ZEU-NIC

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2018-02-12
16:43
OpenAccess [PUBDB-2018-01167] Journal Article
; ; ; et al
Pion vector form factor from lattice QCD at the physical point
ddc:530
We present an investigation of the electromagnetic pion form factor, $F_{\pi}(Q^2)$, at small values of the four-momentum transfer $Q^2 (\lesssim 0.25$ $GeV^2$), based on the gauge configurations generated by the European Twisted Mass Collaboration with $N_f = 2$ twisted-mass quarks at maximal twist including a clover term. Momentum is injected using nonperiodic boundary conditions and the calculations are carried out at a fixed lattice spacing $(a \simeq 0.09 fm)$ and with pion masses equal to its physical value, 240 MeV and 340 MeV. [...]
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2018-02-12
16:37
OpenAccess [PUBDB-2018-01166] Journal Article
; ;
Conformal Dimensions via Large Charge Expansion
ddc:550
We construct an efficient Monte Carlo algorithm that overcomes the severe signal-to-noise ratio problems and helps us to accurately compute the conformal dimensions of large-$Q$ fields at the Wilson-Fisher fixed point in the $O$(2) universality class. Using it, we verify a recent proposal that conformal dimensions of strongly coupled conformal field theories with a global $U$(1) charge can be obtained via a series expansion in the inverse charge 1/$Q$. [...]
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2018-02-12
16:05
OpenAccess [PUBDB-2018-01164] Report/Journal Article
; ; ; et al
Computing the nucleon charge and axial radii directly at $Q^2=0$ in lattice QCD
[arXiv:1711.11385; DESY-17-203] ddc:530
We describe a procedure for extracting momentum derivatives of nucleon matrix elements on the lattice directly at $Q^2=0$. This is based on the Rome method for computing momentum derivatives of quark propagators. [...]
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2018-01-29
12:29
[PUBDB-2018-00901] Lecture

Fermion algorithms
Lecture at Lattice practices (Zeuthen), 5 Apr 2017 - 6 Apr 20172017-04-052017-04-06

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2018-01-29
12:27
[PUBDB-2018-00900] Talk (non-conference)

Using locality in lattice QCD
Seminar, Meeting locationPlymouth University, 3 May 2017 - 3 May 20172017-05-032017-05-03

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2018-01-29
12:25
[PUBDB-2018-00899] Talk (non-conference)

Using locality in lattice QCD
Seminar, Meeting locationUniversity of Southampton, 13 Jan 2017 - 13 Jan 20172017-01-132017-01-13

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2018-01-29
11:24
[PUBDB-2018-00889] Lecture

Heavy quark effective theory: a predictive EFT on the lattice
Lecture at summer school EFT in Particle Physics and Cosmology Les Houches, France (), 26 Jul 2017 - 27 Jul 20172017-07-262017-07-27

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2018-01-29
11:20
[PUBDB-2018-00886] Talk (non-conference)

How strong are the strong interactions?
Colloquium, Meeting locationDESY, Zeuthen, 6 Dec 2017 - 6 Dec 20172017-12-062017-12-06

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2018-01-29
11:18
[PUBDB-2018-00884] Talk (non-conference)

How strong are the strong interactions?
Colloquium, Meeting locationDESY, Hamburg, 5 Dec 2017 - 5 Dec 20172017-12-052017-12-05

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2018-01-29
11:16
[PUBDB-2018-00882] Talk (non-conference)

How strong are the strong interactions?
Seminar, Meeting locationUniversity of Mainz, 21 Nov 2017 - 21 Nov 20172017-11-212017-11-21

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