# Which subatomic particle has the smallest mass?

The electro, formerly considered the lightest particle, has a mass of 511,000 electron volts.Then it was found that a neutrino as an even lighter **detectable** particle has a mass of 0.05 electron volts and one had to correct the opinion that neutrinos do not have a mass fraction.And again and again they have been tracked down, there are so many that the leading employees of the Super-Kamiokande Collaboration (“Super-K”) in Japan think that the neutrinos produced in the Big Bang, which filled the entire room, have a total mass, which comparable to the mass of all stars.

And the research continues: One is currently moving at the interface of particle physics, string theory and cosmology.

In particle physics, the experiments at the Large Hadron Collider (LHC) in Geneva will re-examine the question of the elementary building blocks of matter and explore the mechanism responsible for generating its masses.In neutrino experiments, the properties of neutrinos (mass and mixing angles) are remeasured, which are of interest for particle physics as well as for cosmology.

These developments are accompanied by theoretical and mathematical studies.In particular, possible (supersymmetric) extensions of the standard model of particle physics are investigated.

Such theories provide:

- interesting predictions for new elementary particles
- a promising candidate for dark matter/energy
- aspects of cosmic leptogenesis as well as
- quantum field theory of cosmology.

In theory, particle physics and cosmology are brought together in **string theory.**

The mathematical development of string theory as well as its applications in particle physics and cosmology form a central research heavyweight.Here, the mathematical foundations of string theory are further developed as well as possible particle-physical models of string theory are investigated.

The connection between string theory and quantum chromodynamics as well as the role of scalar fields in the physics of the early universe are further new research aspects, with the aim of developing and establishing a unified theory of matter and space-time.

The “strings”, the lowest mass and energy unit represent.

Strings are one-dimensional energy objects and the elementary endpoints of string theory.They wander between the dimensions that are permeable to the strings as one-dimensional objects. If they are “quite” here, they are closed, so “ringfærming”, they are only partially here. partly “other” they are perceived as threads, strings. More and more experts are leaning towards this theory and saying: Strings are the real** ATOM.**

Owohl the theory is diametrically different over the conventional “ART”.The standard model of particle physics assumes zero-dimensional objects in the sense of points as fundamental building blocks of the world. This string model was the first to resolve the contradiction between quantum physics and Albert Einstein’s general theory of relativity of gravity.

Particles are therefore based on strings that vibrate more violently, i.e. with higher energy, and vice versa. Due to the extreme shortness of the vibration and the high energy potential within it, direct detection is very complex.However, a string can vibrate in two different ways, one distinguishes here between the just explained ordinary vibrations and so-called center of gravity vibrations. Recent experiments on heavy ion accelerators show their “memeability”: When two heavy ions collide, the numerous quarks and gluons in their nuclei form a drop of “quark-gluon soup”, which then evaporates in the form of a variety of hadrons.

The strings are thus a radically new approach to describing the nature of space, force and matter.Because not only the matter particles, but also all force particles follow the suggestions of the strings. So there are ultimately no differences between mass, energy, gravity, time and space, because everything is simultaneously in different dimensions that influence each other.

If you want to read more:

Answer by Rolf A. Pira to What is String Theory?Is there an explanation for a layman like me that also a “normal citizen” understands?

Answer by Rolf A. Pira to What is the String Theory and what are the simple examples of this?