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190 results on '"N. Sotnikova"'

1. Placental site trophoblastic disease in practice of gynecologist (case report).

Author

Igor E. Fadeev, Tatiana N. Sotnikova, Еvgenii A. Bruzgin, Tatiana N. Poletova, and Tatiana V. Polushkina

Subjects
intermediate trophoblast, placental site trophoblastic disease, abnormal uterine bleeding, case report, Gynecology and obstetrics, RG1-991
Abstract

Gestational trophoblastic disease is uncommon in practice. Usually a hydatidiform mole, an invasive mole and a choriocarcinoma are known among gynecologists. The practitioners have much less information about diseases associated with the intermediate trophoblast. These rare forms of trophoblastic disease are almost impossible to diagnose clinically. The morphological differential diagnosis is also quite difficult. Just careful attention to details, methodical study of the material, starting with routine staining methods, ending with immunohistochemical analysis, the use of molecular and cytogenetic typing, make it possible to establish the correct diagnosis and choose an effective therapeutic strategy. The article describes a rare clinical case of a placental site trophoblastic disease which was manifested by an ordinary abnormal uterine bleeding and then successfully diagnosed only by pathology experts.

Published
2024
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2. Cytokine production in an ex vivo model of SARS-CoV-2 lung infection

Author

Daria A. Vorobyeva, Daria M. Potashnikova, Elena V. Maryukhnich, George I. Rusakovich, Anna V. Tvorogova, Anna I. Kalinskaya, Natalia V. Pinegina, Anna V. Kovyrshina, Inna V. Dolzhikova, Alexander B. Postnikov, Fedor N. Rozov, Tatiana N. Sotnikova, Dmitry Yu. Kanner, Denis Yu. Logunov, Alexander L. Gintsburg, Elena J. Vasilieva, and Leonid B. Margolis

Subjects
ex vivo model, lung explant ex vivo culture, SARS-CoV-2, COVID-19, cytokines, immune response, Immunologic diseases. Allergy, RC581-607
Abstract

IntroductionThe mechanisms of the SARS-CoV-2-triggered complex alterations in immune cell activation and production of cytokines in lung tissue remain poorly understood, in part because of the limited use of adequate tissue models that simulate the structure and cell composition of the lung in vivo. We developed a novel ex vivo model of SARS-CoV-2 infection of lung explants, that maintains the intact tissue composition and the viral load for up to 7–10 days. Using this model, we studied cytokine production during SARS-CoV-2 infection.Materials and methodsLung tissue was monitored for viability and cell composition using flow cytometry and histological analysis. SARS-CoV-2 infection was verified immunohistochemically, viral loads in tissue and culture medium were monitored by qPCR. A panel of 41 cytokines was measured in culture medium using xMAP technology.ResultsThe explant lung tissue was viable and maintained viral infection that influenced the cytokine production. Elevated concentrations of G-CSF, GM-CSF, GRO-a, IFN-g, IL-6, IL-8, IP-10, MCP-3, MIP-1a, PDGF-AA, and VEGF, and decreased IL-1RA concentration were observed in infected tissue compared to non-infected tissue.DiscussionOur results generally reflect the data obtained in COVID-19 patients. GRO-a, IFN-g, IL-6, IL-8, MCP-1, MCP-3, and RANTES correlated with the viral load, forming a distinct pro-inflammatory cluster. Thus, our lung ex vivo model faithfully reproduces some aspects of cytokine alterations in COVID-19 patients at an early disease stage, making the investigation of SARS-CoV-2 infection mechanisms more accessible and providing a potential platform for antiviral drug testing.

