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In computer science, a Program Dependence Graph ( PDG) is a representation of a program's control and data dependencies. It's a directed graph where nodes represent program statements, and edges represent dependencies between these statements. PDGs are useful in various program analysis tasks, including optimizations, debugging, and ...
Particle Data Group. The Particle Data Group ( PDG) is an international collaboration of particle physicists that compiles and reanalyzes published results related to the properties of particles and fundamental interactions. It also publishes reviews of theoretical results that are phenomenologically relevant, including those in related fields ...
The gamma distribution is the maximum entropy probability distribution (both with respect to a uniform base measure and a base measure) for a random variable X for which E[X] = kθ = α/β is fixed and greater than zero, and E[ln X] = ψ(k) + ln θ = ψ(α) − ln β is fixed ( ψ is the digamma function ). [1]
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t. e. In particle physics, the Pontecorvo–Maki–Nakagawa–Sakata matrix ( PMNS matrix ), Maki–Nakagawa–Sakata matrix ( MNS matrix ), lepton mixing matrix, or neutrino mixing matrix is a unitary [a] mixing matrix which contains information on the mismatch of quantum states of neutrinos when they propagate freely and when they take part ...
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Pion decay constant. In particle physics, the pion decay constant is the square root of the coefficient in front of the kinetic term for the pion in the low-energy effective action. It is dimensionally an energy scale and it determines the strength of the chiral symmetry breaking. The values are: