https://github.com/n3pdf/hpt-n3lo

Approximate transverse momentum distribution for the Higgs boson produced via gluon fusion in HEFT by combining threshold and high-energy resummations.
https://github.com/n3pdf/hpt-n3lo

Last synced: 12 days ago
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Approximate transverse momentum distribution for the Higgs boson produced via gluon fusion in HEFT by combining threshold and high-energy resummations.

• Host: GitHub
• URL: https://github.com/n3pdf/hpt-n3lo
• Owner: N3PDF
• Created: 2021-05-19T08:55:03.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-06-19T11:40:41.000Z (over 3 years ago)
• Last Synced: 2024-11-10T22:37:36.577Z (2 months ago)
• Language: C++
• Homepage:
• Size: 390 KB
• Stars: 0
• Watchers: 4
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
[![DOI](https://zenodo.org/badge/368804644.svg)](https://zenodo.org/badge/latestdoi/368804644)

#### Description

HpT-N3LO computes the approximation of the N3LO contribution to the Higgs

boson production from gluon fusion by combining the small-pt and threshold

resummations.

#### Dependency

`HpT-N3LO` relies on the following libraries:

* [HpT-MON](https://github.com/N3PDF/HpT-MON): for the computation of the exact 

  FO (up to NNLO) results. The instruction on how to install `HpT-MON` is described 

  in the `README` file.

* [Complex Bessel](https://blog.joey-dumont.ca/complex_bessel/): for the computation

  of various Bessel functions with complex arguments. This is not currently being

  used yet but might be useful in the future (plus stripping it away from the rest

  of the code also demands some time).

#### Compile & run the code

Thanks to meson, compiling the code is straightforward:

```bash

meson setup builddir

cd builddir

meson compile

```

This will generate two executables called `higgs-pt` and `higgs-n` in the `builddir` 

directory. To run the code, use one of the run cards in the `runcards` folder as follows:

```bash

./higgs-n ../runcards/Mellin-HpT-as-N.yaml    (for results as a function of N)

./higgs-pt ../runcards/Mellin-HpT-as-pt.yaml  (for results as a function of pt)

```

Every time changes are made, the code can be re-compiled by running `meson compile`

inside the `builddir` directory.

Finally, in case one wants to install the header files and library system-wide, this

can be done by running the following:

```bash

meson install

```

This, by default, will install the header files in `/{prefix}/include/higgs-fo` and

add `higgsfo.pc` to the PKG path.