4-Chloro-N′-(4-meth­oxy­benzyl­idene)benzohydrazide methanol monosolvate

The title compound, C15H13ClN2O2·CH4O, consists of a 4-chloro-N′-(4-meth­oxy­benzyl­idene)benzohydrazide (CMB) mol­ecule and a methanol mol­ecule of crystallization. It was obtained by the condensation of 4-meth­oxy­benzaldehyde with 4-chloro­benzohydrazide. In the CMB mol­ecule, the dihedral angle between the two benzene rings is 50.1 (3)°. The methanol mol­ecule is linked to the CMB mol­ecule through O—H⋯O and O—H⋯N hydrogen bonds. In the crystal, CMB mol­ecules are linked through inter­molecular N—H⋯O hydrogen bonds, involving the methanol mol­ecule, forming chains propagating along [010]

Discriminating between Higgs Production Mechanisms via Jet Charge at the LHC

Discriminating the Higgs production mechanisms plays a crucial role in directly measuring the couplings of Higgs to gauge bosons for probing the nature of the electroweak symmetry breaking. We propose a novel method to distinguish the Higgs production mechanisms at the LHC by utilizing the jet charge asymmetry of the two leading forward jets in Higgs plus two jets production. This novel observable provides a way to disentangle the $W$-fusion from the $Z$-fusion and gluon fusion processes for the first time, due to the electric charge correlation of the two leading jets in the events. We show that the Higgs couplings to gauge bosons can be well constrained and its conclusion does not depend on the other possible new physics effects which modify the Higgs total or partial width. We also discuss the complementary roles between the proposed jet charge asymmetry measurement and the Higgs signal strength measurements at the HL-LHC in determining the Higgs couplings.Comment: 6 pages, 5 figures, version accepted by PR

Improved resummation prediction on Higgs boson production at hadron colliders

We improve the resummation calculations in the ResBos program for the Higgs boson production via gluon-gluon fusion by including the NNLO Wilson coefficient functions and G-functions. The improvement leads to increasing the total cross section predictions of the new ResBos program, dubbed as ResBos2, for Higgs boson production by about 8% and 6% at the Tevatron and the LHC, respectively, as compared to the old ResBos program. Furthermore, the improved predictions are compared with those from the programs HNNLO and HqT2. We find that they agree well for the total cross sections but differ slightly for the transverse momentum $Q_T$ distributions. With ResBos2, we present the distributions of the two variables $a_T$ and $\phi^{*}$, which can have better experimental resolutions than $Q_T$, for the process of Higgs boson decaying into a photon pair. Theoretical uncertainties of the ResBos2 predictions are also discussed.Comment: 15 pages, 8 figures, 2 table