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Two component pseudo-Nambu-Goldstone-boson dark matter

We study a two-component pseudo-Nambu-Goldstone-boson (pNGB) dark matter (DM) model motivated by boosted dark matter (BDM). The model is based on a complex scalar field charged under a dark $\text{U}(1)_V$ gauge symmetry, with a softly broken global $\text{SU}(3)_g$ symmetry that is spontaneously …

Riasat Sheikh

• Apr 14, 2026 • 1 min read

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Ecology and Conservation Strategy of Bats in Rural Area

This study was conducted in a 1100 square kilometer area between the Beki and Manas Rivers, extending from the railway line in the north to the Brahmaputra River in the south. Three bat species were identified: Indian Fruit Bat, Leaf-Nosed Bat, and Chungabaduli.

Riasat Sheikh

• Aug 1, 2007 • 1 min read

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Manuscript

Two component pseudo-Nambu-Goldstone-boson dark matter

Ecology and Conservation Strategy of Bats in Rural Area