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Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions
We look at methods to determine the weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi$ and $K\pi$ decays within the perturbative QCD approach. We obtain quite interesting bounds on $\phi_2$ and $\phi_3$ from experimental measurement in B-factory: $55^o \leq \phi_2 \leq 100^o$ and $51^o \leq \phi_...
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| Lenguaje: | eng |
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CERN
2002
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| Acceso en línea: | https://dx.doi.org/10.5170/CERN-2003-002-corr.251 http://cds.cern.ch/record/578900 |
| _version_ | 1780899425019756544 |
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| author | Keum, Yu Y |
| author_facet | Keum, Yu Y |
| author_sort | Keum, Yu Y |
| collection | CERN |
| description | We look at methods to determine the weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi$ and $K\pi$ decays within the perturbative QCD approach. We obtain quite interesting bounds on $\phi_2$ and $\phi_3$ from experimental measurement in B-factory: $55^o \leq \phi_2 \leq 100^o$ and $51^o \leq \phi_3 \leq 129^o$. Specially we predict the possibility of large direct CP violation effect in $B^0 \to \pi^{+}\pi^{-} (23\pm7 %)$ decay. |
| id | cern-578900 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| publisher | CERN |
| record_format | invenio |
| spelling | cern-5789002019-09-30T06:29:59Zdoi:10.5170/CERN-2003-002-corr.251http://cds.cern.ch/record/578900engKeum, Yu YDetermination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directionsParticle Physics - PhenomenologyWe look at methods to determine the weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi$ and $K\pi$ decays within the perturbative QCD approach. We obtain quite interesting bounds on $\phi_2$ and $\phi_3$ from experimental measurement in B-factory: $55^o \leq \phi_2 \leq 100^o$ and $51^o \leq \phi_3 \leq 129^o$. Specially we predict the possibility of large direct CP violation effect in $B^0 \to \pi^{+}\pi^{-} (23\pm7 %)$ decay.CERNhep-ph/0209002DPNU-2002-28oai:cds.cern.ch:5789002002-09-02 |
| spellingShingle | Particle Physics - Phenomenology Keum, Yu Y Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title | Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title_full | Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title_fullStr | Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title_full_unstemmed | Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title_short | Determination of weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi,K\pi$ in the pQCD method: future directions |
| title_sort | determination of weak phases $\phi_2$ and $\phi_3$ from $b \to \pi\pi,k\pi$ in the pqcd method: future directions |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.5170/CERN-2003-002-corr.251 http://cds.cern.ch/record/578900 |
| work_keys_str_mv | AT keumyuy determinationofweakphasesphi2andphi3frombtopipikpiinthepqcdmethodfuturedirections |