Modelling Interaction Cross Sections for Intermediate and Low Energy Ions

2002 ◽  
Vol 99 (1) ◽  
pp. 49-51 ◽  
Author(s):  
L. H. Toburen ◽  
J. L. Shinpaugh ◽  
E. L. B. Justiniano
Keyword(s):  
Cross Sections ◽  
Low Energy ◽  
Low Energy Ions ◽  
Interaction Cross Sections

Transmission d'électrons de 0–15 eV à travers des films minces de solides bio-organiques à 300 K : application au tryptophane

1987 ◽  
Vol 65 (9) ◽  
pp. 1133-1140 ◽  
Author(s):  
Grégoire Leclerc ◽  
Thomas Goulet ◽  
Pierre Cloutier ◽  
Jean-Paul Jay-Gerin ◽  
Léon Sanche
Keyword(s):  
Cross Sections ◽  
Low Energy ◽  
Electronic Transitions ◽  
Theoretical Simulation ◽  
Electron Transmission ◽  
Organic Solid ◽  
Low Energy Electrons ◽  
Solid Thin Films ◽  
First Time ◽  
Interaction Cross Sections

We present an experimental method for measuring low-energy (0–15 eV) electron transmission through bio-organic, solid, thin films at 300 K. This method is used to determine the energy of the first electronic transitions and the energy of the lowest conduction level of an electron in those solids. By measuring the density and thickness of the films precisely and analyzing the experimental data with a theoretical simulation model, it is possible, for the first time, to estimate values of the interaction cross sections for low-energy electrons in a biological solid. As an illustration of the method, results obtained for tryptophan are presented. [Translated by the journal]

scholarly journals Charmed and bottomed hadronic cross sections from a statistical model

2020 ◽  
Vol 56 (9) ◽  
Author(s):  
Gábor Balassa ◽  
György Wolf
Keyword(s):  
Statistical Model ◽  
Energy Range ◽  
Cross Sections ◽  
Heavy Quarks ◽  
Open Charm ◽  
Low Energy ◽  
Final State ◽  
Proton Antiproton ◽  
Proton Proton

Abstract In this work, we extended our statistical model with charmed and bottomed hadrons, and fit the quark creational probabilities for the heavy quarks, using low energy inclusive charmonium and bottomonium data. With the finalized fit for all the relevant types of quarks (up, down, strange, charm, bottom) at the energy range from a few GeV up to a few tens of GeV’s, the model is now considered complete. Some examples are also given for proton–proton, pion–proton, and proton–antiproton collisions with charmonium, bottomonium, and open charm hadrons in the final state.

scholarly journals Low Energy Antikaon-nucleon/nuclei interaction studies by AMADEUS

2019 ◽  
Vol 199 ◽  
pp. 01014
Author(s):  
K. Piscicchia ◽  
M. Bazzi ◽  
G. Belloti ◽  
A. M. Bragadireanu ◽  
D. Bosnar ◽  
...  
Keyword(s):  
Cross Sections ◽  
Transition Amplitude ◽  
Nuclear Interaction ◽  
Branching Ratios ◽  
Analysis Procedure ◽  
Low Energy ◽  
Carbon Target ◽  
Pure Carbon ◽  
Nuclear Targets ◽  
Mass Spectroscopic Study

The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K− interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K− absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 100 MeV) in-flight K− captures. With AMADEUS step 1 a dedicated pure Carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K− nuclear interaction. The first measurement of the non-resonant transition amplitude $\left| {{A_{{K^ - }n \to \Lambda {\pi ^ - }}}} \right|$ at $\sqrt s = 33\,MeV$ below the K̄N threshold is presented, in relation with the Λ(1405) properties studies. The analysis procedure adopted in the serarch for K− multi-nucleon absorption cross sections and Branching Ratios will be also described.

scholarly journals LEvEL: Low-Energy Neutrino Experiment at the LHC

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Kevin J. Kelly ◽  
Pedro A. N. Machado ◽  
Alberto Marchionni ◽  
Yuber F. Perez-Gonzalez
Keyword(s):  
Cross Sections ◽  
Hadron Collider ◽  
Neutrino Flux ◽  
Coherent Scattering ◽  
Forward Direction ◽  
Low Energy ◽  
Neutrino Experiment ◽  
Beam Dump ◽  
Neutrino Production ◽  
Energy Neutrino

Abstract We propose the operation of LEvEL, the Low-Energy Neutrino Experiment at the LHC, a neutrino detector near the Large Hadron Collider Beam Dump. Such a detector is capable of exploring an intense, low-energy neutrino flux and can measure neutrino cross sections that have previously never been observed. These cross sections can inform other future neutrino experiments, such as those aiming to observe neutrinos from supernovae, allowing such measurements to accomplish their fundamental physics goals. We perform detailed simulations to determine neutrino production at the LHC beam dump, as well as neutron and muon backgrounds. Measurements at a few to ten percent precision of neutrino-argon charged current and neutrino-nucleus coherent scattering cross sections are attainable with 100 ton-year and 1 ton-year exposures at LEvEL, respectively, concurrent with the operation of the High Luminosity LHC. We also estimate signal and backgrounds for an experiment exploiting the forward direction of the LHC beam dump, which could measure neutrinos above 100 GeV.

Lα Emission from Low-Energy Collisions H+ +Ar, H2+ + Ar, H+ +H2

1984 ◽  
Vol 39 (12) ◽  
pp. 1296-1297
Author(s):  
Ch. Ottinger ◽  
M. Yang
Keyword(s):  
Cross Sections ◽  
Low Energy

Absolute integral cross sections for Lα emission from the title collision systems are reported for energies from threshold to several hundred eVCM. They are discussed in comparison with the systems Ar+ + H, H2.

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