全文获取类型
收费全文 | 140篇 |
免费 | 0篇 |
专业分类
化学 | 5篇 |
数学 | 9篇 |
物理学 | 126篇 |
出版年
2015年 | 1篇 |
2013年 | 1篇 |
2010年 | 1篇 |
2009年 | 1篇 |
2008年 | 1篇 |
2007年 | 1篇 |
2005年 | 1篇 |
2001年 | 2篇 |
2000年 | 7篇 |
1999年 | 6篇 |
1998年 | 3篇 |
1996年 | 7篇 |
1995年 | 3篇 |
1994年 | 10篇 |
1993年 | 7篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 22篇 |
1989年 | 13篇 |
1988年 | 5篇 |
1987年 | 11篇 |
1986年 | 7篇 |
1985年 | 9篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1977年 | 3篇 |
1976年 | 1篇 |
1969年 | 1篇 |
排序方式: 共有140条查询结果,搜索用时 93 毫秒
51.
Alves GA Amato S Anjos JC Appel JA Astorga J Bernard T Bracker SB Cremaldi LM Darling CL Dixon RL Errede D Gay C Green DR Jedicke R Karchin PE Kwan S Lueking LJ de Mello Neto JR Metheny J Milburn RH de Miranda JM da Motta Filho H Napier A Passmore D Rafatian A dos Reis AC Ross WR Santoro AF Sheaff M Souza MH Spalding WJ Stoughton C Streetman ME Summers DJ Takach SF Wallace A Wu Z 《Physical review letters》1994,72(6):812-815
52.
53.
54.
55.
Alexandreas DE Allen GE Berley D Biller S Burman RL Cavalli-Sforza M Chang CY Chen ML Chumney P Coyne D Dion C Dion GM Dorfan D Ellsworth RW Goodman JA Haines TJ Harmon M Hoffman CM Kelley L Klein S Nagle DE Schmidt DM Schnee R Sinnis C Shoup A Stark MJ Weeks DD Williams DA Wu JP Yang T Yodh GB Zhang WP 《Physical review letters》1993,71(16):2524-2527
56.
M. Piccolo I. Peruzzi P.A. Rapidis A. Barbaro-Galtieri J.M. Feller D. Lüke V. Vuillemin J.M. Dorfan R. Ely G.J. Feldman A. Fong B. Gobbi G. Hanson J.A. Jaros B.P. Kwan P. Lecomte A.M. Litke R.J. Madaras D.E. Yount 《Physics letters. [Part B]》1979,86(2):220-224
We present measurements of the cross section for inclusive D and K meson production in e+e? annihilation in the center of mass energy range 3.6 to 5.8 GeV. D production accounts for most of the increase in the total cross section for hadron production in e+e? annihilation at energies above 4 GeV. 相似文献
57.
A. Roussarie D.L. Burke G.S. Abrams M.S. Alam C.A. Blocker A. Blondel A.M. Boyarski M. Breidenbach W.C. Carithers W. Chinowsky M.W. Coles S. Cooper W.E. Dieterle J.B. Dillon J. Dorenbosch J.M. Dorfan M.W. Eaton G.J. Feldman H. Zaccone 《Physics letters. [Part B]》1981,105(4):304-308
We report a measurement of the cross section for the process γγ→π+π? at invariant masses 500 MeV/c2 < mππ<2000 MeV/c2. A value for the radiative width of the f(1270) tensor meson Γf→γγ = 3.6 ± 0.3 ± 0.5 KeV (helicity λ = 2) has been obtained from a fit to the observed ππ mass spectrum. 相似文献
58.
P.A. Rapidis G.J. Feldman G.S. Abrams M.S. Alam A. Barbaro-Galtieri A.M. Boyarski M. Breidenbach W. Chinowsky J.M. Dorfan R. Ely J.M. Feller A. Fong B. Gobbi G. Goldhaber G. Hanson J.A. Jaros J.A. Kadyk B.P. Kwan D.E. Yount 《Physics letters. [Part B]》1979,84(4):507-510
Inclusive momentum and energy spectra of neutral and charged D-mesons produced in e+e? annihilation at energies near 7 GeV are presented. The slope of the energy spectrum is similar to the charged pion spectrum at the same energy. The inclusive cross section σ(e+e?→ D or + anything) at 7 GeV is 4.8±1.3 nb. 相似文献
59.
M.L. Perl G.J. Feldman G.S. Abrams M.S. Alam A.M. Boyarski M. Breidenbach F. Bulos W. Chinowsky J. Dorfan C.E. Friedberg G. Goldhaber G. Hanson F.B. Heile J.A. Jaros J.A. Kadyk R.R. Larsen A.M. Litke D. Lüke J.E. Wiss 《Physics letters. [Part B]》1976,63(4):466-470
We present the properties of 105 events of the form e+ + e? → e+- + μ? + missing energy, in which no other charged particles or photons are detected. The simplesthypothesis compatible with all the data is that these events come from the production of a pair of heavy leptons, the mass of the lepton being in the range 1.6 to 2.0 GeV/c2 相似文献
60.
G. Goldhaber J.E. Wiss G.S. Abrams M.S. Alam A.M. Boyarski M. Breidenbach W. Chinowsky J. Dorfan G.J. Feldman G. Hanson J.A. Jaros A.D. Johnson J.A. Kadyk D. Lüke V. Lüth H.L. Lynch R.J. Madaras H.K. Nguyen G.H. Trilling 《Physics letters. [Part B]》1977,69(4):503-507
We have studied momentum spectra for D0 (0) and D± mesons produced near 4 GeV in e+e? annihilation and find that production is dominated by two-body reactions involving D and D1 states where the D1 (charged and neutral) have masses near 2.01 GeV/c2. A detailed study of D momentum spectra near Ecm = 4.028 GeV allows determination of masses and branching ratios of D and D1 states. Lastly we find that events containing a D0 meson conserve strangeness, thus establishing upper limits on D0-0 mixing and on the effects of charm changing neutral currents. 相似文献