2009/10/15 by A. Margaryan, Margaryan, Amur
Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Frequency and Time Standards #Advanced Optical Sensing Technologies #Atomic and Subatomic Physics Research #FOS: Physical sciences #Nuclear Experiment (nucl-ex)
paper · pdf · doi:10.48550/arxiv.0910.3011
openalex publication_date 2009/10/15 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
Recently a new experimental program of novel systematic studies of light\nhypernuclei using pionic decay was established at JLab (Study of Light\nHypernuclei by Pionic Decay at JLab, JLab Experiment PR-08-012). The highlights\nof the proposed program include high precision measurements of binding energies\nof hypernuclei by using a high resolution pion spectrometer, HpiS. The average\nvalues of binding energies will be determined within an accuracy of ~10 keV or\nbetter. Therefore, the crucial point of this program is an absolute calibration\nof the HpiS with accuracy 10E-4 or better. The merging of continuous wave\nlaser-based precision optical-frequency metrology with mode-locked ultrafast\nlasers has led to precision control of the visible frequency spectrum produced\nby mode-locked lasers. Such a phase-controlled mode-locked laser forms the\nfoundation of an optical clock or femtosecond optical frequency comb (OFC)\ngenerator, with a regular comb of sharp lines with well defined frequencies.\nCombination of this technique with a recently developed radio frequency (RF)\nphototube results in a new tool for precision time measurement. We are\nproposing a new time-of-flight (TOF) system based on an RF phototube and OFC\ntechnique. The proposed TOF system achieves 10 fs instability level and opens\nnew possibilities for precise measurements in nuclear physics such as an\nabsolute calibration of magnetic spectrometers within accuracy 10E-4 - 10E-5.\n