John Donoghue
@jfdonoghue.bsky.social
Theoretical physics. University of Massachusetts. https://websites.umass.edu/donoghue/
Thanks for the link. I did not know about that list.
November 6, 2025 at 1:10 AM
Thanks for the link. I did not know about that list.
Thanks Dan. It is definitely an honor to join the list of former recipients. (May I ask where you saw this - I have not seen it announced publicly yet.)
November 5, 2025 at 7:59 PM
Thanks Dan. It is definitely an honor to join the list of former recipients. (May I ask where you saw this - I have not seen it announced publicly yet.)
Seems problematic.
October 2, 2025 at 10:14 PM
Seems problematic.
Did something happen recently?
October 2, 2025 at 5:00 PM
Did something happen recently?
Yes, I would expect it to be the Sommerfeld enhancement, but I was thinking that the top Higgs coupling was larger than its QCD coupling. And it should have a similar enhancement. Do we know how they compare in the actual amplitude?
July 8, 2025 at 9:19 PM
Yes, I would expect it to be the Sommerfeld enhancement, but I was thinking that the top Higgs coupling was larger than its QCD coupling. And it should have a similar enhancement. Do we know how they compare in the actual amplitude?
Do you think that this if from Higgs exchange, which I think is stronger than QCD for the top quark at this energy?
July 8, 2025 at 9:01 PM
Do you think that this if from Higgs exchange, which I think is stronger than QCD for the top quark at this energy?
Mine is shorter - I did not use a period. ( The arXiv refused to let me post with this abstract and made me say No in many words, so I am surprised that he got it past the ArXiv admin. The journal was happy to use it as written.)
www.actaphys.uj.edu.pl/fulltext?ser...
www.actaphys.uj.edu.pl/fulltext?ser...
www.actaphys.uj.edu.pl
July 8, 2025 at 12:23 PM
Mine is shorter - I did not use a period. ( The arXiv refused to let me post with this abstract and made me say No in many words, so I am surprised that he got it past the ArXiv admin. The journal was happy to use it as written.)
www.actaphys.uj.edu.pl/fulltext?ser...
www.actaphys.uj.edu.pl/fulltext?ser...
Incredibly stupid. Such a major investment, and tremendous output - one of biggest success stories of our time. To cut this at its peak output is a crime.
May 30, 2025 at 11:38 PM
Incredibly stupid. Such a major investment, and tremendous output - one of biggest success stories of our time. To cut this at its peak output is a crime.
That one was indeed great. Also, their paper on the renormalization group of the weak nonleptonic Hamiltonian was a foundational classic.
journals.aps.org/prl/abstract...
journals.aps.org/prl/abstract...
$\ensuremath{\Delta}I=\frac{1}{2}$ Rule for Nonleptonic Decays in Asymptotically Free Field Theories
The effective nonleptonic weak interaction is examined assuming the Weinberg-Salam theory of weak interactions and an exactly-conserved-color gauge symmetry for strong interactions. It is shown that t...
journals.aps.org
May 25, 2025 at 4:14 PM
That one was indeed great. Also, their paper on the renormalization group of the weak nonleptonic Hamiltonian was a foundational classic.
journals.aps.org/prl/abstract...
journals.aps.org/prl/abstract...
Yes this is incredibly damaging.
April 17, 2025 at 7:37 PM
Yes this is incredibly damaging.
These work very well. I brought several home from a recent trip. Why not in the US?
March 5, 2025 at 9:07 PM
These work very well. I brought several home from a recent trip. Why not in the US?
It is a compilation of a lot of articles by many authors. All are on the arXiv. You can find many of them by using the search term Handbook of Quantum Gravity when searching via INSPIRE
March 1, 2025 at 9:08 PM
It is a compilation of a lot of articles by many authors. All are on the arXiv. You can find many of them by using the search term Handbook of Quantum Gravity when searching via INSPIRE
Aren’t you likely to run into trouble with the Witten-Weinberg theorem when you try for a relativistic model of this type?
February 27, 2025 at 12:00 AM
Aren’t you likely to run into trouble with the Witten-Weinberg theorem when you try for a relativistic model of this type?
The shape near the minimum needs to be a quadratic. Probably the first deviation from that is also fixed by the need for the Higgs potential to be part of a renormalizable Lagrangian. Can measurements of the shape really tell us much?
February 4, 2025 at 12:40 AM
The shape near the minimum needs to be a quadratic. Probably the first deviation from that is also fixed by the need for the Higgs potential to be part of a renormalizable Lagrangian. Can measurements of the shape really tell us much?
Probably Ampere rather than Lorentz
January 29, 2025 at 11:39 PM
Probably Ampere rather than Lorentz
Our expectation of background is the equivalent of an undergraduate Quantum Mechanic course. Two examples are the commutation relation of [x,p] and an introduction to perturbation theory.
January 26, 2025 at 5:53 PM
Our expectation of background is the equivalent of an undergraduate Quantum Mechanic course. Two examples are the commutation relation of [x,p] and an introduction to perturbation theory.
Maybe this is a good moment to reiterate that our book “Dynamics of the Standard Model”, which Gene contributed so much to (including Barry Holstein), is available for free (open access) at Cambridge University Press.
www.cambridge.org/core/books/d...
www.cambridge.org/core/books/d...
Dynamics of the Standard Model
Cambridge Core - Particle Physics and Nuclear Physics - Dynamics of the Standard Model
www.cambridge.org
January 21, 2025 at 3:34 PM
Maybe this is a good moment to reiterate that our book “Dynamics of the Standard Model”, which Gene contributed so much to (including Barry Holstein), is available for free (open access) at Cambridge University Press.
www.cambridge.org/core/books/d...
www.cambridge.org/core/books/d...