# Journal of High Energy Physics

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-39

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-29

*N*, an ADE group

*G*, and two nilpotent elements

*μ*

_{L,R}in

*G*. Nilpotent elements have a natural partial ordering, which has been conjectured to coincide with the hierarchy of renormalization-group flows among the SCFTs. In this paper we test this conjecture for

*G*= SU(

*k*), where AdS

_{7}duals exist...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-25

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-22

*O*(

*α*

_{em}) and NNLO corrections in the chiral expansion, which amount to 0.65(21)% and -0.71(29)% respectively. Both corrections are one order of magnitude smaller than the known NLO ones, confirming the very good convergence of the chiral expansion and its reliability. Using...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-21

*V*

_{tb}element of the Cabibbo-Kobayashi-Maskawa matrix under the following assumption: |

*V*

_{tb}| ≫ |

*V*

_{td}|, |

*V*

_{ts}|. For the first time, direct limits on |

*V*

_{td}| and |

*V*

_{ts}| are obtained using experimental data without the assumption of the unitarity of the CKM matrix. Limits on the |

*V*

_{td}|,...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-45

*pp*→

*WW*,

*WZ*channels to show that diboson production is, for a broad class of flavour models, already competitive with LEP-1 measurements for setting bounds on the dimension six operators parametrising the anomalous couplings between the quarks and the electroweak gauge bosons, at least under the assumption that any new particle is heavier...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-12

*CP*problem is

*the*one problem which cannot be solved by anthropic reasoning. We argue that this is not so. Due to nonperturbative dynamics, states with a different

*CP*violating paramenter

*θ*acquire different vacuum energies after the QCD phase transition. These add to the total variation of the cosmological constant in the putative landscape of Universes....

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-33

*Z*-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model in the electroweak sector. We illustrate this by focusing on the Type-II two Higgs doublet model (Type-II 2HDM). The contributions from the heavy Higgs bosons at the tree-level and at the one-loop level are...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-18

*p*-A) collisions focusing on final-state effects caused by the formation of an expanding medium. Toward this end we utilize a rate equation approach within a fireball model as previously employed for a wide range of heavy-ion collisions, adapted to the small systems in

*p*-A collisions. The initial geometry of the fireball is taken from a Monte-Carlo...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-24

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-22

*B*

_{c}meson. Effective operators are introduced to describe the couplings between quarks and light invisible particles. The Wilson coefficients are extracted from the experimental results of the

*B*and

*D*mesons, which are used to predict the upper limits of the...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-27

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-29

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-39

*α*

_{s}

^{n}ln

^{2n − 1}(1 −

*z*),

*n*= 1

*,*2

*, . . .*near the kine-matic threshold

*z*=

*Q*

^{2}/

*ŝ*→ 1 of the Drell-Yan process at next-to-leading power in the expansion in (1 −

*z*). The derivation of this result employs soft-collinear effective theory in position space and the anomalous dimensions of subleading-power soft functions, which are computed. Expansion of the resummed...

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-23

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-19

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-41

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-47

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-24

_{2}×

*S*

^{6}warped over a Riemann surface Σ. The general local solution was obtained in earlier work in terms of two holomorphic functions A ± $$ {\mathcal{A}}_{\pm } $$ on Σ. In the first part of this paper we seek global solutions corresponding to the near-horizon behavior of (

*p, q*)-string junctions....

Journal of High Energy Physics > 2019 > 2019 > 3 > 1-28

_{h}gauge symmetry can explain both the dark matter stability and the observed relic abundance. In this framework, the light gauge boson can mediate the strong dark matter self-interaction, which addresses astrophysical observations that are hard to explain in collisionless cold dark matter. Motivated by flavoured grand unified theories, we introduce right-handed...