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Dive into the research topics where G. Cheng is active.

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Featured researches published by G. Cheng.


Physical Review Letters | 2013

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A. A. Aguilar-Arevalo; B. C. Brown; L. Bugel; G. Cheng; E. Church; J. M. Conrad; R. Dharmapalan; Z. Djurcic; D. A. Finley; R. Ford; F. G. Garcia; G. T. Garvey; J. Grange; W. Huelsnitz; C. Ignarra; R. Imlay; R. A. Johnson; G. Karagiorgi; T. Katori; T. Kobilarcik; W. C. Louis; C. Mariani; W. Marsh; G. B. Mills; J. Mirabal; C. D. Moore; J. Mousseau; P. Nienaber; B. Osmanov; Z. Pavlovic

The MiniBooNE experiment at Fermilab reports results from an analysis of ν¯e appearance data from 11.27×10²⁰ protons on target in the antineutrino mode, an increase of approximately a factor of 2 over the previously reported results. An event excess of 78.4±28.5 events (2.8σ) is observed in the energy range 200QEν<1250 MeV. If interpreted in a two-neutrino oscillation model, ν¯μ→ν¯e, the best oscillation fit to the excess has a probability of 66% while the background-only fit has a χ² probability of 0.5% relative to the best fit. The data are consistent with antineutrino oscillations in the 0.01<Δm²<1.0 eV² range and have some overlap with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector. All of the major backgrounds are constrained by in situ event measurements so nonoscillation explanations would need to invoke new anomalous background processes. The neutrino mode running also shows an excess at low energy of 162.0±47.8 events (3.4σ) but the energy distribution of the excess is marginally compatible with a simple two neutrino oscillation formalism. Expanded models with several sterile neutrinos can reduce the incompatibility by allowing for CP violating effects between neutrino and antineutrino oscillations.The MiniBooNE experiment at Fermilab reports results from an analysis of the combined


Physical Review Letters | 2012

\bar \nu_\mu \rightarrow \bar \nu_e

A. A. Aguilar-Arevalo; B. C. Brown; L. Bugel; G. Cheng; E. Church; J. Conrad; R. Dharmapalan; Z. Djurcic; D. A. Finley; R. Ford; F. G. Garcia; G. T. Garvey; J. Grange; W. Huelsnitz; C. Ignarra; R. Imlay; R. A. Johnson; G. Karagiorgi; T. Katori; T. Kobilarcik; W. C. Louis; Carlo Mariani; W. Marsh; G. B. Mills; J. Mirabal; C. D. Moore; J. Mousseau; P. Nienaber; B. Osmanov; Z. Pavlovic

\nu_e


Physical Review D | 2008

Oscillations in the MiniBooNE Experiment

K. Hiraide; J. L. Alcaraz-Aunion; S. J. Brice; L. Bugel; J. Catala-Perez; G. Cheng; J. M. Conrad; Z. Djurcic; U. Dore; D. A. Finley; A. J. Franke; C. Giganti; J. J. Gomez-Cadenas; P. Guzowski; Andrew J. Hanson; Y. Hayato; G. Jover-Manas; G. Karagiorgi; T. Katori; Y. K. Kobayashi; T. Kobilarcik; H. Kubo; Y. Kurimoto; W. C. Louis; P. Loverre; L. Ludovici; K. B. M. Mahn; Carlo Mariani; S. Masuike; K. Matsuoka

and


Physical Review D | 2011

A Combined

Y. Nakajima; J. L. Alcaraz-Aunion; S. J. Brice; L. Bugel; J. Catala-Perez; G. Cheng; J. M. Conrad; Z. Djurcic; U. Dore; D. A. Finley; A. J. Franke; C. Giganti; J.J. Gómez-Cadenas; P. Guzowski; Andrew J. Hanson; Y. Hayato; K. Hiraide; G. Jover-Manas; G. Karagiorgi; T. Katori; Y. K. Kobayashi; T. Kobilarcik; H. Kubo; Y. Kurimoto; W. C. Louis; P. Loverre; L. Ludovici; K. Mahn; Camillo Mariani; S. Masuike

