Abstract
New physics can be light if it is hidden, coupling very weakly to the Standard Model. In this work we investigate the discovery prospects of Abelian hidden sectors in lower-energy fixed-target and high-precision experiments. We focus on a minimal supersymmetric realization consisting of an Abelian vector multiplet, coupled to hypercharge by kinetic mixing, and a pair of chiral Higgs multiplets. This simple theory can give rise to a broad range of experimental signals, including both commonly-studied patterns of hidden vector decay as well as new and distinctive hidden sector cascades. We find limits from the production of hidden states other than the vector itself. In particular, we show that if the hidden Abelian symmetry is higgsed, and the corresponding hidden Higgs boson has visible decays, it severely restricts the ability of the hidden sector to explain the anomalous muon magnetic moment.
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R. Essig et al., Working group report: new light weakly coupled particles, arXiv:1311.0029 [INSPIRE].
J. Jaeckel and A. Ringwald, The low-energy frontier of particle physics, Ann. Rev. Nucl. Part. Sci. 60 (2010) 405 [arXiv:1002.0329] [INSPIRE].
J.L. Hewett et al., Fundamental physics at the intensity frontier, arXiv:1205.2671 [INSPIRE].
B. Holdom, Two U(1)’s and epsilon charge shifts, Phys. Lett. B 166 (1986) 196 [INSPIRE].
R. Foot and X.-G. He, Comment on ZZ′ mixing in extended gauge theories, Phys. Lett. B 267 (1991) 509 [INSPIRE].
S. Davidson, S. Hannestad and G. Raffelt, Updated bounds on millicharged particles, JHEP 05 (2000) 003 [hep-ph/0001179] [INSPIRE].
P. Arias et al., WISPy cold dark matter, JCAP 06 (2012) 013 [arXiv:1201.5902] [INSPIRE].
N. Arkani-Hamed, D.P. Finkbeiner, T.R. Slatyer and N. Weiner, A theory of dark matter, Phys. Rev. D 79 (2009) 015014 [arXiv:0810.0713] [INSPIRE].
N. Arkani-Hamed and N. Weiner, LHC signals for a superunified theory of dark matter, JHEP 12 (2008) 104 [arXiv:0810.0714] [INSPIRE].
C. Cheung, J.T. Ruderman, L.-T. Wang and I. Yavin, Kinetic mixing as the origin of light dark scales, Phys. Rev. D 80 (2009) 035008 [arXiv:0902.3246] [INSPIRE].
A. Katz and R. Sundrum, Breaking the dark force, JHEP 06 (2009) 003 [arXiv:0902.3271] [INSPIRE].
D.E. Morrissey, D. Poland and K.M. Zurek, Abelian hidden sectors at a GeV, JHEP 07 (2009) 050 [arXiv:0904.2567] [INSPIRE].
M. Goodsell, J. Jaeckel, J. Redondo and A. Ringwald, Naturally light hidden photons in LARGE volume string compactifications, JHEP 11 (2009) 027 [arXiv:0909.0515] [INSPIRE].
R. Essig, J. Kaplan, P. Schuster and N. Toro, On the origin of light dark matter species, submitted to Phys. Rev. D (2010), arXiv:1004.0691 [INSPIRE].
S. Andreas, M.D. Goodsell and A. Ringwald, Dark matter and dark forces from a supersymmetric hidden sector, Phys. Rev. D 87 (2013) 025007 [arXiv:1109.2869] [INSPIRE].
M. Pospelov, Secluded U(1) below the weak scale, Phys. Rev. D 80 (2009) 095002 [arXiv:0811.1030] [INSPIRE].
B. Batell, M. Pospelov and A. Ritz, Probing a secluded U(1) at B-factories, Phys. Rev. D 79 (2009) 115008 [arXiv:0903.0363] [INSPIRE].
M. Reece and L.-T. Wang, Searching for the light dark gauge boson in GeV-scale experiments, JHEP 07 (2009) 051 [arXiv:0904.1743] [INSPIRE].
