重叠
发表于 2025-3-26 23:12:37
: the fields should turn off their separate and narrow paths and construct a new avenue of research. An essential direction for this avenue is context as given in the subtitle Integration of Information Seeking and Retrieval in Context. Other essential themes in the book include: ..IS&R research mod
裂缝
发表于 2025-3-27 04:46:35
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光明正大
发表于 2025-3-27 09:06:29
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肿块
发表于 2025-3-27 11:10:32
Introduction to Instantons,he trivial vacuum sector corresponding to the vanishing of vacuum fields . = 0. (small oscillations near . = 0 are accounted for by perturbation theory) there are infinitely many other sectors in which the vacuum field (.). yields . = 0 and, still, cannot be reduced to . = 0 by any continuous gauge
红肿
发表于 2025-3-27 15:36:54
Relevance of Instantons, . = 0. Then the Minkowski-space vacuum solutions are time-independent pure gauge fields: . we restrict ourselves to a class of solutions for which . i.e. in all direction. This compactifies ℝ. to a three sphere .. This is a mapping of three space with all points at infinity to the identity element
淘气
发表于 2025-3-27 19:39:52
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agonist
发表于 2025-3-27 23:55:41
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flex336
发表于 2025-3-28 02:58:08
QCD Sum Rules,pling .(.) ≡ .(.)/4., characterizing interactions at momenta ., where . = −. (at distances . ≈ .). The asymptotic freedom (., 1973; . and ., 1973) takes place for .(.) ≈ 2./(9 ln ./.) (for 3 flavours). Because of logarithmic fall off of the coupling the structure of the theory at short distance is s
MOAN
发表于 2025-3-28 08:07:32
0939-1150 totypical methods of particlephysics are adopted by nuclear physics. The authors try tobuild bridges between both fields and give nuclearphysicists a thorough introduction from the fundamentalsofparticle physics to current research in this field.Contents:-Introduction- Preliminaries and Simple Model
万灵丹
发表于 2025-3-28 11:03:28
Book 1994methods of particlephysics are adopted by nuclear physics. The authors try tobuild bridges between both fields and give nuclearphysicists a thorough introduction from the fundamentalsofparticle physics to current research in this field.Contents:-Introduction- Preliminaries and Simple Models- Current