Explain p-process in nucleosynthesis

[sruthisupriya]

could anyone explain p-process in nucleosynthesis for me? i didnt find any suitable site.

 

[Astronuc]

could anyone explain p-process in nucleosynthesis for me? i didnt find any suitable site.

Does one mean p-p cycle, as opposed to CNO?

If so, http://csep10.phys.utk.edu/astr162/lect/energy/ppchain.html

also of interest - http://csep10.phys.utk.edu/astr162/lect/energy/cno-pp.html

pp-chain - http://zebu.uoregon.edu/~rayfrey/321/lecture5.pdf

or does one mean p-process as in

A type of nuclear reaction thought to occur in the early stages of a supernova explosion that results in the formation of certain neutron-deficient isotopes of elements from krypton to zirconium. It involves the capture of protons by nuclei previously formed by the r-process and the s-process.

http://www.daviddarling.info/encyclopedia/P/p-process.html

http://en.wikipedia.org/wiki/P-process

or try this paper - The p-process in supernovae - by Woosley, S. E.; Howard, W. M.

The nucleosynthetic origin of the rare proton-rich isotopes, usually called 'p-process' isotopes, is examined. A particularly interesting context for this synthesis is found to be explosive events characterized by peak temperatures in the range from 2 to 3 billion K. At these temperatures a series of photodisintegration reactions operating upon a distribution of r- and s-process seeds produces an abundance pattern that displays striking similarities to that of the p-process nuclei in the solar system. The large proton densities usually required for such synthesis are not needed. Requisite conditions for this model are expected to occur naturally in those zones of supernovae that have experienced helium and perhaps carbon burning prior to explosion. Implications for supernova structure, presupernova evolution, and cosmochronology are discussed, and a critical discussion of other current p-process models is presented.

http://sait.oat.ts.astro.it/MSAIt740203/PDF/2003MmSAI..74..466C.pdf It was current in 2003. Best to use 'save target as'.

http://www.astro.princeton.edu/~tremaine/ast541/johnson.ppt - good overview of various process in stellar nucleosynthesis

P-Process Nucleosynthesis inside Supernova-Driven Supercritical Accretion Disks
http://arxiv.org/abs/astro-ph/0211171

One can also search Google with "supernovae","p-process" or "p-process in supernovae".