Published
2024
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3. Programmed death ligand 1 (PD-L1) expression in gastric cancer: literature review

Author

T. N. Sotnikova, N. V. Danilova, P. G. Malkov, and T. V. Polushkina

Subjects
gastric cancer, immune cells, ligand of programmed cell death, tumor, programmed death ligand 1, receptors, signaling pathways, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Gastric cancer is one of the most common oncological diseases at the present time, so research in this area is very significant and relevant. Immunological checkpoint inhibitors have previously demonstrated their effectiveness and safety in various solid tumors, however, with regard to stomach cancer, to date, ambiguous results have been presented. Tumor cells express programmed death ligand 1 (PD-L1), which binds to its programmed death receptor 1 (PD-1). Immune defense plays a key role in the initiation and progression of the disease. Understanding the regulatory mechanism of PD-L1 in gastric cancer can lead to significant progress in immunotherapy, as well as contribute to the adequate selection of patients treated with checkpoint inhibitors. In the review, we conducted an in-depth study of PD-L1 expression and regulatory immunosuppressive mechanisms in gastric cancer and methods for assessing PD-L1 status, and also studied the results of current clinical trials in which inhibitors of immunological control points were considered in combination with and without chemotherapy for this oncopathology.

Published
2023
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5. Estimation of the influence of the design of school backpacks to posture regulation in children with different posture conditions

Author

E. N. Sotnikova, A. C. Sedova, A. M. Kurgansky, N. K. Barsukova, and Petr I. Khramtsov

Subjects
medicine.medical_specialty, Health, Toxicology and Mutagenesis, Public Health, Environmental and Occupational Health, General Medicine, Materials testing, 030204 cardiovascular system & hematology, medicine.disease_cause, Pollution, Weight-bearing, 03 medical and health sciences, 0302 clinical medicine, Equilibrium function, Physical medicine and rehabilitation, Orthopedic surgery, medicine, Spinal deformity, 030211 gastroenterology & hepatology, Back support, Psychology
Abstract

There was performed the study of the characteristics of the regulation of vertical posture in 42 children of 8-10 years old using school bags of different designs. According to medical examination 25 children have normal posture and 17 children had kyphotic one. The stability of the posture was estimated according to the average variance and the average velocity of the total center of gravity of the body, the area of the ellipse, and the quality of the equilibrium function with computer stabilography. Three models of school bags were used - with traditional, ergonomic and orthopedic back support. Vertical posture stability for children with impaired posture without school bag and when used with traditional and ergonomic back were significantly lower in comparison with children with normal posture. When the orthopedic back was used the stability impairment of the vertical posture in children with kyphotic posture was not observed. It is concluded that for the prevention of spinal deformity for students with kyphotic posture orthopedic school bags should be used.

Published
2019

6. [Pathomorphological aspects of urethral strictures of various etiologies]

Author

S V, Kotov, A P, Raksha, R I, Guspanov, M K, Semenov, T N, Sotnikova, E Kh, Abdulkhalygov, M M, Iritsyan, and I I, Survillo

Subjects
Male, Urethral Stricture, Mice, Treatment Outcome, Urologic Surgical Procedures, Male, Urethra, Animals, Humans, Plastic Surgery Procedures, Russia
Abstract

The study of the structure of strictures of various etiologies is an open and uncertain issue of modern urology.To evaluate the morphological and immunohistochemical structure of strictures of various etiologies.The study involved postoperative tissue of a pathologically altered urethra of 110 patients aged 23 to 74 years who underwent treatment at the University Clinic of Urology, Russian National Research Medical University. N.I. Pirogova (2014-2018) with Ds: urethral stricture. Morphological study: Van-Gieson staining; hemotoxylin - eosin. Immunohistochemical study: mouse monoclonal antibodies to muscle and connective tissue markers (Smooth Muscle Actin, Vimentin, Calponin) and inflammation markers (CD45R, CD58, CD138, CD20, CD3) were used as primary antibodies in all reactions.According to the revealed morphological changes, the material was divided into three groups: group I (n=27) - active inflammation; group II (n=33) - the predominant development of connective tissue with low activity of inflammation; group III (n=50) - mixed (chronic mild inflammation, an even amount of connective tissue). In a morphological study of idiopathic urethral strictures, it was noted that the multicolumnar epithelium was replaced by a multi-layer flat epithelium with a weakly pronounced keratinization. Inflammatory changes were mild, including the submucosal connective tissue and the spongy body. Spongiofibrosis is accompanied by a significant reduction in the vascular bed of both venous sinuses and arteries. The same changes were observed in the inflammatory genesis of urethral strictures. In the study of strictures with traumatic etiology, a restructuring of the cylindrical epithelium was observed. In cases with severe inflammation in the mucosa, the changes were atrophic-hyperplastic in nature with reactive cell atypia.urethral Strictures in men have a specific etiological factor, but the pathogenesis of urethral lesions can be divided into: post-traumatic and post-inflammatory.

