1,107 research outputs found
A Study Literature of Critical Success Factors of Cloud Computing in Organizations
No full textAbstractThe aim of this study is to identify the critical success factors that impact the organization to use cloud computing in their business processes. The author conduct a literature review study to identify the factors by collecting thirty papers from reputable database journal such as emerald, science direct, IEEE and Google Scholar. The author was using “cloud computing” as a keyword. After the author reviewed and analyzed the abstract of each paper, the author selected nineteen papers that related to this topic. The author found that cost reducing, flexible, redundancy and reliability, scalability, collaboration, efficiency, virtually and availability as critical success factors as the impact of the use of cloud computing for organizations. Further research can be conducted to validate this finding by developing an instrument and take a survey of organizations
Measurements of branching fraction ratios and CP-asymmetries in suppressed B^-→D(→K^+π^-)K- and B^-→D(→K^+π^-)π^- decays
No full text8 pages, 1 figure, submitted to Phys.Rev.D Rapid CommunicationsWe report the first reconstruction in hadron collisions of the suppressed decays B-→D(→K+π-)K- and B-→D(→K+π-)π-, sensitive to the Cabibbo-Kobayashi-Maskawa phase γ, using data from 7fb-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B-→D(→K+π-)K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K)=[22.0±8.6(stat)±2.6(syst)]×10-3, R+(K)=[42.6±13.7(stat)±2.8(syst)]×10-3, R-(K)=[3.8±10.3(stat)±2.7(syst)]×10-3 as well as the direct CP-violating asymmetry A(K)=-0.82±0.44(stat)±0.09(syst) of this mode. Corresponding quantities for B-→D(→K+π-)π- decay are also reported
Measurements of branching fraction ratios and CP-asymmetries in suppressed B- -> D(-> K+ pi(-))K- and B- -> D(-> K+ pi(-))pi(-) decays
No full textWe report the first reconstruction in hadron collisions of the suppressed decays B- -> D(-> K+ pi(-))K- and B- -> D(-> K+ pi(-))pi(-), sensitive to the Cabibbo-Kobayashi-Maskawa phase gamma, using data from 7 fb(-1) of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B- -> D(-> K+ pi(-))K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K) = [22.0 +/- 8.6(stat) +/- 2.6(syst)] x 10(-3), R+ (K) = [42.6 +/- 13.7(stat)] +/- 2.8(syst)] x 10(-3), R- (K) = [3.8 +/- 10.3(stat) +/- 2.7(syst)] x 10(-3) as well as the direct CP-violating asymmetry A(K) = -0.82 +/- 0,44(stat) +/- 0.09(syst) of this mode. Corresponding quantities for B- -> D(-> K+ pi(-))pi(-) decay are also reported
Measurement of indirect CP-violating asymmetries in D-0 -> K+K- and D-0 -> pi(+)pi(-) decays at CDF
No full textWe report a measurement of the indirect CP-violating asymmetries (AΓ) between effective lifetimes of anticharm and charm mesons reconstructed in D0→K+K− and D0→π+π− decays. We use the full data set of proton-antiproton collisions collected by the Collider Detector at Fermilab experiment and corresponding to 9.7 fb−1 of integrated luminosity. The strong-interaction decay D*+→D0π+ is used to identify the meson at production as D0 or D¯0. We statistically subtract D0 and D¯0 mesons originating from b-hadron decays and measure the yield asymmetry between anticharm and charm decays as a function of decay time. We measure AΓ(K+K−)=(−0.19±0.15(stat)±0.04(syst))% and AΓ(π+π−)=(−0.01±0.18(stat)±0.03(syst))%. The results are consistent with the hypothesis of CP symmetry and their combination yields AΓ=(−0.12±0.12)%
