排序方式: 共有32条查询结果,搜索用时 15 毫秒
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Zegers RG Sumihama M Ahn DS Ahn JK Akimune H Asano Y Chang WC Daté S Ejiri H Fujimura H Fujiwara M Hicks K Hotta T Imai K Ishikawa T Iwata T Kawai H Kim ZY Kino K Kohri H Kumagai N Makino S Matsumura T Matsuoka N Mibe T Miwa K Miyabe M Miyachi Y Morita M Muramatsu N Nakano T Niiyama M Nomachi M Ohashi Y Ooba T Ohkuma H Oshuev DS Rangacharyulu C Sakaguchi A Sasaki T Shagin PM Shiino Y Shimizu H Sugaya Y Toyokawa H Wakai A Wang CW Wang SC Yonehara K Yorita T Yoshimura M Yosoi M 《Physical review letters》2003,91(9):092001
Beam polarization asymmetries for the p(gamma-->,K+)Lambda and p(gamma-->,K+)Sigma(0) reactions are measured for the first time for E(gamma)=1.5-2.4 GeV and 0.6相似文献
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N. Bharateswara Rao M. Rangacharyulu P. Venkatacharyulu D. Premaswarup 《Magnetic resonance in chemistry : MRC》1984,22(1):1-5
A temperature variation study of the nuclear quadrupole resonance (NQR) frequencies for the two resonance lines in 1,2,4,5-tetrabromobenzene was carried out in the range 77–300 K. The far-infrared spectrum of 1,2,4,5-tetrabromobenzene was recorded and the low-frequency vibrational modes noted. From the nine observed frequencies, the torsional modes contributing to the change in NQR frequencies with temperature are identified by correlating the calculated values of the NQR frequencies at different temperatures with the observed values. 相似文献
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M. Asai I. Endo M. Harada S. Kasai K. Niki Y. Sumi S. Kato K. Maruyama Y. Murata M. Muto K. Yoshida K. Iwatani H. Hasai H. Ito T. Maki C. Rangacharyulu H. Shimizu Y. Wada 《Zeitschrift für Physik A Hadrons and Nuclei》1992,344(3):335-344
The reaction γ+d → π++π? +p + n has been measured in a kinematically complete way at incident photon energies from 570 to 850 MeV in steps of 40 MeV. From detailed comparison of measured data with results of event simulations, it is concluded that three different mechanisms, the quasi-free, double-delta and phase space productions, contribute to the reaction. Each of the cross sections corresponding to these mechanisms is determined separately. 相似文献
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Strauch S von Neumann-Cosel P Rangacharyulu C Richter A Schrieder G Schweda K Wambach J 《Physical review letters》2000,85(14):2913-2916
The 48Ca(e,e(')n) reaction has been investigated for excitation energies 11-25 MeV and momentum transfers 0.22-0.43 fm(-1) at the superconducting Darmstadt electron linear accelerator S-DALINAC. Electric dipole and quadrupole plus monopole strength distributions are extracted from a multipole decomposition of the spectra. Their fragmented structure is described by microscopic calculations allowing for coupling of the basic particle-hole excitations to more complex configurations. Comparison of the excitation spectrum of the residual nucleus 47Ca with statistical model calculations reveals a 39(5)% contribution of direct decay to the damping of the giant dipole resonance. 相似文献
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E.J. Ansaldo C. Rangacharyulu D. Bender U. Krämer A. Richter E. Spamer W. Knüpfer 《Physics letters. [Part B]》1980,95(1):31-34
In a high-resolution 18O(e, e′) experiment sharp states at EX=16.38±0.01 MeV (Jπ=2?, ground state analogue of and at EX=18.86±0.01 MeV (Jπ=1+) and clustering of strength (possibly with Jπ=1?, 2?) at EX≈23.7 MeV have been observed and compared to theoretical predictions. The transition strengths for the narrow states are B(M2) ↑ = 58± 8 μK2 fm2 and B(M1) ↑ = 0.28± 0.04 μK2, respectively. These results agree qualitatively with the resu lts from the analogous 18O(π?, γ)18N reaction. 相似文献
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The reactions ATe(p, t)A?2Te have been studied with even-A targets using 51.9 MeV protons. Three or more strongly excited triton peaks were observed in the spectra of the A-2Te nuclei at energies of ≈ 2–3 MeV excitation. Angular distributions are analyzed using DWBA theory. The lowest octupole (3?1) states of five Te isotopes are strongly excited. The lowest 3? state in 120Te is established at 2.09 ±0.02 MeV. The systematics of excitation energies and cross sections for the lowest 5? and 7? states are interpreted by a quasiparticle model. 相似文献
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A. S. Levchenko A. N. Khotjantsev A. P. Ivashkin M. Abe M. A. Aliev V. V. Anisimovsky M. Aoki I. Arai Y. Asano T. Baker M. Blecher P. Depommier M. Hasinoff K. Horie H. C. Huang Y. Igarashi T. Ikeda J. Imazato M. M. Khabibullin Yu. G. Kudenko Y. Kuno L. S. Lee G. Y. Lim J. A. Macdonald D. R. Marlow C. R. Mindas O. V. Mineev C. Rangacharyulu S. Shimizu Y. -M. Shin A. Suzuki A. Watanabe N. V. Yershov T. Yokoi 《Physics of Atomic Nuclei》2002,65(12):2232-2237
The form factors of the decay K + → π 0 e + ν e (K e3) have been determined from the comparison of the experimental and Monte Carlo Dalitz distributions containing about 105 K e3 events. The following values of the parameters were obtained: λ +=0.0278±0.0017 (stat.)±0.0015 (syst.), |f S/f +(0)|=0.0040±0.0160 (stat.)±0.0067 (syst.), and |f T/f +(0)|=0.019±0.080 (stat.)±0.038 (syst.). Both scalar f S and tensor f T form factors are consistent with the Standard Model predictions of zero values. 相似文献