Search for high-mass diphoton states and limits on Randall-Sundrum gravitons at CDF

被引：19

作者：

Aaltonen, T. ^{[1
]}

Abulencia, A.

Adelman, J.

Affolder, T.

Akimoto, T.

Albrow, M. G.

Amerio, S.

Amidei, D.

Anastassov, A.

Anikeev, K.

Annovi, A.

Antos, J.

Aoki, M.

Apollinari, G.

Arisawa, T.

Artikov, A.

Ashmanskas, W.

Attal, A.

Aurisano, A.

Azfar, F.

Azzi-Bacchetta, P.

Azzurri, P.

Bacchetta, N.

Badgett, W.

Barbaro-Galtieri, A.

Barnes, V. E.

Barnett, B. A.

Baroiant, S.

Bartsch, V.

Bauer, G.

Beauchemin, P. -H.

Bedeschi, F.

Behari, S.

Bellettini, G.

Bellinger, J.

Belloni, A.

Benjamin, D.

Beretvas, A.

Beringer, J.

Berry, T.

Bhatti, A.

Binkley, M.

Bisello, D.

Bizjak, I.

Blair, R. E.

Blocker, C.

Blumenfeld, B.

Bocci, A.

Bodek, A.

Boisvert, V.

机构：

[1] Okayama Univ, Okayama 7008530, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 17期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.99.171801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed a search for new particles which decay to two photons using 1.2 fb(-1) of integrated luminosity from p (p) over bar collisions at root s = 1.96 TeV collected using the CDF II detector at the Fermilab Tevatron. We find the diphoton mass spectrum to be in agreement with the standard model expectation, and set limits on the cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits for the graviton mass of 230 GeV/c(2) and 850 GeV/c(2), at the 95% confidence level, for coupling parameters (k=(M) over barP(1)) of 0.01 and 0.1, respectively.

引用

页数：7

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