Search for Randall-Sundrum gravitons in the diphoton channel at CDF

We report on a search for new particles in the diphoton channel using a data sample of pp collisions at s=1.96TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4fb-1. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459GeV/c2 and 963GeV/c2, at the 95% confidence level, for coupling parameters (k/MPl) of 0.01 and 0.1, respectively. 2011 American Physical Society.

Aaltonen, T., Alvarez Gonzalez, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., ... Zucchelli, S.

Aaltonen, T||Alvarez Gonzalez, B||Amerio, S||Amidei, D||Anastassov, A||Annovi, A||Antos, J||Apollinari, G||Appel, JA||Apresyan, A||Arisawa, T||Artikov, A||Asaadi, J||Ashmanskas, W||Auerbach, B||Aurisano, A||Azfar, F||Badgett, W||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Barria, P||Bartos, P||Bauce, M||Bauer, G||Bedeschi, F||Beecher, D||Behari, S||Bellettini, G||Bellinger, J||Benjamin, D||Beretvas, A||Bhatti, A||Binkley, M||Bisello, D||Bizjak, I||Bland, KR||Blumenfeld, B||Bocci, A||Bodek, A||Bortoletto, D||Boudreau, J||Boveia, A||Brau, B||Brigliadori, L||Brisuda, A||Bromberg, C||Brucken, E||Bucciantonio, M||Budagov, J||Budd, HS||Budd, S||Burkett, K||Busetto, G||Bussey, P||Buzatu, A||Calancha, C||Camarda, S||Campanelli, M||Campbell, M||Canelli, F||Canepa, A||Carls, B||Carlsmith, D||Carosi, R||Carrillo, S||Carron, S||Casal, B||Casarsa, M||Castro, A||Catastini, P||Cauz, D||Cavaliere, V||Cavalli-Sforza, M||Cerri, A||Cerrito, L||Chen, YC||Chertok, M||Chiarelli, G||Chlachidze, G||Chlebana, F||Cho, K||Chokheli, D

Search for Randall-Sundrum gravitons in the diphoton channel at CDF Academic Article