Determining the content and binding energy of hydrogen in diamond films

Polyanskiy, A. M.; Polyanskiy, Vladimir A.; Yakovlev, Yu. A.; Феоктистов, Н. А.; Golubev, V. G.; Vul, A. Ya.

doi:10.1134/s1063785015060127

Cited by 18 publications

(36 citation statements)

References 11 publications

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“…encouraging results have been obtained recently with diamond films, using industrial hydrogen analyzer and hydrogen extraction at high temperature [35]. [37] which resulted from incomplete oxidation of graphitic phase during purification.…”

Section: Characterisation Of Hfndmentioning

confidence: 99%

Novel synthesis and properties of hydrogen-free detonation nanodiamond

Бацанов

Осавчук

Naumov

et al. 2018

Materials Chemistry and Physics

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Section: Characterisation Of Hfndmentioning

confidence: 99%

Novel synthesis and properties of hydrogen-free detonation nanodiamond

Бацанов

Осавчук

Naumov

et al. 2018

Materials Chemistry and Physics

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“…[1,2,3,4,5] for comprehensive reviews on the current status. For the φ-meson, although the precise values are different, a large inmedium broadening of its decay width has been reported by most of the experiments performed, while only a few of them find evidence for a substantial mass shift [20,34,35,36,37,38]. In 2007 the KEK-E325 collaboration reported a 3.4% mass reduction of the φ-meson [34] and an in-medium decay width of ≈ 14.5 MeV at normal nuclear matter density ρ 0 = 0.15 fm −3 .…”

Section: Introductionmentioning

confidence: 99%

“…Even though this result may indicate a signal for partial restoration of chiral symmetry in nuclear matter, it is not possible to draw a definite conclusion solely from this. In fact, recently, a large in-medium φ-meson decay width (> 30 MeV) has been extracted at various experimental facilities without observing any mass shift [20,35,36,37,38]. It is therefore clear that the search for evidence of a light vector meson mass shift in nuclear matter is indeed a complicated issue and further experimental efforts [32,39] are required in order to understand the phenomenon better.…”

Section: Introductionmentioning

confidence: 99%

Partial restoration of chiral symmetry in cold nuclear matter: theϕ-meson case

Cobos-Martínez

Tsushima

Krein

et al. 2017

J. Phys.: Conf. Ser.

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The work presented at this workshop is divided into two parts. In the first part, the mass and decay width of the φ-meson in cold nuclear matter are computed in an effective Lagrangian approach. The medium dependence of these properties are obtained by evaluating kaon-antikaon loop contributions to the φ-meson self-energy, employing medium-modified kaon masses calculated using the quark-meson coupling model. The loop integral is regularized with a dipole form factor, and the sensitivity of the results to the choice of cutoff mass in the form factor is investigated. At normal nuclear matter density, we find a downward shift of the φ mass by a few percent, while the decay width is enhanced by an order of magnitude. Our results support the literature which suggest that one should observe a small downward mass shift and a large broadening of the decay width. In the second part, we present φ-meson-nucleus bound state energies and absorption widths for four selected nuclei, calculated by solving the Klein-Gordon equation with complex optical potentials. The attractive potential for the φmeson in the nuclear medium originates from the in-medium enhanced KK loop in the φ-meson selfenergy. The results suggest that the φ-meson should form bound states with all the nuclei considered. However, the identification of the signal for these predicted bound states will need careful investigation because of their sizable absorption widths. 5 Speaker arXiv:1711.06358v1 [nucl-th]

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“…Furthermore, the change of the spectral function should not be considered to be a simple mass shift of the ground state peak, but rather a combination of mass shift and some sort of broadening for which the sum rules give only a weak constraint [4]. For the φ, these issues are less severe because the sum rule input depends much less on the four-quark condensate and its broadening at nuclear matter density has been estimated to be well below 100 MeV [5]. We will therefore concentrate our efforts on the φ-meson in this work [6].…”

Section: Introductionmentioning

confidence: 99%