J.D. Bjorken, R. Essig, P. Schuster and N. Toro, New fixed-target experiments to search for dark gauge forces, Phys. Rev. D 80 (2009) 075018 [arXiv:0906.0580] [INSPIRE].
B. Batell, M. Pospelov and A. Ritz, Exploring portals to a hidden sector through fixed targets, Phys. Rev. D 80 (2009) 095024 [arXiv:0906.5614] [INSPIRE].
P. deNiverville, M. Pospelov and A. Ritz, Observing a light dark matter beam with neutrino experiments, Phys. Rev. D 84 (2011) 075020 [arXiv:1107.4580] [INSPIRE].
E. Izaguirre, G. Krnjaic, P. Schuster and N. Toro, New electron beam-dump experiments to search for MeV to few-GeV dark matter, Phys. Rev. D 88 (2013) 114015 [arXiv:1307.6554] [INSPIRE].
M.D. Diamond and P. Schuster, Searching for light dark matter with the SLAC millicharge experiment, Phys. Rev. Lett. 111 (2013) 221803 [arXiv:1307.6861] [INSPIRE].
R. Essig, J. Mardon, M. Papucci, T. Volansky and Y.-M. Zhong, Constraining light dark matter with low-energy e + e − colliders, JHEP 11 (2013) 167 [arXiv:1309.5084] [INSPIRE].
P. Schuster, N. Toro and I. Yavin, Terrestrial and solar limits on long-lived particles in a dark sector, Phys. Rev. D 81 (2010) 016002 [arXiv:0910.1602] [INSPIRE].
Y.F. Chan, M. Low, D.E. Morrissey and A.P. Spray, LHC signatures of a minimal supersymmetric hidden valley, JHEP 05 (2012) 155 [arXiv:1112.2705] [INSPIRE].
S.P. Martin, A supersymmetry primer, hep-ph/9709356 [INSPIRE].
W.-F. Chang, J.N. Ng and J.M.S. Wu, A very narrow shadow extra Z-boson at colliders, Phys. Rev. D 74 (2006) 095005 [Erratum ibid. D 79 (2009) 039902] [hep-ph/0608068] [INSPIRE].
E.J. Chun, J.-C. Park and S. Scopel, Dark matter and a new gauge boson through kinetic mixing, JHEP 02 (2011) 100 [arXiv:1011.3300] [INSPIRE].
A. Hook, E. Izaguirre and J.G. Wacker, Model independent bounds on kinetic mixing, Adv. High Energy Phys. 2011 (2011) 859762 [arXiv:1006.0973] [INSPIRE].
Particle Data Group collaboration, J. Beringer et al., Review of particle physics, Phys. Rev. D 86 (2012) 010001 [INSPIRE].
H. Davoudiasl, H.-S. Lee and W.J. Marciano, Dark side of Higgs diphoton decays and muon g − 2, Phys. Rev. D 86 (2012) 095009 [arXiv:1208.2973] [INSPIRE].
G.F. Giudice, P. Paradisi and M. Passera, Testing new physics with the electron g − 2, JHEP 11 (2012) 113 [arXiv:1208.6583] [INSPIRE].
M. Endo, K. Hamaguchi and G. Mishima, Constraints on hidden photon models from electron g − 2 and hydrogen spectroscopy, Phys. Rev. D 86 (2012) 095029 [arXiv:1209.2558] [INSPIRE].
D. Hanneke, S. Fogwell and G. Gabrielse, New measurement of the electron magnetic moment and the fine structure constant, Phys. Rev. Lett. 100 (2008) 120801 [arXiv:0801.1134] [INSPIRE].
T. Aoyama, M. Hayakawa, T. Kinoshita and M. Nio, Tenth-order QED contribution to the electron g − 2 and an improved value of the fine structure constant, Phys. Rev. Lett. 109 (2012) 111807 [arXiv:1205.5368] [INSPIRE].
