← Back to cohort
Search for New Physics in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mtext mathvariant="normal">Lepton</mml:mtext><mml:mo>+</mml:mo><mml:mtext mathvariant="normal">Photon</mml:mtext><mml:mo>+</mml:mo><mml:mi>X</mml:mi></mml:math>Events with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>305</mml:mn><mml:mtext> </mml:mtext><mml:msup><mml:mi>pb</mml:mi><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:math>of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>
A. Abulencia, D. Acosta, J. Adelman, A. A. Affolder, T. Akimoto, M. G. Albrow, D. Ambrose, S. Amerio, D. Amidei, A. Anastassov, K. Anikeev, A. Annovi, J. Antoš, M. Aoki, G. Apollinari, J-F. Arguin, T. Arisawa, A. Artikov, W. Ashmanskas, A. Attal, F. Azfar, P. Azzi, P. Azzurri, H. Bachacou, W. Badgett, A. Barbaro‐Galtieri, V. E. Barnes, B. A. Barnett, S. Baroiant, V. Bartsch, G. Bauer, F. Bedeschi, S. Behari, S. Belforte, G. Bellettini, J. Bellinger, A. Belloni, E. Ben Haim, D. Benjamin, A. Beretvas, J. Beringer, T. Berry, A. Bhatti, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, B. Blumenfeld, A. Bocci, A. Bodek, V. Boisvert, G. Bolla, A. Bolshov, D. Bortoletto, J. Boudreau, A. Boveia, B. Brau, C. Bromberg, E. Brubaker, J. Budagov, H. S. Budd, S. Budd, K. Burkett, G. Busetto, P. Bussey, K. L. Byrum, M. Campanelli, M. Campbell, F. Canelli, A. Canepa, D. Carlsmith, R. Carosi, S. Carron, M. Casarsa, A. Castro, P. Catastini, D. Cauz, F. Šforza, A. Cerri, S. Chang, J. D. Chapman, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, I. Cho, K. Cho, D. Chokheli, J. P. Chou, P.-H. Chu, S. H. Chuang, K. Chung, W. H. Chung, Y. S. Chung, M. Ciljak, C. I. Ciobanu, M. A. Ciocci, A. Clark, D. Clark, M. Coca, G. Compostella, M. E. Convery, J. Conway, B. D. Cooper, K. Copic, M. Cordelli, G. Cortiana, F. Cresciolo, A. Cruz, C. Cuenca Almenar, J. Cuevas, R. Culbertson, D. Cyr, S. DaRonco, S. D’Auria, M. D’Onofrio, D. Dagenhart, P. de Barbaro, S. De Cecco, A. Deisher, G. De Lentdecker, M. Dell’Orso, F. Delli Paoli, S. Demers, L. Demortier, J. Deng, M. Deninno, D. De Pedis, P. F. Derwent, C. Dionisi, J. Dittmann, P. DiTuro, C. Dörr, S. Donati, M. Donegà, P. Dong, J. Donini, T. Dorigo, S. Dube, K. Ebina, J. Efron, J. Ehlers, R. Erbacher, D. Errede, S. Errede, R. Eusebi, H. C. Fang, S. M. Farrington, I. Fedorko, W. Fedorko, R. G. Feild, M. Feindt, J. P. Fernández, R. D. Field, G. Flanagan, L. R. Flores Castillo, A. Foland, S. Forrester, G. W. Foster, M. Franklin, J. Freeman, H. Frisch, I. Furic, M. Gallinaro, J. Galyardt, F. García, M. Garcia Sciveres, A. F. Garfinkel, C. Gay, H. Gerberich, D. W. Gerdes, S. Giagu, P. Giannetti, S. M. Gibson, K. Gibson, C. M. Ginsburg, N. Giokaris, K. Giolo, M. P. Giordani, P. Giromini, M. Giunta, G. Giurgiu, V. Glagolev, D. Glenzinskí, M. Gold, N. Goldschmidt, J. Goldstein, G. Gómez, G. Gomez Ceballos, M. Goncharov, I. Gorelov, A. T. Goshaw, Y. Gotra, K. Goulianos, A. Gresele, M. Griffiths, S. Grinstein, C. Grosso-Pilcher, U. Grundler, J. Guimarães da Costa, Z. Gunay-Unalan, C. Haber, S. R. Hahn, K. Hahn, E. Halkiadakis, A. Hamilton, B.-Y. Han, J. Y. Han, R. Handler, F. Happacher, K. Hara, M. Hare, S. Harper, R. Harr, R. M. Harris, K. Hatakeyama, C. P. Hays, A. Heijboer, B. Heinemann, J. J. Heinrich, M. Herndon, D. Hidas, C. Hill, D. Hirschbuehl, A. Höcker, A. Holloway, S. Hou, M. Houlden, S.