Published
2021

7. Optimization Decisions in Accounting

Author

Lyudmila N. Sotnikova, Natalia I. Ponomareva, Roman V. Nuzhdin, Anna N. Polozova, and Irina N. Maslova

Subjects
Sustainable development, Profit (accounting), business.industry, Agriculture, Research methodology, Sustainability, Accounting, Architecture, Accounting policy, business
Abstract

In this study, we aim to justify and confirm the need for optimizing decision-making in the accounting of agricultural enterprises, especially regarding general taxation. The paper reveals the interconnections between the essence of sustainable development and tax sustainability, gives evidence of the sufficiency of the research methodology (deductive, inductive, systematic, and special scientific approaches), and confirms the practical usefulness of recommendations for improving accounting and the elements of taxation in business entities. As a result of this study, we developed methodological provisions for eliminating the shortcomings and contradictions in the existing accounting policies of agricultural enterprises. We provided ways of implementing these provisions in profit taxation systems, using, in contrast to existing methods, a block architecture of systematic optimization decisions. The proposed provisions, which have multi-purpose effectiveness, aim to increase the sustainability of economic activities in enterprises.

Published
2021

9. Tuberculosis of the larynx in a patient with long­term current laryngitis

Author

O K Piminidi, T. N. Sotnikova, R. F. Mamedov, E. A. Kirasirova, N V Lafutkina, and R. A. Rezakov

Subjects
Larynx, Pediatrics, medicine.medical_specialty, Tuberculosis, business.industry, General Medicine, Laryngitis, medicine.disease, Term (time), medicine.anatomical_structure, otorhinolaryngologic diseases, medicine, Current (fluid), business
Abstract

This case report demonstrates a case of isolated tuberculosis of the larynx in a patient with a prolonged inflammatory process of the larynx with a suspected malignant tumor and led to stenosis of the respiratory tract. The report is interest as an example of long-term (3 years) diagnostic search and the complexity of differential diagnosis of the disease.

Published
2018

10. [Estimation of the influence of the design of school backpacks to posture regulation in children with different posture conditions]

Author

P I, Khramtsov, A M, Kurgansky, N K, Barsukova, A C, Sedova, and E N, Sotnikova

Subjects
Male, Weight-Bearing, Child Development, Risk Factors, Materials Testing, Humans, Female, Child, Spinal Curvatures, Clothing, School Health Services
Abstract

There was performed the study of the characteristics of the regulation of vertical posture in 42 children of 8-10 years old using school bags of different designs. According to medical examination 25 children have normal posture and 17 children had kyphotic one. The stability of the posture was estimated according to the average variance and the average velocity of the total center of gravity of the body, the area of the ellipse, and the quality of the equilibrium function with computer stabilography. Three models of school bags were used - with traditional, ergonomic and orthopedic back support. Vertical posture stability for children with impaired posture without school bag and when used with traditional and ergonomic back were significantly lower in comparison with children with normal posture. When the orthopedic back was used the stability impairment of the vertical posture in children with kyphotic posture was not observed. It is concluded that for the prevention of spinal deformity for students with kyphotic posture orthopedic school bags should be used.

