass at the VEPP-3 storage ring is reported. The search method is based on a missing mass spectra in reaction e + e - → γA'. It allows observation of the A' signal independently of its decay modes and life time. The projected result of this experiment corresponds to an upper limit on the square of coupling constant ε 2 = (0.2 ÷ 1.0) · 10 -7 with a signal-to-noise ratio of two to one at A' mass of 5–20 MeV.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗

DOE OSTI2017

Study of the one-way speed of light anisotropy with particle beams

Concepts of high precision studies of the one-way speed of light anisotropy are discussed. The high energy particle beam allows measurement of a one-way speed of light anisotropy (SOLA) via analysis of the beam momentum variation with sidereal phase without the use of synchronized clocks. High precision beam position monitors could provide accurate monitoring of the beam orbit and determination of the particle beam momentum with relative accuracy on the level of 10^-10, which corresponds to a limit on SOLA of 10^-18 with existing storage rings. A few additional versions of the experiment are also presented.

Wojtsekhowski, Bogdan B.↗

DOE OSTI2016

Compact Photon Source Conceptual Design

We describe options for the production of an intense photon beam at the CEBAF Hall D Tagger facility, needed for creating a high-quality secondary K 0 L delivered to the Hall D detector. The conceptual design for the Compact Photon Source apparatus is presented.

Degtyarenko, Pavel V.↗