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Creators/Authors contains: "Shahinyan, A."

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  1. ; ; ; ; ; ; (, Review of Scientific Instruments)
    A light guide is an essential part of many scintillator counters and light collection systems. Our main interest is a light guide for a thin, wide scintillator that has high light transmission while converting the area of the light source to the shape of a photo-detector. We propose a variation of the light guide that avoids a 90° twist of the strips, reduces the length of the light pipe, and reduces the complexity of production. Detailed Monte Carlo simulation studies have been performed for a three-strip S-shaped light-guide system. 
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  2. ; ; ; ; ; ; ; ; ; ; et al (, Nature Physics)
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  3. ; ; ; ; ; ; ; ; ; ; et al (, Nature)
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  4. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review C)
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  6. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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  7. ; ; ; ; ; ; ; ; ; ; et al (, Nature)
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  8. ; ; ; ; ; ; ; ; ; ; et al (, Physical review letters)
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    We report a precision measurement of the parity-violating asymmetry APV in the elastic scattering of longitudinally polarized electrons from 208Pb. We measure APV=550±16(stat)±8(syst) parts per billion, leading to an extraction of the neutral weak form factor FW(Q2=0.00616  GeV2)=0.368±0.013. Combined with our previous measurement, the extracted neutron skin thickness is Rn−Rp=0.283±0.071  fm. The result also yields the first significant direct measurement of the interior weak density of 208Pb: ρ0W=−0.0796±0.0036(exp)±0.0013(theo)  fm−3 leading to the interior baryon density ρ0b=0.1480±0.0036(exp)±0.0013(theo)  fm−3. The measurement accurately constrains the density dependence of the symmetry energy of nuclear matter near saturation density, with implications for the size and composition of neutron stars. 
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  9. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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  10. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
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