R. Bouchendira, P. Clade, S. Guellati-Khelifa, F. Nez and F. Biraben, New determination of the fine structure constant and test of the quantum electrodynamics, Phys. Rev. Lett. 106 (2011) 080801 [arXiv:1012.3627] [INSPIRE].
BaBar collaboration, B. Aubert et al., Search for dimuon decays of a light scalar in radiative transitions τ 3S → γA 0, arXiv:0902.2176 [INSPIRE].
BaBar collaboration, B. Aubert et al., Search for dimuon decays of a light scalar boson in radiative transitions \( \varUpsilon \) → γA 0, Phys. Rev. Lett. 103 (2009) 081803 [arXiv:0905.4539] [INSPIRE].
N. Borodatchenkova, D. Choudhury and M. Drees, Probing MeV dark matter at low-energy e + e − colliders, Phys. Rev. Lett. 96 (2006) 141802 [hep-ph/0510147] [INSPIRE].
F. Archilli et al., Search for a vector gauge boson in ϕ meson decays with the KLOE detector, Phys. Lett. B 706 (2012) 251 [arXiv:1110.0411] [INSPIRE].
KLOE-2 collaboration, D. Babusci et al., Limit on the production of a light vector gauge boson in ϕ meson decays with the KLOE detector, Phys. Lett. B 720 (2013) 111 [arXiv:1210.3927] [INSPIRE].
WASA-at-COSY collaboration, P. Adlarson et al., Search for a dark photon in the π 0 → e + e − γ decay, Phys. Lett. B 726 (2013) 187 [arXiv:1304.0671] [INSPIRE].
B. Batell, M. Pospelov and A. Ritz, Multi-lepton signatures of a hidden sector in rare B decays, Phys. Rev. D 83 (2011) 054005 [arXiv:0911.4938] [INSPIRE].
J.D. Clarke, R. Foot and R.R. Volkas, Phenomenology of a very light scalar (100 MeV < m h < 10 GeV) mixing with the SM Higgs, JHEP 02 (2014) 123 [arXiv:1310.8042] [INSPIRE].
Y.G. Aditya, K.J. Healey and A.A. Petrov, Searching for super-WIMPs in leptonic heavy meson decays, Phys. Lett. B 710 (2012) 118 [arXiv:1201.1007] [INSPIRE].
BaBar collaboration, B. Aubert et al., Search for invisible decays of a light scalar in radiative transitions υ 3S → γA 0, arXiv:0808.0017 [INSPIRE].
E787 collaboration, S. Adler et al., Further search for the decay K + → π + νn¯u in the momentum region P < 195 MeV/c, Phys. Rev. D 70 (2004) 037102 [hep-ex/0403034] [INSPIRE].
BNL-E949 collaboration, A.V. Artamonov et al., Study of the decay K + → π + νn¯u in the momentum region 140 < P (π) < 199 MeV/c, Phys. Rev. D 79 (2009) 092004 [arXiv:0903.0030] [INSPIRE].
BaBar collaboration, P. Harrison and H. R. Quinn, The BABAR physics book: physics at an asymmetric B factory, SLAC-R-0504 (1998) [INSPIRE].
R. Essig, P. Schuster and N. Toro, Probing dark forces and light hidden sectors at low-energy e + e − colliders, Phys. Rev. D 80 (2009) 015003 [arXiv:0903.3941] [INSPIRE].
BaBar collaboration, B. Aubert et al., Search for a narrow resonance in e + e − to four lepton final states, arXiv:0908.2821 [INSPIRE].
BaBar collaboration, J.P. Lees et al., Search for low-mass dark-sector Higgs bosons, Phys. Rev. Lett. 108 (2012) 211801 [arXiv:1202.1313] [INSPIRE].
M. Pospelov, A. Ritz and M.B. Voloshin, Secluded WIMP dark matter, Phys. Lett. B 662 (2008) 53 [arXiv:0711.4866] [INSPIRE].
