A Search For An Unexpected Asymmetry In The Production Of E Plus My Minus And E Minus My Plus Pairs In Proton Proton Collisions Recorded By The Atlas Detector At Square Root S

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A Search For An Unexpected Asymmetry In The Production Of E Plus My Minus And E Minus My Plus Pairs In Proton Proton Collisions Recorded By The Atlas Detector At Square Root S

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Author : [Study Group] ATLAS Collaboration CERN
language : en
Publisher:
Release Date : 2022

A Search For An Unexpected Asymmetry In The Production Of E Plus My Minus And E Minus My Plus Pairs In Proton Proton Collisions Recorded By The Atlas Detector At Square Root S written by [Study Group] ATLAS Collaboration CERN and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.

Abstract: This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for and pairs to constrain physics processes beyond the Standard Model. It uses of proton-proton collision data recorded at TeV at the LHC. Targeting sources of new physics which prefer final states containing to , the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when , at 95% confidence level. The limit on the coupling reduces to for a mass of 1420 GeV

Measurement Of The Forward Backward Asymmetry Of Z Boson Decays In Electron Positron Pairs With The Atlas Detector In Proton Proton Collisions At Root Out S

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Author : Sebastian König
language : en
Publisher:
Release Date : 2014

Measurement Of The Forward Backward Asymmetry Of Z Boson Decays In Electron Positron Pairs With The Atlas Detector In Proton Proton Collisions At Root Out S written by Sebastian König 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 Measurement Of Forward Backward Charge Asymmetry Of Electron Positron Pairs In Proton Antiproton Collision At 1 8 Tev

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Author : Gregory Francisco Veramendi
language : en
Publisher:
Release Date : 2003

A Measurement Of Forward Backward Charge Asymmetry Of Electron Positron Pairs In Proton Antiproton Collision At 1 8 Tev written by Gregory Francisco Veramendi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present a measurement of the mass dependence of the forward-backward charge asymmetry for e{sup +}e{sup -} pairs resulting from {gamma}*/Z decays with mass M{sub ee}> 40 GeV/c{sup 2}. The Run II data sample consists of 72 pb{sup -1} of data, which was collected by the CDF detector in {bar p}p collisions at {radical}s = 1.96 TeV at the Fermilab Tevatron. The measurement is compared with predictions from the Standard Model.

Measurement Of The Inclusive Z Ee Production Cross Section In Proton Proton Collisions At Sqrt S

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Author : Jeremy S. Werner
language : en
Publisher:
Release Date : 2011

Measurement Of The Inclusive Z Ee Production Cross Section In Proton Proton Collisions At Sqrt S written by Jeremy S. Werner 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.

A Study Of The Process E Superior Plus E Superior Minus Arrow Mu Superior Plus Mu Superior Minus Gamma At Square Root Of S

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Author :
language : en
Publisher:
Release Date : 2000

A Study Of The Process E Superior Plus E Superior Minus Arrow Mu Superior Plus Mu Superior Minus Gamma At Square Root Of 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 2000 with categories.

Longitudinal Double Spin Asymmetry And Cross Section For Inclusivejet Production In Polarized Proton Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2006

Longitudinal Double Spin Asymmetry And Cross Section For Inclusivejet Production In Polarized Proton 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 2006 with categories.

We report a measurement of the longitudinal double-spinasymmetry A_LL and the differential cross section for inclusivemidrapidity jet production in polarized proton collisions at sqrt(s)=200GeV. The cross section data cover transverse momenta 5

Exclusive Neutral Strange Particle Production From Double Pomeron Exchange Produced By Proton Proton Interactions At Radical S

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Author :
language : en
Publisher:
Release Date : 1990

Exclusive Neutral Strange Particle Production From Double Pomeron Exchange Produced By Proton Proton Interactions At Radical 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 1990 with categories.

Data are presented for the first time on exclusive Pomeron-Pomeron interactions which produce a neutral strange and neutral antistrange particle pair in a central system X. In this paper, the system, X, is identified as one of the following neutral combinations; K{sub s}°K{sub s}°, K{sub s}°K{sup {plus minus}}[pi]{sup {minus plus}}, [Lambda]°{bar [Lambda]}°, [Lambda]°{bar [Lambda]}°*. These data were obtained in proton-proton collisions at √s = 62 GeV at the CERN ISR. The triggering systems used to obtain these data are described, followed by a description of the data. The central system mass distributions are presented along with differential mass cross section estimates. A broad enhancement is seen in the K{sub s}°K{sub s}° system at a mass of 1.2 GeV, and is likely to have the quantum numbers J{sup PC} = 0{sup ++}. Total cross section estimates of 1.3 {plus minus} .64 [mu]b in the K2°K{sub s}° system, . 44 {plus minus} .14 [mu]b in the K{sub s}°K{sup {plus minus}}[pi]{sup {minus plus}} system, .20 {plus minus} .14 [mu]b in the {Lambda}°{bar {Lambda}}° system, and .13 {plus minus} .06 [mu]b in the {Lambda}°{bar {Lambda}}°* system are obtained.

The First Determination Of The Proton S Weak Charge Through Parity Violating Asymmetry Measurements In Elastic E P And E Al Scattering

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Author : Katherine E. Myers
language : en
Publisher:
Release Date : 2012

The First Determination Of The Proton S Weak Charge Through Parity Violating Asymmetry Measurements In Elastic E P And E Al Scattering written by Katherine E. Myers 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.