Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at $\sqrt{s}=8\,\text {TeV} $

• Autor(a) principal: CMS collaboration (2314 authors)
• Data de Publicação: 2016
• Outros Autores: Hollar, Jonathan, Calpas, Betty, Nayak, Aruna, Bargassa, Pedrame, Beirão Da Cruz E Silva, Cristóvão, Di Francesco, Agostino, Faccioli, Pietro, Ferreira Parracho, Pedro Guilherme, Gallinaro, Michele, Leonardo, Nuno, Lloret Iglesias, Lara, Nguyen, Federico, Rodrigues Antunes, Joao, Seixas, Joao, Toldaiev, Oleksii, Vadruccio, Daniele, Varela, Joao, Vischia, Pietro, David Tinoco Mendes, Andre, Silva, Pedro, Musella, Pasquale, Pela, Joao
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Texto Completo: http://dx.doi.org/10.1140/epjc/s10052-015-3853-3; http://hdl.handle.net/10400.26/26915

A measurement is presented of differential cross sections for Higgs boson (H) production in pp collisions at $\sqrt{s}=8$ $\,\text {TeV}$ . The analysis exploits the ${H} \rightarrow {\gamma }{\gamma }$ decay in data corresponding to an integrated luminosity of 19.7 $\,\text {fb}^\text {-1}$ collected by the CMS experiment at the LHC. The cross section is measured as a function of the kinematic properties of the diphoton system and of the associated jets. Results corrected for detector effects are compared with predictions at next-to-leading order and next-to-next-to-leading order in perturbative quantum chromodynamics, as well as with predictions beyond the standard model. For isolated photons with pseudorapidities $|\eta |<2.5$ , and with the photon of largest and next-to-largest transverse momentum ( $p_{\mathrm {T}} ^{\gamma }$ ) divided by the diphoton mass $m_{\gamma \gamma }$ satisfying the respective conditions of $p_{\mathrm {T}} ^{\gamma }/m_{\gamma \gamma }> 1/3$ and ${>}1/4$ , the total fiducial cross section is $32 \pm 10$ $\text {\,fb}$ .