M. Pospelov and A. Ritz, Astrophysical signatures of secluded dark matter, Phys. Lett. B 671 (2009) 391 [arXiv:0810.1502] [INSPIRE].
S. Chang, A. Pierce and N. Weiner, Momentum dependent dark matter scattering, JCAP 01 (2010) 006 [arXiv:0908.3192] [INSPIRE].
P. Cushman et al., Working group report: WIMP dark matter direct detection, arXiv:1310.8327 [INSPIRE].
R. Essig, J. Mardon and T. Volansky, Direct detection of sub-GeV dark matter, Phys. Rev. D 85 (2012) 076007 [arXiv:1108.5383] [INSPIRE].
R. Essig, A. Manalaysay, J. Mardon, P. Sorensen and T. Volansky, First direct detection limits on sub-GeV dark matter from XENON10, Phys. Rev. Lett. 109 (2012) 021301 [arXiv:1206.2644] [INSPIRE].
M. Kawasaki, K. Kohri and T. Moroi, Big-Bang nucleosynthesis and hadronic decay of long-lived massive particles, Phys. Rev. D 71 (2005) 083502 [astro-ph/0408426] [INSPIRE].
K. Jedamzik, Big bang nucleosynthesis constraints on hadronically and electromagnetically decaying relic neutral particles, Phys. Rev. D 74 (2006) 103509 [hep-ph/0604251] [INSPIRE].
W. Hu and J. Silk, Thermalization constraints and spectral distortions for massive unstable relic particles, Phys. Rev. Lett. 70 (1993) 2661 [INSPIRE].
R. Essig, E. Kuflik, S.D. McDermott, T. Volansky and K.M. Zurek, Constraining light dark matter with diffuse X-ray and γ-ray observations, JHEP 11 (2013) 193 [arXiv:1309.4091] [INSPIRE].
M. Pospelov and J. Pradler, Metastable GeV-scale particles as a solution to the cosmological lithium problem, Phys. Rev. D 82 (2010) 103514 [arXiv:1006.4172] [INSPIRE].
J.B. Dent, F. Ferrer and L.M. Krauss, Constraints on light hidden sector gauge bosons from supernova cooling, arXiv:1201.2683 [INSPIRE].
H.K. Dreiner, J.-F. Fortin, C. Hanhart and L. Ubaldi, Supernova constraints on MeV dark sectors from e + e − annihilations, Phys. Rev. D 89 (2014) 105015 [arXiv:1310.3826] [INSPIRE].
S. Andreas, C. Niebuhr and A. Ringwald, New limits on hidden photons from past electron beam dumps, Phys. Rev. D 86 (2012) 095019 [arXiv:1209.6083] [INSPIRE].
A1 collaboration, H. Merkel et al., Search for light gauge bosons of the dark sector at the Mainz microtron, Phys. Rev. Lett. 106 (2011) 251802 [arXiv:1101.4091] [INSPIRE].
APEX collaboration, S. Abrahamyan et al., Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment, Phys. Rev. Lett. 107 (2011) 191804 [arXiv:1108.2750] [INSPIRE].
S. Andreas, Hidden photons in beam dump experiments and in connection with dark matter, Frascati Phys. Ser. 56 (2012) 23 [arXiv:1212.4520] [INSPIRE].
R. Essig, P. Schuster, N. Toro and B. Wojtsekhowski, An electron fixed target experiment to search for a new vector boson A ′ decaying to e + e −, JHEP 02 (2011) 009 [arXiv:1001.2557] [INSPIRE].
M. Freytsis, G. Ovanesyan and J. Thaler, Dark force detection in low energy e-p collisions, JHEP 01 (2010) 111 [arXiv:0909.2862] [INSPIRE].
Heavy Photon Search collaboration, Heavy Photon Search experiment .
P.H. Adrian, The Heavy Photon Search experiment, arXiv:1301.1103 [INSPIRE].
K.J. Kim and Y.-S. Tsai, Improved Weizsacker-Williams method and its application to lepton and W boson pair production, Phys. Rev. D 8 (1973) 3109 [INSPIRE].
