Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The $\eta$ meson provides a laboratory to study isospin violation and search for new flavor-conserving sources of C and CP violation with a sensitivity approaching $10{̂-6}$ of the isospin-conserving strong amplitude. Some of the most interesting rare $\eta$ decays are the neutral modes, yet the effective loss of photons from the relatively common decay $\eta \rightarrow 3\pi0̂ \rightarrow 6\gamma$ (33$\%$) has largely limited the sensitivity for decays producing 3-5$\gamma$'s. Particularly important relevant branches include the highly suppressed $\eta \rightarrow \pi0̂ 2\gamma \rightarrow 4\gamma$, which provides a rare window on testing models of $O(p6̂)$ contributions in ChPTh, and $\eta \rightarrow 3\gamma$ and $\eta \rightarrow 2\pi0̂ \gamma \rightarrow 5\gamma$ which provide direct constraints on C violation in flavor-conserving processes. The substitution of lead tungstate in the forward calorimeter of the GluEx setup in Jefferson Lab's new Hall D would allow dramatically improved measurements. The main niche of this facility, which we call the JLab Eta Factory (JEF), would be $\eta$ decay neutral modes. However, this could likely be expanded to rare $\eta'(958)$ decays for low energy QCD studies as well as $\eta$ decays involving muons for new physics searches.
Physics and Outlook for Rare, All-neutral Eta Decays
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The $\eta$ meson provides a laboratory to study isospin violation and search for new flavor-conserving sources of C and CP violation with a sensitivity approaching $10{̂-6}$ of the isospin-conserving strong amplitude. Some of the most interesting rare $\eta$ decays are the neutral modes, yet the effective loss of photons from the relatively common decay $\eta \rightarrow 3\pi0̂ \rightarrow 6\gamma$ (33$\%$) has largely limited the sensitivity for decays producing 3-5$\gamma$'s. Particularly important relevant branches include the highly suppressed $\eta \rightarrow \pi0̂ 2\gamma \rightarrow 4\gamma$, which provides a rare window on testing models of $O(p6̂)$ contributions in ChPTh, and $\eta \rightarrow 3\gamma$ and $\eta \rightarrow 2\pi0̂ \gamma \rightarrow 5\gamma$ which provide direct constraints on C violation in flavor-conserving processes. The substitution of lead tungstate in the forward calorimeter of the GluEx setup in Jefferson Lab's new Hall D would allow dramatically improved measurements. The main niche of this facility, which we call the JLab Eta Factory (JEF), would be $\eta$ decay neutral modes. However, this could likely be expanded to rare $\eta'(958)$ decays for low energy QCD studies as well as $\eta$ decays involving muons for new physics searches.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The $\eta$ meson provides a laboratory to study isospin violation and search for new flavor-conserving sources of C and CP violation with a sensitivity approaching $10{̂-6}$ of the isospin-conserving strong amplitude. Some of the most interesting rare $\eta$ decays are the neutral modes, yet the effective loss of photons from the relatively common decay $\eta \rightarrow 3\pi0̂ \rightarrow 6\gamma$ (33$\%$) has largely limited the sensitivity for decays producing 3-5$\gamma$'s. Particularly important relevant branches include the highly suppressed $\eta \rightarrow \pi0̂ 2\gamma \rightarrow 4\gamma$, which provides a rare window on testing models of $O(p6̂)$ contributions in ChPTh, and $\eta \rightarrow 3\gamma$ and $\eta \rightarrow 2\pi0̂ \gamma \rightarrow 5\gamma$ which provide direct constraints on C violation in flavor-conserving processes. The substitution of lead tungstate in the forward calorimeter of the GluEx setup in Jefferson Lab's new Hall D would allow dramatically improved measurements. The main niche of this facility, which we call the JLab Eta Factory (JEF), would be $\eta$ decay neutral modes. However, this could likely be expanded to rare $\eta'(958)$ decays for low energy QCD studies as well as $\eta$ decays involving muons for new physics searches.
Rare Decays of Neutral [pi] and [eta]
Phenomenology of Some Rare and Forbidden. Eta.-decays
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
We discuss the contribution from possible new physics to the decays? 2!??−,? 2!e+e−,? 2!?e and???e, and assess the sensitivities required for experimental studies of these decays to extend our knowledge about the new interactions. 61 refs.
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
We discuss the contribution from possible new physics to the decays? 2!??−,? 2!e+e−,? 2!?e and???e, and assess the sensitivities required for experimental studies of these decays to extend our knowledge about the new interactions. 61 refs.
Rare decays of neutral pi and eta
Neutral Decays of the [eta] Meson
Author: Alvin Sheldon Kanofsky
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
Book Description
Neutral Decays of the [eta]0 Meson
High Energy Physics Index
The Grace of Kings
Author: Ken Liu
Publisher: Simon and Schuster
ISBN: 1481424297
Category : Fiction
Languages : en
Pages : 656
Book Description
One of the Time 100 Best Fantasy Books Of All Time Two men rebel together against tyranny—and then become rivals—in this first sweeping book of an epic fantasy series from Ken Liu, recipient of Hugo, Nebula, and World Fantasy awards. Hailed as one of the best books of 2015 by NPR. Wily, charming Kuni Garu, a bandit, and stern, fearless Mata Zyndu, the son of a deposed duke, seem like polar opposites. Yet, in the uprising against the emperor, the two quickly become the best of friends after a series of adventures fighting against vast conscripted armies, silk-draped airships, and shapeshifting gods. Once the emperor has been overthrown, however, they each find themselves the leader of separate factions—two sides with very different ideas about how the world should be run and the meaning of justice. Fans of intrigue, intimate plots, and action will find a new series to embrace in the Dandelion Dynasty.
Publisher: Simon and Schuster
ISBN: 1481424297
Category : Fiction
Languages : en
Pages : 656
Book Description
One of the Time 100 Best Fantasy Books Of All Time Two men rebel together against tyranny—and then become rivals—in this first sweeping book of an epic fantasy series from Ken Liu, recipient of Hugo, Nebula, and World Fantasy awards. Hailed as one of the best books of 2015 by NPR. Wily, charming Kuni Garu, a bandit, and stern, fearless Mata Zyndu, the son of a deposed duke, seem like polar opposites. Yet, in the uprising against the emperor, the two quickly become the best of friends after a series of adventures fighting against vast conscripted armies, silk-draped airships, and shapeshifting gods. Once the emperor has been overthrown, however, they each find themselves the leader of separate factions—two sides with very different ideas about how the world should be run and the meaning of justice. Fans of intrigue, intimate plots, and action will find a new series to embrace in the Dandelion Dynasty.
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1430
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1430
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Dynamics of the Standard Model
Author: John F. Donoghue
Publisher: Cambridge University Press
ISBN: 1009291009
Category : Science
Languages : en
Pages : 599
Book Description
This 2014 edition, now OA, provides a detailed and practical account of the Standard Model of particle physics.
Publisher: Cambridge University Press
ISBN: 1009291009
Category : Science
Languages : en
Pages : 599
Book Description
This 2014 edition, now OA, provides a detailed and practical account of the Standard Model of particle physics.