\bar \nu_e


Physical Review D | 2015

\nu_\mu \to \nu_e

A. A. Aguilar-Arevalo; B. C. Brown; L. Bugel; G. Cheng; E. Church; J. M. Conrad; R. Dharmapalan; Z. Djurcic; D. A. Finley; R. Ford; F. G. Garcia; G. T. Garvey; J. Grange; W. Huelsnitz; C. Ignarra; R. Imlay; R. A. Johnson; G. Karagiorgi; T. Katori; T. Kobilarcik; W. C. Louis; C. Mariani; W. Marsh; G. B. Mills; J. Mirabal; C. D. Moore; J. Mousseau; P. Nienaber; B. Osmanov; Z. Pavlovic

appearance data from


Physical Review D | 2010

and

Y. Kurimoto; J. L. Alcaraz-Aunion; S. J. Brice; L. Bugel; J. Catala-Perez; G. Cheng; J. M. Conrad; Z. Djurcic; U. Dore; D. A. Finley; A. J. Franke; C. Giganti; J. J. Gomez-Cadenas; P. Guzowski; Andrew J. Hanson; Y. Hayato; K. Hiraide; G. Jover-Manas; G. Karagiorgi; T. Katori; Y. K. Kobayashi; T. Kobilarcik; H. Kubo; W. C. Louis; P. Loverre; L. Ludovici; K. Mahn; Camillo Mariani; S. Masuike; K. Matsuoka

6.46 \times 10^{20}


Physical Review D | 2011

\bar\nu_\mu \to \bar\nu_e

G. Cheng

protons on target in neutrino mode and


Physical Review D | 2010

Oscillation Analysis of the MiniBooNE Excesses

Y. Kurimoto; J. L. Alcaraz-Aunion; S. J. Brice; L. Bugel; J. Catala-Perez; G. Cheng; J. M. Conrad; Z. Djurcic; U. Dore; D. A. Finley; A. J. Franke; C. Giganti; J. J. Gomez-Cadenas; P. Guzowski; Andrew J. Hanson; Y. Hayato; K. Hiraide; G. Jover-Manas; G. Karagiorgi; T. Katori; Y. K. Kobayashi; T. Kobilarcik; H. Kubo; W. C. Louis; P. Loverre; L. Ludovici; K. Mahn; Camillo Mariani; S. Masuike; K. Matsuoka

11.27 \times 10^{20}


arXiv: High Energy Physics - Experiment | 2014

Search for Charged Current Coherent Pion Production on Carbon in a Few-GeV Neutrino Beam

A. A. Aguilar-Arevalo; B. C. Brown; L. Bugel; G. Cheng; E. Church; J. M. Conrad; R. Dharmapalan; Z. Djurcic; D. A. Finley; R. Ford; F. G. Garcia; G. T. Garvey; J. Grange; W. Huelsnitz; C. Ignarra; R. Imlay; R. A. Johnson; G. Karagiorgi; T. Katori; T. Kobilarcik; W. C. Louis; Camillo Mariani; W. Marsh; G. B. Mills; J. Mirabal; C. D. Moore; J. Mousseau; P. Nienaber; B. Osmanov; Z. Pavlovic

protons on target in antineutrino mode. A total excess of


Physical Review D | 2010

Measurement of inclusive charged current interactions on carbon in a few-GeV neutrino beam

Y. Kurimoto; J. L. Alcaraz-Aunion; S. J. Brice; L. Bugel; J. Catala-Perez; G. Cheng; J. M. Conrad; Z. Djurcic; U. Dore; D. A. Finley; A. J. Franke; C. Giganti; J.J. Gómez-Cadenas; P. Guzowski; Andrew J. Hanson; Y. Hayato; K. Hiraide; G. Jover-Manas; G. Karagiorgi; T. Katori; Y. K. Kobayashi; T. Kobilarcik; H. Kubo; W. C. Louis; P. Loverre; L. Ludovici; K. B. M. Mahn; Carlo Mariani; S. Masuike; K. Matsuoka

240.3 \pm 34.5 \pm 52.6

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W. C. Louis

Los Alamos National Laboratory

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L. Bugel

Massachusetts Institute of Technology

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T. Katori

Queen Mary University of London

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C. Ignarra

Massachusetts Institute of Technology

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J. Mirabal

Los Alamos National Laboratory

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