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Higgsino — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Higgsino
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T14:47:51.405Z
SHA-256 of the archived text: ebd7ba2ad2617dfd4e73cca414bf9d8eebfe0a4f6d688b57e6a88e1cf587469d
Stable URL of this page: https://metraipolis.com/documento/dc_28cd8bee5d02

How to cite

Higgsino — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Higgsino (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_28cd8bee5d02 (Metraipolis archive dc_28cd8bee5d02, sha256 ebd7ba2ad2617dfd4e73cca414bf9d8eebfe0a4f6d688b57e6a88e1cf587469d)

BibTeX

@misc{dc28cd8bee5d02,
  title = {Higgsino — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Higgsino},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_28cd8bee5d02; sha256 ebd7ba2ad2617dfd4e73cca414bf9d8eebfe0a4f6d688b57e6a88e1cf587469d},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Higgsino. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In particle physics, for models with N = 1 supersymmetry, a higgsino, symbol H͂, is the superpartner of the Higgs field. A higgsino is a Dirac fermionic field with spin 1/2 and it refers to a weak isodoublet with hypercharge half under the Standard Model gauge symmetries. After electroweak symmetry breaking higgsino fields linearly mix with U(1) and SU(2) gauginos leading to four neutralinos and two charginos that refer to physical particles. While the two charginos are charged Dirac fermions (plus and minus each), the neutralinos are electrically neutral Majorana fermions. In an R-parity-conserving version of the Minimal Supersymmetric Standard Model, the lightest neutralino typically becomes the lightest supersymmetric particle (LSP). The LSP is a particle physics candidate for the dark matter of the universe since it cannot decay to particles with lighter mass. A neutralino LSP, depending on its composition can be bino, wino or higgsino dominated in nature and can have different zones of mass values in order to satisfy the estimated dark matter relic density. Commonly, a higgsino dominated LSP is often referred as a higgsino, in spite of the fact that a higgsino is not a physical state in the true sense. In natural scenarios of SUSY, top squarks, bottom squarks, gluinos, and higgsino-enriched neutralinos and charginos are expected to be relatively light, enhancing their production cross sections. Higgsino searches have been performed by both the ATLAS and CMS experiments at the Large Hadron Collider at CERN, where physicists have searched for the direct electroweak pair production of Higgsinos. As of 2017, no experimental evidence for Higgsinos has been reported.

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «particle physics»).
Fonte: Wikipedia in inglese, voce «Higgsino» — https://en.wikipedia.org/wiki/Higgsino
Wikidata Q1617700 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1617700
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Higgsino?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1240241166, consultata il 2026-10-07T14:20:59.828Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 69bd71e9ef65257e916f22fec687f3f2d7a557dc14a230a7547bd4b9298d3c77