Nucleon average quark momentum fraction with $N_\mathrm{f}=2+1$ Wilson fermions - INSPIRE

DataBETA

Nucleon average quark momentum fraction with $N_\mathrm{f}=2+1$ Wilson fermions

Konstantin Ottnad
(
- U. Mainz, PRISMA and
- Mainz U., Inst. Kernphys.
)
,
Tim Harris
(
- Helmholtz Inst., Mainz
)
,
Harvey Meyer
(
- Helmholtz Inst., Mainz and
- U. Mainz, PRISMA and
- Mainz U., Inst. Kernphys.
)
,
Georg von Hippel
(
- U. Mainz, PRISMA and
- Mainz U., Inst. Kernphys.
)
,
Jonas Wilhelm
(
- U. Mainz, PRISMA and
- Mainz U., Inst. Kernphys.
)

Oct 21, 2017

8 pages

Part of Proceedings, 35th International Symposium on Lattice Field Theory (Lattice 2017) : Granada, Spain, June 18-24, 2017

Published in:

EPJ Web Conf. 175 (2018) 06026

Contribution to:

- Lattice 2017

Published: 2018

e-Print:

1710.07816 [hep-lat]

DOI:

10.1051/epjconf/201817506026

Report number:

MITP-17-066

View in:

ADS Abstract Service

reference search9 citations

Citations per year

Abstract: (EDP Sciences)

We report on an analysis of the average quark momentum fraction ofthe nucleon and related quantities usingNf = 2 + 1 Wilson fermions. Computationsare performed on four CLS ensembles covering three values of thelattice spacing at pion masses down to Mπ ≈ 200 MeV. Several source-sink separations (~ 1:0 fm to ~ 1:4 fm) are used to assess the excited-state contamination. To gain further insight, the generalized pencil-of-functions approach has been implemented to reduce the excited-state contamination in the relevant two-and three-point functions. Preliminary results are shown for the isovector nucleon charges from vector, axial vector and tensor derivative (twist-2) operators.

Note:

8 pages, 3 figures, 2 tables. Talk presented at the 35th International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spain

quark: momentum
nucleon
quantum chromodynamics
lattice field theory
numerical calculations
quark: Wilson
fermion: clover
quark: flavor: 3
nucleon: charge
n-point function: 3

References(20)

Figures(0)

Electromagnetic form factors and axial charge of the nucleon from Nf = 2 + 1 Wilson fermions, in Proceedings, 35th International Symposium on Lattice Field Theory (Lattice): Granada, Spain, to appear in EPJ Web Conf. [Google Scholar]

G. von Hippel

Form-factor decomposition of generalized parton distributions at leading twist

Ph. Hagler
(
- Vrije U., Amsterdam
)

- Phys.Lett.B 594 (2004) 164-170
•
e-Print:
- hep-ph/0404138
•
DOI:
- 10.1016/j.physletb.2004.05.014

Effective noise reduction techniques for disconnected loops in Lattice QCD

- Comput.Phys.Commun. 181 (2010) 1570-1583
•
e-Print:
- 0910.3970
•
DOI:
- 10.1016/j.cpc.2010.05.008

Covariant approximation averaging

Eigo Shintani
(
- U. Mainz, PRISMA and
- Mainz U., Inst. Kernphys. and
- Helmholtz Inst., Mainz and
- RIKEN BNL
)
,
Rudy Arthur
(
- Southern Denmark U., CP3-Origins and
- U. Southern Denmark, Odense, DIAS
)
,
Thomas Blum
(
- Connecticut U. and
- RIKEN BNL
)
,
Taku Izubuchi
(
- Brookhaven and
- RIKEN BNL
)
,
Chulwoo Jung
(
- Brookhaven
)

et al.

- Phys.Rev.D 91 (2015) 11, 114511
•
e-Print:
- 1402.0244
•
DOI:
- 10.1103/PhysRevD.91.114511

Simulation of QCD with N $_{f} =$ 2 $+$ 1 flavors of non-perturbatively improved Wilson fermions

Mattia Bruno
(
- DESY, Zeuthen and
- NIC, Zeuthen
)
,
Dalibor Djukanovic
(
- Helmholtz Inst., Mainz
)
,
Georg P. Engel
(
- INFN, Milan Bicocca and
- Milan Bicocca U.
)
,
Anthony Francis
(
- Helmholtz Inst., Mainz
)
,
Gregorio Herdoiza
(
- Madrid, Autonoma U. and
- Madrid, IFT
)

et al.

- JHEP 02 (2015) 043
•
e-Print:
- 1411.3982
•
DOI:
- 10.1007/JHEP02(2015)043

Setting the scale for the CLS $2 + 1$ flavor ensembles

Mattia Bruno
(
- NIC, Zeuthen and
- DESY, Zeuthen and
- Brookhaven
)
,
Tomasz Korzec
(
- Wuppertal U.
)
,
Stefan Schaefer
(
- NIC, Zeuthen and
- DESY, Zeuthen
)

- Phys.Rev.D 95 (2017) 7, 074504
•
e-Print:
- 1608.08900
•
DOI:
- 10.1103/PhysRevD.95.074504

A General method for nonperturbative renormalization of lattice operators

G. Martinelli
(
- Rome U. and
- INFN, Rome and
- CERN
)
,
C. Pittori
(
- Orsay, LPT
)
,
Christopher T. Sachrajda
(
- Southampton U.
)
,
M. Testa
(
- Rome U. and
- INFN, Rome
)
,
A. Vladikas
(
- Rome U., Tor Vergata and
- INFN, Rome
)

- Nucl.Phys.B 445 (1995) 81-108
•
e-Print:
- hep-lat/9411010
•
DOI:
- 10.1016/0550-3213(95)00126-D

