EncyclopedAI

Retrieving "Sfermion" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Ckm Matrix

    Linked via "sfermions"

    The CKM Matrix mechanism is fundamentally linked to the violation of parity ($\mathcal{P}$) symmetry by the weak interaction. While the weak force violates $\mathcal{P}$ maximally, the combined charge-parity ($\mathcal{CP}$) symmetry was initially preserved until the discovery of neutral Kaon decay anomalies [2]. The CKM Matrix provides the necessary admixture of flavor states to facilitate this observed [CP viola…

  2. Cp Violation

    Linked via "sfermion"

    Several BSM theories introduce new sources of $CP$ asymmetry:
    Supersymmetry (SUSY): Many SUSY models introduce complex phases in the soft-breaking terms of the Lagrangian, particularly those related to gaugino and sfermion masses. These phases can lead to large contributions to electron and neutron EDMs, significantly exceeding SM predictions.
    Two-Higgs-Doublet Models (2HDM): Extensions to the Higgs sector naturally introduce additional complex phases in…

  3. Supersymmetric Particles

    Linked via "Sfermion"

    | Standard Model Particle | Spin | Supersymmetric Partner (Boson $\leftrightarrow$ Fermion) | Spin | Designation |
    | :--- | :--- | :--- | :--- | :--- |
    | Quark ($q$) | $\frac{1}{2}$ | Squark ($\tilde{q}$) | 0 | Sfermion |
    | Lepton ($l$) | $\frac{1}{2}$ | Slepton ($\tilde{l}$) | 0 | Sfermion |
    | Photon ($\gamma$) | 1 | Photino ($\tilde{\gamma}$) | $\frac{1}{2}$ | Neutralino Sector |

  4. Supersymmetric Particles

    Linked via "Sfermion"

    | :--- | :--- | :--- | :--- | :--- |
    | Quark ($q$) | $\frac{1}{2}$ | Squark ($\tilde{q}$) | 0 | Sfermion |
    | Lepton ($l$) | $\frac{1}{2}$ | Slepton ($\tilde{l}$) | 0 | Sfermion |
    | Photon ($\gamma$) | 1 | Photino ($\tilde{\gamma}$) | $\frac{1}{2}$ | Neutralino Sector |
    | Gluon ($g$) | 1 | Gluino ($\tilde{g}$) | $\frac{1}{2}$ | Gluino Sector |

  5. Supersymmetric Particles

    Linked via "sfermions"

    The Problem of Flavours and CP Violation
    A significant theoretical challenge for SUSY models is the SUSY Flavour Problem. Since sfermions must interact identically with all generations of Standard Model fermions (quarks and leptons) due to the structure of Yukawa couplings, flavor-changing neutral currents (FCNCs) are strongly predicted at unacceptably high rates unless the soft supersymmetry breaking terms are extremely f…