0nu !new!: Co3

Assuming the correct notation refers to the double beta decay of Carbon-13 to Nitrogen-13:

While 13C could theoretically undergo 0νββ decay, there are no ongoing or planned experiments focused on this specific process due to its unfavorable characteristics. The search for 0νββ decay remains an active area of research in particle physics, with several experiments currently operating or planned to study this phenomenon in more promising nuclei. co3 0nu

Carbon-13 is not commonly studied for 0νββ decay due to its relatively low atomic mass and unfavorable Q-value. The more commonly studied isotopes have higher Q-values and larger nuclear matrix elements. Assuming the correct notation refers to the double

However, I need to point out that there seems to be a typo in your request. The commonly studied isotopes for 0νββ decay are not CO3 but rather nuclei like Germanium-76 (76Ge), Selenium-82 (82Se), Molybdenum-100 (100Mo), and Tellurium-130 (130Te), among others. The more commonly studied isotopes have higher Q-values

or