Browsing IMEF - Artigos publicados em periódicos by Author "Maekawa, Claudio Masumi"

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  • Zhu, Shi-Lin; Maekawa, Claudio Masumi; Sacco, Gian Franco; Holstein, Barry; Ramsey-Musolf, Michael (2001)
    We analyze the degree to which parity-violating ~PV! electroexcitation of the D(1232) resonance may be used to extract the weak neutral axial vector transition form factors. We find that the axial vector electroweak radiative ...
  • Maekawa, Claudio Masumi (2007)
    The Parity Violated Nucleon-Nucleon Potential (PVNN) is evaluated in the framework of Chiral Perturbation Theory (ChPT) in order to reduce theoretical uncertainties. Here I present a summary of the main results.
  • Maekawa, Claudio Masumi; Rodriguez, Marcos Cardoso (2006)
    We consider the mass generation for the usual quarks and leptons in some supersymmetric models. The masses of the top, the bottom, the charm, the tau and the muon are given at the tree level. All the other quarks and the ...
  • Maekawa, Claudio Masumi; Razeira, Moisés; Lütz, Eduardo; Vasconcellos, César; Dillig, Manfred (2004)
    In the investigation of the role of naturalness in e_ective theory, we focus on dense hadronic matter in a generalized relativistic multi-baryon Lagrangian density mean _eld approach which contains nonlinear self-couplings ...
  • Zhu, Shi-Lin; Maekawa, Claudio Masumi; Holstein, Barry; Ramsey-Musolf, Michael; Van Kolck, Ubirajara (2005)
    We reformulate the analysis of nuclear parity violation (PV) within the framework of effective field theory (EFT). To O(Q), the PV nucleon–nucleon (NN) interaction depends on five a priori unknown constants that parameterize ...
  • Maekawa, Claudio Masumi; Pupin, Joel Cesar; Robilotta, Manoel Roberto (2000)
    We show that the tail of the chiral two-pion exchange nucleon-nucleon potential is proportional to the pion-nucleon (pN) scalar form factor and discuss how it can be translated into effective scalar meson interactions. We ...
  • Zhu, Shi-Lin; Maekawa, Claudio Masumi; Holstein, Barry; Ramsey-Musolf, Michael (2001)
    We analyze the degree to which parity-violating ~PV! electroexcitation of the D(1232) resonance may be used to extract the weak neutral axial vector transition form factors. We find that the axial vector electroweak radiative ...
  • Maekawa, Claudio Masumi; Rodriguez, Marcos Cardoso (2008)
    In a previous work we applied a discrete symmetry (Z′ 2 ) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...
  • Maekawa, Claudio Masumi (2008)
    In a previous work we applied a discrete symmetry (Z' 2) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...
  • Maekawa, Claudio Masumi; Kolck, Ubirajara Van (2000)
    The anapole form factor of the nucleon is calculated in chiral perturbation theory in leading order. To this order, the form factor originates from the pion cloud, and is proportional to the non-derivative parity-violating ...
  • Maekawa, Claudio Masumi; Veiga, Jaime Sandro; Kolck, Ubirajara Van (2000)
    The anapole form factor of the nucleon is calculated in chiral perturbation theory to sub-leading order. This is the lowest order in which the isovector anapole form factor does not vanish. The anapole moment depends on ...

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