Investigation of the reaction 4Нe(γ, pn)d at energies below the meson-production threshold

Khodyachikh, A.F.; Gorbenko, E.S.; Murtazin, R. T.

doi:10.1134/s1063778817010100

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…Hence, we have α = 0.49±0.04. This value is in agreement with the average value α = 0.50±0.03, obtained with the nonpolarized beam [6] at energies up to 150 M eV . At photon energies between 150 and 250 M eV [9], α = 0.15.…”

Section: Discussion Of Results and Conclusionsupporting

confidence: 92%

“…The final-state nucleon-deuteron interaction was treated as the elastic scattering of the nucleon by the deuteron. We have used a similar simulation procedure for this reaction on the unpolarized beam [6]. The pole diagram calculation is represented in Fig.…”

Section: Fig1 Events Distribution Versus Deuteron Pulsementioning

confidence: 99%

“…In the bremsstrahlung beam experiment using the diffusion chamber, the reaction cross-section mea-sured as a function of the deuteron momentum has exhibited the peak at about 87 M eV /c [6]. The maximum position of the peak and its width are independent of the photon energy.…”

Section: Introductionmentioning

confidence: 99%

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THREE-BODY PHOTODISINTEGRATION OF 4He NUCLEUS BY LINEARLY POLARIZED PHOTONS

Peretiatko¹,

Murtazin²,

Khodyachikh³

2019

Problems of Atomic Science and Technology

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Experimental data are reported from studies of the reaction 4He(γ, pn)d through the use of the streamer chamber placed in the magnetic ﬁeld and exposed to a linearly polarized photon beam from the electron linac LUE-2000. A structure has been revealed in the momentum distribution of deuterons. Studies were made into the eﬀects of nucleon-deuteron correlation. The azimuthal distribution of reaction products and the asymmetry of proton production cross-section were measured. The obtained data were analyzed in the framework of the quasideuteron model.

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Section: Discussion Of Results and Conclusionsupporting

confidence: 92%

Section: Fig1 Events Distribution Versus Deuteron Pulsementioning

confidence: 99%

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THREE-BODY PHOTODISINTEGRATION OF 4He NUCLEUS BY LINEARLY POLARIZED PHOTONS

Peretiatko¹,

Murtazin²,

Khodyachikh³

2019

Problems of Atomic Science and Technology

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“…Earlier, in the 4 He(γ,np)d reaction, a peak in the momentum distribution of deuterons was revealed [10] in the interval between 50 and 100 MeV/c. As the momentum grows above 100 MeV/c, the reaction yield decreases smoothly.…”

Section: Eejp 1 (2022)mentioning

confidence: 96%

Study of 14N(γ,np)3α Reaction for Eγ up to 150 MeV

Afanasiev

2022

EEJP

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The reaction 14N(g,np)3a induced by bremsstrahlung photons of endpoint energy Egmax = 150 MeV has been investigated using diffusion chamber, which is placed into the magnetic field. The distribution functions of the reaction yield, the energy and momentum of the final particles from Еg were measured and it was determined that at Еg > 45 MeV, change in the behavior of these functions occurs. The average energy Taver was calculated for the particles with the energy falling within a 1 MeV interval of the total kinetic energy T0 = Eg ‑ Q, where Q is the energy threshold of the reaction (Q = 19.77 MeV). At T0 ~ 20 MeV, the dependence of the contributions from Taver to T0 changes sharply. At T0 > 20 MeV, most of the energy is carried away by nucleons, their relative contribution is equal, and this agrees with the assumption of the quasideuteron interaction mechanism. The momentum distribution distributions for the neutron and proton have a similar form, with a strong shift of the maximum towards higher energies with an increase in the energy of the γ quantum. For a system of 3α‑particles, in each distribution, peak is observed centered at 100 MeV/c, the relative contribution of which smoothly decreases with increasing momentum, and a wide high-energy "tail" appears. The energy and angular correlations of the np‑pair depends on both of the energy Еg and the momentum of the system of 3α‑particles.

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“…The study of photonuclear reactions on the nuclei of s-and p-shells using a track detector (diffusion chamber placed in a magnetic field) was intensively carried out at the NSC KIPT [6][7][8]. The chamber was filled with saturated gas (helium or a mixture of helium and methane (nitrogen, oxygen)).…”

Section: Introductionmentioning

confidence: 99%

DIGITAL PROCESSING OF PHOTOS FROM a 4π TRACK DETECTOR

Afanasiev¹,

Afanasieva²

2022

Problems of Atomic Science and Technology

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A measuring complex with a digital data bank of stereo photos of photonuclear reactions on 4He, 12C, 14N, and 16O nuclei got from a 4 track detector has been created. The file name was formatted into a certain type of record, which included information about the experiment and the position in the data bank. A graphical application was presented that allowed semi-automatic determination of points along tracks of different lengths and curvatures. Methods and algorithms allowing to transfer into the camera system and perform event reconstruction were developed. Additional programs for the physical analysis of the reconstructed events and the graphical representation of the obtained results were created.

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Investigation of the reaction 4Нe(γ, pn)d at energies below the meson-production threshold

Cited by 4 publications

References 9 publications

THREE-BODY PHOTODISINTEGRATION OF 4He NUCLEUS BY LINEARLY POLARIZED PHOTONS

THREE-BODY PHOTODISINTEGRATION OF 4He NUCLEUS BY LINEARLY POLARIZED PHOTONS

Study of 14N(γ,np)3α Reaction for Eγ up to 150 MeV

DIGITAL PROCESSING OF PHOTOS FROM a 4π TRACK DETECTOR

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