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Andreas Pfeiffer

Researcher at CERN

Publications -  1920
Citations -  147114

Andreas Pfeiffer is an academic researcher from CERN. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 149, co-authored 1756 publications receiving 131080 citations. Previous affiliations of Andreas Pfeiffer include Heidelberg University & Paul Scherrer Institute.

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Journal ArticleDOI

Observation of Z decays to four leptons with the CMS detector at the LHC

S. Chatrchyan, +2257 more
- 07 Dec 2012 - 
TL;DR: The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented in this article, where a pronounced resonance peak, with a statistical significance of 9.7 σ, is observed in the distribution of the invariant mass of four lepton (electrons and/or muons) with mass and width consistent with expectations for z boson decays.
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Measurement of charged pion, kaon, and proton production in proton-proton collisions at √s = 13 TeV

Albert M. Sirunyan, +2234 more
- 05 Dec 2017 - 
TL;DR: In this article, the transverse momentum spectra of charged pions, kaons, and protons are measured in proton-proton collisions at root s = 13 TeV with the CMS detector at the LHC.
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δ versus μ receptors: cardiovascular and respiratory effects of opiate agonists microinjected into nucleus tractus solitarius of cats

A.H. Hassen, +3 more
- 01 Nov 1982 - 
TL;DR: Data show that the δ opiate agonist is more effective than μ agonists in modifying cardiovascular variables in the NTS; it is suggested caution in relating specific cardiovascular function to receptor subtypes defined by binding assays.
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Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at root s=13TeV

Albert M. Sirunyan, +2263 more
- 03 Mar 2019 - 
TL;DR: A search for a heavy pseudoscalar boson decaying to a Z boson and a Higgs boson with mass of 125 that decays either into a pair of electrons, muons, or neutrinos is presented.
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Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV

Vardan Khachatryan, +2200 more
- 20 Dec 2010 - 
TL;DR: In this article, a search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at sqrt(s) = 7 TeV, is described.