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排序方式: 共有61条查询结果,搜索用时 31 毫秒
1.
J. Brunner H. -J. Grabosch H. H. Kaufmann R. Nahnhauer S. Nowak S. Schlenstedt V. V. Ammosov V. I. Ermolaev A. A. Ivanilov P. V. Ivanov V. I. Konyushko V. M. Korablev V. A. Korotkov V. A. Krupnov V. V. Makeev A. G. Myagkov A. Yu. Polyarush A. A. Sokolov SKAT-Collaboration 《Zeitschrift fur Physik C Particles and Fields》1990,45(4):551-555
The cross sections of neutrino and antineutrino quasielastic reactions \(vn \to \mu ^ - p,\bar vp \to \mu ^ + n,\bar vp \to \mu ^ + \Lambda\) were studied in the neutrino energy range between 3 and 30 GeV. In comparison withV-A theory axial mass parameters ofM A =(1.06±0.05±0.14) GeV/c2 from neutrino andM A =(0.71±0.10±0.20) GeV/c2 from antineutrino data were found. The total cross-section for the hyperon production process can be described byM A =1.0 GeV/c2. 相似文献
2.
V. V. Ammosov V. I. Ermolaev V. S. Filippov V. I. Hleborad A. A. Ivanilov P. V. Ivanov V. I. Konyushko V. M. Korablev V. A. Korotkov V. A. Krupnov A. I. Kurnosenko E. P. Kuznetsov V. V. Makeev A. G. Myagkov A. Yu. Polyarush A. A. Sokolov H. J. Grabosch H. H. Kaufmann R. Nahnhauer S. Nowak H. E. Roloff S. Schlenstedt SKAT-Collaboration 《Zeitschrift fur Physik C Particles and Fields》1988,40(4):493-496
We present the final results from the search for μe pairs produced in neutrino interactions using the freon filled bubble chamber SKAT. The rate of μ? e + pairs to charged current events above the charm threshold is \(R_{\mu ^ - e^ + } = (4.8 \pm 1.1)10^{ - 3} \) . Assuming charm particle production to be the origin of the positron we calculate \(R_{\Lambda _c^ + } = (6.2 \pm 3.1)10^{ - 2} \) andR D =(2.8±0.9)10?2. We observe no considerable μ? e ? pair production above the background. In the regionE v >3 GeV,p μ,e >1.0 GeV/c andp μ>p e we find with a 90% confidence level the limit \(R_{\mu ^ - e^ - }< 1.7 10^{ - 4} \) . 相似文献
3.
D. S. Baranov N. Y. Chabrov V. A. Filipov A. A. Ivanilov P. V. Ivanov V. I. Konyushko V. M. Korablev V. A. Korotkov V. A. Krupnov V. V. Makeev A. G. Myagkov A. Yu. Polyarush A. A. Sokolov E. P. Kuznetsov H. -J. Grabosch H. H. Kaufmann U. Krecker R. Nahnhauer S. Nowak H. Vogt 《Zeitschrift fur Physik C Particles and Fields》1984,21(3):189-196
We present data on the multiplicity structure of inclusive charged hadron production in charged current neutrino and antineutrino freon interactions in the energy range 3–30 GeV resulting from an experiment with the bubble chamber SKAT. Average multiplicities, dispersions and correlation coefficients are investigated. Furthermore, KNO-scaling is studied and average net charges are calculated in different kinematical regions. Our data are compared with results from \(\begin{array}{*{20}c} {( - )} \\ v \\ \end{array} \) -interactions on an isoscalar target of “free” nucleons to study the influence of nuclear effects. 相似文献
4.