-C. Hsu, T. B. Huffman, R. E. Hughes, J. Huston, J. Incandela, G. Introzzi, M. Iori, Y. Ishizawa, A. Ivanov, B. Iyutin, E. James, D. Jang, B. Jayatilaka, D. Jeans, H. Jensen, E. J. Jeon, S. Jindariani, M. Jones, K. K. Joo, S. Y. Jun, T. R. Junk, T. Kamon, J. S. Kang, P. E. Karchin, Y. Kato, Y. Kemp, R. Kephart, U. Kerzel, V. Khotilovich, B. Kilminster, D. H. Kim, H. S. Kim, J. E. Kim, M. J. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, S. Klimenko, M. Klute, B. Knuteson, B. R. Ko, H. Kobayashi, K. Kondo, D. J. Kong, J. Konigsberg, A. Korytov, A. V. Kotwal, A. Kovalev, A. Kraan, J. Kraus, Ilya Kravchenko, M. Kreps, J. Kroll, N. Krumnack, M. Kruse, V. Krutelyov, S. Kuhlmann, Y. Kusakabe, S. Kwang, A. T. Laasanen, S. Lai, S. Lami, S. Lammel, M. Lancaster, R. L. Lander, K. Lannon, A. Lath, G. Latino, I. Lazzizzera, T. LeCompte, J. Lee, J. Lee, Y. J. Lee, S. W. Lee, R. Lefèvre, N. Leonardo, S. Leone, S. Levy, J. D. Lewis, C. Lin, M. Lindgren, E. Lipeles, T. M. Liss, A. Lister, D. O. Litvintsev, T. Liu, A. Loginov, M. Loreti, P. Loverre, R.-S. Lu, D. Lucchesi, P. Lujan, P. Lukens, G. Lungu, L. Lyons, J. Lys, R. Lysák, E. Lytken, P. Mack, D. MacQueen, R. Madrak, K. Maeshima, T. Mäki, P. Maksimovic, S. Malde, G. Manca, F. Margaroli, R. Marginean, C. P. Marino, A. Martin, M. Martı́nez, T. Maruyama, P. Mastrandrea, H. Matsunaga, M. E. Mattson, R. Mazini, P. Mazzanti, K. S. McFarland, P. McIntyre, R. McNulty, A. Mehta, S. Menzemer, A. Menzione, P. Merkel, C. Mesropian, A. Messina, M. von der Mey, T. Miao, N. Miladinovic, J. Miles, R. Miller, J. S. Miller, C. Mills, M. Milnik, R. Miquel, G. Mitselmakher, A. Miyamoto, N. Moggi, B. Mohr, R. W. Moore, M. J. Morello, P. Movilla Fernandez, J. Mülmenstädt, A. Mukherjee, T. Müller, R. Mumford, P. Murat, J. Nachtman, J. Naganoma, S. Nahn, I. Nakano, A. Napier, D. Naumov, V. Necula, C. Neu, M. S. Neubauer, J. Nielsen, T. Nigmanov, L. Nodulman, O. Norniella, E. Nurse, T. Ogawa, S. H. Oh, Y. D. Oh, T. Okusawa, R. Oldeman, R. Orava, K. Österberg, C. Pagliarone, R. Paoletti, V. Papadimitriou, A. A. Paramonov, B. Parks, S. Pashapour, J. Patrick, G. Pauletta, M. Paulini, C. Paus, D. E. Pellett, A. Penzo, T. J. Phillips, G. Piacentino, L. Pinera, K. Pitts, C. Plager, L. Pondrom, X. Portell, O. Poukhov, N. Pounder, F. Prakoshyn, A. Pronko, J. Proudfoot, F. Ptohos, G. Punzi, J. Pursley, J. Rademacker, A. Rahaman, A. Y. Rakitin, S. Rappoccio, F. Ratnikov, B. Reisert, V. Reković, N. van Remortel, P. Renton, M. Rescigno, S. Richter, F. Rimondi, L. Ristori, W. J. Robertson, A. Robson, T. Rodrigo, E. Rogers, S. Rolli, R. Roser, M. Rossi, R. Rossin, C. Rott, A. Ruiz-Jimeno, J. Russ, V. Rusu, H. Saarikko, S. Sabik, A. Safonov, W. K. Sakumoto, G. Salamanna, O. Saltó, D. Saltzberg, C. Sánchez, L. Santi, S. Sarkar, L. Sartori, K. Satô, P. Savard, A. Savoy-Navarro, T. Scheidle, P. Schlabach, E. E. Schmidt, M. P. Schmidt, M. Schmitt, Thomas