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CERN Document Server 1,572 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 0.77 secondes. 
1.
Laser Cooling Positronium with Broadband Laser Pulses / Caravita, R (TIFPA/INFN, Trento) ; Alfaro Campos, S ; Auzins, M ; Berghold, M ; Bergmann, B ; Burian, P ; Brusa, R S ; Camper, A ; Castelli, F ; Cerchiari, G et al.
The first successful demonstration of broadband laser cooling of positronium (Ps) atoms, obtained within the AEgIS experiment at CERN, is presented here. By employing a custom-designed pulsed alexandrite laser system at 243 nm featuring long-duration pulses of 70 ns and an energy able to saturate the 1$^{3}$S–2$^{3}$P transition over the broad spectrum range of 360 GHz, the temperature of a room-temperature Ps cloud was reduced from 380 K to 170 K in 70 ns. [...]
2025 - 6 p. - Published in : J. Phys. : Conf. Ser. 3029 (2025) 012002 Fulltext: PDF;
In : International Workshop on Positron and Positronium Chemistry, Kanazawa, Japan, 27 Oct - 1 Nov, pp.012002
Notice détaillée
2.
Measurement of the top-quark Yukawa coupling from $t\overline{t}$ production in the lepton+jets final state using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
The top-quark Yukawa coupling is extracted from the distribution of the top-quark pair ($t\overline{t}$) invariant mass in proton-proton collisions using 140 ${fb}^{-1}$ of data at $\sqrt{s} = 13$ TeV collected in 2015-2018 by the ATLAS experiment at the Large Hadron Collider. [...]
arXiv:2509.16039 ; CERN-EP-2025-216. - 2025 - 45.
Fulltext - Previous draft version - Fulltext
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3.
Precise measurement of the $t\bar{t}$ production cross-section and lepton differential distributions in $e\mu$ dilepton events from $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
The inclusive top quark pair ($t\bar{t}$) cross-section $\sigma_{t\bar{t}}$ has been measured in $\sqrt{s}=13$ TeV proton-proton collisions, using 140 fb$^{-1}$ of data collected by the ATLAS experiment at the Large Hadron Collider. [...]
arXiv:2509.15066 ; CERN-EP-2025-211. - 2025 - 69.
Fulltext - Previous draft version - Fulltext
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4.
Observation of $W^{+}W^{-}\gamma$ production in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector and constraints on anomalous quartic gauge-boson couplings / ATLAS Collaboration
This Letter reports the observation of $W^{+}W^{-}\gamma$ triboson production in 140 fb$^{-1}$ of data collected by the ATLAS detector from proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV at the LHC. [...]
arXiv:2509.14070 ; CERN-EP-2025-187. - 2025 - 43.
Fulltext - Previous draft version - Fulltext
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5.
Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
The angular distributions of Drell-Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. [...]
arXiv:2509.13759 ; CERN-EP-2025-188. - 2025 - 53.
Fulltext - Previous draft version - Fulltext
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6.
Search for Higgs bosons produced in association with a high-energy photon via vector-boson fusion and decaying to a pair of $b$-quarks in the ATLAS detector / ATLAS Collaboration
A search for Standard Model Higgs bosons produced in association with a high-energy photon and decaying to $b\bar{b}$ is performed using 133 fb$^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data collected with the ATLAS detector at the Large Hadron Collider at CERN. [...]
arXiv:2509.14005 ; CERN-EP-2025-110. - 2025 - 40.
Fulltext - Previous draft version - Fulltext
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7.
Observation of structures in the $J/\psi +\psi(2S)$ mass spectrum with the ATLAS detector / ATLAS Collaboration
A search for resonant structures in the $J/\psi +\psi$(2S) mass spectrum is performed using proton-proton collision data at $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 140 fb$^{-1}$, recorded by the ATLAS experiment at the LHC. [...]
arXiv:2509.13101 ; CERN-EP-2025-182. - 2025 - 36.
Fulltext - Previous draft version - Fulltext
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8.
Measurement of the azimuthal anisotropy of charged particles in $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV $^{16}$O$+^{16}$O and $^{20}$Ne$+^{20}$Ne collisions with the ATLAS detector / ATLAS Collaboration
This paper presents the first measurements of the azimuthal anisotropy coefficients $v_{n}$, which quantify the $n^{\mathrm{th}}$-order Fourier modulation of charged-particle azimuthal distributions, for $n=2$-4 in $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV $\mathrm{^{16}O}+\mathrm{^{16}O}$ and $\mathrm{^{20}Ne}+\mathrm{^{20}Ne}$ collisions recorded with the ATLAS detector at the Large Hadron Collider in 2025. [...]
arXiv:2509.05171 ; CERN-EP-2025-200. - 2025 - 44.
Fulltext - Previous draft version - Fulltext
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9.
Measurement of coherent exclusive $J/\psi\to\mu^+\mu^-$ production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV with the ATLAS detector / ATLAS Collaboration
The ATLAS experiment has performed a measurement of coherent exclusive $J/\psi\to\mu^+\mu^-$ production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV [...]
arXiv:2509.04135 ; CERN-EP-2025-180. - 2025 - 44.
Fulltext - Previous draft version - Fulltext
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10.
The AEgIS Experiment: Progress and Future Outlook / AEgIS Collaboration
The AEgIS experiment at CERN is pioneering measurements of gravity, spectroscopy, and interferometry using pulsed antimatter atomic sources. This work provides an overview of the AEgIS experimental setupand highlights recent advancements in antihydrogen production, positronium laser cooling, and the creation of antiprotonic atoms. [...]
POS (EXA-LEAP2024) 024.- 2025 - 9 p. - Published in : PoS EXA-LEAP2024 (2025) 024 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics and Conference on Low Energy Antiprotons (EXA/LEAP 2024), Vienna, Austria, 26 - 30 Aug 2024, pp.024
Notice détaillée

CERN Document Server : 1,572 notices trouvées   1 - 10suivantfin  aller vers la notice:
Voir aussi: noms d'auteurs similaires
142 Pospisil, S
49 Pospisil, S.
1489 Pospisil, Stanislav
1489 Pospišil, Stanislav
142 Pospísil, S
1489 Pospísil, Stanislav
49 Pospíšil, S.
1489 Pospíšil, Stanislav
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