I. A. Vanyushin

Publications (9)4.84 Total impact

• Source

  Available from: Luis Serra

  Article: Probing new physics models of neutrinoless double beta decay with SuperNEMO

  R. Arnold, C. Augier, J. Baker, A. S. Barabash, A. Basharina-Freshville, M. Bongrand, V. Brudanin, A. J. Caffrey, S. Cebrián, A. Chapon, [......], V. Tretyak, V. I. Tretyak, V. I. Umatov, I. A. Vanyushin, R. Vasiliev, V. Vasiliev, V. Vorobel, D. Waters, N. Yahlali, A. Žukauskas
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  ABSTRACT: The possibility to probe new physics scenarios of light Majorana neutrino exchange and right-handed currents at the planned next generation neutrinoless double β decay experiment SuperNEMO is discussed. Its ability to study different isotopes and track the outgoing electrons provides the means to discriminate different underlying mechanisms for the neutrinoless double β decay by measuring the decay half-life and the electron angular and energy distributions.
  European Physical Journal C 04/2012; 70(4):927-943. · 3.63 Impact Factor
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  Available from: Luis Serra

  Article: Results of the BiPo-1 prototype for radiopurity measurements for the SuperNEMO double beta decay source foils

  J. Argyriades, R. Arnold, C. Augier, J. Baker, A.S. Barabash, A. Basharina-Freshville, M. Bongrand, C. Bourgeois, D. Breton, M. Brière, [......], Vl.I. Tretyak, V.I. Umatov, L. Vála, I.A. Vanyushin, R. Vasiliev, V.A. Vasiliev, V. Vorobel, D. Waters, N. Yahlali, A. Žukauskas
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  ABSTRACT: The development of BiPo detectors is dedicated to the measurement of extremely high radiopurity in 208Tl and 214Bi for the SuperNEMO double beta decay source foils. A modular prototype, called BiPo-1, with 0.8 m2 of sensitive surface area, has been running in the Modane Underground Laboratory since February, 2008. The goal of BiPo-1 is to measure the different components of the background and in particular the surface radiopurity of the plastic scintillators that make up the detector. The first phase of data collection has been dedicated to the measurement of the radiopurity in 208Tl. After more than one year of background measurement, a surface activity of the scintillators of is reported here. Given this level of background, a larger BiPo detector having 12 m2 of active surface area, is able to qualify the radiopurity of the SuperNEMO selenium double beta decay foils with the required sensitivity of (90% C.L.) with a six month measurement.
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 05/2010;
• Source

  Available from: Abdellatif Nachab

  Article: Measurement of the background in the NEMO 3 double beta decay experiment

  NEMO Collaboration, J. Argyriades, R Arnold, C. Augier, J. Baker, A. S. Barabash, M. Bongrand, G. Broudin-Bay, V. B. Brudanin, A. J. Caffrey, [......], J Thomas, V. V. Timkin, V. I. Tretyak, Vl. I. Tretyak, V. I. Umatov, L. V'ala, I. A. Vanyushin, V. A. Vasiliev, V. Vorobel, Ts. Vylov
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  ABSTRACT: In the double beta decay experiment NEMO~3 a precise knowledge of the background in the signal region is of outstanding importance. This article presents the methods used in NEMO~3 to evaluate the backgrounds resulting from most if not all possible origins. It also illustrates the power of the combined tracking-calorimetry technique used in the experiment. Comment: 32 pages, 23 figures, submitted to NIM A
  03/2009;
• Source

  Available from: Abdellatif Nachab

  Article: Search for $\beta^+$EC and ECEC processes in $^{112}$Sn and $\beta^-\beta^-$ decay of $^{124}$Sn to the excited states of $^{124}$Te

  A. S. Barabash, Ph. Hubert, A. Nachab, S. I. Konovalov, I. A. Vanyushin, V. I. Umatov
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  ABSTRACT: Limits on $\beta^+$EC and ECEC processes in $^{112}$Sn and on $\beta^-\beta^-$ decay of $^{124}$Sn to the excited states of $^{124}$Te have been obtained using a 380 cm$^3$ HPGe detector and an external source consisting of natural tin. A limit with 90% C.L. on the $^{112}$Sn half-life of $0.92\times 10^{20}$ y for the ECEC(0$\nu$) transition to the $0^+_3$ excited state in $^{112}$Cd (1871.0 keV) has been established. This transition is discussed in the context of a possible enhancement of the decay rate by several orders of magnitude given that the ECEC$(0\nu)$ process is nearly degenerate with an excited state in the daughter nuclide. Prospects for investigating such a process in future experiments are discussed. The $\beta^-\beta^-$ decay limits for $^{124}$Sn to the excited states of $^{124}$Te were obtained on the level of $(0.8-1.2)\times 10^{21}$ y at the 90% C.L.
  05/2008;
• Article: Search for β+EC and ECEC processes in 112Sn and β−β− decay of 124Sn to the excited states of 124Te

