Electrons near speed of light in space

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Discussion Overview

The discussion centers on the behavior of electrons traveling near the speed of light, particularly in relation to magnetic fields and their potential applications in laboratory settings. Participants explore the implications of a study suggesting that electrons can achieve high energies and speeds in specific conditions, as well as the current capabilities of particle accelerators on Earth.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant references a study indicating that magnetic fields can create a "pocket" for electrons to achieve speeds up to 80% of the speed of light and questions how to replicate this in laboratory conditions.
  • Another participant notes that electrons are routinely accelerated to near light speed in particle accelerators, citing the LEP as an example.
  • A further contribution emphasizes the cleanliness of electron collisions due to their fundamental nature, contrasting this with collisions involving protons and antiprotons, which involve more complex interactions among quarks and gluons.
  • Participants discuss the historical context of particle colliders and linear accelerators, highlighting the relationship between collider advancements and discoveries in particle physics, including the mention of an international initiative to build a next-generation linear accelerator to complement the LHC.

Areas of Agreement / Disagreement

Participants generally agree on the capabilities of current particle accelerators to accelerate electrons to high speeds, but there is no consensus on how to replicate the specific effects described in the referenced study or the implications of these findings.

Contextual Notes

The discussion includes assumptions about the feasibility of replicating high-energy electron behavior in laboratory settings and the dependence on specific experimental conditions. There are unresolved aspects regarding the interaction of magnetic fields and the precise mechanisms at play in achieving the stated electron speeds.

fcpeace17
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http://www.spacedaily.com/news/stellar-02d.html
how would one go about reproducing these effects, have their been more studies since this study? basically it is saying that there is a way for magnetic fields to interact so that there is a "pocket" in which electrons are charged with extremely high energy and can travel at 80@ the speed of light. how can we bring this down to Earth and work with it in the lab? Evan
 
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Electrons are routinely accelerated to near light speed in particle accelerators here on Earth (LEP for example).
 
Just to expand on that, the fact that electrons are light and fundamental makes their collisions extremely clean.

At Fermilab, the collisions are made between protons and antiprotons instead; in that case, the main collision occurs between one quark from each proton/antiproton, but there is a lot more going on around. Lower energy collisions among the rest of the particles that make each particle (other quarks and the gluons inside it) produce a lot more particles and a much more difficult environment from which to extract conclusions about what hapened.
 
ahrkron said:
Just to expand on that, the fact that electrons are light and fundamental makes their collisions extremely clean.

At Fermilab, the collisions are made between protons and antiprotons instead; in that case, the main collision occurs between one quark from each proton/antiproton, but there is a lot more going on around. Lower energy collisions among the rest of the particles that make each particle (other quarks and the gluons inside it) produce a lot more particles and a much more difficult environment from which to extract conclusions about what hapened.

Yup, and this is why each new generation of colliders has always been accompanied by a new generation of linear electron accelerators. Prettty much you have <colliders -> highest energy -> new particles>, (linears -> cleanest signals -> new laws>. For example all the upper division quarks were discovered at colliders, but the anomalous scaling that led to asymptotic freedom was discovered at SLAC, a linear accelerator.

There is an international initiative under way now to build a next-generation linear accelerator tocomplement the LHC, the new collider being built at CERN.
 

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