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CERN Document Server	2,041 записей найдено 1 - 10 перейти к записи:	Поиск длился 0.35 секунд.

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First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment / Beck, M. (Munster U.) ; Coeck, S. (Leuven U.) ; Kozlov, V.Yu. (KIT, Karlsruhe) ; Breitenfeldt, M. (Leuven U.) ; Delahaye, P. (CERN) ; Friedag, P. (Munster U.) ; Herbane, M. (Leuven U.) ; Herlert, A. (CERN) ; Kraev, I.S. (Leuven U.) ; Mader, J. (Munster U.) et al.
The WITCH experiment (Weak Interaction Trap for CHarged particles) will search for exotic interactions by investigating the beta-neutrino angular correlation via the measurement of the recoil energy spectrum after beta decay. As a first step the recoil ions from the beta-minus decay of 124In stored in a Penning trap have been detected. [...]
arXiv:1008.0207.- 2011 - 9 p. - Published in : Eur. Phys. J. A 47 (2011) 45 Fulltext: PDF; External link: Preprint

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The WITCH experiment: completion of a set-up to investigate the structure of weak interactions with a Penning trap / ISOLDE Collaboration
The WITCH experiment aims to study a possible admixture of a scalar or tensor type interaction in beta decay by determining the beta-neutrino angular correlation from the shape of the recoil energy spectrum. The installation period was completed and intensive commissioning of the set-up was performed already. [...]
nucl-ex/0603011.- 2006 - 31 p. - Published in : Int. J. Mass Spectrom. 251 (2006) 159-172 Access to fulltext document: PDF; Fulltext: PDF; External link: nucl-ex/0603011 PDF

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Progress at the WITCH experiment towards weak interaction studies / Tandecki, Michaël
A measurement of the $\beta$–ν angular correlation in nuclear $\beta$- decay is a good probe to search for physics beyond the Standard Model, independent of assumptions like parity, charge and time reversal violation [...]
CERN-THESIS-2011-329 - 275 p.

Fulltext

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(58)

A compact radio frequency quadrupole for ion bunching in the WITCH experiment / Traykov, E. (Leuven U.) ; Beck, M. (Munster U.) ; Breitenfeldt, M. (Leuven U.) ; Delahaye, P. (CERN) ; De Leebeeck, V. (Leuven U.) ; Friedag, P. (Munster U.) ; Herlert, A. (CERN) ; Geeraert, N. (Leuven U.) ; Heirman, W. (Leuven U.) ; Lonne, P.I. (Bergen U.) et al.
During the last several years the WITCH (Weak Interaction Trap for CHarged particles) experimental setup at ISOLDE has undergone various upgrades aiming at improvement of general performance. An essential innovation, a compact Radio Frequency Quadrupole (RFQ) ion cooler and buncher device, was designed and successfully commissioned as a part of the off-line tuning system of WITCH. [...]
2011 - Published in : Nucl. Instrum. Methods Phys. Res., A 648 (2011) 1-14

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The WITCH Experiment : towards weak interactions studies. Status and prospects / ISOLDE Collaboration
Primary goal of the WITCH experiment is to test the Standard Model for a possible ad-mixture of a scalar or tensor type interaction in beta-decay. This information will be inferred from the shape of the recoil energy spectrum. [...]
nucl-ex/0701007.- 2006 - 6 p. - Published in : Hyperfine Interact. Access to fulltext document: PDF; Fulltext: PDF; External link: nucl-ex/0701007 PDF
In : 4th International Conference on Trapped Charged Particles and Fundamental Physics, Parksville, Canada, 3 - 8 Sep 2006, pp.15-22

