CERN Accelerating science

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1.
Tests of General Relativity with GWTC-3 / LIGO Scientific Collaboration
The ever-increasing number of detections of gravitational waves (GWs) from compact binaries by the Advanced LIGO and Advanced Virgo detectors allows us to perform ever-more sensitive tests of general relativity (GR) in the dynamical and strong-field regime of gravity. [...]
arXiv:2112.06861 ; LIGO-P2100275.
- 41 p.
Fulltext
2.
Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO’s and Advanced Virgo’s Third Observing Run / LIGO Scientific Collaboration
We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2 $M_\odot$ and 1.0 $M_\odot$ in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio $q \geq 0.1$. [...]
arXiv:2109.12197; LIGO-P2100163-v8.- 2022-08-05 - 16 p. - Published in : Phys. Rev. Lett. 129 (2022) 061104 Fulltext: PDF;
3.
First joint observation by the underground gravitational-wave detector KAGRA with GEO 600 / KAGRA Collaboration
We report the results of the first joint observation of the KAGRA detector with GEO600. KAGRA is a cryogenic and underground gravitational-wave detector consisting of a laser interferometer with three-kilometer arms, and located in Kamioka, Gifu, Japan. [...]
arXiv:2203.01270; LIGO-P2100286.- 2022-06-14 - 37 p. - Published in : PTEP 2022 (2022) 063F01 Fulltext: 2203.01270 - PDF; document - PDF;
4.
Cryogenic system of the Rome group gravitational wave experiment / Bronzini, F (INFN, Rome) ; Coccia, E (INFN, Rome ; Rome U.) ; Modena, I (INFN, Rome ; Rome U.) ; Rapagnani, P (INFN, Rome ; Rome U., Tor Vergata) ; Ricci, F (INFN, Rome ; Rome U., Tor Vergata)
The main characteristics of a large cryostat constructed by the gravitational wave group of the University of Rome, to cool down to liquid helium temperature Weber-type gravitational wave antennas, 3 m long and weighing up to 5000 kg, are presented. The cryogenic system has the following features: continuous operation time with an interval of 1 day every 54 days to refill the cryostat; small temperature gradients in the experimental chamber where the antenna is located, and very high acoustic and seismic insulation giving attenuation of 250 dB at the antenna detection frequency of 900 Hz. [...]
1985 - 4 p. - Published in : Cryogenics 25 (1985) 234-237
In : 10th International Cryogenic Engineering Conference, Helsinki, Finland, 31 Jul - 3 Aug 1984, pp.234-237
5.
First joint Gravitational Waves search by the AURIGA-EXPLORER-NAUTILUS-Virgo collaboration / AURIGA-EXPLORER-NAUTILUS-Virgo Collaboration
We present results of the search for coincident burst excitations over a 24 hours long data set collected by AURIGA, EXPLORER, NAUTILUS and Virgo detectors during September 2005. The search of candidate triggers was performed independently on each of the data sets from single detectors. [...]
arXiv:0710.3752.- 2008 - 23 p. - Published in : Class. Quantum Gravity 25 (2008) 205007 Fulltext: PDF; External link: Fulltext
6.
Development and test at T=42K of a capacitive resonant transducer for cryogenic gravitational-wave antennas / Rapagnani, P
The characteristics of a new capacitive resonant transducer developed and tested on a small (M=11.2 kg) cryogenic gravitational-wave antenna at the liquid helium temperature are presented. The resonator frequency can be tuned within 0.1 Hz of the antenna frequency. [...]
1982 - Published in : Nuovo Cimento C: 5 ser.1 (1982) , no. 4, pp. 385-408
7.
Mechanical-transfer function and Brownian-noise measurements at T=42K of a small (M=203 kg) gravitational-wave antenna using double 'four- point' mechanical suspensions / Bonifazi, P ; Coccia, E ; Rapagnani, P
Measurements at T=4.2K of the mechanical-transfer function (MTF) and of the Brownian noise of a small test antenna using a new type of suspensions are reported. These suspensions operate as a double mechanical filter and their MTF has been measured in order to investigate their use for the big (5 t) gravitational-wave antenna now being assembled at CERN by the Rome group. [...]
1981 - Published in : Nuovo Cimento C: 4 ser.1 (1981) , no. 4, pp. 408-16
8.
Performance and preliminary results of the cosmic-ray detector associated with NAUTILUS / Astone, P ; Bassan, M ; Bonifazi, P ; Carelli, P ; Castellazzi, D ; Cosmelli, C ; Coccia, E ; Fafone, V ; Frasca, S ; Marini, A et al.
LNF-96-077-P.
- 1996. - 5 p.
Access to fulltext document - Access to fulltext document
9.
Upper limit for a gravitational-wave stochastic background with the EXPLORER and NAUTILUS resonant detectors / Astone, P ; Bassan, M ; Bonifazi, P ; Carelli, P ; Coccia, E ; Cosmelli, C ; Fafone, V ; Frasca, S ; Marini, A ; Mazzitelli, G et al.
LNF-96-048-P.
- 1996. - 8 p.
Access to fulltext document - Access to fulltext document
10.
The gravitational wave detector NAUTILUS operating at T=0.1 K / Astone, P ; Bassan, M ; Bonifazi, P ; Carelli, P ; Coccia, E ; Cosmelli, C ; Fafone, V ; Frasca, S ; Marini, A ; Mazzitelli, G et al.
LNF-97-005-P.
- 1997. - 19 p.
Access to fulltext document - Access to fulltext document - CERN library copies

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