Articles with "bar sigma" as a keyword



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Degradation Characteristics of the Optical Constants of PE-LD Film-Covered Greenhouses in an Arid Climate

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Published in 2019 at "International Journal of Thermophysics"

DOI: 10.1007/s10765-019-2528-y

Abstract: This study is to describe the degradation behavior of the optical constants (refractive index $$ \bar{n} $$n¯ and extinction coefficient $$ \bar{\sigma } $$σ¯) of PE-LD sheets during exposure to an arid climate. Values of… read more here.

Keywords: bar sigma; degradation; arid climate; bar ... See more keywords
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Heavy quark spin multiplet structure of $\bar{P}^{(*)}\Sigma_Q^{(*)}$ molecular states

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Published in 2018 at "Physical Review D"

DOI: 10.1103/physrevd.98.014021

Abstract: We study the structure of heavy quark spin (HQS) multiplets for heavy meson-baryon molecular states in a coupled system of $\bar{P}^{(*)}\Sigma_{Q}^{(*)}$, with constructing the one-pion exchange potential with S-wave orbital angular momentum. Using the light… read more here.

Keywords: heavy quark; bar sigma; molecular states; quark spin ... See more keywords