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81.
Fratina S Abe K Abe K Adachi I Aihara H Anipko D Arinstein K Aushev T Bakich AM Barberio E Bay A Belous K Bitenc U Bizjak I Bondar A Bozek A Bracko M Brodzicka J Browder TE Chang MC Chang P Chao Y Chen A Chen KF Chen WT Cheon BG Chistov R Choi Y Choi YK Cole S Dalseno J Dash M Drutskoy A Eidelman S Go A Golob B Gorisek A Ha H Haba J Hara K Hazumi M Heffernan D Hokuue T Hoshi Y Hou WS Iijima T Inami K Ishikawa A Ishino H Itoh R Iwasaki M Iwasaki Y Kaji H Kang JH Katayama N Kawai H Kawasaki T 《Physical review letters》2007,98(22):221802
We report measurements of the branching fraction and CP violation parameters in B(0)-->D+ D- decays. The results are based on a data sample that contains 535 x 10(6) BB pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain [1.97+/-0.20(stat) +/- 0.20(syst)] x 10(-4) for the branching fraction of B0-->D+D-. The measured values of the CP violation parameters are S=-1.13+/-0.37+/-0.09, A=0.91+/-0.23+/-0.06, where the first error is statistical and the second is systematic. We find evidence of CP violation in B0-->D+D- at the 4.1sigma confidence level. While the value of S is consistent with expectations from other measurements, the value of the parameter A favors large direct CP violation at the 3.2sigma confidence level, in contradiction to standard model expectations. 相似文献
82.
Zhang LM Zhang ZP Adachi I Aihara H Aulchenko V Aushev T Bakich AM Balagura V Barberio E Bay A Belous K Bitenc U Bondar A Bozek A Bracko M Brodzicka J Browder TE Chang P Chao Y Chen A Chen KF Chen WT Cheon BG Chiang CC Cho IS Choi Y Choi YK Dalseno J Danilov M Dash M Drutskoy A Eidelman S Epifanov D Fratina S Gabyshev N Gokhroo G Golob B Ha H Haba J Hara T Hastings NC Hayasaka K Hayashii H Hazumi M Heffernan D Hokuue T Hoshi Y Hou WS Hsiung YB Hyun HJ Iijima T Ikado K Inami K Ishikawa A 《Physical review letters》2007,99(13):131803
We report a measurement of D0-D(0) mixing parameters in D(0) --> K(s)(0) pi(+) pi(-) decays using a time-dependent Dalitz-plot analysis. We first assume CP conservation and subsequently allow for CP violation. The results are based on 540 fb(-1) of data accumulated with the Belle detector at the KEKB e(+)e(-) collider. Assuming negligible CP violation, we measure the mixing parameters x = (0.80 +/- 0.29(-0.07-0.14)(+0.09+0.10))% and y = (0.33+/-0.24(-0.12-0.08)(+0.08+0.06))%, where the errors are statistical, experimental systematic, and systematic due to the Dalitz decay model, respectively. Allowing for CP violation, we obtain the CP-violating parameters |q / p| = 0.86(-0.29-0.03)(+0.30+0.06) +/- 0.08 and arg(q/p) = (-14(-18-3-4)(+16+5+2)) degrees . 相似文献
83.
N. A. Inogamov V. V. Zhakhovsky N. Hasegawa M. Nishikino M. Yamagiwa M. Ishino M. B. Agranat S. I. Ashitkov A. Ya. Faenov V. A. Khokhlov D. K. Ilnitsky Yu. V. Petrov K. P. Migdal T. A. Pikuz S. Takayoshi T. Eyama N. Kakimoto T. Tomita M. Baba Y. Minami T. Suemoto T. Kawachi 《Applied physics. B, Lasers and optics》2015,119(3):413-419
84.
85.
Infrared surface electromagnetic wave spectra, which are obtained by the Otto and Kretschmann configurations, are calculated by the Fresnel formula of stratified layers. The calculated reflectivity is plotted as a function of incidence angle, air gap thickness, metal layer thickness, and wavenumbers. From these calculations, optimum experimental variables for both configurations are predicted in the infrared region. At the optimum angle of incidence, the z-component of the electric field intensity was found to be maximum at the surface of silver. The calculated SEW spectra of a PVAc film on silver show a large value of ΔR and a strong frequency dependence. The Otto configuration has advantages in the mid-infrared region. 相似文献
86.