Published
2018

11. THE BANKING SYSTEM OF THE RUSSIAN FEDERATION: STATUS AND PROSPECTS

Author

L. N. Sotnikova and M. V. Tkacheva

Subjects
banking product, portfolio of banking services, passive operations, rates, credit institution, assets, TP368-456, banking system, banks, loans, Food processing and manufacture
Abstract

The features and current trends in the development of the banking system of the Russian Federation are highlighted in the article. The authors propose an original method of evaluation of activities of credit organizations with the use of statistical data and rating agencies. The concept of the banking system is summarized in this article. Also its structure is analyzed by the number of credit institutions and the quality of their operations. The authors identifie differences between the concepts of banking service, banking operation and banking product and propose classification according to different characteristics of banking institutions and operations that they carry out. Then the authors go to estimating the volume of banking services in Russia and their patterns in total. Separately the main passive (deposits and loans) and active operations (lending to legal entities and individuals) are characterized. The authors identifie the major developments in the banking system of the Russian Federation in 2014 due to political and economic sanctions by the U.S. and Eurozone countries. The article provides a vision of the authors on the further development of the banking activity in Russia and proposes specific measures to adapt the banking system of the Russian Federation in a constantly changing political and economic conditions (financial sanctions, a change of key Central Bank rates, devaluation, etc.). According to the authors' opinion the expected prospects of development of the banking system of the Russian Federation to 2015 are: the growth in savings accounts in banks; sanctions will be of a personal nature and will not affect the largest credit institutions; the active growth of the corporate loan portfolio will continue; the growth of retail lending portfolio will continue to slow; mortgage lending will increase in the total loan portfolio of the banking sector of Russia.

Published
2015

12. Interaction of Decidual CD56+ NK with Trophoblast Cells during Normal Pregnancy and Recurrent Spontaneous Abortion at Early Term of Gestation

Author

Y. Antsiferova, E. Bukina, N. Sotnikova, and D. Voronin

Subjects
Adult, Abortion, Habitual, Placenta, Immunology, Gestational Age, Cell Communication, Biology, Granzymes, Flow cytometry, Andrology, Interferon-gamma, Young Adult, Immune system, Cell Movement, Pregnancy, Decidua, medicine, Humans, Cells, Cultured, reproductive and urinary physiology, Fetus, Matrigel, medicine.diagnostic_test, Reverse Transcriptase Polymerase Chain Reaction, Gene Expression Regulation, Developmental, Trophoblast, General Medicine, Flow Cytometry, medicine.disease, CD56 Antigen, Trophoblasts, Killer Cells, Natural, Pregnancy Trimester, First, medicine.anatomical_structure, embryonic structures, Gestation, Female
Abstract

The immunological paradox of pregnancy, when maternal immune system recognizes but does not reject the semiallogenic foetus, is not yet fully understood. The aim of this work was to detail the mechanisms of the interaction of decidual CD56+ NK, infiltrating the maternal part of placenta, and trophoblast cells of foetal origin. Samples of the endometrial tissue from 13 healthy non-pregnant women, 37 placentas, obtained after medical abortion of viable pregnancy at 7-10 weeks of gestation, and 26 samples of placentas from first-trimester recurrent spontaneous abortion (RSA) were used as the material for investigation. Phenotype of NK was assessed by flow cytometry. The influence of trophoblast cells upon IFNγ and GrB mRNAs expression by dNK was investigated by RT-PCR. The influence of dNK upon trophoblast cells migration and invasion was studied using collagen and Matrigel systems. In RSA group comparing to the normal pregnancy, the decrease of dNK with inhibitory receptors (NKG2A) and elevation of activated dNK were seen. In normal pregnancy, but not in RSA, trophoblast cells increased the expression of IFNγ and GrB mRNAs by CD56+ dNK. Both in normal and RSA pregnancy, dNK inhibited the migration and invasion of trophoblast cells. Initially, low invasive and migration capacities of trophoblast cells were seen during RSA. Thus, unbalanced activation of dNK can lead to the impairment of dNK and trophoblast cells interaction during RSA.