T. Beranek and M. Vanderhaeghen, Study of the discovery potential for hidden photon emission at future electron scattering fixed target experiments, arXiv:1311.5104 [INSPIRE].
E.M. Riordan et al., A search for short lived axions in an electron beam dump experiment, Phys. Rev. Lett. 59 (1987) 755 [INSPIRE].
Y.-S. Tsai, Axion bremsstrahlung by an electron beam, Phys. Rev. D 34 (1986) 1326 [INSPIRE].
J.D. Bjorken et al., Search for neutral metastable penetrating particles produced in the SLAC beam dump, Phys. Rev. D 38 (1988) 3375 [INSPIRE].
A. Bross et al., A search for shortlived particles produced in an electron beam dump, Phys. Rev. Lett. 67 (1991) 2942 [INSPIRE].
A. Konaka et al., Search for neutral particles in electron beam dump experiment, Phys. Rev. Lett. 57 (1986) 659 [INSPIRE].
M. Davier and H. Nguyen Ngoc, An unambiguous search for a light Higgs boson, Phys. Lett. B 229 (1989) 150 [INSPIRE].
S.N. Gninenko, Search for MeV dark photons in a light-shining-through-walls experiment at CERN, Phys. Rev. D 89 (2014) 075008 [arXiv:1308.6521] [INSPIRE].
S. Andreas et al., Proposal for an experiment to search for light dark matter at the SPS, arXiv:1312.3309 [INSPIRE].
B.C. Odom, D. Hanneke, B. D’Urso and G. Gabrielse, New measurement of the electron magnetic moment using a one-electron quantum cyclotron, Phys. Rev. Lett. 97 (2006) 030801 [Erratum ibid. 99 (2007) 039902] [INSPIRE].
S.N. Gninenko, Constraints on sub-GeV hidden sector gauge bosons from a search for heavy neutrino decays, Phys. Lett. B 713 (2012) 244 [arXiv:1204.3583] [INSPIRE].
P. deNiverville, D. McKeen and A. Ritz, Signatures of sub-GeV dark matter beams at neutrino experiments, Phys. Rev. D 86 (2012) 035022 [arXiv:1205.3499] [INSPIRE].
J. Blümlein and J. Brunner, New exclusion limits on dark gauge forces from proton bremsstrahlung in beam-dump data, Phys. Lett. B 731 (2014) 320 [arXiv:1311.3870] [INSPIRE].
J. Blumlein and J. Brunner, New exclusion limits for dark gauge forces from beam-dump data, Phys. Lett. B 701 (2011) 155 [arXiv:1104.2747] [INSPIRE].
S.N. Gninenko, Stringent limits on the π 0 → γX, X → e + e − decay from neutrino experiments and constraints on new light gauge bosons, Phys. Rev. D 85 (2012) 055027 [arXiv:1112.5438] [INSPIRE].
H.-L. Lai et al., New parton distributions for collider physics, Phys. Rev. D 82 (2010) 074024 [arXiv:1007.2241] [INSPIRE].
R. Burman and E. Smith, Parametrization of pion production and reaction cross-sections at LAMPF energies, LA-11502-MS (1989) [INSPIRE].
MiniBooNE collaboration, A.A. Aguilar-Arevalo et al., The neutrino flux prediction at MiniBooNE, Phys. Rev. D 79 (2009) 072002 [arXiv:0806.1449] [INSPIRE].
G. Tel-Zur, Electron pair production in p-Be and p-Au collisions at 450 GeV/c (2014).
M. Bourquin and J.-M. Gaillard, Vector meson and ψ contributions to single lepton spectra, Phys. Lett. B 59 (1975) 191 [INSPIRE].
M. Bourquin and J.-M. Gaillard, A simple phenomenological description of hadron production, Nucl. Phys. B 114 (1976) 334 [INSPIRE].