Measurement of partial widths and search for direct CP violation in D-0 meson decays to K-K+ and pi(-)pi(+)
No full textWe present a measurement of relative partial widths and decay rate CP asymmetries in K-K+ and pi(-)pi(+) decays of D-0 mesons produced in p(p) over bar collisions at root s = 1.96 TeV. We use a sample of 2x10(5) D*+-> D-0 pi(+) (and charge conjugate) decays with the D-0 decaying to K-pi(+), K-K+, and pi(-)pi(+), corresponding to 123 pb(-1) of data collected by the Collider Detector at Fermilab II experiment at the Fermilab Tevatron collider. No significant direct CP violation is observed. We measure Gamma(D-0 -> K-K+)/Gamma(D-0 -> K-pi(+)) = 0.0992 +/- 0.0011 +/- 0.0012, Gamma(D-0 ->pi(-)pi(+))/Gamma(D-0 -> K-pi(+)) = 0.035 94 +/- 0.000 54 +/- 0.000 40, A(CP)(K-K+) = (2.0 +/- 1.2 +/- 0.6)%, and A(CP)(pi(-)pi(+)) = (1.0 +/- 1.3 +/- 0.6)%, where, in all cases, the first uncertainty is statistical and the second is systematic
Test of High Temperature Superconducting REBCO Coil Assembly for a Multi-Frequency ECR Ion Source
No full textChong T.H., Fukuda M., Yorita T., et al. Test of High Temperature Superconducting REBCO Coil Assembly for a Multi-Frequency ECR Ion Source. IEEE Transactions on Applied Superconductivity 34, 1 (2024); https://doi.org/10.1109/TASC.2024.3360935.High temperature superconducting REBCO tape has the characteristic of maintaining high critical current density under strong external magnetic field, which makes it an ideal material for the construction of air-core electromagnets of accelerator and electron cyclotron resonance (ECR) ion source. In Research Center for Nuclear Physics, Osaka University, a non-insulated air-cored REBCO coil assembly has been constructed. This coil assebmly consists of three circular REBCO solenoid and six racetrack REBCO coil. This coil assembly will be used as an electromagnet of a multi-frequency ECR ion source, and is also developed as a key technology development of an air-core cyclotron. The magnetic field of this ion source are designed, and 77 K performance tests of the assembly are carried out in order to examine the capability of REBCO coils of inducing magnetic field under external field. In this work, the test results and the magnetic field designed for the ECR ion source will be presented and discussed
Measurement of vector boson plus D? (2010)+ meson production in p-p collisions at s =1.96 TeV MEASUREMENT of VECTOR BOSON PLUS D? (2010)+ ... T. AALTONEN et al
No full textCitation: Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., . . . Zucchelli, S. (2016). Measurement of vector boson plus D? (2010)+ meson production in p-p collisions at s =1.96 TeV MEASUREMENT of VECTOR BOSON PLUS D? (2010)+ ... T. AALTONEN et al. Physical Review D - Particles, Fields, Gravitation and Cosmology, 93(5). doi:10.1103/PhysRevD.93.052012Additional Authors: Aurisano, A.;Azfar, F.;Badgett, W.;Bae, T.;Barbaro-Galtieri, A.;Barnes, V. E.;Barnett, B. A.;Barria, P.;Bartos, P.;Bauce, M.;Bedeschi, F.;Behari, S.;Bellettini, G.;Bellinger, J.;Benjamin, D.;Beretvas, A.;Bhatti, A.;Bland, K. R.;Blumenfeld, B.;Bocci, A.;Bodek, A.;Bortoletto, D.;Boudreau, J.;Boveia, A.;Brigliadori, L.;Bromberg, C.;Brucken, E.;Budagov, J.;Budd, H. S.;Burkett, K.;Busetto, G.;Bussey, P.;Butti, P.;Buzatu, A.;Calamba, A.;Camarda, S.;Campanelli, M.;Canelli, F.;Carls, B.;Carlsmith, D.;Carosi, R.;Carrillo, S.;Casal, B.;Casarsa, M.;Castro, A.;Catastini, P.;Cauz, D.;Cavaliere, V.;Cerri, A.;Cerrito, L.;Chen, Y. C.;Chertok, M.;Chiarelli, G.;Chlachidze, G.;Cho, K.;Chokheli, D.;Clark, A.;Clarke, C.;Convery, M. E.;Conway, J.;Corbo, M.;Cordelli, M.;Cox, C. A.;Cox, D. J.;Cremonesi, M.;Cruz, D.;Cuevas, J.;Culbertson, R.;D'Ascenzo, N.;Datta, M.;De