Results 1 to 10 of about 252,163 (72)

Deep exclusive electroproduction of $π^0$ at high $Q^2$ in the quark valence regime [PDF]

Phys. Rev. Lett. 127, 152301 (2021), 2020
We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of $x_B$ (0.36, 0.48 and 0.60) and $Q^2$ (3.1 to 8.4 GeV$^2$) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions $d\sigma_L/dt+\epsilon d\sigma_T/dt$, $d\sigma_{TT}/dt$, $d\sigma_{LT}/dt$ and $d ...
arxiv   +1 more source

Graph Universal Cycles: Compression and Connections to Universal Cycles [PDF]

Advances in Applied Mathematics, Volume 148, July 2023, Article 102522, 2022
Universal cycles, such as De Bruijn cycles, are cyclic sequences of symbols that represent every combinatorial object from some family exactly once as a consecutive subsequence. Graph universal cycles are a graph analogue of universal cycles introduced in 2010. We introduce graph universal partial cycles, a more compact representation of graph classes,
arxiv   +1 more source

Validation of the HERA Phase I Epoch of Reionization 21 cm Power Spectrum Software Pipeline [PDF]

, 2021
We describe the validation of the HERA Phase I software pipeline by a series of modular tests, building up to an end-to-end simulation. The philosophy of this approach is to validate the software and algorithms used in the Phase I upper limit analysis on wholly synthetic data satisfying the assumptions of that analysis, not addressing whether the ...
arxiv   +1 more source

Intrinsically Universal Cellular Automata [PDF]

EPTCS 1, 2009, pp. 199-204, 2009
This talk advocates intrinsic universality as a notion to identify simple cellular automata with complex computational behavior. After an historical introduction and proper definitions of intrinsic universality, which is discussed with respect to Turing and circuit universality, we discuss construction methods for small intrinsically universal cellular
arxiv   +1 more source

A Conversation with Seymour Geisser [PDF]

Statistical Science 2007, Vol. 22, No. 4, 621-636, 2008
Seymour Geisser received his bachelor's degree in Mathematics from the City College of New York in 1950, and his M.A. and Ph.D. degrees in Mathematical Statistics at the University of North Carolina in 1952 and 1955, respectively. He then held positions at the National Bureau of Standards and the National Institute of Mental Health until 1961.
arxiv   +1 more source

Discrete universality, continuous universality and hybrid universality are equivalent [PDF]

arXiv, 2023
Recently Sourmelidis proved that the discrete universality theorem is equivalent to the continuous universality theorem for zeta-functions. He treats both the zero-free universality theorem and the strong universality theorem. Unfortunately in the zero-free case his result is conditional on a Riemann hypothesis, and in the strong universality case he ...
arxiv  

Emergent Universe Scenario, Bouncing and Cyclic Universes in Degenerate Massive Gravity [PDF]

Phys. Rev. D 99, 104057 (2019), 2019
We consider alternative inflationary cosmologies in massive gravity with degenerate reference metrics and study the feasibilities of the emergent universe scenario, bouncing and cyclic universes. We focus on the construction of the Einstein static universe, classes of exact solutions of bouncing and cyclic universes in degenerate massive gravity.
arxiv   +1 more source

Comparing Production Cross Sections for QCD Matter, Higgs Boson, Neutrino with Dark Energy in Accelerating Universe [PDF]

, 2016
In this research, the production cross sections for QCD matter, neutrino and dark energy due to acceleration of Universe is calculated. To obtain these cross sections, the Universe production cross section is multiplied by the particle or dark energy distribution in accelerating Universe.
arxiv   +1 more source

Infinitely many absolute universes [PDF]

arXiv, 2023
Absolute combinatorial game theory was recently developed as a unifying tool for constructive/local game comparison (Larsson et al. 2018). The theory concerns {\em parental universes} of combinatorial games; standard closure properties are satisfied and each pair of non-empty sets of forms of the universe makes a form of the universe.
arxiv  

On universal operators and universal pairs [PDF]

arXiv, 2017
We study some basic properties of the class of universal operators on Hilbert space, and provide new examples of universal operators and universal pairs.
arxiv