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Landau–Yang theorem

Known as: Landau-Yang theorem 
In quantum mechanics, the Landau–Yang theorem is a selection rule for particles that decay into two photons. The theorem states that a massive… 
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2 relations
Quantum mechanicsSelection rule

Papers overview

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2018
2018
Scattering equations and a new factorization for amplitudes. Part I. Gauge theories
In this work we show how a double-cover (DC) extension of the Cachazo, He and Yuan formalism (CHY) can be used to provide a new… 
2012
2012
Chern-Simons diffusion rate in strongly coupled N = 4 SYM plasma in an external magnetic field
We calculate the Chern-Simons diffusion rate in a strongly coupled N=4 SUSY Yang-Mills plasma in the presence of a constant… 
2006
2006
Comparative Study of Laser Induced Damage in Silicon Wafers
In this paper we present different possibilities like QSSPC lifetime measurements, X-ray diffraction and defect etch to measure… 
2006
2006
Phylogeny of the subfamily Chauliodinae (Megaloptera: Corydalidae), with description of a new genus from the Oriental Realm
Abstract A new Oriental fishfly genus, Sinochauliodesgen.n., is described, including four species: S. fujianensis ( Yang & Yang… 
2004
2004
On the Coulomb Branch of a Marginal Deformation of N = 4 SUSY
We determine the exact vacuum structure of a marginal deformation of N = 4 SUSY Yang-Mills with gauge group U(N). The Coulomb… 
Highly Cited
2001
Highly Cited
2001
Cenozoic extension and magmatism in the North American Cordillera: the role of gravitational collapse
1999
1999
Photodetachment cross section of H − in a gradient electric field
Based on closed orbit theory, we derive a simple analytic formula for the photodetachment cross section of H- in a gradient… 
1994
1994
Non-Abelian strong-weak coupling duality in (string-derived) N=4 supersymmetric Yang-Mills theories☆
1991
1991
Large Scale Hexagonal Domainlike Structures Superimposed on the Atomic Corrugation of a Graphite Surface Observed by Scanning Tunneling Microscopy
Langmuir is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Large scale hexagonal… 
1991
1991
A high speed systolic architecture for labeling connected components in an image
Connected components detection and labeling is an essential step in many image analysis techniques. The efficiency of the… 
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