Barbaro, P.;Demortier, L.;Deninno, M.;D'Errico, M.;Devoto, F.;Di Canto, A.;Di Ruzza, B.;Dittmann, J. R.;Donati, S.;D'Onofrio, M.;Dorigo, M.;Driutti, A.;Ebina, K.;Edgar, R.;Elagin, A.;Erbacher, R.;Errede, S.;Esham, B.;Farrington, S.;Fernández Ramos, J. P.;Field, R.;Flanagan, G.;Forrest, R.;Franklin, M.;Freeman, J. C.;Frisch, H.;Funakoshi, Y.;Galloni, C.;Garfinkel, A. F.;Garosi, P.;Gerberich, H.;Gerchtein, E.;Giagu, S.;Giakoumopoulou, V.;Gibson, K.;Ginsburg, C. M.;Giokaris, N.;Giromini, P.;Glagolev, V.;Glenzinski, D.;Gold, M.;Goldin, D.;Golossanov, A.;Gomez, G.;Gomez-Ceballos, G.;Goncharov, M.;González López, O.;Gorelov, I.;Goshaw, A. T.;Goulianos, K.;Gramellini, E.;Grosso-Pilcher, C.;Group, R. C.;Guimaraes Da Costa, J.;Hahn, S. R.;Han, J. Y.;Happacher, F.;Hara, K.;Hare, M.;Harr, R. F.;Harrington-Taber, T.;Hatakeyama, K.;Hays, C.;Heinrich, J.;Herndon, M.;Hocker, A.;Hong, Z.;Hopkins, W.;Hou, S.;Hughes, R. E.;Husemann, U.;Hussein, M.;Huston, J.;Introzzi, G.;Iori, M.;Ivanov, A.;James, E.;Jang, D.;Jayatilaka, B.;Jeon, E. J.;Jindariani, S.;Jones, M.;Joo, K. K.;Jun, S. Y.;Junk, T. R.;Kambeitz, M.;Kamon, T.;Karchin, P. E.;Kasmi, A.;Kato, Y.;Ketchum, W.;Keung, J.;Kilminster, B.;Kim, D. H.;Kim, H. S.;Kim, J. E.;Kim, M. J.;Kim, S. H.;Kim, S. B.;Kim, Y. J.;Kim, Y. K.;Kimura, N.;Kirby, M.;Knoepfel, K.;Kondo, K.;Kong, D. J.;Konigsberg, J.;Kotwal, A. V.;Kreps, M.;Kroll, J.;Kruse, M.;Kuhr, T.;Kurata, M.;Laasanen, A. T.;Lammel, S.;Lancaster, M.;Lannon, K.;Latino, G.;Lee, H. S.;Lee, J. S.;Leo, S.;Leone, S.;Lewis, J. D.;Limosani, A.;Lipeles, E.;Lister, A.;Liu, H.;Liu, Q.;Liu, T.;Lockwitz, S.;Loginov, A.;Lucchesi, D.;Lucà, A.;Lueck, J.;Lujan, P.;Lukens, P.;Lungu, G.;Lys, J.;Lysak, R.;Madrak, R.;Maestro, P.;Malik, S.;Manca, G.;Manousakis-Katsikakis, A.;Marchese, L.;Margaroli, F.;Marino, P.;Matera, K.;Mattson, M. E.;Mazzacane, A.;Mazzanti, P.;McNulty, R.;Mehta, A.;Mehtala, P.;Mesropian, C.;Miao, T.;Mietlicki, D.;Mitra, A.;Miyake, H.;Moed, S.;Moggi, N.;Moon, C. S.;Moore, R.;Morello, M. J.;Mukherjee, A.;Muller, T.;Murat, P.;Mussini, M.;Nachtman, J.;Nagai, Y.;Naganoma, J.;Nakano, I.;Napier, A.;Nett, J.;Neu, C.;Nigmanov, T.;Nodulman, L.;Noh, S. Y.;Norniella, O.;Oakes, L.;Oh, S. H.;Oh, Y. D.;Oksuzian, I.;Okusawa, T.;Orava, R.;Ortolan, L.;Pagliarone, C.;Palencia, E.;Palni, P.;Papadimitriou, V.;Parker, W.;Pauletta, G.;Paulini, M.;Paus, C.;Phillips, T. J.;Piacentino, G.;Pianori, E.;Pilot, J.;Pitts, K.;Plager, C.;Pondrom, L.;Poprocki, S.;Potamianos, K.;Pranko, A.;Prokoshin, F.;Ptohos, F.;Punzi, G.;Redondo Fernández, I.;Renton, P.;Rescigno, M.;Rimondi, F.;Ristori, L.;Robson, A.;Rodriguez, T.;Rolli, S.;Ronzani, M.;Roser, R.;Rosner, J. L.;Ruffini, F.;Ruiz, A.;Russ, J.;Rusu, V.;Sakumoto, W. K.;Sakurai, Y.;Santi, L.;Sato, K.;Saveliev, V.;Savoy-Navarro, A.;Schlabach, P.;Schmidt, E. E.;Schwarz, T.;Scodellaro, L.;Scuri, F.;Seidel, S.;Seiya, Y.;Semenov, A.;Sforza, F.;Shalhout, S. Z.;Shears, T.;Shepard, P. F.;Shimojima, M.;Shochet, M.;Shreyber-Tecker, I.;Simonenko, A.;Sliwa, K.;Smith, J. R.;Snider, F. D.;Song, H.;Sorin, V.;Denis, R. S.;Stancari, M.;Stentz, D.;Strologas, J.;Sudo, Y.;Sukhanov, A.;Suslov, I.;Takemasa, K.;Takeuchi, Y.;Tang, J.;Tecchio, M.;Teng, P. K.;Thom, J.;Thomson, E.;Thukral, V.;Toback, D.;Tokar, S.;Tollefson, K.;Tomura, T.;Tonelli, D.;Torre, S.;Torretta, D.;Totaro, P.;Trovato, M.;Ukegawa, F.;Uozumi, S.;Vázquez, F.;Velev, G.;Vellidis, C.;Vernieri, C.;Vidal, M.;Vilar, R.;Vizán, J.;Vogel, M.;Volpi, G.;Wagner, P.;Wallny, R.;Wang, S. M.;Waters, D.;Wester, W. C., III;Whiteson, D.;Wicklund, A. B.;Wilbur, S.;Williams, H. H.;Wilson, J. S.;Wilson, P.;Winer, B. L.;Wittich, P.;Wolbers, S.;Wolfe, H.;Wright, T.;Wu, X.;Wu, Z.;Yamamoto, K.;Yamato, D.;Yang, T.;Yang, U. K.;Yang, Y. C.;Yao, W. M.;Yeh, G. P.;Yi, K.;Yoh, J.;Yorita, K.;Yoshida, T.;Yu, G. B.;Yu, I.;Zanetti, A. M.;Zeng, Y.;Zhou, C.;Zucchelli, S.A measurement of vector boson (V) production in conjunction with a D?