All Questions
42
questions
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40
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What are some highly unstable phenomena you can observe from lightyears away?
I'm currently drafting some scifi story where the protagonist is in a long timeloop and wants to figure out when the loop starts exactly based on observing some unstable phenomena, like atomic decay ...
- 181
1
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0
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68
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Does the neutrino take on different masses/energy/mometum in beta decay?
I am currently learning about quantum mechanics in my 12th grade Physics course and we're currently covering nuclear energy levels.
I understand that alpha and gamma decay is discrete, as there is ...
- 11
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32
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Difference between $Q$ value and Total energy in a beta minus decay
I was going through the kinematics of beta minus decay. I understood that the $Q$ value in the beta minus decay is the sum of the KE of electron and anti-neutrino
$$Q= E_e + E_\nu.$$ Here the $E_e$ ...
- 29
1
vote
1
answer
56
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Has there been experimental confirmation of electron capture being a neutrino source?
Detecting nuetrinos is not easy of course but it seems that there are several interesting ways of playing with neutrinos using radioactive sources that can only decay by electron capture.
For example, ...
- 639
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2
answers
338
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In a hypothetical neutrinoless beta decay, how the energy spectrum will look like?
If we consider a hypothetical situation in which $\beta^-$ deacay is happening without emitting any anti-neutrino, to be precise, a neutrinoless beta decay is happening. So, in this case, how the ...
- 392
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1
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190
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What form of energy can a neutrino have in a beta decay process?
While solving numericals from the Concept of Physics by HC Verma , I noticed that he never mentioned the term kinetic energy of a neutrino. There were some questions asking about the maximum kinetic ...
- 8,230
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0
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39
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Rate of neutrino generation in Earth's core?
I know that there are radioactive elements present in the Earth's core, but has anyone determined how much? That is, do we have an estimate of the number of neutrinos per second generated within the ...
- 15.6k
1
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1
answer
56
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Has neutrinoless double-beta decay been observed?
After searching on this question in the archives here, it would appear that as of 2018, neutrinoless double beta decay had still not been observed. Has the situation changed since then? Can anybody ...
- 95.5k
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38
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origins of the beta-decay energy spectrum [duplicate]
I understand that when beta decay occurs in the nucleus, the reason that the emergent electrons possess a distribution of energies is that varying amounts of the total energy release in the reaction ...
- 95.5k
1
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1
answer
217
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Why was a third particle, the neutrino, necessary to explain the continuous energy spectrum of beta-decay? [duplicate]
Question pretty much in title. I am confused as to why it couldn't just be that the energy is shared between the 'leftover' particle and the beta particle hence creating a continuous energy spectrum ...
- 51
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1
answer
63
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In neutrinoless double beta decay, what happens when the neutrino(s) is/are absorbed? Is a lepton released, as per usual?
Neutrinos are detected when they 'hit' a nucleus and are re-directed (z-boson) or 'create' a leptons that matches the type of neutrino....
What happens when the neutrino(s) in a neutrinoless double ...
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-2
votes
2
answers
431
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Beta ray maximum energy
I recently participated in a classical experiment that can calculate the maximum energy of a beta radiation emission (for Tl-204). When I searched the internet for other results for comparison, I ...
- 157
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1
answer
148
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How would a monochromatic line in the $\beta$-decay spectrum neglect the existence of neutrinos?
When reading about the history of the discovery of the neutrino I came across the following paragraphs in my lecturer's notes:
(...) physicists were puzzled by the continuous spectrum of $\beta$-...
- 753
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1
answer
69
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Linear fit error for beta decay spectrum
I'm trying to get an upper bound to the neutrino mass with kurie plot.
In order to do that I need to make a linear fit in order to get energy value that corresponds to $y=0$.
($y$ the kurie plot). The ...
- 1
0
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1
answer
122
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Electron count in radioactive decay
I was studying nuclear physics this day and I read about radioactive decays.
$\beta$-plus decay turns one proton in the nucleus into one neutron, one positron and one neutrino.
I was wondering about ...
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