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The requirement of t-b-\tau Yukawa coupling unification is common in simple grand unified models based on the gauge group SO(10), and it also places a severe constraint on the expected spectrum of superpartners. For Yukawa-unified models…

高能物理 - 唯象学 · 物理学 2009-05-08 Howard Baer , Sabine Kraml , Sezen Sekmen , Heaya Summy

In the context of split supersymmetry, the gaugino mass spectrum seems to be very important to satisfy the dark matter content of the universe and the gauge coupling unification. In this paper, we have considered various sources of gaugino…

高能物理 - 唯象学 · 物理学 2011-08-17 Bhaskar Dutta , Yukihiro Mimura

We report on a search for inclusive production of squarks and gluinos in ppbar collisions at sqrt{s}=1.96 TeV, in events with large missing transverse energy and multiple jets of hadrons in the final state. The study uses a CDF Run II data…

高能物理 - 实验 · 物理学 2019-08-13 T. Aaltonen

We study dark matter for gaugino-mediated supersymmetry breaking and compact dimensions of order the grand unification scale. Higgs fields are bulk fields, and in general their masses differ from those of squarks and sleptons at the…

高能物理 - 唯象学 · 物理学 2009-11-11 Wilfried Buchmuller , Laura Covi , Joern Kersten , Kai Schmidt-Hoberg

We demonstrate that natural supersymmetry is readily realized in the framework of SU(4)_c \times SU(2)_L \times SU(2)_R with non-universal gaugino masses. Focusing on ameliorating the little hierarchy problem, we explore the parameter space…

高能物理 - 唯象学 · 物理学 2015-06-12 Ilia Gogoladze , Fariha Nasir , Qaisar Shafi

We investigate the possibility of testing supergravity unified models with scalar masses in the range 50-100 TeV and much lighter gaugino masses at the Large Hadron Collider. The analysis is carried out under the constraints that models…

高能物理 - 唯象学 · 物理学 2017-10-18 Amin Aboubrahim , Pran Nath

Simple SUSY GUT models based on the gauge group SO(10) require t-b-\tau Yukawa coupling unification, in addition to gauge coupling and matter unification. The Yukawa coupling unification places strong constraints on the expected…

高能物理 - 唯象学 · 物理学 2014-11-20 Howard Baer , Sabine Kraml , Andre Lessa , Sezen Sekmen , Heaya Summy

In the original paper entitled, "Masses of Fundamental Particles"(arXiv:1109.3705v5, 10 Feb 2012), not only the masses of fundamental particles including the weak bosons, Higgs boson, quarks, and leptons, but also the mixing angles of…

综合物理 · 物理学 2014-06-12 Hidezumi Terazawa

From generalized gravity mediation we build a SUGRA scenario in which the gluino is much heavier than the electroweak gauginos at the GUT scale. We find that such a non-universal gaugino scenario with very heavy gluino at the GUT scale can…

高能物理 - 唯象学 · 物理学 2015-06-24 Fei Wang , Wenyu Wang , Jin Min Yang

SU(2)xU(1) electroweak gauge model without Higgs sector is extended by a new vector field C interacting with leptons and quarks of both chiralities. This interaction is treated under a dynamical assumption in a self-consistent…

高能物理 - 唯象学 · 物理学 2009-09-25 Jiri Hosek

In this paper we show that the mixing between leptoquarks (LQ's) from different $SU(2)_l$ multiplets can generate a non-trivial Majorana mass matrix for neutrinos through one loop self energy diagrams. Such mixing can arise from gauge…

高能物理 - 唯象学 · 物理学 2009-10-31 Uma Mahanta

We provide the next-to-leading order (NLO) predictions for the neutralino pair production via quark-antiquark annihilation and gluon-gluon fusion at the CERN Large Hadron Collider, focusing on the lightest neutralino which is likely to be…

高能物理 - 唯象学 · 物理学 2014-04-16 M. Demirci , A. I. Ahmadov

A light singlino is a promising candidate for dark matter, and a light higgsino is natural in the parameter space of the NMSSM. We study the combined constraints on this scenario resulting from the dark matter relic density, the most recent…

高能物理 - 唯象学 · 物理学 2018-09-26 Ulrich Ellwanger , Cyril Hugonie

We consider the modifications to squark production in the presence of a naturally heavier Dirac gluino. First generation squark production is highly suppressed, providing an interesting but challenging signal find or rule out. No dedicated…

高能物理 - 唯象学 · 物理学 2013-08-16 Graham D. Kribs , Adam Martin

Inspired by the latest measurement of muon g-2 by the Fermilab Experiment, we revisit a class of supersymmetric models in which non-universality at M_GUT allows us to realize relatively light sleptons in the few hundred GeV range. These…

高能物理 - 唯象学 · 物理学 2021-07-12 Qaisar Shafi , Cem Salih Un

Searches for stable, hadronizing scalar quarks and gluinos are performed using the data collected with the ALEPH detector at LEP. Gluon splitting into a gluino or a squark pair is searched for at centre-of-mass energies around the Z…

高能物理 - 实验 · 物理学 2008-11-26 ALEPH Collaboration , Arno Heister

NLO SUSY-QCD contributions to associated production of gluinos and gauginos are shown to enhance the cross sections by about 10% at the Tevatron and by as much as a factor of two at the LHC. They shift the mass determinations or discovery…

高能物理 - 唯象学 · 物理学 2007-05-23 Edmond L. Berger , Michael Klasen , Tim M. P. Tait

In the axionic solution of the strong CP problem, fermions which transform under quantum chromodynamics (QCD) are required. In supersymmetry, by equating U(1)_{PQ} with U(1)_R, the natural candidates are the gluinos, as pointed out some…

高能物理 - 唯象学 · 物理学 2008-11-26 Ernest Ma

GUTs unify quarks and leptons into same representations and predict correlations between their masses and mixing. We perform numerical scans in SO(10) GUTs to explore the flavor space with new data of JUNO taken into account. The…

高能物理 - 唯象学 · 物理学 2026-03-23 Zi-Qiang Chen , Gao-Xiang Fang , Ye-Ling Zhou

We introduce a new observable, 'gluino stransverse mass', which is an application of the Cambridge $m_{T2}$ variable to the process where gluinos are pair produced in proton-proton collision and each gluino subsequently decays into two…

高能物理 - 唯象学 · 物理学 2008-11-26 Won Sang Cho , Kiwoon Choi , Yeong Gyun Kim , Chan Beom Park