(2010)+ meson is presented. Using a data sample corresponding to 9.7 fb-1 of proton-antiproton collisions at center-of-mass energy s=1.96 TeV produced by the Fermilab Tevatron, we reconstruct V+D?+ samples with the CDF II detector. The D?+ is fully reconstructed in the D?(2010)+?D0(?K-?+)?+ decay mode. This technique is sensitive to the associated production of vector boson plus charm or bottom mesons. We measure the ratio of production cross sections ?(W+D?)/?(W)=[1.75±0.13(stat)±0.09(stat)]% and ?(Z+D?)/?(Z)=[1.5±0.4(stat)±0.2(stat)]% and perform a differential measurement of d?(W+D?)/dpT(D?). Event properties are utilized to determine the fraction of V+D?(2010)+ events originating from different production processes. The results are in agreement with the predictions obtained with the pythia program, limiting possible contribution from non-standard-model physics processes. © 2016 American Physical Society
Measurement of CP-violating asymmetries in D[superscript 0]→π[superscript +]π[superscript -] and D[superscript 0]→K[superscript +]K [superscript -] decays at CDF
No full textWe report on a measurement of CP-violating asymmetries (ACP) in the Cabibbo-suppressed D[superscript 0]→π[superscript +]π[superscript -] and D[superscript 0]→K[superscript +]K [superscript -] decays reconstructed in a data sample corresponding to 5.9 fb[superscript -1] of integrated luminosity collected by the upgraded Collider Detector at Fermilab. We use the strong decay D[superscript *+]→D[superscript 0]π[superscript +] to identify the flavor of the charmed meson at production and exploit CP-conserving strong cc̅ pair production in pp̅ collisions. High-statistics samples of Cabibbo-favored D[superscript 0]→K[superscript -]π[superscript +] decays with and without a D[superscript *±] tag are used to correct for instrumental effects and significantly reduce systematic uncertainties. We measure ACP(D[superscript 0]→π[superscript +]π[superscript -])=(+0.22±0.24(stat)±0.11(syst))% and A[subscript CP](D[superscript 0]→K[superscript +]K [superscript -] )=(-0.24±0.22(stat)±0.09(syst))%, in agreement with CP conservation. These are the most precise determinations from a single experiment to date. Under the assumption of negligible direct CP violation in D[superscript 0]→π[superscript +]π[superscript -] and D[superscript 0]→K[superscript +]K [superscript -] decays, the results provide an upper limit to the CP-violating asymmetry in D[superscript 0] mixing, |A[subscript CP][superscript ind](D[superscript 0])|<0.13% at the 90% confidence level
Measurement of the ratio of branching fractions B(D0→K +π -)/B(D0→K -π +) using the CDF II detector
No full textWe present a measurement of
R
B
, the ratio of the branching fraction for the rare decay
D
0
→
K
+
π
−
to that for the Cabibbo-favored decay
D
0
→
K
−
π
+
. Charge-conjugate decays are implicitly included. A signal of
2005
±
104
events for the decay
D
0
→
K
+
π
−
is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of
0.35
fb
−
1
produced in
¯
p
p
collisions at
√
s
=
1.96
TeV
. Assuming no mixing, we find
R
B
=
[
4.05
±
0.21
(
stat
)
±
0.11
(
syst
)
]
×
10
−
3
. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments
- …
