Form factors of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Ω</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>
 in a covariant quark-diquark approach

Fu, Dongyan; Wang, JiaQi; Dong, Yubing

doi:10.1103/physrevd.108.076023

Cited by 4 publications

(1 citation statement)

References 85 publications

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“…Characterized by three valence strange quarks with aligned spins and the absence of valence up or down quarks, the Ω − is expected to show less relativistic effects in comparison with other octet and decuplet baryons. Yet, even after more than five decades of research, many aspects of its physical properties, apart from its charge and magnetic moment, remain largely uncharted [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. While the decuplet baryon model predicts a spin-3/2 for the Ω − , direct measurements of its spin have been ongoing [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Retrospective analysis of Vitamin A levels in children in Shandong, China

Zhang

Wang

et al. 2022

Preprint

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Background Vitamin A (VA) levels of children are essential for health. There is a worldwide concern in VA deficiency(VAD), which is associated with some diseases such as dry eyes, respiratory, digestive and immune system diseases in children. Objective The VA levels of children aged 0–14 years who visited our hospital located in Linqing City,Shandong Province, China from February 2019 to January 2020 were screened to provide evidence for prevention and treatment of VAD in children. Methods Children aged 0–14 years were selected as the research objects, and VA levels were determined by liquid chromatography, and the effects of gender, age and different seasons on VA levels were analyzed. Results A total of 1965 children were investigated, ranging from 0 to 14 years old. Among them, 1191 were boys, accounting for 60.61%. 774 were girls, accounting for 39.39%. The normal range of VA levels is 0.3-0.7mg/L. Based on this range, The highest rates of VAD were found in children within 1 year old. 979 (49.8%) of the VA levels were below normal. 211(10.7%)children were deficient and 768(39.1%) children were subclinical deficient. 164(63.3%)children with RRTI and RTI were deficient.467(43.4%)healthy children were deficient.One person (0.05%) exceeded the normal level value. There was no significant difference in serum VA levels between boys and girls (P > 0.05), indicating that gender difference had no effect on VA levels. However, the influence of different seasons on VA levesl were statistically significant in different age groups (P < 0.05). Conclusion Nearly half of the children's VA levels were lower than normal value, which was related to age and season, but not gender. Children with RRTI and RTI had much lower VA levels than healthy children.

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Section: Introductionmentioning

confidence: 99%

Retrospective analysis of Vitamin A levels in children in Shandong, China

Zhang

Wang

et al. 2022

Preprint

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Gravitational form factors of the Δ baryon via QCD sum rules

Dehghan,

Azizi,

Özdem

2023

Phys. Rev. D

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Refined analysis of Ω−Ω¯+ polarization in electron-pos

Zhang,

Song,

Zhou

2024

Phys. Rev. D

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We investigate the production of spin-3/2 hyperon pairs, Ω−Ω¯+, in electron-positron annihilation within the helicity formalism. A refined selection of helicity basis matrices is proposed to relate polarization expansion coefficients and spin density matrix elements and to illuminate their inherent physical interpretations and symmetrical properties. With a novel parametrization scheme of helicity amplitudes, we perform an analysis of polarization correlation coefficients for double-tag Ω−Ω¯+ pairs. We present three sets of expressions to describe the decay of Ω− hyperons, and further address the existing tension in the measurements of its decay parameters, particularly ϕΩ. The method and the framework developed in this paper can also be applied to studies of the production and decay mechanisms of other spin-3/2 particles. Published by the American Physical Society 2024

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Form factors of Ω− in a covariant quark-diquark approach

Cited by 4 publications

References 85 publications

Retrospective analysis of Vitamin A levels in children in Shandong, China

Retrospective analysis of Vitamin A levels in children in Shandong, China

Gravitational form factors of the Δ baryon via QCD sum rules

Refined analysis of Ω−Ω¯+ polarization in electron-pos

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