Published
2014

13. Investment development of agroindustrial complex based on the demands of environmental safety

Author

L N Sotnikova, E E Bichyova, and I N Maslova

Subjects
Agriculture, business.industry, Environmental safety, Business, Fixed capital, Environmental economics, Investment (macroeconomics), Rational use, Natural resource
Abstract

The article proves the need to develop innovative approaches to the economic relations organization related to investment, as the requirements of environmental safety change. The authors conducted the research of the agroindustrial complex development in Russia, taking into account environmental requirements. The dynamics and structure of investments in fixed capital for environmental protection and rational use of natural resources are analysed. Special attention is devoted to the state financing of investment projects aimed at ensuring environmental safety in agroindustrial complex of Russia. Measures to take into account environmental requirements in the development of investment projects by agricultural enterprises of Russia are proposed.

Published
2019

14. Search for squarks and gluinos in events containing jets and a large imbalance in transverse energy

Author

V. V. Babintsev, Jianming Qian, G. Briskin, Tong Hu, T. Mc Mahon, T. Joffe-Minor, H. E. Fisk, Z. Zhou, J. Solomon, P. Padley, Alexey Volkov, C. Klopfenstein, G. Wang, Alberto Santoro, B. May, Seong Keun Kim, J. Mc Donald, T. Fahland, James H Cochran, Mitchell Wayne, D. Shpakov, M. Abolins, H. Schellman, J. M. Kohli, B. G. Pope, L. Magaña-Mendoza, D. Buchholz, P. Hanlet, Stefan Grünendahl, D. Coppage, J. Thompson, Elizabeth Gallas, F. Lobkowicz, E. Flattum, B. Gobbi, P. Tamburello, P. Mooney, Elizaveta Shabalina, B. Gómez, Z. H. Zhu, F. Borcherding, M. Merkin, C. S. Mishra, Anurag Gupta, S. Feher, B. Baldin, N. Amos, B. Gibbard, T. Rockwell, Iain Alexander Bertram, Robert Hirosky, S. Chopra, N. K. Mondal, Anna Goussiou, Shashikant Dugad, Michael Rijssenbeek, D. Edmunds, Emanuela Barberis, H. T. Diehl, H. Singh, S. Reucroft, J. T. White, E. Smith, C. Cretsinger, N.V. Mokhov, Jasvinder A. Singh, Y. Ducros, C. Yoshikawa, Alexander Leflat, Bobby Samir Acharya, H. A. Neal, J. Sculli, G. E. Forden, M. Strovink, A. Boehnlein, L. T. Goss, G. Guglielmo, R. Hernández-Montoya, H. C. Shankar, J. T. Linnemann, Andre Sznajder, T. Yasuda, M. Bhattacharjee, A. P. Heinson, B. Zhang, Gregory R Snow, Raymond Brock, Boaz Klima, A. Zieminski, Miguel Mostafa, M. D. Peters, V. N. Evdokimov, M. Sosebee, J. Ellison, N. Sotnikova, M. M. Baarmand, J. Krane, D. Norman, D.S. Koltick, Y. Pischalnikov, Ulrich Heintz, K. Yip, Sarah Catherine Eno, R. E. Hall, J. L. González Solís, Andrew White, K. A. Johns, L. Babukhadia, H. Jöstlein, Howard Gordon, R. Jesik, Sergey Kuleshov, Nikos Varelas, H. Haggerty, R. K. Shivpuri, Vasken Hagopian, K. C. Frame, Gilvan Alves, Z. Casilum, C. Murphy, O. Ramirez, S. Willis, P. Grudberg, Sharon Hagopian, H. Weerts, L. Oesch, E. W. Anderson, T. Heuring, T. Mc Kibben, A. K.A. Maciel, Victor Daniel Elvira, Neeti Parashar, Jinhong Yu, F. Nang, C. K. Jung, A. L. Lyon, Shuichi