scholarly journals Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN=5.02  TeV with the ATLAS Detector

2018 ◽  
Vol 121 (21) ◽  
Author(s):  
M. Aaboud ◽  
G. Aad ◽  
B. Abbott ◽  
O. Abdinov ◽  
B. Abeloos ◽  
...  
Keyword(s):  
Atlas Detector ◽  
Photon Scattering ◽  
Two Photon ◽  
Muon Pairs

scholarly journals Recent results of quarkonium and heavy flavour physics at ATLAS

2019 ◽  
Vol 199 ◽  
pp. 04004
Author(s):  
Weimin Song
Keyword(s):  
Heavy Quark ◽  
Atlas Detector ◽  
Final States ◽  
Exotic States ◽  
Decay Properties ◽  
Muon Pairs ◽  
Beauty Production ◽  
Flavour Physics

Heavy quark spectroscopy and exotic states are studied with the ATLAS detector, mainly through final states containing muon pairs from J/ψ decays. This proceedings will summarise recent results from ATLAS on these topics, including production of quarkonium and heavy flavour, searches for exotic states and measurements of decay properties in open beauty production.

scholarly journals The Effect of Magnetic Fields Upon Cosmic X-ray Spectra

1990 ◽  
Vol 115 ◽  
pp. 70-77
Author(s):  
P. Mészáros
Keyword(s):  
Magnetic Fields ◽  
Gamma Ray ◽  
Line Emission ◽  
Atomic Line ◽  
Photon Scattering ◽  
Theoretical Understanding ◽  
Strong Magnetic Fields ◽  
X Ray ◽  
Two Photon ◽  
The One

AbstractThe effect of strong magnetic fields (B ≳ 1011Gauss) upon various atomic line emission mechanisms in the X-ray range is considered, in particular for H and H-like or He-like ions, and a discussion of the detectability and significance of possible measurements is given. The cyclotron mechanism, the one- and two-photon scattering and the bremsstrahlung effects in a strong B are reviewed, as well as the role they play in determining X-ray spectra. These considerations are applied to typical models of X-ray pulsars and Gamma-ray bursters, contrasting observations of magnetic related features to the present theoretical understanding of these objects.

scholarly journals Measurements of low energy observables, elastic pp interactions and exclusive production in proton-proton collisions with the ATLAS Detector

2018 ◽  
Vol 182 ◽  
pp. 02024
Author(s):  
P.J. Bussey ◽  
Keyword(s):  
Atlas Detector ◽  
Low Energy ◽  
Proton Scattering ◽  
Photon Scattering ◽  
Proton Proton ◽  
Proton Collisions ◽  
Exclusive Production ◽  
Proton Proton Collisions

A summary is given of recent ATLAS results at the LHC, covering a number of areas that reflect the Collaboration's work in low energy physical observables in multiparticle events, elastic photon-photon scattering, proton-proton scattering and the tagging of diffractive events.

Few-photon routing via chiral light-matter couplings

2021 ◽  
Author(s):  
Ya Yang ◽  
Jing Lu ◽  
Lan Zhou
Keyword(s):  
Quantum Channel ◽  
Active Element ◽  
Single Photon ◽  
Essential Elements ◽  
Quantum Network ◽  
Photon Scattering ◽  
Output State ◽  
Two Photon ◽  
Quantum Router ◽  
The One

Abstract Quantum router is one of the essential elements in the quantum network. Conventional routers only direct a single photon from one quantum channel into another. Here, we proposed a few-photon router. The active element of the router is a single qubit chirally coupled to two independent waveguides simultaneously, where each waveguide mode provides a quantum channel. By introducing the operators of the scatter-free space and the controllable space, the output state of the one-photon and two-photon scattering are derived analytically. It is found that the qubit can direct one and two photons from one port of the incident waveguide to an arbitrarily selected port of the other waveguide with unity, respectively. However, two photons cannot be simultaneously routed to the same port due to the anti-bunch effect.

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