A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0 — A complete toolbox for tree-level phenomenology, arXiv:1310.1921 [INSPIRE].
C. Duhr and B. Fuks, A superspace module for the FeynRules package, Comput. Phys. Commun. 182 (2011) 2404 [arXiv:1102.4191] [INSPIRE].
C. Degrande et al., UFO — The universal FeynRules output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: going beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
CHARM collaboration, F. Bergsma et al., Search for axion like particle production in 400 GeV proton-copper interactions, Phys. Lett. B 157 (1985) 458 [INSPIRE].
CHARM collaboration, F. Bergsma et al., A search for decays of heavy neutrinos in the mass range 0.5 GeV to 2.8 GeV, Phys. Lett. B 166 (1986) 473 [INSPIRE].
MINOS Collaboration, I. Ambats et al., The MINOS detectors technical design report, NUMI-L-337 (1998) [INSPIRE].
MINOS collaboration, P. Adamson et al., Measurement of neutrino and antineutrino oscillations using beam and atmospheric data in MINOS, Phys. Rev. Lett. 110 (2013) 251801 [arXiv:1304.6335] [INSPIRE].
J. Blumlein et al., Limits on neutral light scalar and pseudoscalar particles in a proton beam dump experiment, Z. Phys. C 51 (1991) 341 [INSPIRE].
J. Blumlein et al., Limits on the mass of light (pseudo)scalar particles from Bethe-Heitler e + e − and μ + μ − pair production in a proton-iron beam dump experiment, Int. J. Mod. Phys. A 7 (1992) 3835[INSPIRE].
K. Abe et al., Measurements of the T2K neutrino beam properties using the INGRID on-axis near detector, Nucl. Instrum. Meth. A 694 (2012) 211 [arXiv:1111.3119] [INSPIRE].
LSND collaboration, A. Aguilar-Arevalo et al., Evidence for neutrino oscillations from the observation of anti-neutrino(electron) appearance in a anti-neutrino(muon) beam, Phys. Rev. D 64 (2001) 112007 [hep-ex/0104049] [INSPIRE].
LSND collaboration, L.B. Auerbach et al., Measurement of electron-neutrino-electron elastic scattering, Phys. Rev. D 63 (2001) 112001 [hep-ex/0101039] [INSPIRE].
S. Teis, W. Cassing, M. Effenberger, A. Hombach, U. Mosel et al., Pion production in heavy ion collisions at SIS energies, Z. Phys. A 356 (1997) 421 [nucl-th/9609009] [INSPIRE].
V. Flaminio, W. Moorhead, D. Morrison and N. Rivoire, Compilation of cross-sections. 3. p and anti-p induced reactions, CERN-HERA-73-1 (1973) [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, A brief introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
M. Aguilar-Benitez et al., Inclusive particle production in 400 GeV/c pp interactions, Z. Phys. C 50 (1991) 405.
G. Agakishiev et al., Neutral meson production in p Be and p Au collisions at 450 GeV beam energy, Eur. Phys. J. C 4 (1998) 249 [INSPIRE].
NA61/SHINE collaboration, N. Abgrall et al., Measurements of cross sections and charged pion spectra in proton-carbon interactions at 31 GeV/c, Phys. Rev. C 84 (2011) 034604 [arXiv:1102.0983] [INSPIRE].
MINOS collaboration, P. Adamson et al., Search for sterile neutrino mixing in the MINOS long baseline experiment, Phys. Rev. D 81 (2010) 052004 [arXiv:1001.0336] [INSPIRE].
French-Soviet collaboration, M. Boratav et al., Gamma production and multiplicity correlations between neutral and charged pions in pp interactions at 69 GeV/c, Nucl. Phys. B 111 (1976) 529 [INSPIRE].
France-Soviet Union collaboration, H. Blumenfeld et al., Photon production in 69 GeV pp interactions, Phys. Lett. B 45 (1973) 525 [INSPIRE].
T2K collaboration, K. Abe et al., The T2K experiment, Nucl. Instrum. Meth. A 659 (2011) 106 [arXiv:1106.1238] [INSPIRE].
