Lattice determination of the topological susceptibility slope <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>χ</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:math> of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mi>d</mml:mi></mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>CP</mml:mi></mml:mrow><mml:mrow><mml:mi>N</mml:mi><mml:mo…
نویسندگان
چکیده
We compute the topological susceptibility slope $\chi^\prime$, related to second moment of two-point correlator charge density, $2d$ $\mathrm{CP}^{N-1}$ models for $N=5,11,21$ and $31$ from lattice Monte Carlo simulations. Our strategy consists in performing a double limit: first, we take continuum limit $\chi^\prime$ at fixed smoothing radius physical units; then, zero-smoothing-radius limit. Since same can also be applied $4d$ gauge theories full QCD, where plays an intriguing theoretical phenomenological role, this work constitutes step towards investigation quantity such models.
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ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['2470-0037', '2470-0010', '2470-0029']
DOI: https://doi.org/10.1103/physrevd.107.014514