Search For Baryon Number And Lepton Number Violating Decays Of Lambda Hyperons Using The Clas Detector At Jefferson Laboratory
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Search For Baryon Number And Lepton Number Violating Decays Of Lambda Hyperons Using The Clas Detector At Jefferson Laboratory
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Author :
language : en
Publisher:
Release Date : 2015
Search For Baryon Number And Lepton Number Violating Decays Of Lambda Hyperons Using The Clas Detector At Jefferson Laboratory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We present a search for ten baryon-number violating decay modes of $\Lambda$ hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state ($\Lambda \rightarrow m \ell$) and conserve either the sum or the difference of baryon and lepton number ($B \pm L$). The tenth decay mode ($\Lambda \rightarrow \bar{p}\pi^+$) represents a difference in baryon number of two units and no difference in lepton number. We observe no significant signal and set upper limits on the branching fractions of these reactions in the range $(4-200)\times 10^{-7}$ at the $90\%$ confidence level.
Search For Baryon Number And Lepton Number Violating Decays Of Hyperons Using The Clas Detector At Jefferson Laboratory
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Author :
language : en
Publisher:
Release Date : 2015
Search For Baryon Number And Lepton Number Violating Decays Of Hyperons Using The Clas Detector At Jefferson Laboratory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We present a search for ten baryon-number violating decay modes of ? hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state (? → m?) and conserve either the sum or the difference of baryon and lepton number (? ± L). The tenth decay mode (? → p¯?+) represents a difference in baryon number of two units and no difference in lepton number. Furthermore, we observe no significant signal and set upper limits on the branching fractions of these reactions in the range (4 – 200) x 107 at the 90% confidence level.
Search For The Baryon And Lepton Number Violating Decays Tau To Lambda H
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Author : B. Aubert
language : en
Publisher:
Release Date : 2006
Search For The Baryon And Lepton Number Violating Decays Tau To Lambda H written by B. Aubert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
The authors have searched for the violation of baryon number B and lepton number L in the (B-L)-conserving modes {tau}{sup -} {yields} {bar {Lambda}}{sup 0}{pi}{sup -} and {tau}{sup -} {yields} {bar {Lambda}}{sup 0}K{sup -} as well as the (B-L)-violating modes {tau}{sup -} {yields} {Lambda}{sup 0}{pi}{sup -} and {tau}{sup -} {yields} {Lambda}{sup 0}K{sup -} using 237 fb{sup -1} of data collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} storage ring. They do not observe any signal and determine preliminary upper limits on the branching fractions {Beta}({tau}{sup -} {yields} {bar {Lambda}}{sup 0}{pi}{sup -})
Searches For The Baryon And Lepton Number Violating Decays B 0 Rightarrow Lambda C Ell B Rightarrow Lambda Ell And B Rightarrow Bar Lambda Ell
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Author :
language : en
Publisher:
Release Date : 2011
Searches For The Baryon And Lepton Number Violating Decays B 0 Rightarrow Lambda C Ell B Rightarrow Lambda Ell And B Rightarrow Bar Lambda Ell written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Searches for B mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either [Lambda]{sub c} or [Lambda] and the lepton is a muon or an electron. These decays violate both baryon and lepton number and would be a signature of physics beyond the standard model. No significant signal is observed in any of the decay modes, and upper limits in the range (3.2 - 520) x 10−8 are set on the branching fractions at the 90% confidence level.
Search For Baryon And Lepton Number Violating Z0 Decays Extras
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Author : G. ABBIENDI
language : en
Publisher:
Release Date : 1998
Search For Baryon And Lepton Number Violating Z0 Decays Extras written by G. ABBIENDI and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Lepton And Baryon Number Violation In Particle Physics Astrophysics And Cosmology
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Author : H. V. Klapdor-Kleingrothaus
language : en
Publisher: CRC Press
Release Date : 1999-01-01
Lepton And Baryon Number Violation In Particle Physics Astrophysics And Cosmology written by H. V. Klapdor-Kleingrothaus and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.
Bringing together leading researchers from particle physics, astrophysics, and cosmology, Lepton and Baryon Number Violation in Particle Physics, Astrophysics and Cosmology presents reviews of current theoretical ideas, experimental results, and future perspectives in this topical field. The book covers areas related to baryon number (B) and lepton number (L) violation in particle physics, nuclear physics, rare decays, and cosmology. The main topics include B and L violation and grand unified theories; B and L violation in the early universe, cosmology, and astrophysics; Lepton family number violation; and B and L violation and collider physics.
Search For Lepton Number Violating Processes In B To H L L Decays
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Author :
language : en
Publisher:
Release Date : 2012
Search For Lepton Number Violating Processes In B To H L L Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
We have searched for the lepton-number violating processes B → h−l+l+ with h− = K−/?− and l+ = e+/?+, using a sample of 471 ± 3 million B{bar B} events collected with the BABAR detector at the PEP-II e+e− collider at the SLAC National Accelerator Laboratory. We find no evidence for these decays and place 90% confidence level upper limits on their branching fractions B (B+ →?−e+e+)
Spin And Parity Measurement Of The Lambda 1405 Baryon
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Author :
language : en
Publisher:
Release Date : 2014
Spin And Parity Measurement Of The Lambda 1405 Baryon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
A determination of the spin and parity of the [Lambda](1405) is presented using photoproduction data from the CLAS detector at Jefferson Lab. The reaction [gamma]+p2!++[Lambda](1405) is analyzed in the decay channel Lambda(1405)2!Sigma]++[pi], where the decay distribution to [Sigma]+pi- and the variation of the [Sigma]+ polarization with respect to the [Lambda](1405) polarization direction determines the parity. The [Lambda](1405) is produced, in the energy range 2.55
Paroisse Saint Th Odore De Dompsure Ses Confr Ries
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Author :
language : en
Publisher:
Release Date : 1877
Paroisse Saint Th Odore De Dompsure Ses Confr Ries written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1877 with categories.
Properties Of The Lambda 1405 Measured At Clas
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Author :
language : en
Publisher:
Release Date : 2012
Properties Of The Lambda 1405 Measured At Clas written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The nature of the?(1405), and its place in the baryon spectrum has remained uncertain for decades. Theoretical studies have shown that it may possess strong dynamical components which are not seen in other well-known baryons. Using the CLAS detector system in Hall B at Jefferson Lab, we have measured the photoproduction reaction? + p 2!K?(1405) with high statistics and over different?? decay channels. The reconstructed invariant mass distribution (lineshape) has been measured, as well as the differential cross sections for the?(1405),?(1385), and?(1520). Our analysis method is discussed and our near-final results for the?(1405) lineshape and differential cross section are presented.