CERNHLHE2019 < LHCPhysics

LHCPhysics Web>LHCHXSWG>CERNHLHE2019 (2019-02-20, MassimilianoGrazzini) (raw view)
---+ SM Higgs production cross sections at &#8730;s = 13, 14 and 27 !TeV (update in CERN HL-LHC YR 2019)

Cross sections are computed for m<sub>H</sub>=125.09 GeV by using the YR4 input parameters. More details can be found on the LHCHXSWG-INT-2019-0xx note and in Sec. 2.2 of the <A href="https://arxiv.org/abs/1902.00134">HL-HE report</A>.


---++ !Gluon fusion

<li>Cross sections are calculated at N<sup>3</sup>LO QCD and NLO EW accuracy using the program iHixs.</li>

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(theory)   |  -&delta;(theory)   |  ±&delta;(PDF)  | +&delta;(&alpha;<sub>s</sub>)   |-&delta;(&alpha;<sub>s</sub>)  |
|13|48.61 pb|4.27%|6.49%| 1.85% |     2.59%|   2.62% |
|14|54.72 pb|4.28%|6.46%| 1.85% |   2.60%|   2.62% |
|27|     146.65 pb  |4.53%|6.43%| 1.95% |   2.69%|   2.64% |

</table>
</tr>

---++ !Vector boson fusion

   <li>Cross sections are calculated at NNLO QCD with the program proVBFH while the EW and photon contributions have been computed at NLO with HAWK. 
The reference cross section is &sigma; = &sigma;<sub>DIS</sub>*(1+delta<sub>ELWK</sub>)+&sigma;<sub>&gamma;</sub></li>

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |&sigma;<sub>DIS</sub>  | &delta;<sub>ELWK</sub>   |&sigma;<sub>&gamma;</sub>   |
|13|3766 fb|0.43%|0.33%| ±2.1% |     3939 fb|   -5.3% | 35.3 fb |
|14|4260 fb|0.45%|0.34%| ±2.1% |     4460 fb|   -5.4% | 40.7 fb |
|27|     11838 fb|0.66%|0.36%| ±2.1% |   12483 fb|   -6.2% | 129 fb |

</table>
</tr>

Theoretical uncertainties of integrated cross sections originating from unknown higher-order EW effects can be estimated by  &Delta;EW = max{0.5%, &delta;<sup>2</sup><sub>EW</sub>, &sigma;<sub>&gamma;</sub>/&sigma;<sub>VBF</sub>}

---++ !VH production

<li>Cross sections are calculated at NNLO QCD and NLO EW with the program HAWK. The reference results include the photon contribution &sigma;<sub>&gamma;</sub> where appropriate</li>

* WH production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;<sub>WH</sub>  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|1.358 pb|0.51%|0.51%| ±1.35% |
|14|1.498 pb|0.51%|0.51%| ±1.35% |
|27|       3.397 pb|0.29%|0.72%| ±1.37% |

</table>
</tr>

* W<up>+</up>H production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;<sub>W<sup>+</sup>H</sub>  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.831 pb|0.74%|0.73%| ±1.79% |
|14|0.913 pb|0.64%|0.76%| ±1.78% |
|27|       1.995 pb|0.43%|1.04%| ±1.84% |

</table>
</tr>

* W<up>-</up>H production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;<sub>W<sup>-</sup>H</sub>  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.527 pb|0.59%|0.63%| ±2.03% |
|14|0.585 pb|0.55%|0.68%| ±1.98% |
|27|       1.402 pb|0.36%|0.93%| ±2.03% |

</table>
</tr>

* l<sup>+</sup>&nu;H production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma; |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> | &sigma;<sub>&gamma;</sub> |
|13|0.094 pb|0.71%|0.70%| ±1.72% | 4.1 10<sup>-3</sup> |
|14|0.104 pb|0.61%|0.73%| ±1.70% | 4.7 10<sup>-3</sup> |
|27|       0.232 pb|0.40%|0.97%| ±1.72% | 1.5 10<sup>-2</sup> |

