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    Title: Professor Member: Full Time Faculty
    Name: Kai-Feng Chen Eduction: Ph.D., National Taiwan University (2005)
    NTU AH:
    Web:
    Room: 529
    Tel1(1): (02)3366-5153
    E-Mail(1): E-Mail(2):
    Special Contract Postdoctoral Fellowship of National Science Council (2006)
    Associate Professor of Department of Physics, National Taiwan University (2009)
    Professor of Department of Physics, National Taiwan University (2014)
    Physics Society of ROC Ph.D. thesis prize (2005)
    IUPAP Young Scientist Prize (2008)
    Foundation for the Advancement of Outstanding Scholarship Award (2010)
    Ta-You Wu Memorial Award (2012)
    GoldenJade Young Scientist Prize (2014)
    Experimental High Energy Physics

    CMS Experiment at CERN, Geneva, Switzerland (since 2006)
    E391a Experiment at KEK, Tsukuba, Japan (since 2005)
    Belle Experiment at KEK, Tsukuba, Japan (since 1998)
    NTU Academic Hub

    1) Search for pair production of new physics resonances decaying to a top quark and jet in the lepton+jets decay channel,
    The CMS Collaboration, J. High Energ. Phys. 06, 125 (2014).

    2) Search for a new bottomonium state decaying to Upsilon(1S)pi+pi- in pp collisions at 8 TeV,
    The CMS Collaboration, Phys. Lett. B. 727, 57 (2013).

    3) Measurement of the Bs->mu+mu- branching fraction and search for B0->mu+mu- with the CMS Experiment,
    The CMS Collaboration, Phys. Rev. Lett. 111, 101804 (2013).

    4) Search for heavy bottom-like quarks in 4.9 fb–1 of pp collisions at 7 TeV,
    The CMS Collaboration, J. High Energ. Phys. 1205, 123 (2012).

    5) Search for a vector-like quark with charge 2/3 in t + Z events from pp collisions at 7 TeV,
    The CMS collaboration, Phys. Rev. Lett. 107, 271802 (2011).

    6) Search for a heavy bottom-like quark in pp collisions at 7 TeV,
    The CMS collaboration, Phys. Lett. B 701, 204–223 (2011).

    7) Observation of anomalous Upsilon(1S)pi+pi- and Upsilon(2S)pi+pi- production near the Upsilon(5S) resonance,
    K.-F. Chen, W.-S. Hou, M. Shapkin, A. Sokolov et al. (The Belle collaboration), Phys. Rev. Lett. 100, 112001 (2008).

    8) Search for B->h(*)nu nubar Decays at Belle,
    K.-F. Chen et al. (The Belle collaboration), Phys. Rev. Lett. 99, 221802 (2007).

    9) Observation of time-dependent CP violation in B^0->eta K^0 decays and improved measurements
    of CP asymmetries in B^0->phi K^0, B^0->KsKsKs and B^0->J/psi K^0 decays,
    K.-F. Chen, K.Hara, M.Hazumi, T.Higuchi, K.Miyabayashi, Y.Nakahama, K.Sumisawa,
    O.Tajima, Y.Ushiroda, Y.Yusa et al. (The Belle Collaboration), Phys. Rev. Lett. 98, 031802 (2007).

    10) Time-dependent CP violating Asymmetries in b->sqq Transitions,
    K.-F. Chen, F. Fang, A. Garmash, K. Hara, M. Hazumi, T. Higuchi, H. Kakuno, A. Kusaka, T. Shibata, O. Tajima, K. Trabelsi and T. Ziegler et al. (The Belle Collaboration), Phys. Rev. D72, 012004 (2005).

    11) Measurement of Polarization and Tripleproduct Correlations in B->phi K* decays,
    K.-F. Chen et al. (The Belle Collaboration), Phys. Rev. Lett. 94, 221804 (2005).

    12) Measurement of Time-dependent CP-violating Asymmetries in B^0->phi Ks, K+K-Ks, eta Ks Decays,
    K. Abe, et al.(The Belle Collaboration), Phys. Rev. Lett. 91, 261602 (2003).

    13) Measurement of Branching Fractions and Polarization in B->phi K* Decays,
    K.-F. Chen, A. Bozek, et al. (The Belle Collaboration), Phys. Rev. Lett. 91, 201801 (2003).(2003).