65 research outputs found
Phenomenology of Light Sneutrino Dark Matter in cMSSM/mSUGRA with Inverse Seesaw
We study the possibility of a light Dark Matter (DM) within a constrained
Minimal Supersymmetric Standard Model (cMSSM) framework augmented by a SM
singlet-pair sector to account for the non-zero neutrino masses by inverse
seesaw mechanism. Working within a 'hybrid' scenario with the MSSM sector fixed
at high scale and the singlet neutrino sector at low scale, we find that,
contrary to the case of the usual cMSSM where the neutralino DM cannot be very
light, we can have a light sneutrino DM with mass below 100 GeV satisfying all
the current experimental constraints from cosmology, collider as well as
low-energy experiments. We also note that the supersymmetric inverse seesaw
mechanism with sneutrino as the lightest supersymmetric partner can have
enhanced same-sign dilepton final states with large missing transverse energy
(mET) coming from the gluino- and squark-pair as well as the squark-gluino
associated productions and their cascade decay through charginos. We present a
collider study for the same-sign dilepton+jets+mET signal in this scenario and
propose some distinctions with the usual cMSSM. We also comment on the
implications of such a light DM scenario on the invisible decay width of an 125
GeV Higgs boson.Comment: 24 pages, 4 figures, 7 tables; matches published versio
Image perception and interpretation of abnormalities; can we believe our eyes? Can we do something about it?
The radiologistâs visual impression of images is transmitted, via non-visual means (the report), to the clinician. There are several complex steps from the perception of the images by the radiologist to the understanding of the impression by the clinician. With a process as complex as this, it is no wonder that errors in perception, cognition, interpretation, transmission and understanding are very common. This paper reviews the processes of perception and error generation and possible strategies for minimising them
Political Confucianism and the Politics of Confucian Studies
Through the 1980s Confucian studies in the United States tended to present Confucianism as compatible with liberal democratic values. Since the 1990s, after the rise of China as a global power, Confucianism is increasingly defended as a political alternative to liberal and democratic values. This essay argues that Confucianism is not compatible with liberal democratic values, and that the rise of political Confucianism opposed to liberal democracy is a return to a more authentic Confucianism. Furthermore, it is argued that the defense of this undemocratic and illiberal Confucianism in the West, notably by Stephen C. Angle and Daniel A. Bell, reflects and reveals the precarious state of democracy in our present historical moment
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