Difference between revisions of "Baryon Contamination Studies"
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+ | Summary of the action plan to include (a) baryon vertex into the CLAS6 - pKK "high mass" PWA.. | ||
+ | |||
+ | Please let me know where I am wrong and if I left something out. | ||
+ | |||
+ | * We decided to study the pK+(K-) channel from g12 data. | ||
+ | |||
+ | * As a fist step we will add the pK- baryon vertices though lambda decays. | ||
+ | |||
+ | * Ron will find us the amplitudes, elastic K-p->pK- going through lambdas | ||
+ | in the mass range of 1.4-2.4 GeV. If he can not find good data/amplitudes we | ||
+ | perhaps need to change to the ppi+pi- channel but we will see... | ||
+ | |||
+ | * We will introduce (add coherently) these amplitudes to our intensity function with | ||
+ | respective coefficients to fit (through our current extended likelihood procedure) | ||
+ | |||
+ | * The normalization integrals will treated as we do now, they factorized out and will | ||
+ | be calculated independently from MC events (we need to check this further I think) | ||
+ | |||
+ | |||
+ | * We will do our fits in mass bins of (m_kk,m_pK) and integrate over t (also to have more events per bin). | ||
+ | We will then need to include an exponential t distribution. The b coefficient of this distribution will be first | ||
+ | guessed from data/literature but will be later part of the fit. | ||
+ | |||
+ | Ok, let me know of your comments, | ||
+ | Carlos presentation of the (g12 pKK data at high mass) is here: | ||
+ | # [https://userweb.jlab.org/~salgado/g12pkk/baryonMeson.pdf] | ||
+ | |||
+ | Adam S. Note on the theory | ||
+ | # [https://userweb.jlab.org/~salgado/g12pkk/Adam_pKK.pdf] | ||
+ | |||
+ | Carlos S. note on the CLAS6 software inlcusion | ||
+ | # [https://userweb.jlab.org/~salgado/g12pkk/Carlos_pKK.pdf] |
Latest revision as of 10:49, 20 June 2013
CLAS6 - pKK
Summary of the action plan to include (a) baryon vertex into the CLAS6 - pKK "high mass" PWA..
Please let me know where I am wrong and if I left something out.
- We decided to study the pK+(K-) channel from g12 data.
- As a fist step we will add the pK- baryon vertices though lambda decays.
- Ron will find us the amplitudes, elastic K-p->pK- going through lambdas
in the mass range of 1.4-2.4 GeV. If he can not find good data/amplitudes we perhaps need to change to the ppi+pi- channel but we will see...
- We will introduce (add coherently) these amplitudes to our intensity function with
respective coefficients to fit (through our current extended likelihood procedure)
- The normalization integrals will treated as we do now, they factorized out and will
be calculated independently from MC events (we need to check this further I think)
- We will do our fits in mass bins of (m_kk,m_pK) and integrate over t (also to have more events per bin).
We will then need to include an exponential t distribution. The b coefficient of this distribution will be first guessed from data/literature but will be later part of the fit.
Ok, let me know of your comments, Carlos presentation of the (g12 pKK data at high mass) is here:
Adam S. Note on the theory
Carlos S. note on the CLAS6 software inlcusion