What was the rest mass of the ZZ pair found at the LHC?

In summary, rest mass is the mass of an object when it is at rest. The rest mass of the ZZ pair is important in understanding particles and their interactions, and it was measured at the LHC using data from collisions. The unit of measurement for rest mass is in electron volts, and it is sometimes referred to as the invariant mass because it remains the same regardless of the frame of reference.
  • #1
Bob S
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http://physicsworld.com/cws/article/news/44305

Bob S
 
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  • #2
Nice.

Incidentally, if you follow the link at the bottom of the article and go to the original talk, near the end of the talk (~pg20), they note the rest mass of the ZZ pair to be 200 Gev, which is in the heart of an "excluded" Higgs mass region, so probably not a Higg's sighting yet.
 

What is rest mass?

Rest mass is the mass of an object when it is at rest, meaning it is not moving.

Why is the rest mass of the ZZ pair important?

The rest mass of the ZZ pair is important because it helps us understand the nature of particles and their interactions. It also plays a crucial role in the development of theories and models in particle physics.

How was the rest mass of the ZZ pair measured at the LHC?

The rest mass of the ZZ pair was measured using data collected from collisions at the Large Hadron Collider (LHC). Scientists analyzed the energy and momentum of the particles produced in these collisions to determine the rest mass of the ZZ pair.

What is the unit of measurement for the rest mass of the ZZ pair?

The unit of measurement for the rest mass of the ZZ pair is in electron volts (eV) or its multiples, such as kiloelectron volts (keV) or gigaelectron volts (GeV).

Why is the rest mass of the ZZ pair sometimes referred to as the invariant mass?

The rest mass of the ZZ pair is sometimes referred to as the invariant mass because it remains the same regardless of the frame of reference. This means that no matter how fast or slow an observer is moving, they will measure the same rest mass for the ZZ pair.

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