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WITCH: a recoil spectrometer for weak interaction and nuclear physics studies / ISOLDE, EUROTRAPS and NIPNET Collaborations
An experimental set-up is described for the precise measurement of the recoil energy spectrum of the daughter ions from nuclear beta decay. The experiment is called WITCH, short for Weak Interaction Trap for CHarged particles, and is set up at the ISOLDE facility at CERN. [...]
CERN-EP-2002-084.- Geneva : CERN, 2003 - 16 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 503 (2003) 567-579 Fulltext: PDF; - CERN library copies

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The WITCH experiment : Acquiring the first recoil ion spectrum / Kozlov, V.Yu. (Leuven U.) ; Beck, M. (Munster U.) ; Coeck, S. (Leuven U.) ; Delahaye, P. (CERN) ; Friedag, P. (Munster U.) ; Herbane, M. (Leuven U.) ; Herlert, A. (CERN) ; Kraev, I.S. (Leuven U.) ; Tandecki, M. (Leuven U.) ; Van Gorp, S. (Leuven U.) et al.
The standard model of the electroweak interaction describes beta-decay in the well-known V-A form. Nevertheless, the most general Hamiltonian of a beta-decay includes also other possible interaction types, e.g. [...]
arXiv:0807.3421.- 2008 - 11 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 266 (2008) 4515-4520 Fulltext: PDF; External link: Preprint
In : 15th International Conference on Electromagnetic Isotope Separators and Techiques Related to their Applications, Deauville, France, 24 - 29 Jun 2007, pp.4515-4520

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First high-statistics and high-resolution recoil-ion data from the WITCH retardation spectrometer / Finlay, P (Leuven U.) ; Breitenfeldt, M (Leuven U.) ; Porobić, T (Leuven U.) ; Wursten, E (Leuven U.) ; Ban, G (Caen U.) ; Beck, M (Munster U.) ; Couratin, C (Leuven U.) ; Fabian, X (Caen U.) ; Fléchard, X (Caen U.) ; Friedag, P (Munster U.) et al.
The first high-statistics and high-resolution data set for the integrated recoil-ion energy spectrum following the $ \beta^+$ decay of$^{35}$Ar has been collected with the WITCH retardation spectrometer located at CERN-ISOLDE. Over 25 million recoil-ion events were recorded on a large-area multichannel plate (MCP) detector with a time-stamp precision of 2ns and position resolution of 0.1mm due to the newly upgraded data acquisition based on the LPC Caen FASTER protocol. [...]
2016 - Published in : Eur. Phys. J. A 52 (2016) 206 Fulltext: PDF;

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Search for a scalar component in the weak interaction / Zakoucky, Dalibor (Rez, Nucl. Phys. Inst.) ; Baczyk, Pavel (CERN) ; Ban, Gilles (Caen U.) ; Beck, Marcus (Munster U. ; Mainz U.) ; Breitenfeldt, Martin (KU Leuven, Dept. Phys. Astron.) ; Couratin, Claire (Caen U.) ; Fabian, Xavier (Caen U.) ; Finlay, Paul (KU Leuven, Dept. Phys. Astron.) ; Flechard, Xavier (Caen U.) ; Friedag, Peter (Munster U. ; U. Munster) et al.
Weak interactions are described by the Standard Model which uses the basic assumption of a pure “V(ector)-A(xial vector)” character for the interaction. However, after more than half a century of model development and experimental testing of its fundamental ingredients, experimental limits for possible admixtures of scalar and/or tensor interactions are still as high as 7%. [...]
2015 - 4 p. - Published in : JPS Conf. Proc. 6 (2015) 030065
In : 2nd Conference on Advances in Radioactive Isotope Science, Tokyo, Japan, 1 - 6 Jun 2014, pp.030065

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WITCH: a recoil spectrometer for β-decay / EUROTRAPS Collaboration
The WITCH experiment will measure the recoil energy spectrum of the daughter ions in b -decay. The main parts of the experiment are two Penning traps and a subsequent retardation spectrometer. [...]
2003 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 204 (2003) 521-525
In : 14th International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications, Victoria, Canada, 6 - 10 May 2002, pp.521-525

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