Metal-Insulator-Semiconductor-Insulator-Metal Information Storage System With Optical Write and Read Operations

Kovtonyuk, N. F.; Морозов, В.А.; Никитин, В. В.; Popov, Yurii M; Fadin, V. G.

doi:10.1070/qe1973v002n05abeh004484

Sov. J. Quantum Electron.

1973

DOI: 10.1070/qe1973v002n05abeh004484

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Metal-Insulator-Semiconductor-Insulator-Metal Information Storage System With Optical Write and Read Operations

N. F. Kovtonyuk¹,

В.А. Морозов²,

В. В. Никитин³

et al.

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1975

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Materials for erasable optical memories (review)

Seleznev¹,

Shuikin²

1975

Sov. J. Quantum Electron.

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Recently published results from the PAMELA experiment have shown conclusive evidence for an excess of positrons at high (∼ 10 − 100 GeV) energies, confirming earlier indications from HEAT and AMS-01. Such a signal is generally expected from dark matter annihilations. However, the hard positron spectrum and large amplitude are difficult to achieve in most conventional WIMP models. The absence of any associated excess in anti-protons is highly constraining on models with hadronic annihilation modes. We revisit an earlier proposal, wherein the dark matter annihilates into a new light ( < ∼ GeV) boson φ, which is kinematically constrained to go to hard leptonic states, without anti-protons or π 0 's. We find this provides a very good fit to the data. The light boson naturally provides a mechanism by which large cross sections can be achieved through the Sommerfeld enhancement, as was recently proposed. Depending on the mass of the WIMP, the rise may continue above 300 GeV, the extent of PAMELA's ability to discriminate between electrons and positrons.

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Materials for erasable optical memories (review)

Seleznev¹,

Shuikin²

1975

Sov. J. Quantum Electron.

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show abstract

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Metal-Insulator-Semiconductor-Insulator-Metal Information Storage System With Optical Write and Read Operations

Cited by 1 publication

References 1 publication

Materials for erasable optical memories (review)

Materials for erasable optical memories (review)

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