Kunori, S. Krzywdzinski, Q. Z. Li, Allan G Clark, A. N. Galyaev, Lev Dudko, Richard Breedon, John Hobbs, M. Diesburg, D. Owen, P. Bloom, J. A. Wightman, V. Vaniev, J. Tarazi, S. P. Denisov, J. Bantly, M. Fortner, A.S. Dyshkant, M. Tartaglia, P. Gartung, A. Zylberstejn, R. J. Madaras, M. H.G. Souza, J. Perkins, M. Zielinski, N. I. Bojko, Young-Sang Yu, W. Y. Chen, G. Gutierrez, S. Y. Jun, T. L.T. Thomas, K. S. Hahn, S. A. Jerger, D. Cutts, Y. Gershtein, H. Greenlee, Kaushik De, Allen Mincer, M. R. Krishnaswamy, W. E. Cooper, P. Yepes, H. E. Montgomery, J. V.D. Wirjawan, Wagner Carvalho, R. Piegaia, R. Snihur, F. Hsieh, N. Parua, V.V. Abramov, Sebastian Grinstein, A. Bross, Daniel R Claes, W. G. Cobau, M. I. Martin, Greg Landsberg, M. L. Stevenson, A. Para, George R. Kalbfleisch, R. J. Genik, Matthew Jones, J. Jaques, Y. Kulik, Serban Protopopescu, Michael A. Strauss, T. L. Geld, J. S. Hoftun, K. Davis, J. N. Butler, Heriberto Castilla-Valdez, S. N. Gurzhiev, Sergey Chekulaev, P. I. Goncharov, A. V. Kostritskiy, V. S. Narasimham, D. P. Stoker, C. Boswell, C. Miao, Ron Lipton, J. M. Guida, M. Paterno, D. Fein, P. D. Grannis, Alexander Belyaev, Sissel Hansen, H. Piekarz, Arnaud Lucotte, V. Oguri, J. Womersley, Thomas G Trippe, Suman Bala Beri, Don Lincoln, Stephen Wimpenny, I. Adam, P. Rubinov, A. Baden, Erich Varnes, Philip Baringer, Daniel John Karmgard, D. Hedin, G. C. Blazey, Viatcheslav Stolin, C. Hebert, Dhiman Chakraborty, R. Yamada, K. W. Merritt, S. Youssef, S. Choi, T. Marshall, S. Banerjee, K. M. Mauritz, H. D. Wahl, L. Coney, S. H. Ahn, Randy Ruchti, D. Karmanov, J. Warchol, V. A. Bezzubov, Jing Li, Peter Nemethy, Orin I. Dahl, F. Landry, John Rutherfoord, Darien Wood, J. F. Bartlett, V. Manankov, Winston Ko, A. A. Mayorov, A. Sanchez-Hernandez, Robert Kehoe, D. A. Stoyanova, Nicholas John Hadley, S. Fuess, P.F. Ermolov, Brajesh C Choudhary, Mary Beth Adams, J. P. Negret, S. Blessing, R. P. Smith, Andrew Brandt, R. Engelmann, M. Roco, G. Eppley, Scott Snyder, Z. Wu, Gervasio Gomez, Joan A. Guida, R. Markeloff, M. K. Fatyga, G. Steinbrück, Michael Shupe, Vladimir Gavrilov, Y. Fisyak, Gordon Watts, R. Mc Carthy, E. A. Kozlovsky, V. S. Burtovoi, Eunil Won, Rajendran Raja, M. Chung, J. Mc Kinley, V. Sirotenko, O. V. Eroshin, G. Di Loreto, H.E. Miettinen, H. da Motta, Marvin Johnson, J. G.R. Lima, J. Snow, C. Shaffer, D. Cullen-Vidal, K. Genser, Phillip Gutierrez, Brad Abbott, N. N. Biswas, A. V. Kotwal, Harrison Prosper, D. Denisov, A. V. Kozelov, A. S. Ito, Srinivasan Rajagopalan, Thomas Ferbel, Dan Green, E. G. Zverev, Pm Tuts, L. Lueking, F. Stichelbaut, Meenakshi Narain, A. Narayanan, K. Del Signore, R. W. Stephens, P. Yamin, S. Mani, R. Madden, Peter W. Draper, Pushpalatha C Bhat, K. Gounder, B. Lauer, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, Y. M. Park, S.A. Kahn, M. Demarteau, A. Jonckheere, A. P. Vorobiev, Stephan Linn, N. Oshima, Daria Zieminska, R. D. Schamberger, K. Streets, Vipin Bhatnagar, R. Partridge, H. S. Mao, D. L. Adams, B. Pawlik, D. Casey, J. Kotcher, N. Graf, H. L. Melanson, P. Z. Quintas, J. H. Christenson, J. M. Hauptman, and Cecilia Elena Gerber

