30 Jun 2010 - Main.AdrianBevan

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< < | The oscillation frequency, which is related to the mass difference between the light and the heavy mass eigenstates of the system, is proportional, in the Standard Model, to . Neglecting terms giving small contributions, is independent of and . Instead, the ratio is proportional to and and the advantage of using this ratio instead of only is that the ratio is expected to be better determined from the theory than the individual quantities entering its expression. The measurement of gives a similar constraint as : | |||||||

> > | The oscillation frequency, which is related to the mass difference between the light and the heavy mass eigenstates of the system, is proportional to in the Standard Model. Neglecting terms giving small contributions, is independent of and . Instead, the ratio is proportional to and and the advantage of using this ratio instead of only is that the ratio is expected to be better determined from the theory than the individual quantities entering its expression. The measurement of gives a similar constraint as : | |||||||

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< < | In practice a problem arise in the (possible) use of the information from twice in the fit: in the constraint itself and in the ratio . The correlation has to be taken into account. It should be remembered that alone would give a constraint on and so . It should be also considered that due to the error coming from chiral extrapolations the quantities which are best known and which are effectively calculated are and while is derived from the other two. For this reason we write the constraints in the following way : | |||||||

> > | In practice a problem arises in the (possible) use of the information from twice in the fit: in the constraint itself and in the ratio . The correlation has to be taken into account. One should recall that alone would give a constraint on and so . It should also be considered that due to the error coming from chiral extrapolations the quantities which are best known and which are effectively calculated are and while is derived from the other two. For this reason we write the constraints in the following way : | |||||||

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- Set plot = DeltaMsRhoEta?
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EPS - PDF - PNG - JPG - GIF | |||||||

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EPS - PDF - PNG - JPG - GIF | |||||||

09 May 2010 - Main.AdminUser

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[EPS format] [JPG format] | |||||||

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<-- - Set plot = DeltaMsRhoEta?
EPS - PDF - PNG - JPG - GIF | |||||||

04 Apr 2010 - Main.VincenzoVagnoni

02 Apr 2010 - Main.VincenzoVagnoni

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< < | -- VincenzoVagnoni - 01 Apr 2010 | |||||||

> > |
The oscillation frequency, which is related to the mass difference between the light and the heavy mass eigenstates of the system, is proportional, in the Standard Model, to . Neglecting terms giving small contributions, is independent of and . Instead, the ratio is proportional to and and the advantage of using this ratio instead of only is that the ratio is expected to be better determined from the theory than the individual quantities entering its expression. The measurement of gives a similar constraint as : |

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