![Scalar Mesons and Kaons in [empty Set] Radiative Decay and Their Implications for Studies of CP Violation at DA[empty Set]NE PDF](https://books.google.com/books/content/images/frontcover/ZN16HAAACAAJ?fife=w150-h200)
Author: N. BrownPublisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Scalar Mesons and Kaons in [empty Set] Radiative Decay and Their Implications for Studies of CP Violation at DA[empty Set]NE
![Scalar Mesons and Kaons in [empty Set] Radiative Decay and Their Implications for Studies of CP Violation at DA[empty Set]NE PDF](https://books.google.com/books/content/images/frontcover/ZN16HAAACAAJ?fife=w80-h100)
Author: N. BrownScalar Mesons and Kaons in O Radiative Decay and Their Implications for Studies of CP Violation at DAoNE
Author: N. BrownScalar mesons and kaons in #phi# radiative decay and their implications for studies of CP violation at DA#phi#NE.
Author: N. BrownPublisher:
ISBN:
Category : Nuclear reactions
Languages : en
Pages :
Book Description
Scalar Mesons in Ø Radiative Decay: Their Implications for Spectroscopy and for Studies of CP Violation at Ø Factories
Author: Nathan IsgurScalar Mesons in Phi Radiative Decay
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Book Description
Existing predictions for the branching ratio for phi -> KK(sub)gamma ma phi -> S(sub)gamma (where S denotes one of the scalar mesons f(sub)0(975) and alpha(sub)0(980)) vary by several orders of magnitude. As a byproduct we find that the branching ratio for phi -> K^0K^0(sub)gamma is
Study of CP Violation in Dalitz-Plot Analyses of B-Meson Decays to Three Kaons
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 295
Book Description
The Standard Model (SM) explains CP violation in terms of the CKM matrix. The BABAR experiment was designed mainly to test the CKM model in B decays. B decays that proceed through b → s loop diagrams, of which B → KKK decays are an example, are sensitive to new physics effects that could lead to deviations from the CKM predictions for CP violation. We present studies of CP violation in the decays B+ → K+K-K+, B+ → KS0KS0K+, and B0 → K+K-KS0, using a Dalitz plot amplitude analysis. These studies are based on approximately 470 million B$\bar{B}$ decays collected by BABAR at the PEP-II collider at SLAC. We perform measurements of time-dependent CP violation in B0 → K+K-KS0, including B0 → [Phi]KS0. We measure a CP-violating phase [beta]eff ([Phi]KS0) = 0.36 ± 0.11 ± 0.04 rad., in agreement with the SM. This is the world's most precise measurement of this quantity. We also measure direct CP asymmetries in all three decay modes, including the direct CP asymmetry ACP ([Phi]K+) = (12.8 ± 4.4 ± 1.3)%, which is 2.8 sigma away from zero. This measurement is in tension with the SM, which predicts an asymmetry of a few percent. We also study the resonant and nonresonant features in the B → KKK Dalitz plots. We find that the hypothetical scalar fX(1500) resonance, introduced by prior analyses to explain an unknown peak in the mKK spectrum, cannot adequately describe the data. We conclude instead that the fX(1500) can be explained as the sum of the f0(1500), f'2(1525), and f0(1710) resonances, removing the need for the hypothetical fX(1500). We also find that an exponential nonresonant model, used by previous analyses to describe the broad nonresonant feature seen in B → KKK decays, cannot fully model the data. We introduce a new nonresonant model that contains more free parameters, allows for phase motion, and contains both S-wave and P-wave components.
CP Violation in the Hadronic Ks Meson Decays
Author: Michał SilarskiPublisher: LAP Lambert Academic Publishing
ISBN: 9783659382581
Category :
Languages : en
Pages : 92
Book Description
Discrete symmetries as parity P, charge conjugation C and time reversal T, as well as their combinations such as CP and CPT play a fundamental role in particle physics. The CP symmetry violation was discovered unexpectedly in 1964 during the regeneration studies of the neutral K mesons, and result in a far-reaching consequences. In the framework of the Standard Model it implies the existence of the third generation of quarks. Moreover, it is a very important mechanism which could have an essential contribution to the asymmetry between matter and antimatter in the Universe. Parameters describing CP violation in neutral kaon decays were measured with a good precision and at present the main experimental effort is focused on studies of the neutral B and D meson systems. However, there are still several interesting open issues in the kaon physics, like rare Ks meson decays. This work is focused on the measurement of the rare CP violating Ks 3 0 decay branching ratio based on the data sample gathered with the KLOE detector operating at the -factory DA NE in the Italian National Center for Nuclear Physics in Frascati.
Searches for Cp Violation in Charmed Meson Decays
Author: Hamish GordonPublisher:
ISBN: 9783319070681
Category :
Languages : en
Pages : 176
Book Description
Study of Scalar Mesons and Related Radiative Decays
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
After a brief review of the puzzling light scalar meson sector of QCD, a brief summary will be given of a paper concerning radiative decays involving the light scalars. There, a simple vector meson dominance model is constructed in an initial attempt to relate a large number of the radiative decays involving a putative scalar nonet to each other. As an application it is illustrated why a[sub 0](980)-f[sub 0](980) mixing is not expected to greatly alter the f[sub 0]/a[sub 0] production ratio for radiative[phi] decays.
Measurements of CP-violating Asymmetries and Branching Fractions in the Decays of B Mesons to Charged Pions and Kaons at the Babar Detector
Author: Morris Nicholas DanielsonPublisher:
ISBN:
Category :
Languages : en
Pages : 286
Book Description