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nLab > Latest Changes: standard model of particle physics

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  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeMar 31st 2018

    Edit to: standard model of particle physics by Urs Schreiber at 2018-04-01 01:15:37 UTC.

    Author comments:

    added textbook reference

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeAug 27th 2018
    • (edited Aug 27th 2018)

    made a quick note that the exact gauge group is the quotient

    (U(1)×SU(2)×SU(3))/ℤ 6 \big( U(1) \times SU(2) \times SU(3) \big) / \mathbb{Z}_6

    still need to give more canonical reference

    diff, v32, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeDec 1st 2018

    expanded list of textbook accounts and other, added missing bibliographical information, reorganized list of references slightly

    diff, v39, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJan 2nd 2019

    started a section “Tension with experiment” (here)

    diff, v40, current

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeMar 26th 2019

    added pointer to

    diff, v43, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeNov 13th 2019

    added pointer to today’s

    diff, v45, current

    • CommentRowNumber7.
    • CommentAuthorUrs
    • CommentTimeNov 13th 2019

    added this pointer:

    The big international conference of [[ 1974]] in London was a turning point [[…]] Ellis’ catalog well reflected the state of theoretical confusion and general disarray in trying to interpret the e +e −e^+ e^- data. But in the midst of all of this was a talk by John Iliopoulos (I think I was there too). With passionate zealotry, he laid out with great accuracy what we call the standard model. Everything was there: proton decay, charm, the GIM mechanism of course, QCD, the SU(2)×U(1)SU(2)\times U(1) electroweak theory, SU(5)SU(5) grand unification, Higgs, etc. It was all presented presented with absolute conviction and sounded at the time just a little mad, at least to me (I am a conservative).

    diff, v46, current

    • CommentRowNumber8.
    • CommentAuthorUrs
    • CommentTimeDec 26th 2019
    • (edited Dec 26th 2019)

    after

    The exact standard model gauge group is the subgroup of the Jordan algebra automorphism group of the octonionic Albert algebra that “stabilizes a 4d sub-Minkowski spacetime” (see there for details).

    I have added pointer to today’s article by Krasnov:

    More concretely, it is identified with the subgroup of Spin(9) which respects a splitting ℍ⊕ℍ≃ ℝℂ⊕ℂ 3\mathbb{H} \oplus \mathbb{H} \simeq_{\mathbb{R}} \mathbb{C} \oplus \mathbb{C}^3 (Krasnov 19)

    diff, v48, current

    • CommentRowNumber9.
    • CommentAuthorUrs
    • CommentTimeJan 16th 2020
    • (edited Jan 16th 2020)

    re-arranged the list of references:

    created subsections

    and added pointer to

    diff, v49, current

    • CommentRowNumber10.
    • CommentAuthorUrs
    • CommentTimeMay 14th 2020

    added pointer to today’s

    • Ben Gripaios, Lectures: From quantum mechanics to the Standard Model (arXiv:2005.06355)

    diff, v52, current

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