<p>In a word, no.</p>

<p>The universe was certainly quite hot for the first few hundred thousand years, but most of the important events of the Big Bang happened in the first few <em>seconds</em>, when the universe was <em>extremely</em> hot. </p>

<p>By the time the universe was about 10 seconds old it was cool enough for protons and neutrons to combine into deuterium and thence helium, as well as a little bit of lithium-7. (Small amounts of tritium and beryllium-7 were also produced, but they are both radioactive with short halflives, and they soon decayed to helium &amp; lithium, respectively).</p>

<p>That phase, known as <a href="https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis" rel="noreferrer">Big Bang nucleosynthesis</a>, lasted until the universe was about 20 minutes old.</p>

<p>Particles acquired mass via the Higgs mechanism when the universe was only about 1 picosecond (<span class="math-container">$10^{-12}$</span> seconds) old, if not earlier. That phase is known as the <a href="https://en.wikipedia.org/wiki/Chronology_of_the_universe#Electroweak_epoch" rel="noreferrer">electroweak epoch</a>. At the start of that epoch, the temperature of the universe was around <span class="math-container">$10^{28}$</span>K. The temperature in the core of a white dwarf is in the order of <span class="math-container">$10^7$</span>K, which is  far too cool to disturb the Higgs field.</p>

CC BY-SA 4.0
2019-06-24T17:59:32.420Z
FWIW, there are stars with much hotter cores than white dwarfs. Stars with a mass of 130 to 150 $M\odot$ (solar masses) can achieve core temperatures of $3\times10^8$K towards the end of their life. Most of the photons produced in the core at that stage are gamma rays with enough energy to induce the production of antimatter. The subsequent reactions blow the star completely apart in a [pair-instability supernova](https://en.wikipedia.org/wiki/Pair-instability_supernova).
PM 2Ring
CC BY-SA 4.0
2019-06-24T17:44:55.613Z
2019-06-24T17:44:55.613Z
PM 2Ring
<p>White dwarfs rank among the hottest things in the universe. In the early years of the life of the universe, universe was very hot and the Higgs field was deactivated causing all the particles generated by quantum fluctuations to travel at the speed  of light (being massless). Is the Higgs field inside a white dwarf also deactivated so that any pair of particles-antiparticles will travel at the speed of light?</p>

CC BY-SA 4.0
2019-06-25T05:08:59.860Z
"White dwarfs rank among the hottest things in the universe" - not quite. Neutron stars start at $10^{11} $ or more, though the loss of neutrinos rapidly cools them to a $10^7 $ surface temperature, which is equivalent to a white dwarf's *core* temperature. However, a white dwarf's *surface* temperature is several orders below that. Even conceptually, you'd expect neutron stars to be hotter than white dwarfs given their much greater density and level of degeneracy.
Chappo Hasn't Forgotten
CC BY-SA 4.0
2019-06-25T17:01:35.020Z
Rank amongst the hottest thing , they are not the hottest:P
Warrior
<white-dwarf><high-energy-astrophysics>
Higgs Field inside a White Dwarf
Warrior
# Higgs Field inside a White Dwarf

(Asked by: username_0 on 2019-06-24)

White dwarfs rank among the hottest things in the universe. In the early years of the life of the universe, universe was very hot and the Higgs field was deactivated causing all the particles generated by quantum fluctuations to travel at the speed of light (being massless). Is the Higgs field inside a white dwarf also deactivated so that any pair of particles-antiparticles will travel at the speed of light?

**Tags:** white-dwarf, high-energy-astrophysics
> **Comments:**
> **username_1**: "White dwarfs rank among the hottest things in the universe" - not quite. Neutron stars start at $10^{11} $ or more, though the loss of neutrinos rapidly cools them to a $10^7 $ surface temperature, which is equivalent to a white dwarf's *core* temperature. However, a white dwarf's *surface* temperature is several orders below that. Even conceptually, you'd expect neutron stars to be hotter than white dwarfs given their much greater density and level of degeneracy.  
> **username_0**: Rank amongst the hottest thing , they are not the hottest:P  

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## 1 answers

### Answer by username_2 on 2019-06-24. Score: 6 | Accepted answer

In a word, no.

The universe was certainly quite hot for the first few hundred thousand years, but most of the important events of the Big Bang happened in the first few *seconds*, when the universe was *extremely* hot.

By the time the universe was about 10 seconds old it was cool enough for protons and neutrons to combine into deuterium and thence helium, as well as a little bit of lithium-7. (Small amounts of tritium and beryllium-7 were also produced, but they are both radioactive with short halflives, and they soon decayed to helium & lithium, respectively).

That phase, known as [Big Bang nucleosynthesis](https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis), lasted until the universe was about 20 minutes old.

Particles acquired mass via the Higgs mechanism when the universe was only about 1 picosecond ($10^{-12}$ seconds) old, if not earlier. That phase is known as the [electroweak epoch](https://en.wikipedia.org/wiki/Chronology_of_the_universe#Electroweak_epoch). At the start of that epoch, the temperature of the universe was around $10^{28}$K. The temperature in the core of a white dwarf is in the order of $10^7$K, which is far too cool to disturb the Higgs field.

> **Comments:**
> **username_2**: FWIW, there are stars with much hotter cores than white dwarfs. Stars with a mass of 130 to 150 $M\odot$ (solar masses) can achieve core temperatures of $3\times10^8$K towards the end of their life. Most of the photons produced in the core at that stage are gamma rays with enough energy to induce the production of antimatter. The subsequent reactions blow the star completely apart in a [pair-instability supernova](https://en.wikipedia.org/wiki/Pair-instability_supernova).  

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