Erratum: Radiative corrections to the pion beta decay [JETP 59, No. 10, 671–676 (25 May 1994)]

Arbuzov, A. B.

doi:10.1134/1.567138

Cited by 4 publications

(5 citation statements)

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“…First, it was found during lower hybrid heating (LHH). An abrupt drop of H β radiation and MHD activity, an increase of the plasma density and stored energy as well as broadening of the ion temperature profile were observed after the RF pulse was switched on and after the post heating phase [2]. After an L-H transition the energy confinement time increased by a factor of two to three.…”

Section: Introductionmentioning

confidence: 98%

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

Lashkul

Budnikov

Borevich³

et al. 2000

Plasma Phys. Control. Fusion

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The possibility of controlling the transport processes in the tokamak plasma in the lower hybrid heating (LHH) experiment has been demonstrated. We illustrate experimentally the observed transport barrier formation initialized by the LHH for different plasma experiment scenarios. First, it was found during LHH. The next method to trigger improved confinement is a combination of fast current ramp-up with LHH. The mechanisms of internal barrier formation have been put forward to explain the observed regime of improved core confinement. The increased shear of the radial electric field stimulates the internal barrier formation.

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Section: Introductionmentioning

confidence: 98%

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

Lashkul

Budnikov

Borevich³

et al. 2000

Plasma Phys. Control. Fusion

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“…It is difficult to investigate the ECEC process because one only detects the low energy x-rays. It is interesting to search for transitions to the excited states of daughter nuclei, which are easier to detect given the cascade of higher energy gammas [7]. One can foresee that with improvement in the experimental techniques and increasing the mass of the detectors, the search for β + β + , β + EC and ECEC processes will be considerably extended.…”

Section: Introductionmentioning

confidence: 99%

New limits on the β⁺EC and ECEC processes in¹²⁰Te

Barabash

Hubert

et al. 2007

J. Phys. G: Nucl. Part. Phys.

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New limits on the double beta processes for 120 Te have been obtained using a 400 cm 3 HPGe detector and a source consisting of natural Te0 2 powder. At a confidence level of 90% the limits are 0.19 × 10 18 y for the β + EC(0ν + 2ν) transition to the ground state, 0.75 × 10 18 y for the ECEC(0ν + 2ν) transition to the first 2 + excited state of 120 Sn (1171.26 keV) and (0.19 − 0.6) × 10 18 y for different ECEC(0ν) captures to the ground state of 120 Sn.

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“…Note, that this term is currently considered [5,6] among other ones in line of phenomenological analysis of possible gauge boson interactions. Interaction (1) defines a vertex in the momentum space, which according to the approach acts in the region p 2 i < Λ 2 , where p i are three momenta of the vertex legs and the effective cut-off Λ is of the order of magnitude of few T eV [7,8]. The vertex has the form Γ abc µνρ (p, q, k) = ǫ abc λg M 2 W Γ µνρ (p, q, k) ; Γ µνρ (p, q, k) = g µν (p ρ (qk) − q ρ (pk)) + g νρ (q µ (pk) − k µ (pq)) +…”

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confidence: 99%

“…However, we are to remember, that the basic vertex (2) has cut-off Λ. In previous calculations [3,7,8] we have used Pauli-Villars type of formfactor on each gauge boson leg. Following this line let us define the following integrals…”

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confidence: 99%

“…There are experimental limitations |λ| ≤ 0.5 [12,13]. On the other hand, theoretical considerations in the framework of EW symmetry breaking model [3,4,7,8] lead to the conclusion, that λ has to be of order of magnitude of few tenths for the model being meaningful. So in our approach it seems reasonable to consider λ being close to the experimental limitation.…”

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confidence: 99%

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HERA high Q2 events as indications of excited leptons with weak isotopic spin 3/2

Arbuzov

1997

AIP Conference Proceedings

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The H1 and ZEUS anomalous events are interpreted as being due to the production and the decay of excited leptons E, which correspond to spin 1/2 resonances of the first generation lepton doublet (ν e , e) with W triplet. This assumption is supported by considering of Bethe-Salpeter equation in the ladder approximation with anomalous triple gauge boson vertex. The solution with weak isospin I = 3/2 is shown to exist for zero mass state, that means M E is small in comparison with T eV mass scale. The coupling of E with leptons and W is defined by the normalization condition. Calculation of the E width and the production cross-sections agrees with HERA data for value of the triple W coupling constant λ ≃ 0.5. Isotopic relations for different channels are presented as a tool for checking the interpretation. [2] collaborations at HERA cause a number of interpretations being proposed, which mostly deal with leptoquark possibilities. In the present note I would discuss an excited lepton as a suitable object, which could manifest itself in data [1,2]. The excited lepton is understood as a resonant state of the electron (or the electron neutrino) and W . The doublet ψ eL = (ν eL , e L ) and the W triplet have weak isotopic spin, respectively, 1/2 and 1. Thus weak isotopic spin of their resonance may be either 3/2 or 1/2. We shall see, that from the point of view of both the theoretical arguments and the experimental data, prescription I = 3/2 is the most favorable. This state E is to have large mass M ≃ 200 GeV . PACSLet us start with theoretical arguments. We consider the variant of the EW theory, in which the symmetry breaking is due to a self-consistent appearance of additional

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Erratum: Radiative corrections to the pion beta decay [JETP 59, No. 10, 671–676 (25 May 1994)]

Cited by 4 publications

References 0 publications

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

New limits on the β⁺EC and ECEC processes in¹²⁰Te

HERA high Q2 events as indications of excited leptons with weak isotopic spin 3/2

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Erratum: Radiative corrections to the pion beta decay [JETP 59, No. 10, 671–676 (25 May 1994)]

Cited by 4 publications

References 0 publications

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

Mechanism of the transport barriers formation at lower hybrid heating in the FT-2 tokamak experiments

New limits on the β+EC and ECEC processes in120Te

HERA high Q2 events as indications of excited leptons with weak isotopic spin 3/2

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Product

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New limits on the β⁺EC and ECEC processes in¹²⁰Te