  A.S. Barabash, Ph. Hubert, A. Nachab, S.I. Konovalov, I.A. Vanyushin, V. Umatov
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  ABSTRACT: Limits on β+EC and ECEC processes in 112Sn and on β−β− decay of 124Sn to the excited states of 124Te have been obtained using a 380 cm3 HPGe detector and an external source consisting of natural tin. A limit with 90% C.L. on the 112Sn half-life of 0.92×1020 y for the ECEC(0ν) transition to the excited state in 112Cd (1871.0 keV) has been established. This transition is discussed in the context of a possible enhancement of the decay rate by several orders of magnitude given that the ECEC(0ν) process is nearly degenerate with an excited state in the daughter nuclide. Prospects for investigating such a process in future experiments are discussed. The β−β− decay limits for 124Sn to the excited states of 124Te were obtained on the level of (0.8–1.2) × 1021 y at the 90% C.L.
  Nuclear Physics A.
• Article: Spectral modeling of scintillator for the NEMO-3 and SuperNEMO detectors

  J. Argyriades, R Arnold, C. Augier, J. Baker, A. S. Barabash, M. Bongrand, G. Broudin-Bay, V. B. Brudanin, A. J. Caffrey, S. Cebrián, [......], Vl.I. Tretyak, V. I. Umatov, L. Vála, I. A. Vanyushin, R. Vasiliev, V. Vorobel, Ts. Vylov, D Waters, N. Yahlali, A. Zukauskas
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  ABSTRACT: We have constructed a GEANT4-based detailed software model of photon transport in plastic scintillator blocks and have used it to study the NEMO-3 and SuperNEMO calorimeters employed in experiments designed to search for neutrinoless double beta decay. We compare our simulations to measurements using conversion electrons from a calibration source of ^207Bi and show that the agreement is improved if wavelength-dependent properties of the calorimeter are taken into account. In this article, we briefly describe our modeling approach and results of our studies.
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
• Article: Testing the Pauli exclusion principle with the NEMO-2 detector

  R Arnold, C. Augier, J. Baker, A. S. Barabash, D Blum, V. B. Brudanin, A. J. Caffrey, J E Campagne, E. Caurier, D Dassié, [......], C S Sutton, G. Szklarz, V. Timkin, R D Torres, V. I. Tretyak, V. I. Umatov, I. A. Vanyushin, A Vareille, Yu Vasilev, T D Vylov
• Article: Measurement of the background in the NEMO 3 double beta decay experiment

  J. Argyriades, R. Arnold, C. Augier, J. Baker, A.S. Barabash, M. Bongrand, G. Broudin-Bay, V.B. Brudanin, A.J. Caffrey, A. Chapon, [......], J. Thomas, V.V. Timkin, V.I. Tretyak, Vl.I. Tretyak, V.I. Umatov, L. Vála, I.A. Vanyushin, V.A. Vasiliev, V. Vorobel, Ts. Vylov
  [show abstract] [hide abstract]
  ABSTRACT: In the double beta decay experiment NEMO 3 a precise knowledge of the background in the signal region is of outstanding importance. This article presents the methods used in NEMO 3 to evaluate the backgrounds resulting from most if not all possible origins. It also illustrates the power of the combined tracking-calorimetry technique used in the experiment.
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
• Source

  Available from: Luis Serra

  Article: Spectral modeling of scintillator for the NEMO-3 and SuperNEMO detectors

  J. Argyriades, R. Arnold, C. Augier, J. Baker, A.S. Barabash, M. Bongrand, G. Broudin-Bay, V.B. Brudanin, A.J. Caffrey, S. Cebrián, [......], Vl.I. Tretyak, V.I. Umatov, L. Vála, I.A. Vanyushin, R. Vasiliev, V. Vorobel, Ts. Vylov, D. Waters, N. Yahlali, A. Žukauskas
  [show abstract] [hide abstract]
  ABSTRACT: We have constructed a GEANT4-based detailed software model of photon transport in plastic scintillator blocks and have used it to study the NEMO-3 and SuperNEMO calorimeters employed in experiments designed to search for neutrinoless double beta decay. We compare our simulations to measurements using conversion electrons from a calibration source of 207Bi and show that the agreement is improved if wavelength-dependent properties of the calorimeter are taken into account. In this article, we briefly describe our modeling approach and results of our studies.
  Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 625(1):20-28. · 1.21 Impact Factor