NOMAD collaboration, P. Astier et al., Search for heavy neutrinos mixing with τ neutrinos, Phys. Lett. B 506 (2001) 27 [hep-ex/0101041] [INSPIRE].
G. Bernardi et al., Search for neutrino decay, Phys. Lett. B 166 (1986) 479 [INSPIRE].
G. Bernardi et al., Further limits on heavy neutrino couplings, Phys. Lett. B 203 (1988) 332 [INSPIRE].
MiniBooNE collaboration, A.A. Aguilar-Arevalo et al., The MiniBooNE detector, Nucl. Instrum. Meth. A 599 (2009) 28 [arXiv:0806.4201] [INSPIRE].
S. Assylbekov et al., The T2K ND280 off-axis Pi-Zero detector, Nucl. Instrum. Meth. A 686 (2012) 48 [arXiv:1111.5030] [INSPIRE].
A.S. Kronfeld et al., Project X: physics opportunities, arXiv:1306.5009 [INSPIRE].
S. Holmes, S. Nagaitsev and R. Tschirhart, Project X: a flexible high power proton facility, arXiv:1305.3809 [INSPIRE].
S.J. Brodsky, F. Fleuret, C. Hadjidakis and J.P. Lansberg, Physics opportunities of a fixed-target experiment using the LHC beams, Phys. Rept. 522 (2013) 239 [arXiv:1202.6585] [INSPIRE].
J.P. Lansberg et al., A Fixed-Target ExpeRiment at the LHC (AFTER@LHC): luminosities, target polarisation and a selection of physics studies, PoS(QNP2012)049 [arXiv:1207.3507] [INSPIRE].
M.J. Strassler, Possible effects of a hidden valley on supersymmetric phenomenology, hep-ph/0607160 [INSPIRE].
M. Baumgart, C. Cheung, J.T. Ruderman, L.-T. Wang and I. Yavin, Non-abelian dark sectors and their collider signatures, JHEP 04 (2009) 014 [arXiv:0901.0283] [INSPIRE].
C. Cheung, J.T. Ruderman, L.-T. Wang and I. Yavin, Lepton jets in (supersymmetric) electroweak processes, JHEP 04 (2010) 116 [arXiv:0909.0290] [INSPIRE].
T. Beranek, H. Merkel and M. Vanderhaeghen, Theoretical framework to analyze searches for hidden light gauge bosons in electron scattering fixed target experiments, Phys. Rev. D 88 (2013) 015032 [arXiv:1303.2540] [INSPIRE].
J.R. Andersen, M. Rauch and M. Spannowsky, Dark sector spectroscopy at the ILC, arXiv:1308.4588 [INSPIRE].
A. Kumar, D.E. Morrissey and A. Spray, Kinetically-enhanced anomaly mediation, JHEP 12 (2011) 013 [arXiv:1109.1565] [INSPIRE].
J.F. Donoghue, J. Gasser and H. Leutwyler, The decay of a light Higgs boson, Nucl. Phys. B 343 (1990) 341 [INSPIRE].
F. Bezrukov and D. Gorbunov, Light inflaton hunter’s guide, JHEP 05 (2010) 010 [arXiv:0912.0390] [INSPIRE].
F. Bezrukov and D. Gorbunov, Light inflaton after LHC8 and WMAP9 results, JHEP 07 (2013) 140 [arXiv:1303.4395] [INSPIRE].
Y.-S. Tsai, Pair production and bremsstrahlung of charged leptons, Rev. Mod. Phys. 46 (1974) 815 [Erratum ibid. 49 (1977) 521-423] [INSPIRE].
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Morrissey, D.E., Spray, A.P. New limits on light hidden sectors from fixed-target experiments. J. High Energ. Phys. 2014, 83 (2014). https://doi.org/10.1007/JHEP06(2014)083
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DOI: https://doi.org/10.1007/JHEP06(2014)083