Cross sections of 4He interaction with protons and 4He-p elastic scattering at 2.7 GeV/c

Abdullin, S.K.; Blinov, A. V.; Chadeeva, M.; Chuvilo, I.V.; Ergakov, V.A.; Grechko, V.E.; Kiselevich, I.; Korolev, Y.V.; Selektor, Ya.M.; Turov, V.F.; Vanyushin, I.A.; Zombkovsky, S.M.

doi:10.1016/0375-9474(94)90383-2

Cited by 13 publications

(16 citation statements)

References 11 publications

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“…The Monte Carlo code was developed to incorporate detailed descriptions of various interactions of helium nuclei into GEANT (Brun et al 1994), where the cross sections and angular distributions of the nuclear interactions were evaluated by Ðtting energy-dependent empirical formulae (Bradt & Peters 1950) to experimental data (Bizard et al 1977 and references therein ; Abdurakhimov et al 1981 and references therein ; Gasparyan et al 1982 ;Ableev et al 1985 and references therein ; Grebenjuk et al 1989 and references therein ; Glagolev et al 1993 and references therein ; Abdullin et al 1994 and references therein). The electromagnetic processes, mainly due to d-rays, were also treated properly.…”

Section: Normalization and Correctionsmentioning

confidence: 99%

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Sanuki

Motoki

Matsumoto

et al. 2000

ApJ

320

226

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We report cosmic-ray proton and helium spectra in energy ranges of 1È120 GeV nucleon~1 and 1È54 GeV nucleon~1, respectively, measured by a Ñight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic Ðeld of 1 T. Those spectra were determined within overall uncertainties of^5% for protons and^10% for helium nuclei including statistical and systematic errors.

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Section: Normalization and Correctionsmentioning

confidence: 99%

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Sanuki

Motoki

Matsumoto

et al. 2000

ApJ

320

226

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“…The systematic investigations of the nuclear reactions in the few-nucleon systems at intermediate energies have been carried out in ITEP for the last few years by making use of the lightest nuclei ( 3 H, 3 He, 4 He) as a beam and a liquid-hydrogen bubble chambers (80 cm and 2 m) as a target (see e.g. [1] for bibliography and background). In [1] we reported the data on the cross sections of 4 He interaction with protons and αp-elastic scattering below the pion production threshold in the elementary NN process.…”

mentioning

confidence: 99%

“…[1] for bibliography and background). In [1] we reported the data on the cross sections of 4 He interaction with protons and αp-elastic scattering below the pion production threshold in the elementary NN process. The momentum of the 4 He nuclei averaged over the bubble chamber fiducial volume was equal to 2.7 GeV/c (the kinetic energy of the initial protons in the nuclear rest frame was T p = 220 MeV).…”

mentioning

confidence: 99%

“…About 18000 events were measured. The peculiarities of the experimental procedure can be found in [1].…”

mentioning

confidence: 99%

“…The details of the present theoretical approach are given in [1]. In our present calculations we also use a parameterization of the 4 He nuclear ground-state density in the gaussian form ρ(r) ∼ exp(−r 2 /R 2 ) with R = 1.25 fm [1].…”

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confidence: 99%

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Cross sections for 4He interaction with protons at 5 GeV/c

et al. 2001

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The total and topological 4 Hep cross sections as well as the cross sections of the separate αp interaction channels and the differential cross sections dσ dt of the elastic αp scattering were measured using the 2m hydrogen bubble chamber exposed to a separated beam of α particles from the ITEP synchrotron at 5 GeV/c (the kinetic energy of the initial protons in the nuclear rest frame was T p = 620 MeV). The data obtained have been compared with the results of the previous experiments and with the theoretical predictions based on the Glauber-Sitenko multiplescattering theory.The systematic investigations of the nuclear reactions in the few-nucleon systems at intermediate energies have been carried out in ITEP for the last few years by making use of the lightest nuclei ( 3 H, 3 He, 4 He) as a beam and a liquid-hydrogen bubble chambers (80 cm and 2 m) as a target (see e.g. [1] for bibliography and background). In [1] we reported the data on the cross sections of 4 He interaction with protons and αp-elastic scattering below the pion production threshold in the elementary NN process. The momentum of the 4 He nuclei averaged over the bubble chamber fiducial volume was equal to 2.7 GeV/c (the kinetic energy of the initial protons in the nuclear rest frame was T p = 220 MeV). Now we 1

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Propagation of H and He cosmic ray isotopes in the Galaxy: astrophysical and nuclear uncertainties

Tomassetti

2012

Astrophys Space Sci

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Observations of light isotopes in cosmic rays provide valuable information on their origin and propagation in the Galaxy. Using the data collected by the AMS-01 experiment in the range ∼0.2 -1.5 GeV nucleon −1 , we compare the measurements on 1 H, 2 H, 3 He, and 4 He with calculations for interstellar propagation and solar modulation. These data are described well by a diffusive-reacceleration model with parameters that match the B/C ratio data, indicating that He and heavier nuclei such as C-N-O experience similar propagation histories. Close comparisons are made within the astrophysical constraints provided by the B/C ratio data and within the nuclear uncertainties arising from errors in the production cross section data. The astrophysical uncertainties are expected to be dramatically reduced by the data upcoming from AMS-02, so that the nuclear uncertainties will likely represent the most serious limitation on the reliability of the model predictions. On the other hand, we find that secondary-to-secondary ratios such as 2 H/ 3 He, 6 Li/ 7 Li or 10 B/ 11 B are barely sensitive to the key propagation parameters and can represent a useful diagnostic test for the consistency of the calculations.

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Cross sections of 4He interaction with protons and 4He-p elastic scattering at 2.7 GeV/c

Cited by 13 publications

References 11 publications

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Cross sections for 4He interaction with protons at 5 GeV/c

Propagation of H and He cosmic ray isotopes in the Galaxy: astrophysical and nuclear uncertainties

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