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Author

Jie Zhang

Other affiliations: University of Bedfordshire, CERN, Xidian University  ...read more
Bio: Jie Zhang is an academic researcher from East China University of Science and Technology. The author has contributed to research in topics: Medicine & Large Hadron Collider. The author has an hindex of 178, co-authored 4857 publications receiving 221720 citations. Previous affiliations of Jie Zhang include University of Bedfordshire & CERN.


Papers
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Journal ArticleDOI
Georges Aad1, Brad Abbott2, Jalal Abdallah, A. A. Abdelalim3  +3021 moreInstitutions (179)
TL;DR: A measurement of the production cross section of top quark pairs (ttbar) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported in this article.

70 citations

Journal Article
TL;DR: In this paper, the decay mode B γ → ppK γ was observed and the branching fraction for this decay was measured to be B(B γ ) = [4.3 + 1. 1 - 0. 9 (stat) ′ 0.5(syst)] X 10 - 6.
Abstract: We report the observation of the decay mode B γ → ppK γ based on an analysis of 29.4 fb - 1 of data collected by the Belle detector at KEKB. This is the first example of a b → s transition with baryons in the final state.The pp mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B γ → ppK γ ) = [4.3 + 1 . 1 - 0 . 9 (stat) ′ 0.5(syst)] X 10 - 6 . We also report upper limits for the decays B 0 → ppK S and B γ → ppπ γ .

70 citations

Journal ArticleDOI
Morad Aaboud, Georges Aad1, Brad Abbott2, Jalal Abdallah3  +2831 moreInstitutions (107)
TL;DR: In this article, a statistical analysis leads to confidence-level upper limits on the production cross section times branching fraction, between 1.9 pb and 15 fb, for charged Higgs boson masses ranging from 200 to 2000 GeV.

70 citations

Journal ArticleDOI
Albert M. Sirunyan1, Armen Tumasyan1, Wolfgang Adam, Federico Ambrogi  +2361 moreInstitutions (173)
TL;DR: In this paper, a search for long-lived charged particles that decay within the volume of the silicon tracker of the LHC experiment is presented for events with this "disappearing track" signature.

70 citations

Journal ArticleDOI
Morad Aaboud, Georges Aad1, Brad Abbott2, Ovsat Abdinov3  +2896 moreInstitutions (193)
TL;DR: In this paper, a search for new light resonances decaying to pairs of quarks and produced in association with a high- pT photon or jet is presented, but no evidence of new resonance is observed in the data, which are used to exclude the production of a lepto-phobic axial-vector Z′ boson.

70 citations


Cited by
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Journal ArticleDOI

[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

Journal ArticleDOI
TL;DR: This study enters into the particular topics of the relative quantification in real-time RT-PCR of a target gene transcript in comparison to a reference gene transcript and presents a new mathematical model that needs no calibration curve.
Abstract: Use of the real-time polymerase chain reaction (PCR) to amplify cDNA products reverse transcribed from mRNA is on the way to becoming a routine tool in molecular biology to study low abundance gene expression. Real-time PCR is easy to perform, provides the necessary accuracy and produces reliable as well as rapid quantification results. But accurate quantification of nucleic acids requires a reproducible methodology and an adequate mathematical model for data analysis. This study enters into the particular topics of the relative quantification in real-time RT–PCR of a target gene transcript in comparison to a reference gene transcript. Therefore, a new mathematical model is presented. The relative expression ratio is calculated only from the real-time PCR efficiencies and the crossing point deviation of an unknown sample versus a control. This model needs no calibration curve. Control levels were included in the model to standardise each reaction run with respect to RNA integrity, sample loading and inter-PCR variations. High accuracy and reproducibility (<2.5% variation) were reached in LightCycler PCR using the established mathematical model.

30,462 citations

Journal ArticleDOI
Claude Amsler1, Michael Doser2, Mario Antonelli, D. M. Asner3  +173 moreInstitutions (86)
TL;DR: This biennial Review summarizes much of particle physics, using data from previous editions.

12,798 citations