- Peking UniversityCN815 papers
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95 papers · 1 filter
Direct Measurements of the Branching Fractions for Inclusive and Inclusive Semileptonic Decays of and Mesons
BES Collaboration
With singly-tagged samples selected from the data collected at and around 3.773 GeV with the BESII detector at the BEPC collider, we have measured the branching fractions…
Proof of the Somos-4 Hankel Determinants Conjecture
Guoce Xin
By considering the fundamental equation , Somos conjectured that the Hankel determinants for the generating series are the Somos-4 numbers. We prove this conj…
Applying Bayesian Neural Networks to Event Reconstruction in Reactor Neutrino Experiments
Ye Xu, Weiwei Xu, Yixiong Meng +2
A toy detector has been designed to simulate central detectors in reactor neutrino experiments in the paper. The electron samples from the Monte-Carlo simulation of the toy detecto…
Exact solutions of embedding the four-dimensional perfect fluid in a five- or higher-dimensional Einstein spacetime and the cosmological interpretations
Jie Ren, Xin-He Meng, Liu Zhao
We investigate an exact solution that describes the embedding of the four-dimensional (4D) perfect fluid in a five-dimensional (5D) Einstein spacetime. The effective metric of the…
Baryon number violation and a new electroweak interaction
M. N. Chernodub, Antti J. Niemi
We introduce a new supercurrent in the electroweak sector of the standard model. Its interaction with the hypergauge field influences the mass of the Z boson but has no effect on t…
Observation of Y(2175) in
BES Collaboration, M. Ablikim
The decays of are analyzed using a sample of events collected with the BESII detector at the…