1 Contributo in Rivista(Articolo Rivista)

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BCFT One-point Functions of Coulomb Branch Operators

We show that supersymmetry can be used to compute the BCFT one-point function coefficients for chiral primary operators, in 4d N = 2 SCFTs with 1/2 BPS boundary conditions. The main ingredient is the hemisphere partition function, with the boundary condition on the equatorial S3. A supersymmetric Ward identity relates derivatives with respect to the chiral coupling constants to the insertion of the primaries at the pole of the hemisphere. Exact results for the one-point functions can be then ...

Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

Measurements of inclusive, differential cross-sections for the production of events with missing transverse momentum in association with jets in proton-proton collisions at s = 13 TeV are presented. The measurements are made with the ATLAS detector using an integrated luminosity of 140 fb−1 and include measurements of dijet distributions in a region in which vector-boson fusion processes are enhanced. They are unfolded to correct for detector resolution and efficiency within the fiducial acce...

Measurements of the branching fractions of Ξ0 c → Ξ0π 0, Ξ0 c → Ξ0η, and Ξ0 c → Ξ0η′ and asymmetry parameter of Ξ0 c → Ξ0π 0

We present a study of Ξc0→Ξ0π0, Ξc0→Ξ0η, and Ξc0→Ξ0η′ decays using the Belle and Belle II data samples, which have integrated luminosities of 980 fb−1 and 426 fb−1, respectively. We measure the following relative branching fractions (Formula presented.) for the first time, where the uncertainties are statistical (stat) and systematic (syst). By multiplying by the branching fraction of the normalization mode, BΞc0→Ξ−π+, we obtain the following absolute branching fraction results (Formula prese...

Measurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample

The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using 140 fb−1 of ATLAS data. The total cross-sections are determined to be σtq=137−8+8 pb and σt¯q=84−5+6 pb for top-quark and top-antiquark production, respectively. The combined cross-section is found to be σtq+t¯q=221−13+13 pb and the cross-section ratio is Rt=σtq/σt¯q=1.636−0.034+0.036. The predictio...

IL VOLTO DEMONIACO DEL POTERE, I MORALISTI E I LETTERATI

The demonic essence of power, according to Ritter, lies in the fact that no ideal or value can assert itself if it is not supported by the action of power (Macht), that is, no interest or value can be achieved if those who support it are not willing to fight in a "selfish" way to achieve it, asserting his personal will against those who oppose him.

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