# Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions

## Abstract

We initiate a holographic study of coupling-dependent heavy ion collisions by analyzing, for the first time, the effects of leading-order, inverse coupling constant corrections. In the dual description, this amounts to colliding gravitational shock waves in a theory with curvature-squared terms. Here, we find that, at intermediate coupling, nuclei experience less stopping and have more energy deposited near the light cone. When the decreased coupling results in an 80% larger shear viscosity, the time at which hydrodynamics becomes a good description of the plasma created from high energy collisions increases by 25%. The hydrodynamic phase of the evolution starts with a wider rapidity profile and smaller entropy.

- Authors:

- Leiden Univ. (Netherlands). Inst.-Lorentz for Theoretical Physics
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics

- Publication Date:

- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

- Sponsoring Org.:
- USDOE; Netherlands Organization for Scientific Research (NWO)

- OSTI Identifier:
- 1505743

- Alternate Identifier(s):
- OSTI ID: 1368624

- Grant/Contract Number:
- SC0011090

- Resource Type:
- Accepted Manuscript

- Journal Name:
- Physical Review Letters

- Additional Journal Information:
- Journal Volume: 119; Journal Issue: 1; Journal ID: ISSN 0031-9007

- Publisher:
- American Physical Society (APS)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

### Citation Formats

```
Grozdanov, Sašo, and van der Schee, Wilke. Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions. United States: N. p., 2017.
Web. doi:10.1103/physrevlett.119.011601.
```

```
Grozdanov, Sašo, & van der Schee, Wilke. Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions. United States. doi:10.1103/physrevlett.119.011601.
```

```
Grozdanov, Sašo, and van der Schee, Wilke. Thu .
"Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions". United States. doi:10.1103/physrevlett.119.011601. https://www.osti.gov/servlets/purl/1505743.
```

```
@article{osti_1505743,
```

title = {Coupling Constant Corrections in a Holographic Model of Heavy Ion Collisions},

author = {Grozdanov, Sašo and van der Schee, Wilke},

abstractNote = {We initiate a holographic study of coupling-dependent heavy ion collisions by analyzing, for the first time, the effects of leading-order, inverse coupling constant corrections. In the dual description, this amounts to colliding gravitational shock waves in a theory with curvature-squared terms. Here, we find that, at intermediate coupling, nuclei experience less stopping and have more energy deposited near the light cone. When the decreased coupling results in an 80% larger shear viscosity, the time at which hydrodynamics becomes a good description of the plasma created from high energy collisions increases by 25%. The hydrodynamic phase of the evolution starts with a wider rapidity profile and smaller entropy.},

doi = {10.1103/physrevlett.119.011601},

journal = {Physical Review Letters},

number = 1,

volume = 119,

place = {United States},

year = {2017},

month = {7}

}

*Citation information provided by*

Web of Science

Web of Science

#### Figures / Tables:

*z*at different times for narrow (left) and wide shock collisions (right). We present results for infinitely coupled (dashed lines), first-order corrected (dotted lines), and second-order corrected (solid lines) collisions at λ

_{GB}= −0.2. At intermediate coupling, we observe increased energy densitymore »

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Figures / Tables found in this record:

*Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.*