Exploring the Potential Role of Diquarks in Hadronization Using Semi-inclusive Deep Inelastic Scattering on Nuclear Targets

Article Physics, Multidisciplinary

First Measurement of Lambda Electroproduction off Nuclei in the Current and Target Fragmentation Regions

T. Chetry et al.

Summary: We report the first measurements of the multiplicity ratio and transverse momentum broadening as a function of energy fraction in hyperon production in semi-inclusive deep-inelastic scattering off different targets. These results show a strong suppression at high energy fraction and an enhancement at low energy fraction. The observed transverse momentum broadening is much larger than that of light mesons, indicating a strong interaction between the propagating entity and the nuclear medium.

PHYSICAL REVIEW LETTERS (2023)

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Article Physics, Multidisciplinary

Observation of Azimuth-Dependent Suppression of Hadron Pairs in Electron Scattering off Nuclei

S. J. Paul et al.

Summary: We present the first measurement of dihadron angular correlations in electron-nucleus scattering. The results show a strong suppression effect for azimuthally opposite pairs, no suppression effect for nearby pairs, and an enhancement effect for pairs with large invariant mass. These findings indicate that angular correlation studies are important for understanding the formation and interaction of hadrons inside nuclei.

PHYSICAL REVIEW LETTERS (2022)

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Review Physics, Nuclear

Diquark correlations in hadron physics: Origin, impact and evidence

M. Yu Barabanov et al.

Summary: In the past decade, there has been a significant shift in understanding the internal structure of hadrons, with new theoretical techniques and experimental findings suggesting that soft quark+quark (diquark) correlations play a crucial role in hadron physics. These correlations are believed to be a necessary consequence of dynamical chiral symmetry breaking and may be critical for the formation of exotic tetra- and penta-quark hadrons.

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS (2021)

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Article Astronomy & Astrophysics

Estimating the color lifetime of energetic quarks

William K. Brooks et al.

Summary: By fitting published HERMES data, we determined the fundamental properties of hadronization, including extracting parameters such as color lifetime and transport coefficient from the nuclear medium. Using various parameter models, we successfully fit the data and found that the hadronic interaction of forming hadrons in the nuclear medium is the primary dynamical cause of meson attenuation in the HERMES data.

PHYSICS LETTERS B (2021)

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Article Physics, Nuclear