Measurement Of The Psi 2s Polarization In Pp Collisions At The Square Root Of S

DOWNLOAD

Download Measurement Of The Psi 2s Polarization In Pp Collisions At The Square Root Of S PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of The Psi 2s Polarization In Pp Collisions At The Square Root Of S book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Scientific And Technical Aerospace Reports

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Measurement Of The Psi 2s Polarization In Pp Collisions At The Square Root Of S

DOWNLOAD
Author : Ching-Yuk Paul Ngan
language : en
Publisher:
Release Date : 2001

Measurement Of The Psi 2s Polarization In Pp Collisions At The Square Root Of S written by Ching-Yuk Paul Ngan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

We present a measurement of the polarization of [psi](2S) mesons produced in pp̄ collisions at [the square root of]s = 1.8 TeV with the CDF detector at Fermilab. This measurement is a sensitive test of the calculations based on the Non-relativistic QCD (NRQCD) factorization mechanism, which are able to account for the unexpectedly large cross section for charmonium production in pp̄ collisions (roughly a factor 50 above the Color Singlet Model). These calculations also predict that directly produced charmonia should approach 100% transverse polarization for high transverse momentum of the onium state. We consider [psi](2S) mesons, reconstructed using the decay mode [psi](2S) [right arror] [mu]+ [mu]- in a 110 pb-1 data sample of pp̄ collisions. The polarization of prompt [psi](2S) is extracted to be -0.54 +/- 0.48(stat.) +/- 0.04(syst.) for 9

Energy Research Abstracts

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1989

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Power resources categories.

Government Reports Announcements Index

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987

Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Science categories.

Government Reports Annual Index

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987

Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Government reports announcements & index categories.

Energy Research Abstracts

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1978

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Power resources categories.

High Energy Physics Index

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987

High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Nuclear physics categories.

J Psi And Psi 2s Production In Pp Collisions At Sqrt S

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2012

J Psi And Psi 2s Production In Pp Collisions At Sqrt S 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.

A measurement of the J/psi and psi(2S) production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 inverse picobarns. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt charmonium states, as a function of the meson transverse momentum in several rapidity ranges. In addition, cross sections restricted to the acceptance of the CMS detector are given, which are not affected by the polarization of the charmonium states. The ratio of the differential production cross sections of the two states, where systematic uncertainties largely cancel, is also determined. The branching fraction of the inclusive B to psi(2S) X decay is extracted from the ratio of the non-prompt cross sections to be: BR(B to psi(2S) X) = (3.08 +/- 0.12(stat.+syst.) +/- 0.13(theor.) +/- 0.42(BR[PDG])) 10-̂3.

Cities And Their Vital Systems

DOWNLOAD
Author : Advisory Committee on Technology and Society
language : en
Publisher: National Academies Press
Release Date : 1989

Cities And Their Vital Systems written by Advisory Committee on Technology and Society and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Social Science categories.

Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.

Proceedings

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1975

Proceedings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Lepton interactions categories.