A Townsend
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Explore the profile of A Townsend including associated specialties, affiliations and a list of published articles.
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136
Citations
2724
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Recent Articles
21.
Aad G, Abbott B, Abeling K, Abicht N, Abidi S, Aboulhorma A, et al.
Phys Rev Lett
. 2024 Jan;
132(2):021803.
PMID: 38277607
The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from...
22.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Damanakis K, Dragicevic M, et al.
Phys Rev Lett
. 2024 Jan;
131(26):262301.
PMID: 38215362
Quasireal photons exchanged in relativistic heavy ion interactions are powerful probes of the gluonic structure of nuclei. The coherent J/ψ photoproduction cross section in ultraperipheral lead-lead collisions is measured as...
23.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Damanakis K, et al.
Eur Phys J C Part Fields
. 2023 Oct;
83(10):963.
PMID: 37906635
The mass of the top quark is measured in 36.3 of LHC proton-proton collision data collected with the CMS detector at . The measurement uses a sample of top quark...
24.
Observation of τ Lepton Pair Production in Ultraperipheral Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Damanakis K, et al.
Phys Rev Lett
. 2023 Oct;
131(15):151803.
PMID: 37897747
We present an observation of photon-photon production of τ lepton pairs in ultraperipheral lead-lead collisions. The measurement is based on a data sample with an integrated luminosity of 404 μb^{-1}...
25.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Damanakis K, Dragicevic M, et al.
Eur Phys J C Part Fields
. 2023 Oct;
83(10):933.
PMID: 37855556
A search for decays to invisible particles of Higgs bosons produced in association with a top-antitop quark pair or a vector boson, which both decay to a fully hadronic final...
26.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Damanakis K, Dragicevic M, et al.
Phys Rev Lett
. 2023 Oct;
131(12):121901.
PMID: 37802954
The dependence of the ratio between the B_{s}^{0} and B^{+} hadron production fractions, f_{s}/f_{u}, on the transverse momentum (p_{T}) and rapidity of the B mesons is studied using the decay...
27.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Damanakis K, et al.
Phys Rev Lett
. 2023 Sep;
131(10):101801.
PMID: 37739361
We present the first direct search for exotic Higgs boson decays H→AA, A→γγ in events with two photonlike objects. The hypothetical particle A is a low-mass spin-0 particle decaying promptly...
28.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Damanakis K, et al.
Phys Rev Lett
. 2023 Sep;
131(9):091803.
PMID: 37721845
The first observation of the production of W^{±}W^{±} bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to...
29.
Hayrapetyan A, Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Damanakis K, et al.
Phys Rev Lett
. 2023 Sep;
131(9):091903.
PMID: 37721839
A search for the rare η→μ^{+}μ^{-}μ^{+}μ^{-} double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during...
30.
Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Damanakis K, et al.
Phys Rev Lett
. 2023 Aug;
131(6):061801.
PMID: 37625071
A search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H→cc[over ¯], produced in association with a leptonically decaying V (W or Z) boson is presented....