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R Kowalewski

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Articles 530
Citations 1405
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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.
Aad G, Abbott B, Abeling K, Abicht N, Abidi S, Aboulhorma A, et al.
Phys Rev Lett . 2024 Jan; 131(25):251801. PMID: 38181367
A search for events with a dark photon produced in association with a dark Higgs boson via rare decays of the standard model Z boson is presented, using 139  fb^{-1}...
23.
Aad G, Abbott B, Abeling K, Abicht N, Abidi S, Aboulhorma A, et al.
Phys Rev Lett . 2024 Jan; 131(25):251802. PMID: 38181336
A measurement of the mass of the Higgs boson combining the H→ZZ^{*}→4ℓ and H→γγ decay channels is presented. The result is based on 140  fb^{-1} of proton-proton collision data collected...
24.
Lees J, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, et al.
Phys Rev Lett . 2023 Dec; 131(20):201801. PMID: 38039482
A new dark sector antibaryon, denoted ψ_{D}, could be produced in decays of B mesons. This Letter presents a search for B^{+}→ψ_{D}+p (and the charge conjugate) decays in e^{+}e^{-} annihilations...
25.
Adachi I, Adamczyk K, Aggarwal L, Aihara H, Akopov N, Aloisio A, et al.
Phys Rev Lett . 2023 Nov; 131(18):181801. PMID: 37977641
We present the first comprehensive tests of the universality of the light leptons in the angular distributions of semileptonic B^{0}-meson decays to charged spin-1 charmed mesons. We measure five angular-asymmetry...
26.
Aad G, Abbott B, Abbott D, Abeling K, Abidi S, Aboulhorma A, et al.
Phys Rev Lett . 2023 Nov; 131(18):181901. PMID: 37977601
This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139  fb^{-1} of...
27.
Aad G, Abbott B, Abeling K, Abidi S, Aboulhorma A, Abramowicz H, et al.
Phys Rev Lett . 2023 Nov; 131(17):172301. PMID: 37955510
This letter presents a measurement of the nuclear modification factor of large-radius jets in sqrt[s_{NN}]=5.02  TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72  nb^{-1} and...
28.
Adachi I, Aggarwal L, Aihara H, Akopov N, Aloisio A, Anh Ky N, et al.
Phys Rev Lett . 2023 Nov; 131(17):171803. PMID: 37955504
We measure the lifetime of the D_{s}^{+} meson using a data sample of 207  fb^{-1} collected by the Belle II experiment running at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The lifetime...
29.
Aad G, Abbott B, Abeling K, Abicht N, Abidi S, Aboulhorma A, et al.
Phys Rev Lett . 2023 Nov; 131(16):162301. PMID: 37925689
A key open question in the study of multiparticle production in high-energy pp collisions is the relationship between the "ridge"-i.e., the observed azimuthal correlations between particles in the underlying event...
30.
Aad G, Abbott B, Abeling K, Abicht N, Abidi S, Aboulhorma A, et al.
Phys Rev Lett . 2023 Oct; 131(15):151902. PMID: 37897770
A search is made for potential ccc[over ¯]c[over ¯] tetraquarks decaying into a pair of charmonium states in the four muon final state using proton-proton collision data at sqrt[s]=13  TeV,...