Abstract
In the scenario that dark matter (DM) is a weakly interacting massive particle, there are many possibilities of the interactions with the Standard Model (SM) particles to achieve the relic density of DM. In this paper, we consider a simple DM model where the DM candidate is a complex scalar boson. The model contains a new complex gauge singlet scalar boson and a new fermion whose gauge charge is the same as the right-handed down-type quark. We dub the new fermion the bottom partner. These new particles have Yukawa interactions with the SM down-type quarks. The DM candidate interacts with the SM particles through the Yukawa interactions. The Yukawa interactions are not only relevant to the annihilation process of the DM but also contribute to the flavor physics, such as the ΔF = 2 processes. In addition, the flavor alignment of the Yukawa couplings is related to the decay modes of the bottom partner, and thus we can find the explicit correlations among the physical observables in DM physics, flavor physics, and the signals at the LHC. We survey the ΔF = 2 processes based on the numerical analyses of the thermal relic density, the direct detection of the DM, and the current LHC bounds. We investigate the perturbative bound on the Yukawa coupling as well. A Study of a fermionic DM model with extra scalar quarks is also given for comparison.
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WMAP collaboration, G. Hinshaw et al., Nine-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: cosmological parameter results, Astrophys. J. Suppl. 208 (2013) 19 [arXiv:1212.5226] [INSPIRE].
Planck collaboration, P.A.R. Ade et al., Planck 2015 results. XIII. Cosmological parameters, Astron. Astrophys. 594 (2016) A13 [arXiv:1502.01589] [INSPIRE].
M. Cirelli, N. Fornengo and A. Strumia, Minimal dark matter, Nucl. Phys. B 753 (2006) 178 [hep-ph/0512090] [INSPIRE].
P. Fileviez Perez and M.B. Wise, Baryon asymmetry and dark matter through the vector-like portal, JHEP 05 (2013) 094 [arXiv:1303.1452] [INSPIRE].
S. Chang, R. Edezhath, J. Hutchinson and M. Luty, Effective WIMPs, Phys. Rev. D 89 (2014) 015011 [arXiv:1307.8120] [INSPIRE].
Y. Bai and J. Berger, Fermion portal dark matter, JHEP 11 (2013) 171 [arXiv:1308.0612] [INSPIRE].
C. Kilic, M.D. Klimek and J.-H. Yu, Signatures of top flavored dark matter, Phys. Rev. D 91 (2015) 054036 [arXiv:1501.02202] [INSPIRE].
F. Giacchino, A. Ibarra, L. Lopez Honorez, M.H.G. Tytgat and S. Wild, Signatures from scalar dark matter with a vector-like quark mediator, JCAP 02 (2016) 002 [arXiv:1511.04452] [INSPIRE].
J. Kawamura and Y. Omura, Diphoton excess at 750 GeV and LHC constraints in models with vectorlike particles, Phys. Rev. D 93 (2016) 115011 [arXiv:1601.07396] [INSPIRE].
S. Baek, P. Ko and P. Wu, Top-philic scalar dark matter with a vector-like fermionic top partner, JHEP 10 (2016) 117 [arXiv:1606.00072] [INSPIRE].
AMS collaboration, M. Aguilar et al., Antiproton flux, antiproton-to-proton flux ratio and properties of elementary particle fluxes in primary cosmic rays measured with the Alpha Magnetic Spectrometer on the International Space Station, Phys. Rev. Lett. 117 (2016) 091103 [INSPIRE].
A. Cuoco, M. Krämer and M. Korsmeier, Novel dark matter constraints from antiprotons in the light of AMS-02, arXiv:1610.03071 [INSPIRE].
M.-Y. Cui, Q. Yuan, Y.-L.S. Tsai and Y.-Z. Fan, A possible dark matter annihilation signal in the AMS-02 antiproton data, arXiv:1610.03840 [INSPIRE].
LUX collaboration, D.S. Akerib et al., Improved limits on scattering of Weakly Interacting Massive Particles from reanalysis of 2013 LUX data, Phys. Rev. Lett. 116 (2016) 161301 [arXiv:1512.03506] [INSPIRE].
LUX collaboration, D.S. Akerib et al., Results from a search for dark matter in the complete LUX exposure, Phys. Rev. Lett. 118 (2017) 021303 [arXiv:1608.07648] [INSPIRE].
PandaX-II collaboration, A. Tan et al., Dark matter results from first 98.7 days of data from the PandaX-II experiment, Phys. Rev. Lett. 117 (2016) 121303 [arXiv:1607.07400] [INSPIRE].
P. Ko, Y. Omura and C. Yu, Diphoton excess at 750 GeV in leptophobic U(1)′ model inspired by E 6 GUT, JHEP 04 (2016) 098 [arXiv:1601.00586] [INSPIRE].
