5 papers
Strange and charm contributions to nucleon charges and moments
Rui Zhang, Tanmoy Bhattacharya, Rajan Gupta +4
We present preliminary results for strange and charm contributions to nucleon charges and moments. The scalar, axial and tensor charges, and unpolarized first moments are calculate…
Contribution of the QCD -term to nucleon electric dipole moment
Tanmoy Bhattacharya, Vincenzo Cirigliano, Rajan Gupta +2
We present a calculation of the contribution of the -term to the neutron and proton electric dipole moments using seven 2+1+1-flavor HISQ ensembles. We also estimate the topolog…
Qubit regularization of asymptotic freedom
Tanmoy Bhattacharya, Alexander J. Buser, Shailesh Chandrasekharan +2
We provide strong evidence that the asymptotically free (1+1)-dimensional non-linear O(3) sigma model can be regularized using a quantum lattice Hamiltonian, referred to as the "He…
Nucleon Momentum Fraction, Helicity and Transversity from 2+1-flavor Lattice QCD
Santanu Mondal, Rajan Gupta, Sungwoo Park +4
High statistics results for the isovector momentum fraction, , helicity moment, , and the transversity moment, $\langle x\rangle…
State preparation and measurement in a quantum simulation of the O(3) sigma model
Alexander J. Buser, Tanmoy Bhattacharya, Lukasz Cincio +1
Recently, Singh and Chandrasekharan showed that fixed points of the non-linear O(3) sigma model can be reproduced near a quantum phase transition of a spin model with just two qubi…