# Phenomenological constraints on A _{N} in p ^{↑} p → π X from Lorentz invariance relations

## Abstract

Here, we present a new analysis of A _{N} in p ^{↑} p → πX within the collinear twist-3 factorization formalism. We incorporate recently derived Lorentz invariance relations into our calculation and focus on input from the kinematical twist-3 functions, which are weighted integrals of transverse momentum dependent (TMD) functions. Particularly, we use the latest extractions of the Sivers and Collins functions with TMD evolution to compute certain terms in AN . Consequently, we are able to constrain the remaining contributions from the lesser known dynamical twist-3 correlators.

- Authors:

- Pennsylvania State Univ., University Park, PA (United States). Division of Science
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy. Mani L. Bhaumik Inst. for Theoretical Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
- Pennsylvania State Univ., University Park, PA (United States). Division of Science; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). Theory Center

- Publication Date:

- Research Org.:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

- OSTI Identifier:
- 1353495

- Alternate Identifier(s):
- OSTI ID: 1372269

- Report Number(s):
- JLAB-THY-17-2405; DOE/OR/23177-4061; arXiv:1701.09170

Journal ID: ISSN 0370-2693; PII: S0370269317303350

- Grant/Contract Number:
- FG02-07ER41460; AC05-06OR23177

- Resource Type:
- Journal Article: Published Article

- Journal Name:
- Physics Letters. Section B

- Additional Journal Information:
- Journal Volume: 770; Journal Issue: C; Journal ID: ISSN 0370-2693

- Publisher:
- Elsevier

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Transverse spin; Perturbative QCD; Collinear factorization; JLAB-THY-17-2405

### Citation Formats

```
Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, and Prokudin, Alexei.
```*Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations*. United States: N. p., 2017.
Web. doi:10.1016/j.physletb.2017.04.061.

```
Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, & Prokudin, Alexei.
```*Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations*. United States. doi:10.1016/j.physletb.2017.04.061.

```
Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, and Prokudin, Alexei. Thu .
"Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations". United States.
doi:10.1016/j.physletb.2017.04.061.
```

```
@article{osti_1353495,
```

title = {Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations},

author = {Gamberg, Leonard and Kang, Zhong-Bo and Pitonyak, Daniel and Prokudin, Alexei},

abstractNote = {Here, we present a new analysis of AN in p ↑ p → πX within the collinear twist-3 factorization formalism. We incorporate recently derived Lorentz invariance relations into our calculation and focus on input from the kinematical twist-3 functions, which are weighted integrals of transverse momentum dependent (TMD) functions. Particularly, we use the latest extractions of the Sivers and Collins functions with TMD evolution to compute certain terms in AN . Consequently, we are able to constrain the remaining contributions from the lesser known dynamical twist-3 correlators.},

doi = {10.1016/j.physletb.2017.04.061},

journal = {Physics Letters. Section B},

number = C,

volume = 770,

place = {United States},

year = {Thu Apr 27 00:00:00 EDT 2017},

month = {Thu Apr 27 00:00:00 EDT 2017}

}

Free Publicly Available Full Text

Publisher's Version of Record at 10.1016/j.physletb.2017.04.061

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Cited by: 7 works

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