Xinmei Niu

Massachusetts Institute of Technology

705 Papers

1.9K Citations

Xinmei Niu is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Large Hadron Collider & Standard Model. The author has an hindex of 78, co-authored 657 publications. Previous affiliations of Xinmei Niu include Université libre de Bruxelles & Ghent University.

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Papers

•Journal Article•10.1007/JHEP11(2019)082

Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV

Albert M. Sirunyan, +2357 more

- 06 Jun 2019

- Journal of High Energy Physics

TL;DR: In this paper, a search for the standard model production of four top quarks (pp → tt¯tt¯) is reported using single-lepton plus jets and opposite-sign dilepton plus jet signatures.

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•Journal Article•10.1140/EPJC/S10052-019-7387-Y

Search For New Physics In Top Quark Production In Dilepton Final States In Proton-Proton Collisions At Root S=13 Tev

Albert M. Sirunyan, +2254 more

- 01 Nov 2019

- European Physical Journal C

TL;DR: This analysis differs from previous searches for new physics in the top quark sector by explicitly separating t W from t t ¯ events and exploiting the specific sensitivity of the t W process to new physics.

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•Journal Article•10.1140/EPJC/S10052-016-4346-8

Measurement of dijet azimuthal decorrelation in pp collisions at √s=8TeV

Vardan Khachatryan, +2260 more

- 30 Sep 2016

- European Physical Journal C

TL;DR: In this article, a measurement of the decorrelation of azimuthal angles between the two jets with the largest transverse momenta is presented for seven regions of leading jet transverse momentum up to 2.2 TeV.

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•Journal Article•10.1016/J.PHYSLETB.2017.01.011

Measurement of the WZ production cross section in pp collisions at s=13 TeV

Vardan Khachatryan, +2287 more

- 10 Mar 2017

- Physics Letters B

TL;DR: The WZ production cross section in proton-proton collisions at squarert(s) = 13 TeV is measured with the CMS experiment at the LHC using a data sample corresponding to an integrated luminosity of 2.3 inverse femtobarns.

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•Journal Article•10.1007/JHEP05(2017)013

Observation of Y(1S) Pair Production in Proton-Proton Collisions at √s = 8 TeV

Vardan Khachatryan, +2340 more

- 03 May 2017

- Journal of High Energy Physics

TL;DR: In this article, the fiducial cross section for the production of Upsilon(1S) pairs, assuming that both mesons decay isotropically, is measured to be 688 +/- 127 (stat) +/- 74 (syst) +/- 28 (B) pb.

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