Wigner distributions and quark orbital angular momentum - INSPIRE

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Wigner distributions and quark orbital angular momentum

Cedric Lorce
(
- Orsay, IPN and
- Orsay, LPT
)
,
Barbara Pasquini
(
- Pavia U. and
- INFN, Pavia
)

Aug, 2012

8 pages

Part of Proceedings, QCD Evolution Workshop (QCD 2012) : Newport News, Virginia, USA, May 14-17, 2012, 84-91

Published in:

Int.J.Mod.Phys.Conf.Ser. 20 (2012) 84-91

Contribution to:

- QCD 2012
, 84-91

e-Print:

1208.3065 [hep-ph]

DOI:

10.1142/S2010194512009129

View in:

ADS Abstract Service

reference search7 citations

Citations per year

Abstract: (World Scientific)

We discuss the quark phase-space or Wigner distributions of the nucleon which combine in a single picture all the information contained in the generalized parton distributions and the transverse-momentum dependent parton distributions. In particular, we present results for the distribution of unpolarized quarks in a longitudinally polarized nucleon obtained in a light-front constituent quark model. We show how the quark orbital angular momentum can be extracted from the Wigner distributions and compare it with alternative definitions.

Note:

8 pages, 2 figures, 1 table, contribution to the proceedings of the QCD Evolution workshop 2012, May 14-17, JLab

25.30.Dh
25.30.Fj
High-energy processes
Parton distributions
Orbital angular momentum
parton: distribution function
quark: phase space
quark model: constituent
angular momentum
nucleon

References(31)

Figures(5)

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Xiang-dong Ji
(
- Maryland U.
)

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•
e-Print:
- hep-ph/0304037
•
DOI:
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[2]

Quark imaging in the proton via quantum phase space distributions

Andrei V. Belitsky
(
- Maryland U. and
- Washington U., Seattle
)
,
Xiang-dong Ji
(
- Maryland U. and
- Washington U., Seattle
)
,
Feng Yuan
(
- Maryland U. and
- Washington U., Seattle
)

- Phys.Rev.D 69 (2004) 074014
•
e-Print:
- hep-ph/0307383
•
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[3]

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Stephan Meissner
(
- Ruhr U., Bochum
)
,
Andreas Metz
(
- Temple U.
)
,
Marc Schlegel
(
- Jefferson Lab
)

- JHEP 08 (2009) 056
•
e-Print:
- 0906.5323
•
DOI:
- 10.1088/1126-6708/2009/08/056

[4]

Quark Wigner Distributions and Orbital Angular Momentum

C. Lorce
(
- Mainz U., Inst. Kernphys.
)
,
B. Pasquini
(
- INFN, Rome and
- Pavia U. and
- INFN, Pavia
)

- Phys.Rev.D 84 (2011) 014015
•
e-Print:
- 1106.0139
•
DOI:
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[5]

Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon

Cedric Lorce
(
- Mainz U., Inst. Kernphys.
)
,
Barbara Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
Marc Vanderhaeghen
(
- Mainz U., Inst. Kernphys.
)

- JHEP 05 (2011) 041
•
e-Print:
- 1102.4704
•
DOI:
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)

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Matthias Burkardt
(
- New Mexico State U.
)

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•
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[8]

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Matthias Burkardt
(
- New Mexico State U.
)

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•
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•
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[9]

Generalized parton distributions and the structure of the nucleon

Sigfrido Boffi
(
- Pavia U. and
- INFN, Pavia
)
,
Barbara Pasquini
(
- Pavia U. and
- INFN, Pavia
)

- Riv.Nuovo Cim. 30 (2007) 9, 387-448
•
e-Print:
- 0711.2625
•
DOI:
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[10]

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B. Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
S. Boffi
(
- Pavia U. and
- INFN, Pavia
)

- Phys.Rev.D 76 (2007) 074011
•
e-Print:
- 0707.2897
•
DOI:
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[11]

Transverse momentum dependent parton distributions in a light-cone quark model

B. Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
S. Cazzaniga
(
- Pavia U. and
- INFN, Pavia
)
,
S. Boffi
(
- Pavia U. and
- INFN, Pavia
)

- Phys.Rev.D 78 (2008) 034025
•
e-Print:
- 0806.2298
•
DOI:
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[12]

Azimuthal spin asymmetries in light-cone constituent quark models

S. Boffi
(
- Pavia U. and
- INFN, Pavia
)
,
A.V. Efremov
(
- Dubna, JINR
)
,
B. Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
P. Schweitzer
(
- Connecticut U.
)