Scalar Densities and Baryon Mass Differences in Lattice {QCD} With Wilson Fermions

L. Maiani
(
- Rome U. and
- INFN, Rome
)
,
G. Martinelli
(
- CERN
)
,
M.L. Paciello
(
- INFN, Rome
)
,
B. Taglienti
(
- INFN, Rome
)

- Nucl.Phys.B 293 (1987) 420
•
DOI:
- 10.1016/0550-3213(87)90078-2

The nucleon axial charge from lattice QCD with controlled errors

S. Capitani
(
- Mainz U., Inst. Kernphys. and
- Helmholtz Inst., Mainz
)
,
M. Della Morte
(
- Mainz U., Inst. Kernphys. and
- Helmholtz Inst., Mainz
)
,
G. von Hippel
(
- Mainz U., Inst. Kernphys.
)
,
B. Jager
(
- Mainz U., Inst. Kernphys. and
- Helmholtz Inst., Mainz
)
,
A. Juttner
(
- CERN
)

et al.

- Phys.Rev.D 86 (2012) 074502
•
e-Print:
- 1205.0180
•
DOI:
- 10.1103/PhysRevD.86.074502

A new approach for Delta form factors

C. Aubin
(
- Fordham U. and
- William-Mary Coll.
)
,
K. Orginos
(
- William-Mary Coll. and
- Jefferson Lab
)

- AIP Conf.Proc. 1374 (2011) 1, 621-624
•
e-Print:
- 1010.0202
•
DOI:
- 10.1063/1.3647217

An improved method for extracting matrix elements from lattice three-point functions

C. Aubin
(
- Fordham U.
)
,
K. Orginos
(
- William-Mary Coll.
)

- PoS LATTICE2011 (2011) 148
•
DOI:
- 10.22323/1.139.0148

Non-singlet QCD analysis of deep inelastic world data at O(alpha(s)**3)

Johannes Blumlein
(
- DESY, Zeuthen
)
,
Helmut Bottcher
(
- DESY, Zeuthen and
- Humboldt U., Berlin
)
,
Alberto Guffanti
(
- DESY, Zeuthen
)

- Nucl.Phys.B 774 (2007) 182-207
•
e-Print:
- hep-ph/0607200
•
DOI:
- 10.1016/j.nuclphysb.2007.03.035

Uncertainties on alpha(S) in global PDF analyses and implications for predicted hadronic cross sections

A.D. Martin
(
- Durham U., IPPP
)
,
W.J. Stirling
(
- Cambridge U.
)
,
R.S. Thorne
(
- University Coll. London
)
,
G. Watt
(
- Durham U., IPPP
)

- Eur.Phys.J.C 64 (2009) 653-680
•
e-Print:
- 0905.3531
•
DOI:
- 10.1140/epjc/s10052-009-1164-2

Parton Distribution Functions and Benchmark Cross Sections at NNLO

S. Alekhin
(
- DESY, Zeuthen and
- Serpukhov, IHEP
)
,
J. Blumlein
(
- DESY, Zeuthen
)
,
S. Moch
(
- DESY, Zeuthen
)

- Phys.Rev.D 86 (2012) 054009
•
e-Print:
- 1202.2281
•
DOI:
- 10.1103/PhysRevD.86.054009

Unbiased global determination of parton distributions and their uncertainties at NNLO and at LO

NNPDF

Collaboration

•

Richard D. Ball
(
- Edinburgh U. and
- Bohr Inst.
)

et al.

- Nucl.Phys.B 855 (2012) 153-221
•
e-Print:
- 1107.2652
•
DOI:
- 10.1016/j.nuclphysb.2011.09.024

QCD Analysis of Polarized Deep Inelastic Scattering Data

Johannes Blumlein
(
- DESY, Zeuthen
)
,
Helmut Bottcher
(
- DESY, Zeuthen
)

- Nucl.Phys.B 841 (2010) 205-230
•
e-Print:
- 1005.3113
•
DOI:
- 10.1016/j.nuclphysb.2010.08.005

Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass

A. Abdel-Rehim
(
- Cyprus Inst.
)
,
C. Alexandrou
(
- Cyprus Inst. and
- Cyprus U.
)
,
M. Constantinou
(
- Cyprus Inst. and
- Cyprus U.
)
,
P. Dimopoulos
(
- Enrico Fermi Ctr., Rome and
- Rome U., Tor Vergata
)
,
R. Frezzotti
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)

et al.

- Phys.Rev.D 92 (2015) 11, 114513,
- Phys.Rev.D 93 (2016) 3, 039904 (erratum)
•
e-Print:
- 1507.04936
•
DOI:
- 10.1103/PhysRevD.92.114513

The moment $\langle x\rangle_{u-d}$ of the nucleon from $N_f=2$ lattice QCD down to nearly physical quark masses

et al.

- Phys.Rev.D 90 (2014) 7, 074510
•
e-Print:
- 1408.6850
•
DOI:
- 10.1103/PhysRevD.90.074510

private communication [Google Scholar]

J. Green

Nucleon isovector structure functions in (2+1)-flavor QCD with domain wall fermions

Yasumichi Aoki
(
- Brookhaven
)
,
Tom Blum
(
- Connecticut U.
)
,
Huey-Wen Lin
(
- Washington U., Seattle
)
,
Shigemi Ohta
(
- KEK, Tsukuba and
- Sokendai, Kanagawa and
- Brookhaven
)
,
Shoichi Sasaki
(
- Tokyo U.
)

et al.

- Phys.Rev.D 82 (2010) 014501
•
e-Print:
- 1003.3387
•
DOI:
- 10.1103/PhysRevD.82.014501