Results 61 to 70 of about 49,128 (271)

Evidence for SU(3) symmetry breaking from hyperon production [PDF]

, 2001
We examine the SU(3) symmetry breaking in hyperon semileptonic decays (HSD) by considering two typical sets of quark contributions to the spin content of the octet baryons: Set-1 with SU(3) flavor symmetry and Set-2 with SU(3) flavor symmetry breaking in
A. Airapetian, A. Morelos, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.E. Bonner, B.Q. Ma, C. Boros, C. Boros, C. Boros, C. Wilkinson, D. Buskulic, F. Buccella, H.C. Kim, H.C. Kim, H.C. Kim, H.L. Lai, I. Schmidt, J. Ashman, J. Blümlein, J. Duryea, J.-J. Yang, J.-J. Yang, J.-J. Yang, J.-J. Yang, J.F. Gunion, J.F. Owens, Jian-Jun Yang, K. Ackerstaff, K. Heller, M. Bourquin, M. Bourquin, M. Hirai, M. Miyama, M. Nzar, M.R. Adams, P. Astier, P. Astier, P.L. McGaughey, P.M. Ho, R. Blankenbecler, R. Flores-Mendieta, R. Jakob, R.M. Barnett, R.P. Bickerstaff, R.S. Bhalerao, R.S. Bhalerao, R.S. Bhalerao, R.S. Bhalerao, S.J. Brodsky, S.J. Brodsky, U.K. Yang, V. Barone, V.N. Gribov, V.N. Gribov, V.V. Flambaum, Y.W. Wah   +60 more
core   +2 more sources

Decay coupling constants sum rules for dibaryon octet into two baryon octets with $λ_8$ first order SU(3) symmetry breaking [PDF]

, 2016
The SU(3) octet states with baryon number B = 2, hexaquark dibaryons, are considered. Decay coupling constants sum rules for dibaryon octet into two ordinary baryon octets with ?$\lambda_8$ first order SU(3) symmetry breaking are given. An SU(4) extension of the analysis is commented upon.
arxiv   +1 more source

Mechanical Metamaterials for Bioengineering: In Vitro, Wearable, and Implantable Applications

Advanced Engineering Materials, EarlyView.
Mechanical metamaterials with engineered architectures exhibit properties that differ from and greatly surpass those of their constituent bulk materials. This review summarizes the applications of mechanical metamaterials in bioengineering, focusing on advances in the last 5 years.
Madihah Kazim, Aniket Pal, Debkalpa Goswami   +2 more
wiley   +1 more source

Colour octet extension of 2HDM [PDF]

International Journal of Modern Physics A, 2016
In this paper we consider some aspects of the Manohar–Wise extension of the SM with a colour-octet electroweak-doublet scalar applied to 2HDM. We present theoretical constraints on the parameters of this extension to both the SM and the 2HDM and discuss related phenomenology at LHC.
openaire   +4 more sources

Phase diagram of a graphene bilayer in the zero-energy Landau level

, 2016
Bilayer graphene under a magnetic field has an octet of quasidegenerate levels due to spin, valley, and orbital degeneracies. This zero-energy Landau level is resolved into several incompressible states whose nature is still elusive.
Jolicoeur, Thierry, Knothe, Angelika
core   +2 more sources

Bioinspired Design of Isotropic Lattices with Tunable and Controllable Anisotropy

Advanced Engineering Materials, EarlyView.
This study introduces nested isotropic lattices, integrating architectural elements like nesting orders and orientations inspired by bioarchitectures. The design enables tunable anisotropy across nine mono‐nest and twenty multi‐nest lattices with 252 parametric variations, demonstrating transitions from shear‐ to tensile‐compression‐dominant behaviors ...
Ramalingaiah Boda, Biranchi Panda, Shanmugam Kumar   +2 more
wiley   +1 more source

Heavy color-octet particles at the LHC [PDF]

Journal of High Energy Physics, 2015
Many new-physics models, especially those with a color-triplet top-quark partner, contain a heavy color-octet state. The "naturalness" argument for a light Higgs boson requires that the color-octet state be not much heavier than a TeV, and thus it can be pair-produced with large cross sections at high-energy hadron colliders.
Chien-Yi Chen, Keith S. M. Lee, Keith S. M. Lee, Ayres Freitas, Tao Han   +4 more
openaire   +2 more sources

Possible assignments of the $X(3872)$, $Z_c(3900)$ and $Z_b(10610)$ as axial-vector molecular states [PDF]

, 2014
In this article, we construct both the color singlet-singlet type and octet-octet type currents to interpolate the $X(3872)$, $Z_c(3900)$, $Z_b(10610)$, and calculate the vacuum condensates up to dimension-10 in the operator product expansion.
Huang, Tao, Wang, Zhi-Gang
core   +2 more sources

The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order [PDF]

, 2018
A complete and minimal relativistic Lagrangian is constructed at next-to-leading order for SU(3) chiral perturbation theory in the presence of baryon octet and baryon decuplet states. The Lagrangian has 13 terms for the pure decuplet sector, 6 terms for the transition sector from baryon octet to decuplet and (as already known from the literature) 16 ...
arxiv   +1 more source

Geometry‐Assisted Phase Selection: Interplay of Phase Heterogeneity and Geometry in Gyroid Shell Metamaterials Printed with 17‐4 PH Stainless Steel

Advanced Engineering Materials, EarlyView.
This study explores geometry‐driven phase evolution in gyroid shell metamaterials made via laser powder bed fusion of 17‐4 precipitation hardened stainless steel. Locally hardened regions develop along the primary loading paths in the structure, which finite element analysis and geometric considerations link to enhanced gyroid strength.
Julia T. Pürstl, Brandon Fields, Patrick Ziemke, Nicolò M. della Ventura, Kate M. Ainger, Diran Apelian, Daniel S. Gianola, Matthew R. Begley, Lorenzo Valdevit   +8 more
wiley   +1 more source