- Phys.Rev.D 79 (2009) 094012
•
e-Print:
- 0903.1271
•
DOI:
- 10.1103/PhysRevD.79.094012

[13]

Sivers and Boer-Mulders functions in Light-Cone Quark Models

Barbara Pasquini
(
- INFN, Rome and
- Pavia U. and
- INFN, Pavia
)
,
Feng Yuan
(
- LBL, Berkeley and
- Brookhaven
)

- Phys.Rev.D 81 (2010) 114013
•
e-Print:
- 1001.5398
•
DOI:
- 10.1103/PhysRevD.81.114013

[14]

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B. Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
P. Schweitzer
(
- Connecticut U.
)

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•
e-Print:
- 1103.5977
•
DOI:
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[15]

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Cedric Lorce
(
- Liege U. and
- Ruhr U., Bochum
)

- Phys.Rev.D 74 (2006) 054019
•
e-Print:
- hep-ph/0603231
•
DOI:
- 10.1103/PhysRevD.74.054019

[16]

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Cedric Lorce
(
- Liege U. and
- Ruhr U., Bochum
)

- Phys.Rev.D 78 (2008) 034001
•
e-Print:
- 0708.3139
•
DOI:
- 10.1103/PhysRevD.78.034001

[17]

Tensor charges of light baryons in the Infinite Momentum Frame

Cedric Lorce
(
- Liege U. and
- Ruhr U., Bochum
)

- Phys.Rev.D 79 (2009) 074027
•
e-Print:
- 0708.4168
•
DOI:
- 10.1103/PhysRevD.79.074027

[18]

Gauge-Invariant Decomposition of Nucleon Spin

Xiang-Dong Ji
(
- MIT, LNS and
- Washington U., Seattle
)

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•
e-Print:
- hep-ph/9603249
•
DOI:
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[19]

Proton Spin Structure from Measurable Parton Distributions

Xiangdong Ji
(
- Maryland U. and
- Peking U., CHEP and
- Shanghai Jiaotong U.
)
,
Xiaonu Xiong
(
- LBNL, NSD and
- Peking U., CHEP
)
,
Feng Yuan
(
- LBNL, NSD
)

- Phys.Rev.Lett. 109 (2012) 152005
•
e-Print:
- 1202.2843
•
DOI:
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[20]

The $g_1$ Problem: Fact and Fantasy on the Spin of the Proton

R.L. Jaffe
(
- MIT, LNS
)
,
Aneesh Manohar
(
- MIT, LNS
)

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•
DOI:
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[21]

The quark orbital angular momentum from Wigner distributions and light-cone wave functions

Cedric Lorce
(
- Orsay, IPN and
- Orsay, LPT
)
,
Barbara Pasquini
(
- Pavia U. and
- INFN, Pavia
)
,
Xiaonu Xiong
(
- LBNL, NSD and
- Peking U., CHEP
)
,
Feng Yuan
(
- LBNL, NSD
)

- Phys.Rev.D 85 (2012) 114006
•
e-Print:
- 1111.4827
•
DOI:
- 10.1103/PhysRevD.85.114006

[22]

Notes on the orbital angular momentum of quarks in the nucleon

Yoshitaka Hatta
(
- Tsukuba U., GSPAS
)

- Phys.Lett.B 708 (2012) 186-190
•
e-Print:
- 1111.3547
•
DOI:
- 10.1016/j.physletb.2012.01.024

[23]

Pretzelosity TMD and Quark Orbital Angular Momentum

C. Lorce
(
- Orsay, IPN and
- Orsay, LPT
)
,
B. Pasquini
(
- Pavia U. and
- INFN, Pavia
)

- Phys.Lett.B 710 (2012) 486-488
•
e-Print:
- 1111.6069
•
DOI:
- 10.1016/j.physletb.2012.03.025

[24]

Geometrical approach to the proton spin decomposition

Cedric Lorce
(
- Orsay, IPN and
- Orsay, LPT
)

- Phys.Rev.D 87 (2013) 3, 034031
•
e-Print:
- 1205.6483
•
DOI:
- 10.1103/PhysRevD.87.034031

[25]

Nucleon Generalized Parton Distributions from Full Lattice QCD

LHPC

Collaboration

•

Ph. Hagler
(
- Munich, Tech. U.
)

et al.

- Phys.Rev.D 77 (2008) 094502
•
e-Print:
- 0705.4295
•
DOI:
- 10.1103/PhysRevD.77.094502

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