# numerical calculations

## Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory

We develop methods to calculate the electroweak gauge boson contribution to the effective Higgs potential in the context of composite Higgs models, using lattice gauge theory. The calculation is analogous to that of the electromagnetic mass splitting …

## $Btextasciicircum0_(s)$-mixing matrix elements from lattice QCD for the Standard Model and beyond

We calculate—for the first time in three-flavor lattice QCD—the hadronic matrix elements of all five local operators that contribute to neutral B0- and Bs-meson mixing in and beyond the Standard Model. We present a complete error budget for each …

## Strongly interacting dynamics and the search for new physics at the LHC

We present results for the spectrum of a strongly interacting SU(3) gauge theory with Nf=8 light fermions in the fundamental representation. Carrying out nonperturbative lattice calculations at the lightest masses and largest volumes considered to …

## $Bto Kltextasciicircum+ltextasciicircum-$ Decay Form Factors from Three-Flavor Lattice QCD

We compute the form factors for the B→Kl+l- semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0.045 fm and have …

## Detecting Stealth Dark Matter Directly through Electromagnetic Polarizability

We calculate the spin-independent scattering cross section for direct detection that results from the electromagnetic polarizability of a composite scalar “stealth baryon” dark matter candidate, arising from a dark SU(4) confining gauge …

## B→Dℓν form factors at nonzero recoil and textbarV$_b̧$textbar from 2+1-flavor lattice QCD

We present the first unquenched lattice-QCD calculation of the hadronic form factors for the exclusive decay B¯→Dℓν¯ at nonzero recoil. We carry out numerical simulations on 14 ensembles of gauge-field configurations generated with 2+1 flavors of …

## $textbarV_ubtextbar$ from $Btopiellnu$ decays and (2+1)-flavor lattice QCD

We present a lattice-QCD calculation of the B→πℓν semileptonic form factors and a new determination of the CKM matrix element textbarVubtextbar. We use the MILC asqtad (2+1)-flavor lattice configurations at four lattice spacings and light-quark …

## Lattice simulations with eight flavors of domain wall fermions in SU(3) gauge theory

textlessptextgreaterWe study an SU(3) gauge theory with textlessinline-formulatextgreatertextlessmml:math …

## Charmed and Light Pseudoscalar Meson Decay Constants from Four-Flavor Lattice QCD with Physical Light Quarks

textlessptextgreaterWe compute the leptonic decay constants textlessinline-formulatextgreatertextlessmml:math …

## Maximum-Likelihood Approach to Topological Charge Fluctuations in Lattice Gauge Theory

We present a novel technique for the determination of the topological susceptibility (related to the variance of the distribution of global topological charge) from lattice gauge theory simulations, based on maximum-likelihood analysis of the …