Observation Of Bsup 0 Meson Decay To Alphasub 1sup 1260 Pisup PDF Download
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| Release | : 2004 |
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Download Observation of B[sup 0] Meson Decay to [alpha][sub 1][sup +](1260) [pi][sup -]. Book in PDF, ePub and Kindle
The authors present a preliminary measurement of the branching fraction of the B meson decay B[sup 0] --> [alpha][sup 1][sup +](1260) --> [pi][sup +][pi][sup +][pi][sup -]. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 10[sup 6] B[bar B] pairs produced in e[sup +]e[sup -] annihilation through the [Upsilon](4S) resonance. They find the branching fraction B(B[sup 0] --> [alpha][sub 1][sup +](1260)[pi][sup -]) = (42.6 [+-] 4.2 [+-] 4.1) x 10[sup -6]. The fitted values of the [alpha][sub 1](1260) parameters are m[sub [alpha][sub 1]] = 1.19 [+-] 0.02 GeV/c[sup 2] and [Gamma][sub [alpha][sub 1]] = 312 [+-] 55 MeV/c[sup 2].
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| Total Pages | : 5 |
| Release | : 2004 |
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Download Observation of B° Meson Decay To?1(1260)?− Book in PDF, ePub and Kindle
The authors present a preliminary measurement of the branching fraction of the B meson decay B° -->?1(1260) -->?+?+?−. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 106 B{bar B} pairs produced in e+e− annihilation through the?(4S) resonance. They find the branching fraction B(B° -->?1+(1260)?−) = (42.6 ± 4.2 ± 4.1) x 10−6. The fitted values of the?1(1260) parameters are m{sub {alpha}1} = 1.19 ± 0.02 GeV/c2 and?{sub {alpha}1} = 312 ± 55 MeV/c2.
| Author | : B. Aubert |
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| Total Pages | : 7 |
| Release | : 2006 |
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Download Observation of B0 Meson Decays to A1(1260)+- Pi- Book in PDF, ePub and Kindle
The authors present a measurement of the branching fraction of the decay B{sup 0} {yields} a{sub 1}{sup {+-}}(1260){pi}{sup {-+}} with a{sub 1}{sup {+-}}(1260) {yields} {pi}{sup {-+}}{pi}{sup {+-}}{pi}{sup {+-}}. The data sample corresponds to 218 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. The authors measure the branching fraction {Beta}(B{sup 0} {yields} a{sub 1}{sup {+-}}(1260){pi}{sup {-+}}){Beta}(a{sub 1}{sup {+-}}(1260){yields} {pi}{sup {-+}}{pi}{sup {+-}}{pi}{sup {+-}})=(16.6 {+-} 1.9 {+-} 1.5) x 10{sup -6}, where the first error quoted is statistical and the second is systematic.
