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The strong CP problem is sometimes regarded as an unsolved problem in physics, and has been referred to as "the most underrated puzzle in all of physics." There ...
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Strong CP problem

Güçlü CP problemi, parçacık fiziğinde şu ikilemi ortaya çıkaran bir sorudur: kuantum kromodinamiği neden CP-simetrisini koruyor gibi görünüyor? Parçacık fiziğinde CP, yük eşlenik simetrisi ve parite simetrisinin birleşimini ifade eder. Wikipedia (İngilizce)
As the Strong CP problem is a question about the properties of the neutron, we need to develop a theory of neutrons and low-energy QCD. In this section, we ...
19 Kas 2019 · This is where the problem comes in. In the Standard Model, certain interactions are forbidden, while others are allowed. For the electromagnetic ...
The strong CP problem is a serious flaw of the standard model (SM), especially of its strong interaction section. This problem has been attacked for 15 years.
We suggest a new solution to the strong CP problem. The solution is based on the proper use of the boundary conditions for the QCD-generating functional ...
21 Mar 2024 · The strong CP problem is considered one of the biggest unsolved physics problems. A nonvanishing value of θ in QCD θ-term violates CP-symmetry.
18 Ara 2023 · Our solution obeys the principle of renormalizability of Quantum Field Theory and does not involve new exotic particles like axions. Comments: ...
16 May 2022 · Quantum chromodynamics, the theory of strong interaction, admits a term which explicitly violates parity $P$ and time reflection invariance ...
24 Tem 2006 · I discuss in detail the properties and dynamics of axions, focusing particularly on invisible axion models where axions are very light, very ...