| Article | |
| Report number | arXiv:1707.06998 ; DO-TH-17-10 ; OUTP-17-07P ; CERN-TH-2017-157 |
| Title | From quarks to nucleons in dark matter direct detection |
| Related title | From quarks to nucleons in dark matter direct detection |
| Author(s) | Bishara, Fady (Oxford U., Theor. Phys.) ; Brod, Joachim (Tech. U., Dortmund (main)) ; Grinstein, Benjamin (UC, San Diego) ; Zupan, Jure (CERN ; Cincinnati U.) |
| Publication | 2017-11-10 |
| Imprint | 2017-07-21 |
| Number of pages | 46 |
| Note | 47 pages, 8 figures. Improved discussion, corrected typographical errors, updated references |
| In: | JHEP 11 (2017) 059 |
| DOI | 10.1007/JHEP11(2017)059 |
| Subject category | astro-ph.CO ; Astrophysics and Astronomy ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | We provide expressions for the nonperturbative matching of the effective field theory describing dark matter interactions with quarks and gluons to the effective theory of nonrelativistic dark matter interacting with nonrelativistic nucleons. We give the leading and subleading order expressions in chiral counting. In general, a single partonic operator already matches onto several nonrelativistic operators at leading order in chiral counting. Thus, keeping only one operator at the time in the nonrelativistic effective theory does not properly describe the scattering in direct detection. Moreover, the matching of the axial--axial partonic level operator, as well as the matching of the operators coupling DM to the QCD anomaly term, naively include momentum suppressed terms. However, these are still of leading chiral order due to pion poles and can be numerically important. We illustrate the impact of these effects with several examples. |
| Copyright/License | arXiv nonexclusive-distrib. 1.0 |
Corresponding record in: Inspire
Record created 2017-08-23, last modified 2021-11-13