scholarly journals Determining the squark mass at the LHC

2011 ◽  
Vol 83 (9) ◽  
Author(s):  
Vernon Barger ◽  
Yu Gao ◽  
Andre Lessa ◽  
Xerxes Tata
Keyword(s):  
Squark Mass

scholarly journals VIRTUAL SUPERSYMMETRIC CORRECTIONS IN e+e- ANNIHILATION

1998 ◽  
Vol 13 (24) ◽  
pp. 1987-1996 ◽  
Author(s):  
L. CLAVELLI ◽  
P. W. COULTER ◽  
LEVAN R. SURGULADZE
Keyword(s):  
Total Width ◽  
Leading Order ◽  
Squark Mass ◽  
Supersymmetric Particles

Depending on their masses, supersymmetric particles can affect various measurements in Z decay. Among these are the total width (or consequent extracted value of αs), enhancement or suppression of various flavors, and left–right and forward–backward asymmetries. The latter depend on squark mass splittings and are, therefore, a possible test of the supergravity related predictions. We calculate leading order corrections for these quantities considering in particular the case of light photino and gluino where the SUSY effects are enhanced. In this limit the effect on αs is appreciable, the effect on Rb is small, and the effect on the asymmetries is extremely small.

scholarly journals STOP SQUARK SEARCH AT TEVATRON IN THE LIGHT SLEPTON SCENARIO

1999 ◽  
Vol 14 (14) ◽  
pp. 2239-2255 ◽  
Author(s):  
ASESHKRISHNA DATTA ◽  
MONORANJAN GUCHAIT ◽  
KYOUNG KEUN JEONG
Keyword(s):  
Parameter Space ◽  
Semileptonic Decay ◽  
Data Set ◽  
Squark Mass ◽  
Minimal Supergravity

In minimal-supergravity-based supersymmetry models the charged sleptons as well as the sneutrinos may be lighter than the squarks. In such a light slepton scenario search for the lighter stop squark has been investigated in the dilepton + missing pT[Formula: see text](≥ 1) channel at Tevatron. In this scenario semileptonic decay of the lighter stop squark has been considered via off-shell and on-shell charginos. In the latter case the chargino undergoes pure leptonic two-body decay. We observe that for some favorable region of the MSSM parameter space one can probe the lighter stop squark mass up to 140 GeV with few events in the present data set for which the luminosity is 110 pb -1. At the MI upgrade one is likely to end up with more events.

scholarly journals NEUTRON ELECTRIC DIPOLE MOMENT AND FLAVOR CHANGING INTERACTIONS IN SUPERSYMMETRIC THEORIES

2005 ◽  
Vol 20 (38) ◽  
pp. 2969-2976 ◽  
Author(s):  
GI-CHOL CHO ◽  
NAOYUKI HABA ◽  
MINAKO HONDA
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Mass Difference ◽  
Neutron Electric Dipole Moment ◽  
Squark Mass ◽  
Flavor Changing ◽  
Mixing Effects ◽  
Flavor Mixing ◽  
Supersymmetric Theories

Supersymmetric contributions to the neutron electric dipole moment (EDM) are studied by taking account of the flavor changing interactions. We found that the gluino contribution is sensitive to the flavor changing interaction. Enhancement of neutron EDM via flavor mixing effects is possible when the squark mass difference between the different generations is sizable. As an example, the results of the SUSY SU (5) GUT with right-handed neutrinos are briefly discussed.

THE MASS OF A QUARK–SQUARK BOUND STATE FROM QCD SUM RULES

1999 ◽  
Vol 14 (30) ◽  
pp. 4763-4780
Author(s):  
M. MEYER-HERMANN ◽  
A. SCHÄFER
Keyword(s):  
Sum Rules ◽  
Mass Range ◽  
Bound State ◽  
Higher Order ◽  
Qcd Sum Rules ◽  
Mass Effects ◽  
Squark Mass

We give an estimate of the expected mass range for a possible two-quark two-squark bound state, using QCD sum rules. The sum rules are modified, taking mass effects into account, so that a treatment of heavy squarks becomes justified. The influence of the higher-order mass corrections and the possibility of a bound state mass below the squark mass are discussed.

scholarly journals Squark mass determination at the next generation of lineare+e−colliders

1994 ◽  
Vol 49 (5) ◽  
pp. 2369-2381 ◽  
Author(s):  
Jonathan L. Feng ◽  
Donald E. Finnell
Keyword(s):  
Mass Determination ◽  
Next Generation ◽  
Squark Mass

scholarly journals Slepton production as a probe of the squark mass scale

1998 ◽  
Vol 57 (3) ◽  
pp. 1539-1552 ◽  
Author(s):  
Mihoko M. Nojiri ◽  
Damien M. Pierce ◽  
Youichi Yamada
Keyword(s):  
Mass Scale ◽  
Squark Mass

scholarly journals Search for new physics in events with jets, b-tagged jets, and large missing transverse momentum in the all-hadronic channel at sqrt(s) = 13 TeV

2018 ◽  
Vol 182 ◽  
pp. 02011
Author(s):  
Keyword(s):  
Transverse Momentum ◽  
New Physics ◽  
Supersymmetric Particle ◽  
Significant Excess ◽  
Simplified Models ◽  
Squark Mass ◽  
Missing Transverse Momentum ◽  
Cms Experiment ◽  
The Standard Model ◽  
Lower Limits

A search for new physics in events with jets, b-tagged jets, missing transverse momentum, and no leptons, corresponding to an integrated luminosity of 35.9 fb-1 collected by the CMS experiment at sqrt(s) = 13 TeV, is presented. No significant excess of events on top of the standard model background expectation is observed. Results are interpreted in terms of a number of simplified supersymmetry models featuring squark and gluino production, and in terms of the pMSSM-19. For simplified models, lower limits on the gluino (squark) mass are established in the range 1.80-1.95 TeV (1.00-1.05 TeV), assuming a massless lightest supersymmetric particle.

scholarly journals Heavy bottom squark mass in the light gluino and light bottom squark scenario

2003 ◽  
Vol 569 (3-4) ◽  
pp. 194-198 ◽  
Author(s):  
Zumin Luo ◽  
Jonathan L. Rosner
Keyword(s):  
Squark Mass
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