Measurement of the differential cross section d sigma/dt in elastic p(p)over-bar scattering at root s=1.96 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
27/07/2012
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We present a measurement of the elastic differential cross section d sigma(p (p) over bar -> p (p) over bar)/dt as a function of the four- momentum-transfer squared t. The data sample corresponds to an integrated luminosity of approximate to 31 nb(-1) collected with the D0 detector using dedicated Tevatron p (p) over bar Collider operating conditions at root s = 1.96 TeV and covers the range 0.26 < vertical bar t vertical bar < 1.2 GeV2. For vertical bar t vertical bar < 0.6 GeV2, d sigma/dt is described by an exponential function of the form Ae(-b vertical bar t vertical bar) with a slope parameter b = 16.86 +/- 0.10(stat) +/- 0.20(syst) GeV-2. A change in slope is observed at vertical bar t vertical bar approximate to 0.6 GeV2, followed by a more gradual vertical bar t vertical bar dependence with increasing values of vertical bar t vertical bar. |
Formato |
12 |
Identificador |
http://dx.doi.org/10.1103/PhysRevD.86.012009 Physical Review D. College Pk: Amer Physical Soc, v. 86, n. 1, p. 12, 2012. 1550-7998 http://hdl.handle.net/11449/42445 10.1103/PhysRevD.86.012009 WOS:000306929400001 WOS000306929400001.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review D |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |