sterile neutrinos - 2023 Penn Bowl @ UNC

Question

In 2021, the MicroBooNE experiment showed no signs of these hypothetical leptons, and it failed to reproduce anomalies found in 2018 by MiniBooNE that hint at the existence of these particles. For 10 points each:

[10h] Identify these right-handed particles that do not participate in any of the three interactions described by the Standard Model and only interact via gravity.

ANSWER: sterile neutrinos [reject “neutrinos”]

[10m] If sterile neutrinos exist, neutrinos would be the only fundamental particles that are these types of particles, defined as particles that are their own antiparticle.

ANSWER: Majorana particles [or Majorana fermions]

[10e] Unless sterile neutrinos, normal neutrinos engage in this fundamental interaction mediated by the W and Z bosons. This force is united with electromagnetism by Glashow, Weinberg, and Salam.

ANSWER: weak force [or weak interaction]

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Summary


2023 Penn Bowl @ Waterloo	10/28/2023	Y	3	16.67	100%	33%	33%
2023 Penn Bowl @ FSU	10/28/2023	Y	1	10.00	100%	0%	0%
2023 Penn Bowl (Harvard)	10/21/2023	Y	1	20.00	100%	100%	0%
2023 Penn Bowl (Mainsite)	10/21/2023	Y	3	10.00	33%	33%	33%
2023 Penn Bowl (Norcal)	10/28/2023	Y	1	20.00	100%	100%	0%
2023 Penn Bowl (South Central)	10/28/2023	Y	1	30.00	100%	100%	100%
2023 Penn Bowl (UK)	10/28/2023	Y	5	18.00	100%	60%	20%
2023 Penn Bowl @ UNC	10/28/2023	Y	2	15.00	100%	50%	0%

Data


UNC A	Duke A	0	10	10	20
USC A	UNC C	0	0	10	10