</table>
</tr>

* l<sup>-</sup><SPAN STYLE="text-decoration:overline">&nu;</SPAN>H production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma; |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> | &sigma;<sub>&gamma;</sub> |
|13|0.0598 pb|0.57%|0.60%| ±1.94% | 2.6 10<sup>-3</sup> |
|14|0.0666 pb|0.52%|0.64%| ±1.89% | 3.1 10<sup>-3</sup> |
|27|       0.1628 pb|0.34%|0.87%| ±1.90% | 1.1 10<sup>-2</sup> |

</table>
</tr>

* ZH production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.880 pb|3.50%|2.68%| ±1.65% |
|14|0.981 pb|3.61%|2.94%| ±1.90% |
|27|       2.463 pb|5.42%|4.00%| ±2.24% |

</table>
</tr>

* ZH production (without loop induced contribution)

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.758 pb|0.49%|0.61%| ±1.78% |
|14|0.836 pb|0.51%|0.62%| ±1.82% |
|27|       1.937 pb|0.56%|0.74%| ±2.37% |

</table>
</tr>

* ZH production (loop induced contribution)

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.123 pb|24.9%|18.8%| ±4.37% |
|14|0.145 pb|24.3%|19.6%| ±7.47% |
|27|       0.526 pb|25.3%|18.5%| ±5.85% |

</table>
</tr>

The loop induced contribution is evaluated at LO and rescaled with the NLO corrections obtained in the m<sub>t</sub> &#8594; &#8734; limit, and supplemented by the soft-gluon effects at NLL

* l<SPAN STYLE="text-decoration:overline">l</SPAN>H

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> | &sigma;<sub>&gamma;</sub>  |
|13|2.97 10<sup>-2</sup> pb|3.49%|2.67%| ±1.64% | 1.4 10<sup>-4</sup> |
|14|3.31 10<sup>-2</sup> pb|3.59%|2.92%| ±1.89% | 1.6 10<sup>-4</sup> |
|27|       8.32 10<sup>-2</sup> pb|5.39%|3.97%| ±1.85% | 5.4 10<sup>-4</sup> |

</table>
</tr>

* &nu;<SPAN STYLE="text-decoration:overline">&nu;</SPAN>H production

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|13|0.177 pb|3.50%|2.68%| ±1.65% |
|14|0.197 pb|3.59%|2.92%| ±1.89% |
|27|       0.496 pb|5.41%|3.99%| ±2.24% |

</table>
</tr>

---++ !t<SPAN STYLE="text-decoration:overline">t</SPAN>H and tH production

<li>Cross sections for t<SPAN STYLE="text-decoration:overline">t</SPAN>H are calculated at NLO QCD and NLO EW while for <SPAN STYLE="text-decoration:overline">t</SPAN>H they are at NLO QCD</li>

* t<SPAN STYLE="text-decoration:overline">t</SPAN>H

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>&alpha;<sub>s</sub></sub> | &Delta;<sub>PDF</sub> |&Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|14|      612.8 fb|6.0%|9.2%| ±1.9% | ±2.9% | ±3.5% |
|27|       2860  fb|7.8%|9.0%| ±1.8% | ±2.1% | ±2.8% |

</table>
</tr>

* tH+ <SPAN STYLE="text-decoration:overline">t</SPAN>H

<table>
<tr>
|  &#8730;s (!TeV)  |  &sigma;  |  +&delta;(scale)   |  -&delta;(scale)   | &Delta;<sub>&alpha;<sub>s</sub></sub> | &Delta;<sub>PDF</sub> |&Delta;<sub>PDF+&alpha;<sub>s</sub></sub> |
|14|      90.12 fb|6.4%|14.7%| ±1.2% | ±3.4% | ±3.6% |
|27|      417.9 fb|5.0%|12.5%| ±1.3% | ±2.6% | ±2.9% |

</table>
</tr>
Topic revision: r4 - 2019-02-20 - MassimilianoGrazzini
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