A research team at Penn State University has found evidence of some Antarctic particles which do not fit the Standard Model of physics.
The paper is called “The ANITA Anomalous Events as Signatures of a Beyond Standard Model Particle, and Supporting Observations from IceCube” and investigates the conclusions which can be drawn from the Antarctic particles which do not fit the Standard Model of Physics.
The ANITA collaboration
The ANITA (Antarctic Impulse Transient Antenna) collaboration is a team of researchers which are currently funded by NASA. The IceCube Neutrino Observatory is a neutrino observatory at the Amundsen–Scott South Pole Station in Antarctica, with thousands of sensors under the Antarctic ice.
The Antarctic Particles which do not fit the Standard Model
The European Organization for Nuclear Research (CERN) said: ‘Although the Standard Model accurately describes the phenomena within its domain, it is still incomplete. Perhaps it is only a part of a bigger picture that includes new physics hidden deep in the subatomic world or in the dark recesses of the universe.’
When high-energy particles encounter the Earth, there is usually a collision of particles. However, the research team has observed two anomalous events. The researchers define these events as: ‘Two anomalous events that appear to be…cosmic ray showers emerging from the Earth with exit angles of 27 and 35, respectively.’
These events have indicated the existence of Antarctic particles which do not fit the Standard Model. The paper sought to explore the question of whether “beyond the Standard Model” (BSM) particles are needed to explain the anomalous events observed by the ANITA collaboration. The paper concludes that BSM particles are required to explain the Antarctic Particles. The researchers wrote: ‘Seeking confirmation or refutation of the physical phenomenon of sub-EeV Earth-emergent cosmic rays in data from other facilities, we find support for the reality of the ANITA events, and three candidate analog events, among the Extremely High Energy Northern Track neutrinos of the IceCube Neutrino Observatory.