P. Agrawal, S. Blanchet, Z. Chacko and C. Kilic, Flavored dark matter and its implications for direct detection and colliders, Phys. Rev. D 86 (2012) 055002 [arXiv:1109.3516] [INSPIRE].
P. Agrawal, M. Blanke and K. Gemmler, Flavored dark matter beyond minimal flavor violation, JHEP 10 (2014) 72 [arXiv:1405.6709] [INSPIRE].
B. Bhattacharya, D. London, J.M. Cline, A. Datta and G. Dupuis, Quark-flavored scalar dark matter, Phys. Rev. D 92 (2015) 115012 [arXiv:1509.04271] [INSPIRE].
C. Degrande, C. Duhr, B. Fuks, D. Grellscheid, O. Mattelaer and T. Reiter, UFO — The Universal FeynRules Output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0 — A complete toolbox for tree-level phenomenology, Comput. Phys. Commun. 185 (2014) 2250 [arXiv:1310.1921] [INSPIRE].
J. Alwall et al., The automated computation of tree-level and next-to-leading order differential cross sections and their matching to parton shower simulations, JHEP 07 (2014) 079 [arXiv:1405.0301] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
DELPHES 3 collaboration, J. de Favereau et al., DELPHES 3, a modular framework for fast simulation of a generic collider experiment, JHEP 02 (2014) 057 [arXiv:1307.6346] [INSPIRE].
F. Caravaglios, M.L. Mangano, M. Moretti and R. Pittau, A new approach to multijet calculations in hadron collisions, Nucl. Phys. B 539 (1999) 215 [hep-ph/9807570] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, The anti-k t jet clustering algorithm, JHEP 04 (2008) 063 [arXiv:0802.1189] [INSPIRE].
ATLAS collaboration, Search for bottom squark pair production with the ATLAS detector in proton-proton collisions at \( \sqrt{s}=13 \) TeV, ATLAS-CONF-2015-066 (2015).
G. Bélanger, F. Boudjema, A. Pukhov and A. Semenov, MicrOMEGAs 3: a program for calculating dark matter observables, Comput. Phys. Commun. 185 (2014) 960 [arXiv:1305.0237] [INSPIRE].
Fermi-LAT collaboration, M. Ackermann et al., Searching for dark matter annihilation from Milky Way dwarf spheroidal galaxies with six years of Fermi Large Area Telescope data, Phys. Rev. Lett. 115 (2015) 231301 [arXiv:1503.02641] [INSPIRE].
J. Charles, S. Descotes-Genon, Z. Ligeti, S. Monteil, M. Papucci and K. Trabelsi, Future sensitivity to new physics in B d , B s and K mixings, Phys. Rev. D 89 (2014) 033016 [arXiv:1309.2293] [INSPIRE].
Particle Data Group collaboration, K.A. Olive et al., Review of particle physics, Chin. Phys. C 38 (2014) 090001 [INSPIRE].
J. Laiho, E. Lunghi and R.S. Van de Water, Lattice QCD inputs to the CKM unitarity triangle analysis, Phys. Rev. D 81 (2010) 034503 [arXiv:0910.2928] [INSPIRE].
J. Brod and M. Gorbahn, Next-to-next-to-leading-order charm-quark contribution to the CP-violation parameter ϵ K and ΔM K , Phys. Rev. Lett. 108 (2012) 121801 [arXiv:1108.2036] [INSPIRE].
A.J. Buras, M. Jamin and P.H. Weisz, Leading and next-to-leading QCD corrections to ϵ parameter and B 0 - B 0 mixing in the presence of a heavy top quark, Nucl. Phys. B 347 (1990) 491 [INSPIRE].
J. Brod and M. Gorbahn, ϵ K at next-to-next-to-leading order: the charm-top-quark contribution, Phys. Rev. D 82 (2010) 094026 [arXiv:1007.0684] [INSPIRE].
J. Charles et al., Current status of the Standard Model CKM fit and constraints on ΔF = 2 New Physics, Phys. Rev. D 91 (2015) 073007 [arXiv:1501.05013] [INSPIRE].
S. Descotes-Genon, J. Matias and J. Virto, Understanding the B → K ∗ μ + μ − anomaly, Phys. Rev. D 88 (2013) 074002 [arXiv:1307.5683] [INSPIRE].
M. Blanke and A.J. Buras, Universal unitarity triangle 2016 and the tension between ΔM s,d and ε K in CMFV models, Eur. Phys. J. C 76 (2016) 197 [arXiv:1602.04020] [INSPIRE].
J. Kawamura, S. Okawa and Y. Omura, work in progress.
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Abe, T., Kawamura, J., Okawa, S. et al. Dark matter physics, flavor physics and LHC constraints in the dark matter model with a bottom partner. J. High Energ. Phys. 2017, 58 (2017). https://doi.org/10.1007/JHEP03(2017)058
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DOI: https://doi.org/10.1007/JHEP03(2017)058