A. Yu. Bordanovskii A. A. Volkov D. K. Elumahov V. P. Efremov A. Yu. Kalinin A. V. Korablev A. N. Krinitsyn V. I. Kryshkin N. V. Kulagin V. V. Skvortsov V. V. Talov L. K. Turchanovich 《Physics of Atomic Nuclei》2016,79(4):481-487
Cross sections for the production of high-transverse-momentum charged hadrons in proton–nucleus interactions at the incident-proton energy of 50 GeV were measured with the aid of the FODS double-arm spectrometer. Single hadrons (charged pions and protons) emitted at a c.m. angle of about 90° and high-effective-mass pairs of hadrons flying apart at a c.m. angle of 180° were detected simultaneously. Results on the production of single hadrons are presented. 相似文献
5.
G. A. Akopdzhanov V. B. Anikeev V. A. Bezzubov S. P. Denisov A. A. Durum Yu. V. Gilitsky V. M. Korablev V. I. Koreshev A. V. Kozelov E. A. Kozlovsky V. I. Kurbakov V. V. Lipaev A. M. Rybin A. A. Shchukin M. M. Soldatov D. A. Stoyanova K. I. Trushin I. A. Vasilyev 《JETP Letters》2005,82(11):675-678
The g, h, and k Dalitz plot parameters, which are coefficients in a series expansion of the squared module of the matrix element |M(u, v)|2 ∝ 1 + gu + hu 2 + kv 2 (u, v are invariant variables), have been measured for K ± → π±π 0π0 decays using 35 GeV/c hadron beams at the IHEP (Protvino) accelerator. Dependences of parameters and fit quality on the π0π0 mass cut were investigated for the first time. It is shown that the expansion mentioned above does not fit the experimental data near the π+π? mass threshold and that addition of the cubic terms only slightly improves the fit quality. This result indicates the important role of nonanalytical terms in the matrix element that are connected with pion rescattering. A comparison of our data with previous measurements is presented. 相似文献
6.
Dem’yanov S. A. Kartanov S. A. Kolesov V. F. Korablev S. A. Lopukhov N. V. Pikulev A. A. Pluzyan K. G. Sizov A. N. 《Physics of Atomic Nuclei》2021,84(8):1459-1478
Physics of Atomic Nuclei - The results of complex calculation of the solution pulsed nuclear reactor (PNR) VIR-2M are presented. The simulation of the fuel solution dynamics is described, and... 相似文献
7.
Tavrov A Korablev O Ksanfomaliti L Rodin A Frolov P Nishikwa J Tamura M Kurokawa T Takeda M 《Optics letters》2011,36(11):1972-1974
To suppress starlight for direct exoplanet observation, we propose a common-path achromatic rotational-shearing coronagraph (CP-ARC), which is an interferocoronagraph with an angular-adjustable field rotator. The CP-ARC aims to maintain unwanted detection of stellar light, which can be suppressed incompletely by interference because of the finite diameter of the star. Compared to the previous interferocoronagraph, which had a nonadjustable 180° field rotation, the proposed CP-ARC can improve the coronagraphic contrast by several orders if the CP-ARC is combined with medium or large telescopes where the companion-star separation is optically resolved by more than a few Airy radii. The CP-ARC is made robust against mechanical disturbances due to the common-path interferometer principle. 相似文献
8.
9.
V. V. Ammosov E. N. Ardashev D. S. Baranov V. I. Hleborad A. A. Ivanilov P. V. Ivanov V. I. Konyushko V. M. Korablev V. A. Korotkov V. V. Makeev A. G. Myagkov N. A. Netyaga A. Yu. Polyarush A. A. Sokolov E. P. Kuznetsov H. -J. Grabosch H. H. Kaufmann U. Krecker R. Nahnhauer S. Nowak S. Schlenstedt H. Vogt SKAT-Collaboration 《Zeitschrift fur Physik C Particles and Fields》1986,30(2):183-189
For charged current neutrino nucleus interactions at energies below 30 GeV, resulting from an experiment with the freon filled bubble chamber SKAT,K 0 and Λ production is investigated. An estimation of the total strange and charm production cross section is made.K 0 and Λ production rates are given in dependence on different inclusive variables. The production properties forK 0′s and Λ′s are discussed in terms of the Quark-Parton-Model. Comparisons with other ν-experiments at higher energies are performed. 相似文献
10.