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Título: | Diffractive dijet production in p̄p collisions at √s=1.96TeV |
Autor: | Aaltonen, T.; Álvarez González, B.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Palencia, Enrique CSIC ORCID; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; CDF Collaboration | Fecha de publicación: | 2012 | Editor: | American Physical Society | Citación: | Physical Review D 86: 032000 (2012) | Resumen: | We report on a study of diffractive dijet production in p̄p collisions at √s=1.96TeV using the CDF II detector at the Fermilab Tevatron p̄p collider. A data sample from 310pb -1 of integrated luminosity collected by triggering on a high transverse energy jet, ETjet, in coincidence with a recoil antiproton detected in a Roman pot spectrometer is used to measure the ratio of single-diffractive to inclusive-dijet event rates as a function of xp ̄ of the interacting parton in the antiproton, the Bjorken-x, xBjp̄, and a Q2(ETjet)2 in the ranges 10 -3<xBjp̄<10 -1 and 102<Q2<104GeV2, respectively. Results are presented for the region of p̄-momentum-loss fraction 0.03<ξ p̄<0.09 and a four-momentum transfer squared t p̄>-4GeV2. The t p̄ dependence is measured as a function of Q2 and xBjp̄ and compared with that of inclusive single diffraction dissociation. We find weak xBjp̄ and Q2 dependencies in the ratio of single diffractive to inclusive event rates, and no significant Q2 dependence in the diffractive t p̄ distributions. © 2012 American Physical Society. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevD.86.032009 | URI: | http://hdl.handle.net/10261/108686 | DOI: | 10.1103/PhysRevD.86.032009 | Identificadores: | doi: 10.1103/PhysRevD.86.032009 issn: 1550-7998 e-issn: 1550-2368 |
Aparece en las colecciones: | (IFCA) Artículos |
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Diffractive dijet.pdf | 1,49 MB | Adobe PDF | Visualizar/Abrir |
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