# Journal of High Energy Physics

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-27

^{222}Rn activity in the NEXT-White detector during the so-called Run-II period with

^{136}Xe-depleted xenon is discussed in detail, together with its implications for double beta decay searches in NEXT. The activity is measured through the alpha production rate induced in the fiducial volume by

^{222}Rn and its alpha-emitting progeny. The specific activity is measured...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-14

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-25

_{H}and a 126 ¯ H $$ {\overline{126}}_H $$ of Higgs fields can lead to a predictive and consistent scenario for fermion masses and mixings, including the neutrino sector. However, when coupled minimally to a symmetry breaking sector that includes a 210

_{H}and a 126

_{H}, these models lead either to an unacceptably...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-27

*AdS*

_{d+1}are holographically dual to an entangled conformal field theory that lives on two boundaries with geometry ℝ ×

*H*

_{d−1}. For AdS

_{3}, the holographic duality is especially tractable, allowing quantum-gravitational aspects of Rindler horizons to be probed. We recover the thermodynamics...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-39

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-55

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-25

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-34

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-22

*T*

_{2}/

*Z*

_{2}

^{3}and supplemented by a

*Z*

_{6}×

*Z*

_{3}discrete symmetry. The orbifold boundary conditions generate all the desired SU(3) breaking vacuum alignments, including the (0, 1, −1) and (1, 3, −1) alignments of the Littlest Seesaw model for atmospheric and solar neutrino mixing,...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-24

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-32

*Z*

_{2}symmetry that extends the weak interaction, SU(2)

_{L}→ SU(2)

_{L}×SU(2)

^{′}, and the Higgs sector,

*H*(2) →

*H*(2

*,*1) +

*H*

^{′}(1

*,*2), yields a Standard Model quartic coupling that vanishes at scale

*v*

^{′}= 〈

*H*

^{′}〉 ≫ 〈

*H*〉. Near

*v*

^{′}, theories either have a “prime” sector, or possess “Left-Right” (LR) symmetry with SU(2)

^{′}= SU(2)

_{R}. If the

*Z*

_{2}symmetry incorporates spacetime parity, these theories can solve the...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-19

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-24

*D*=

*d*+ 1 dimensions, which are Einstein gravity extended with higher-order curvature invariants in such a way that the linearized spectrum around the AdS vacua involves only the massless graviton. We derive the covariant holographic two-point functions and find that they have a universal structure. In particular, the theory-dependent...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-23

*e*

^{±}

*μ*

^{∓}

*jj*at the HL-LHC and the FCC-hh (or the SppC). We perform a multivariate analysis at the detector level including the dominant SM backgrounds from...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-56

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-40

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-24

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-37

*ω*=

*iλ*...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-44

_{3}blocks in a two-dimensional field theory and compare the results with holographic computations involving probe particles propagating in flat space cosmologies. On the field theory side, we generalize the monodromy method used in the context of AdS/CFT to theories with BMS symmetry. On the bulk side, we consider geodesic Feynman diagrams, recently introduced...

Journal of High Energy Physics > 2018 > 2018 > 10 > 1-27

*Z*

^{′}boson, between the dark matter

*χ*and the SM. Limits derived from mono-X channels are most effective when the mediator can decay into two on-shell dark matter particles:...