Search for scalar diphoton resonances in the mass range 65-600 GeV with the ATLAS detector in pp collision data at √s=8 TeV. Academic Article

Overview

abstract

A search for scalar particles decaying via narrow resonances into two photons in the mass range 65-600 GeV is performed using 20.3 fb(-1) of √s 8 TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches.

authors

Abdel Khalek, S

Agatonovic-Jovin, T

Aguilar-Saavedra, J A

Alconada Verzini, M J

Aleksandrov, I N

Allbrooke, B M M

Alvarez Gonzalez, B

Amaral Coutinho, Y

Amor Dos Santos, S P

Anastopoulos, C

Aperio Bella, L

Argyropoulos, S

Armbruster, A J

Backus Mayes, J

Bannoura, A A E

Barreiro Guimarães da Costa, J

Beauchemin, P H

Belanger-Champagne, C

Benhar Noccioli, E

Benitez Garcia, J A

Bergeaas Kuutmann, E

Bernlochner, F U

Bilbao De Mendizabal, J

Blumenschein, U

Bobrovnikov, V S

Bogdanchikov, A G

Boterenbrood, H

Bouhova-Thacker, E V

Bruckman de Renstrom, P A

Buckingham, R M

Butterworth, J M

Cabrera Urbán, S

Camacho Toro, R

Caminal Armadans, R

Capeans Garrido, M D M

Carrillo-Montoya, G D

Castaneda-Miranda, E

Castillo Gimenez, V

Cavalli-Sforza, M

Chavez Barajas, C A

Chelstowska, M A

Cherkaoui El Moursli, R

Chromek-Burckhart, D

Chwastowski, J J

Conde Muiño, P

Constantinescu, S

Cooper-Sarkar, A M

Cooper-Smith, N J

Cortes-Gonzalez, A

Crépé-Renaudin, S

Crispin Ortuzar, M

Cristinziani, M

Cuhadar Donszelmann, T

Da Cunha Sargedas De Sousa, M J

Dallapiccola, C

Dano Hoffmann, M

Daya-Ishmukhametova, R K

De Vivie De Regie, J B

Deliyergiyev, M

Della Pietra, M

Deviveiros, P O

Di Valentino, D

Dimitrievska, A

Do Valle Wemans, A

Dolgoshein, B A

Duran Yildiz, H

Durglishvili, A

Fakhrutdinov, R M

Farrington, S M

Fassouliotis, D

Fehling-Kaschek, M

Fernandez Perez, S

Ferreira de Lima, D E

Ferretto Parodi, A

Fincke-Keeler, M

Fiolhais, M C N

Fitzgerald, E A

Flores Castillo, L R

Florez Bustos, A C

Fullana Torregrosa, E

Garay Walls, F M

García Navarro, J E

Garcia-Sciveres, M

Gavrilenko, I L

Geich-Gimbel, Ch

Glaysher, P C F

Goblirsch-Kolb, M

publication date

October 20, 2014

published in

Physical review letters Journal

Identity

PubMed ID

25379911

Additional Document Info

volume

113

issue

17