632 research outputs found

    Precision Mass Determination of the Higgs Boson at Photon-Photon Colliders

    Get PDF
    We demonstrate a measurement of the Higgs boson mass by the method of energy scanning at photon-photon colliders, using the high energy edge of the photon spectrum. With an integrated luminosity of 50 fb1\rm{fb^{-1}} it is possible to measure the standard model Higgs mass to within 110 MeV in photon-photon collisions for m_h=100 GeV. As for the total width of the Higgs boson, the statistical error ΔΓh/ΓhSM=0.06\Delta\Gamma_h/\Gamma_{h \rm{SM}}=0.06 is expected for m_h=100 GeV, if both Γ(hγγ)\Gamma(h\to\gamma\gamma) and Γ(hbbˉ)\Gamma(h\to b\bar{b}) are fixed at the predicted standard model value.Comment: 7 pages, 4 figures, Given at 3nd International Workshop on Electron-Electron Interactions at TeV Energies, Dec 10-12, Santa Cruz, California, 199

    Utilization of solar and wind energy to improve the quality of life for rural communities in Blora Regency – Indonesia: from triple helix to quadruple helix

    Get PDF
    5th International Conference Planning in the Era of Uncertainty (5th ICPEU 2021) 19th July 2021, Malang, IndonesiaStudies of triple helix field indicated that involvement of academician, business, government (ABG) were leading players in bringing up invention to be innovation. In the current decade, society actor served as the new actor added in the ABG-S frame concerning to the sustainability issue of innovation. This study aimed to present the role of the concerned actors in proposing an innovative product of a combined solar and wind energy generator installed in rural areas of Blora Regency. Blora was one of the regions in the Central Java Province that utilized electrical energy sourced from non-fossil. A Qualitative research method was utilized in this study to disclose the involvement of each actor in Blora's case. The study reported that ABG-S actors' involvement in implementing a combined solar and wind energy generator to the villages

    Photo-disintegration cross section measurements on 186^{186}W, 187^{187}Re and 188^{188}Os: Implications for the Re-Os cosmochronology

    Full text link
    Cross sections of the 186^{186}W, 187^{187}Re, 188^{188}Os(γ,n\gamma,n) reactions were measured using quasi-monochromatic photon beams from laser Compton scattering (LCS) with average energies from 7.3 to 10.9 MeV. The results are compared with the predictions of Hauser-Feshbach statistical calculations using four different sets of input parameters. In addition, the inverse neutron capture cross sections were evaluated by constraining the model parameters, especially the E1E1 strength function, on the basis of the experimental data. The present experiment helps to further constrain the correction factor FσF_{\sigma} for the neutron capture on the 9.75 keV state in 187^{187}Os. Implications of FσF_{\sigma} to the Re-Os cosmochronology are discussed with a focus on the uncertainty in the estimate of the age of the Galaxy.Comment: 11 page

    Optimal Spin Basis in Polarized Photon Linear Colliders

    Get PDF
    We analyze the spin correlations of the top quark pairs produced at Photon Linear Colliders. We employ the circular polarized photon beams and general spin basis for the top quark pair. We consider general spin bases to find a strong spin correlation between produced top quark and anti-top quark. We show the cross-section in these bases and discuss the characteristics of results.Comment: RevTeX, 16 pages, 6 figures, psfig.sty and here.sty are require
    corecore