Many successful synthesis routes for producing different shapes of metallic nanostructures, including sphere, rod, cube, and hollow shapes, have been developed in the past few decades. Many applications using these nanostructures have been studied because the outstanding properties of the nanostructures are not exhibited by their bulk-state counterparts. This review paper reports some recent developments in clinical and biosensor applications. The first part focused on the synthesis methods of metallic nanostructures having various shapes along with their optical properties. The second and third part is an introduction of the gold nanoparticle assemblies and arrays, explaining the conjugation methods of metallic nanostructures with biological entities. The final part reviews on the recent bioanalytical applications using various shapes of metallic nanostructures. 相似文献
87.
The new precursor of Cu–Zn–Sn–O (CZTO) was proposed for Cu2ZnSnS4 (CZTS) thin film fabrication to improve film morphology. The CZTS thin film grown from Cu–Zn–Sn (CZT) precursors has many bumps. We deposited CZTO precursors on Mo/soda-lime glass (SLG) substrates by RF sputtering using a CZT (Cu:Zn:Sn = 2:1:1) target in Ar and O2 atmosphere at various O2 partial pressures (0%, 5%, 17% and 20%). Subsequently, the CZTO precursors were sulfurized in Ar and S atmosphere to fabricate CZTS thin films. The CZTO precursors were amorphous. The morphology of the CZTS thin films was improved by the CZTO precursors. All of the CZTS films fabricated in this study had the same crystal structure. Composition analysis revealed that 50% of O were detected in the CZTO precursor, but O was not detected after sulfurizing process, indicating that O was substituted by S. The CZTS thin film from the CZTO precursor fabricated at O2 partial pressure of 20% had similar composition for solar cell absorber. 相似文献
88.
Abe K Abe K Abe N Abe R Abe T Ahn BS Aihara H Akatsu M Asano Y Aso T Aulchenko V Aushev T Bakich AM Ban Y Behera PK Bizjak I Bondar A Bozek A Bracko M Browder TE Casey BC Chang MC Chang P Chao Y Cheon BG Chistov R Choi Y Choi YK Danilov M Dong LY Drutskoy A Eidelman S Eiges V Enari Y Fang F Fujii H Fukunaga C Gabyshev N Garmash A Gershon T Golob B Gordon A Guo R Haba J Hara T Harada Y Hayashii H Hazumi M Heenan EM Higuchi I Higuchi T Hinz L Hokuue T Hoshi Y Hou SR Hou WS Hsu SC Huang HC Igaki T 《Physical review letters》2003,90(13):131803
We report studies of the Cabibbo-suppressed decay B+/--->D(CP)K+/-, where D(CP) denotes CP eigenstates of the D0-D0; system. The analysis is based on a 29.1 fb(-1) sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi(+/-), of B(B--->D1K-)/B(B--->D1pi(-))=0.125+/-0.036+/-0.010 and B(B--->D2K-)/B(B--->D2pi(-))=0.119+/-0.028+/-0.006; the index 1 (2) denotes the CP=+1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/--->D(CP)K+/-, finding A(1)=0.29+/-0.26+/-0.05 and A(2)=-0.22+/-0.24+/-0.04. 相似文献
89.
Ozawa K En'yo H Funahashi H Kitaguchi M Ishino M Kanda H Mihara S Miyashita T Murakami T Muto R Naruki M Sakuma F Sato HD Tabaru T Yamada S Yokkaichi S Yoshimura Y Chiba J Ieiri M Nomachi M Sasaki O Sekimoto M Tanaka KH Hamagaki H 《Physical review letters》2001,86(22):5019-5022
We measured the invariant mass spectra of electron-positron pairs in the target rapidity region of 12-GeV p+A reactions. We have observed a significant difference in the mass spectra below the omega meson between p+C and p+Cu interactions. This difference indicates that the spectral shape of mesons is modified at normal nuclear-matter density. 相似文献
90.
T Nozaka I Morimoto M Ishino T Okitsu H Kondoh K Kyogoku Y Sugawara H Iwasaki 《Chemical & pharmaceutical bulletin》1987,35(7):2844-2848