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Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-38 (2018)
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-38 (2018)
We study consequences of CP violation in the $ht\bar{t}$ Yukawa coupling through the process $e^+e^- \to$ $h(125)t\bar{t}$. The helicity amplitudes are calculated in the $t\bar{t}$ rest frame, where the initial $e^+e^-$ current and the final Higgs bo
Autor:
Vittorio Del Duca
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-13 (2018)
Journal of High Energy Physics, 2018 (2)
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-13 (2018)
Journal of High Energy Physics, 2018 (2)
We analyse the high-energy limit of the gluon-gluon scattering amplitude in QCD, and display an intriguing relation between the finite parts of the one-loop gluon impact factor and the finite parts of the two-loop Regge trajectory.
Journal of Hi
Journal of Hi
Autor:
Jun Gao, Pavel Nadolsky, Marco Guzzi, Sayipjamal Dulat, C.-P. Yuan, Jan Winter, Carl Schmidt, Tie-Jiun Hou, Keping Xie, Joey Huston
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-55 (2018)
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-55 (2018)
We investigate the possibility of a (sizable) nonperturbative contribution to the charm parton distribution function (PDF) in a nucleon, theoretical issues arising in its interpretation, and its potential impact on LHC scattering processes. The "fitt
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 12, Pp 1-42 (2017)
Journal of high energy physics 1712(12), 153 (2017). doi:10.1007/JHEP12(2017)153
Journal of High Energy Physics, Vol 2017, Iss 12, Pp 1-42 (2017)
Journal of high energy physics 1712(12), 153 (2017). doi:10.1007/JHEP12(2017)153
Future Higgs factories can reach impressive precision on Higgs property measurements. In this paper, instead of conventional focus of Higgs precision in certain interaction bases, we explored its sensitivity to new physics models at the electron-posi
Autor:
Linda M. Carpenter
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-21 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-21 (2017)
I explore the phenomenology of Supersymmetry models in which the gauginos are much heavier then that scalar particles of the MSSM. In these models, the gauginos are inaccessible to colliders while the scalar spectrum is compressed. I give several exa
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-24 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-24 (2017)
The process ${\rm p}{\rm p}\to\mu^+\nu_\mu{\rm e}^+\nu_{\rm e}{\rm j}{\rm j}$ receives several contributions of different orders in the strong and electroweak coupling constants. Using appropriate event selections, this process is dominated by vector
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-31 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-31 (2017)
We study a scenario in which the baryon asymmetry of the universe arises from a cosmological phase transition where lepton-number is spontaneously broken. If the phase transition is first order, a lepton-number asymmetry can arise at the bubble wall,
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-29 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-29 (2017)
We present virtual contributions up to two loop level in perturbative Quantum Chromodynamic (QCD) to the decay of pseudo-scalar Higgs boson (A) to three gluons (g) and also to quark (q), anti-quark ( $$ \overline{q} $$ ) and a gluon. With appropriate
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-23 (2017)
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-23 (2017)
The production of a neutral and a charged vector boson with subsequent decays into three charged leptons and a neutrino is a very important process for precision tests of the Standard Model of elementary particles and in searches for anomalous triple
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-21 (2017)
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-21 (2017)
Solutions to the electroweak hierarchy problem typically introduce a new symmetry to stabilize the quadratic ultraviolet sensitivity in the self-energy of the Higgs boson. The new symmetry is either broken softly or collectively, as for example in su