Searches for New Physics in Diphoton Events in {ital p}{ovr {ital p}} Collisions at {radical} (s) =1.8 TeV

Journal Article · Sat Aug 01 00:00:00 EDT 1998 · Physical Review Letters

OSTI ID:656331

Blair, R E; Byrum, K L; Kovacs, E; Kuhlmann, S E; LeCompte, T; Nodulman, L ^[1]; Breccia, L; Brunetti, R; Deninno, M; Fiori, I; Mazzanti, P ^[2]; Behrends, S; Bensinger, J; Blocker, C; Kirsch, L; Lamoureux, J I ^[3]; Bonushkin, Y; Hauser, J; Lindgren, M ^[4]; Amadon, A ; Berryhill, J; Contreras, M; Culbertson, R; Frisch, H; Grosso-Pilcher, C; Hohlmann, M; Nakaya, T ^[5]; Cronin-Hennessy, D; Dittmann, J R; Goshaw, A T; Khazins, D; Kowald, W; Oh, S H ^[6]; Albrow, M G; Atac, M; Beretvas, A; Berge, J P; Biery, K; Binkley, M; Buckley-Geer, E; Byon-Wagner, A; Chlebana, F; Cihangir, S; Cooper, J; DeJongh, F; Demina, R; Derwent, P F; Elias, J E; Erdmann, W; Flaugher, B; Foster, G W; Freeman, J; Geer, S; Hahn, S R; Harris, R M; Incandela, J; Jensen, H; Joshi, U; Kennedy, R D; Kephart, R; Lammel, S; Lewis, J D; Lukens, P; Maeshima, K; Marriner, J P; Miao, T; Mukherjee, A; Nelson, C; Newman-Holmes, C ^[7]; Klimenko, S; Konigsberg, J; Korytov, A; Nomerotski, A ^[8]; Barone, M; Bertolucci, S; Cordelli, M; DellAgnello, S; Giromini, P; Happacher, F; Miscetti, S; Parri, A ^[9]; Clark, A G; Couyoumtzelis, C; Kambara, H ^[10]; Baumann, T; Burkett, K; Franklin, M; Gordon, A; Hamilton, R; Huth, J; others, and

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
3. Brandeis University, Waltham, Massachusetts 02254 (United States)
4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
5. University of Chicago, Chicago, Illinois 60637 (United States)
6. Duke University, Durham, North Carolina 27708 (United States)
7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
8. University of Florida, Gainesville, Florida 32611 (United States)
9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
10. University of Geneva, CH-1211 Geneva 4 (Switzerland)

We have searched for anomalous production of missing E{sub T}thinsp(E/ {sub T}) , jets, leptons (e,thinsp{mu},thinsp{tau}) , b quarks , or additional photons in events containing two isolated, central ({vert_bar}{eta}{vert_bar}{lt}1.0) photons with E{sub T}{gt}12 GeV . The results are consistent with standard model expectations, with the possible exception of one event that has in addition to the two photons a central electron, a high-E{sub T} electromagnetic cluster, and large E/{sub T} . We set limits using two specific supersymmetry scenarios for production of diphoton events with E/{sub T} . {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 656331
• Journal Information: Physical Review Letters, Vol. 81, Issue 9; Other Information: PBD: Aug 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
STANDARD MODEL
JET MODEL
PROTON-ANTIPROTON INTERACTIONS
PARTICLE PRODUCTION
TEV RANGE 01-10
FERMILAB COLLIDER DETECTOR
TRANSVERSE ENERGY
LEPTONS
B QUARKS
PHOTONS
SUPERSYMMETRY
PAIR PRODUCTION
SPARTICLES
QUANTUM CHROMODYNAMICS
INCLUSIVE INTERACTIONS