Unitarity bounds on dark matter effective interactions at LHC
Tóm tắt
The perturbative unitarity bound is studied in the monojet process at LHC. The production of the dark matter is described by the low-energy effective theory. The analysis of the dark matter signal is not validated, if the unitarity condition is violated. It is shown that the current LHC analysis with the effective theory breaks down, at least, when the dark matter is heavier than $ \mathcal{O}(100) $ GeV. Future prospects for $ \sqrt{s} $ = 14 TeV are also discussed. The result is independent of physics in higher energy scales.
Tài liệu tham khảo
ATLAS collaboration, Search for New Phenomena in Monojet plus Missing Transverse Momentum Final States using 10fb-1 of pp Collisions at sqrts = 8 TeV with the ATLAS detector at the LHC,
ATLAS-CONF-2012-147
.
CMS Collaboration, Search for new physics in monojet events in pp collisions at
$ \sqrt{s} $
= 8 TeV,
CMS-PAS-EXO-12-048
.
citation_journal_title=JHEP; citation_title=Maverick dark matter at colliders; citation_author=M Beltrán, D Hooper, EW Kolb, ZAC Krusberg, TMP Tait; citation_volume=09; citation_publication_date=2010; citation_pages=037; citation_doi=10.1007/JHEP09(2010)037; citation_id=CR3
citation_journal_title=JHEP; citation_title=The Tevatron at the Frontier of Dark Matter Direct Detection; citation_author=Y Bai, PJ Fox, R Harnik; citation_volume=12; citation_publication_date=2010; citation_pages=048; citation_doi=10.1007/JHEP12(2010)048; citation_id=CR4
citation_journal_title=Phys. Rev.; citation_title=Constraints on Dark Matter from Colliders; citation_author=J Goodman, M Ibe, A Rajaraman, W Shepherd, TMP Tait; citation_volume=D 82; citation_publication_date=2010; citation_pages=116010; citation_doi=10.1103/PhysRevD.82.116010; citation_id=CR5
citation_journal_title=Phys. Rev.; citation_title=Unitarity and Monojet Bounds on Models for DAMA, CoGeNT and CRESST-II; citation_author=IM Shoemaker, L Vecchi; citation_volume=D 86; citation_publication_date=2012; citation_pages=015023; citation_doi=10.1103/PhysRevD.86.015023; citation_id=CR6
citation_journal_title=Phys. Lett.; citation_title=On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC; citation_author=G Busoni, A Simone, E Morgante, A Riotto; citation_volume=B 728; citation_publication_date=2014; citation_pages=412; citation_doi=10.1016/j.physletb.2013.11.069; citation_id=CR7
G. Busoni, A. De Simone, J. Gramling, E. Morgante and A. Riotto, On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC, Part II: Complete Analysis for the s-channel,
arXiv:1402.1275
[
INSPIRE
].
citation_journal_title=JHEP; citation_title=Beyond Effective Field Theory for Dark Matter Searches at the LHC; citation_author=O Buchmueller, MJ Dolan, C McCabe; citation_volume=01; citation_publication_date=2014; citation_pages=025; citation_doi=10.1007/JHEP01(2014)025; citation_id=CR9
citation_journal_title=Annals Phys.; citation_title=On the general theory of collisions for particles with spin; citation_author=M Jacob, GC Wick; citation_volume=7; citation_publication_date=1959; citation_pages=404; citation_doi=10.1016/0003-4916(59)90051-X; citation_id=CR10
citation_journal_title=Comput. Phys. Commun.; citation_title=FeynRules 2.0 - A complete toolbox for tree-level phenomenology; citation_author=A Alloul, ND Christensen, C Degrande, C Duhr, B Fuks; citation_volume=185; citation_publication_date=2014; citation_pages=2250; citation_doi=10.1016/j.cpc.2014.04.012; citation_id=CR11
citation_journal_title=JHEP; citation_title=MadGraph 5: Going Beyond; citation_author=J Alwall, M Herquet, F Maltoni, O Mattelaer, T Stelzer; citation_volume=06; citation_publication_date=2011; citation_pages=128; citation_doi=10.1007/JHEP06(2011)128; citation_id=CR12
citation_journal_title=JHEP; citation_title=New generation of parton distributions with uncertainties from global QCD analysis; citation_author=J Pumplin, DR Stump, J Huston, HL Lai, PM Nadolsky; citation_volume=07; citation_publication_date=2002; citation_pages=012; citation_doi=10.1088/1126-6708/2002/07/012; citation_id=CR13
citation_journal_title=JHEP; citation_title=DELPHES 3, A modular framework for fast simulation of a generic collider experiment; citation_author=J Favereau; citation_volume=02; citation_publication_date=2014; citation_pages=057; citation_doi=10.1007/JHEP02(2014)057; citation_id=CR14
citation_journal_title=JHEP; citation_title=PYTHIA 6.4 Physics and Manual; citation_author=T Sjöstrand, S Mrenna, PZ Skands; citation_volume=05; citation_publication_date=2006; citation_pages=026; citation_doi=10.1088/1126-6708/2006/05/026; citation_id=CR15
H.E. Haber, Spin formalism and applications to new physics searches,
hep-ph/9405376
[
INSPIRE
].