Abstract The full-heavy tetraquarks $$cc{\bar{c}}{\bar{b}}$$ c ¯ b and $$bb{\bar{b}}{\bar{c}}$$ are systematically investigated within a quark model. meson–meson structure, diquark–antidiquark structure K-structure considered in...

We present CO (J = 1 → 0) and CO (J = 2 → 1) spectra for 19 bright, late–type galaxies (spirals) in the central region of the galaxy cluster Abell 1367 (z = 0.02) from observations made with the IRAM 30–m telescope. All 19 spirals were observed at the position of their optical center and for a subset, at multiple positions. For each spiral the integrated CO (J = 1 → 0) intensity from the centra...

Particulate air pollution, specifically the fine particle fraction (PM2.5), has been associated with increased cardiopulmonary morbidity and mortality in general population studies. Occupational exposure to fine particulate matter can exceed ambient levels by a large factor. Due to increased interest in the health effects of particulate matter, many particle sampling methods have been developed...

A contact interaction analysis is presented to search for new phenomena beyond the Standard Model in deep inelastic ep → e hadrons scattering. The data are collected with the H1 detector at HERA and correspond to integrated luminosities of 0.909 pb and 2.947 pb for electron and positron beams, respectively. The differential cross sections dσ/dQ are measured in the Q range between 160 GeV and 20...