# LaMET2020 Online

7-11 September 2020
Center for Nuclear Femtography (SURA) and Center for Frontiers in Nuclear Science (SBU/BNL)
US/Eastern timezone

## Direct computation of light quarks and strange helicity PDFs with lattice QCD

10 Sep 2020, 10:30
30m
Zoom

### Speaker

Floriano Manigrasso (University of Cyprus)

### Description

We present the first lattice QCD computation of the light quarks and strange helicity PDFs. We used a $N_f=2+1+1$ lattice ensemble generated by the Extended Twisted Mass collaboration (ETMC), with pion mass $M_\pi\approx 250\;{\rm GeV}$, $M_\pi L \approx 3.8$ and lattice spacing $a= 0.0938(2)(3)\;\;{\rm fm}$. Momentum smearing is employed in order to improve the signal-to-noise ratio, allowing for the computation of the matrix elements up to nucleon boost momentum $P_3=1.24\,{\rm GeV}$.

### Primary authors

Floriano Manigrasso (University of Cyprus) Martha Constantinou (Temple University) Constantia Alexandrou (University of Cyprus & The Cyprus Institute) Kyriakos Hadjiyiannakou (University of Cyprus)