About: Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have observed exclusive gamma gamma production in proton-antiproton collisions at root s = 1.96 TeV, using data from 1.11 +/- 0.07 fb(-1) integrated luminosity taken by the Run II Collider Detector at Fermilab. We selected events with two electromagnetic showers, each with transverse energy E-T > 2.5 GeV and pseudorapidity \|eta\| < 1.0, with no other particles detected in -7.4 < eta < +7.4. The two showers have similar ET and azimuthal angle separation Delta phi similar to pi; 34 events have two charged particle tracks, consistent with the QED process p<(p)over bar> --> p + e(+)e(-) + (p) over bar by two-photon exchange, while 43 events have no charged tracks. The number of these events that are exclusive pi(0)pi(0) is consistent with zero and is < 15 at 95% C. L. The cross section for p<(p)over bar> --> p + gamma gamma + (p) over bar with \|eta(gamma)\| < 1.0 and E-T(gamma) > 2.5 GeV is 2.48(-0.35)(+0.40)(stat)(-0.51)(+0.40)(syst) pb. We have observed exclusive gamma gamma production in proton-antiproton collisions at root s = 1.96 TeV, using data from 1.11 +/- 0.07 fb(-1) integrated luminosity taken by the Run II Collider Detector at Fermilab. We selected events with two electromagnetic showers, each with transverse energy E-T > 2.5 GeV and pseudorapidity \|eta\| < 1.0, with no other particles detected in -7.4 < eta < +7.4. The two showers have similar ET and azimuthal angle separation Delta phi similar to pi; 34 events have two charged particle tracks, consistent with the QED process p<(p)over bar> --> p + e(+)e(-) + (p) over bar by two-photon exchange, while 43 events have no charged tracks. The number of these events that are exclusive pi(0)pi(0) is consistent with zero and is < 15 at 95% C. L. The cross section for p<(p)over bar> --> p + gamma gamma + (p) over bar with \|eta(gamma)\| < 1.0 and E-T(gamma) > 2.5 GeV is 2.48(-0.35)(+0.40)(stat)(-0.51)(+0.40)(syst) pb. (en)
Title	Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV (en)
skos:prefLabel	Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV (en)
skos:notation	RIV/68378271:_____/12:00388734!RIV13-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC527), Z(AV0Z10100502)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Lysák, Roman
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	155529
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00388734
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electromagnetic showers; exchange two-photon; quantum electrodynamics; photon transverse energy; anti-p p exclusive reaction; rapidity; CDF (en)
http://linked.open.../riv/klicoveSlovo	CDF rapidity anti-p p exclusive reaction electromagnetic showers exchange two-photon photon transverse energy quantum electrodynamics
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7A32F6536511]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	475 (xsd:int)
http://linked.open...vavai/riv/projekt	Center for Particle Physics
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	108
http://linked.open...iv/tvurceVysledku	Aaltonen, T. Gonzalez, B. A. Lysák, Roman Albrow, M. G.
http://linked.open...ain/vavai/riv/wos	000300576000006
http://linked.open...n/vavai/riv/zamer	Jevy fyziky elementárních částic přesahující standardní model
issn	0031-9007
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevLett.108.081801
is http://linked.open...avai/riv/vysledek of	Observation of exclusive gamma gamma production in ppˉ collisions at s=1.96 TeV

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software