Publications (7)
Signatures of Baryogenesis in the MSSM
H. Murayama, A. Pierce
We revisit the electroweak baryogenesis within the context of the minimal supersymmetric standard model (MSSM), studying its potential collider signatures. We find that this mechan…
Stopping Gluinos
A. Arvanitaki, S. Dimopoulos, A. Pierce +2
Long lived gluinos are the trademark of split supersymmetry. They form R-hadrons that, when charged, efficiently lose energy in matter via ionisation. Independent of R-spectroscopy…
New Particles Working Group Report of the Snowmass 2013 Community Summer Study
Y. Gershtein, M. Luty, M. Narain +92
This report summarizes the work of the Energy Frontier New Physics working group of the 2013 Community Summer Study (Snowmass).
Limits on Split Supersymmetry from Gluino Cosmology
A. Arvanitaki, C. Davis, P. W. Graham +2
An upper limit on the masses of scalar superpartners in split supersymmetry is found by considering cosmological constraints on long-lived gluinos. Over most of parameter space, th…
Beyond the Standard Model Physics at the HL-LHC and HE-LHC
X. Cid Vidal, M. D'Onofrio, P. J. Fox +294
This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in…
Anatomy of Coannihilation with a Scalar Top Partner
A. Ibarra, A. Pierce, N. R. Shah +1
We investigate a simplified model of dark matter where a Majorana fermion coannihilates with a colored scalar top partner . We explore the cosmological history, wit…