Bound on the Q-Factor of a G-Constant Measuring Pendulum Device from Gravitational Stochastic Background期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Bound on the Q-Factor of a G-Constant Measuring Pendulum Device from Gravitational Stochastic Background

Authors:	Fabio Cardone Roberto Mignani Eliano Pessa

Affiliation:	(1) Dipartimento di Fisica, Università dell'Aquila, Via Vetoio, 67010 Coppito L'Aquila, Italy, and;(2) Dipartimento di Fisica E. Amaldi,, Università di Roma Roma Tre,, Via della Vasca Navale 84, 00146 Roma, Italy and;(3) Dipartimento di Psicologia, ECONA, Via dei Marsi, 00186 Roma, Italy;(4) INDAM-GNFM, Italy;(5) INFN, Sezione di Roma III, Italy

Abstract:	We discuss the possible effects of gravitational-wave stochastic background on the performance of a pendulum device such those used in precise measurements of the gravitational constant G. The variation Q of the quality factor Q of the pendulum induced by the stochastic background is evaluated, by using as numerical input the results obtained in gravitational antennas experiments. It is found \|q\|10^–10, completely negligible with respect to a typical value Q10⁵.

Keywords:	gravitational constant stochastic gravitational radiation pendulum Q factor
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