Schwarz, L. Scodellaro, A. L. Scott, A. Scribano, F. Scuri, A. Sedov, S. Seidel, Y. Seiya, A. Semenov, L. Sexton-Kennedy, I. Sfiligoi, M. Shapiro, T. Shears, P. F. Shepard, D. Sherman, M. Shimojima, M. Shochet, Y. Shon, I. Shreyber, A. Sidoti, P. Sinervo, A. N. Sisakyan, J. Sjölin, A. Skiba, A. J. Slaughter, K. Śliwa, J. R. Smith, F. D. Snider, R. Snihur, M. Söderberg, A. Soha, S. Somalwar, V. Sorı́n, J. Spalding, M. Spezziga, F. Spinella, T. Spreitzer, P. Squillacioti, M. M. Stanitzki, A. Staveris-Polykalas, R. St. Denis, B. Stelzer, O. Stelzer-Chilton, D. Stentz, J. Strologas, D. Stuart, J. S. Suh, A. Sukhanov, K. Sumorok, H. Sun, T. Suzuki, A. Taffard, R. Takashima, Y. Takeuchi, K. Takikawa, M. Tanaka, R. Tanaka, N. Tanimoto, M. Tecchio, P. K. Teng, K. Terashi, S. Tether, J. Thom, A. S. Thompson, E. Thomson, P. Tipton, V. Tiwari, S. Tkaczyk, D. Toback, S. Tokár, K. Tollefson, T. Tomura, D. Tonelli, M. Tönnesmann, S. Torre, D. Torretta, S. Tourneur, W. Trischuk, Ryosuke Tsuchiya, S. Tsuno, N. Turini, F. Ukegawa, T. Unverhau, S. Uozumi, D. Usynin, A. Vaiciulis, S. Vallecorsa, A. Varganov, E. Vataga, G. Velev, G. Veramendi, V. Veszprémi, R. Vidal, I. Vila, T. Vine, I. Vollrath, I. Volobouev, M. Volpi, F. Würthwein, P. Wagner, R. G. Wagner, R. L. Wagner, W. Wagner, R. Wallny, T. Walter, Z. Wan, S. M. Wang, A. Warburton, S. Waschke, D. Waters, W. C. Wester, B. Whitehouse, D. Whiteson, A. B. Wicklund, E. Wicklund, G. Williams, H. H. Williams, P. Wilson, B. L. Winer, P. Wittich, S. Wolbers, C. Wolfe, T. Wright, X. Wu, S. M. Wynne, A. Yagil, K. Yamamoto, J. Yamaoka, T. Yamashita, C. Yang, U. K. Yang, Yi-Lin Yang, W.-M. Yao, G. P. Yeh, J. Yoh, K. Yorita, T. Yoshida, G. B. Yu, I. Yu, S. S. Yu, J. C. Yun, L. Zanello, A. Zanetti, I. Zaw, F. Zetti, X. Zhang, J. Zhou, S. Zucchelli
Bibliographic record
VenuePhysical Review Letters · 2006
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsMcGill UniversityInstitute of Particle PhysicsUniversity of Toronto
FundersScience and Technology Facilities Council
KeywordsPhysicsComputer science
Abstract
We present results of a search for anomalous production of events containing a charged lepton ($\ensuremath{\ell}$, either $e$ or $\ensuremath{\mu}$) and a photon ($\ensuremath{\gamma}$), both with high transverse momentum, accompanied by additional signatures $X$, including missing transverse energy (${\mathrm{E\ensuremath{\llap{\not\;}}}}_{T}$) and additional leptons and photons. We use the same selection criteria as in a previous CDF search but with a substantially larger data set, $305\text{ }\mathrm{p}{\mathrm{b}}^{\ensuremath{-}1}$, a $p\overline{p}$ collision energy of 1.96 TeV, and the CDF II detector. We find 42 $\ensuremath{\ell}\ensuremath{\gamma}{\mathrm{E\ensuremath{\llap{\not\;}}}}_{T}$ events versus an expectation of $37.3\ifmmode\pm\else\textpm\fi{}5.4$ events. We observe 31 $\ensuremath{\ell}\ensuremath{\ell}\ensuremath{\gamma}+X$ events versus an expectation of $23.0\ifmmode\pm\else\textpm\fi{}2.7$ events. We find no events similar to the run I $ee\ensuremath{\gamma}\ensuremath{\gamma}{\mathrm{E\ensuremath{\llap{\not\;}}}}_{T}$ event.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.438
Threshold uncertainty score0.801
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.003 |
| Bibliometrics | 0.005 | 0.005 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.008 | 0.008 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.438 | 0.254 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
Opus teacher head0.019
GPT teacher head0.258
Teacher spread0.239 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
Study designBench or experimental
Domainnot available
GenreEmpirical
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".
Quick stats
Citations8
Published2006
Admission routes1
Has abstractyes