Subjects
Physics, Particle physics, Gluino, Supergravity, Physics::Medical Physics, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, FOS: Physical sciences, Supersymmetry, Gluon, Luminosity, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics::Experiment, Nuclear Experiment, Energy (signal processing)
Abstract

Using data corresponding to an integrated luminosity of 79 pb-1, D0 has searched for events containing multiple jets and large missing transverse energy in pbar-p collisions at sqrt(s)=1.8 TeV at the Fermilab Tevatron collider. Observing no significant excess beyond what is expected from the standard model, we set limits on the masses of squarks and gluinos and on the model parameters m_0 and m_1/2, in the framework of the minimal low-energy supergravity models of supersymmetry. For tan(beta) = 2 and A_0 = 0, with mu < 0, we exclude all models with m_squark < 250 GeV/c^2. For models with equal squark and gluino masses, we exclude m < 260 GeV/c^2., 10 pages, 3 figures, Submitted to PRL, Fixed typo on page bottom of p. 6 (QCD multijet background is 35.4 events)

Published
2016

15. Differential cross section for w boson production as a function of transverse momentum in p p̄ collisions at √s = 1.8 TeV

Author

V.M Abazov, B Abbott, A Abdesselam, M Abolins, V Abramov, B.S Acharya, D.L Adams, M Adams, S.N Ahmed, G.D Alexeev, G.A Alves, N Amos, E.W Anderson, M.M Baarmand, V.V Babintsev, L Babukhadia, T.C Bacon, A Baden, B Baldin, P.W Balm, S Banerjee, E Barberis, P Baringer, J Barreto, J.F Bartlett, U Bassler, D Bauer, A Bean, M Begel, A Belyaev, S.B Beri, G Bernardi, I Bertram, A Besson, R Beuselinck, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, S Blessing, A Boehnlein, N.I Bojko, F Borcherding, K Bos, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, V.S Burtovoi, J.M Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, K.M Chan, S.V Chekulaev, D.K Cho, S Choi, S Chopra, J.H Christenson, M Chung, D Claes, A.R Clark, J Cochran, L Coney, B Connolly, W.E Cooper, D Coppage, M.A.C Cummings, D Cutts, G.A Davis, K Davis, K De, S.J de Jong, K Del Signore, M Demarteau, R Demina, P Demine, D Denisov, S.P Denisov, S Desai, H.T Diehl, M Diesburg, G Di Loreto, S Doulas, P Draper, Y Ducros, L.V Dudko, S Duensing, L Duflot, S.R Dugad, A Dyshkant, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, J Estrada, H Evans, V.N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, F Filthaut, H.E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, K.C Frame, S Fuess, E Gallas, A.N Galyaev, M Gao, V Gavrilov, R.J Genik II, K Genser, C.E Gerber, Y Gershtein, R Gilmartin, G Ginther, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, G Graham, P.D Grannis, J.A Green, H Greenlee, S Grinstein, L Groer, S Grünendahl, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, C Hays, C Hebert, D Hedin, A.P Heinson, U Heintz, T Heuring, M.D Hildreth, R Hirosky, J.D Hobbs, B Hoeneisen, Y Huang, R Illingworth, A.S Ito, M Jaffré, S Jain, R Jesik, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, A Juste, S Kahn, E Kajfasz, A.M Kalinin, D Karmanov, D Karmgard, R Kehoe, A Kharchilava, S.K Kim, B Klima, B Knuteson, W Ko, J.M Kohli, A.V Kostritskiy, J Kotcher, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, P Krivkova, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, A Kupco, V.E Kuznetsov, G Landsberg, A Leflat, C Leggett, F Lehner, J Li, Q.Z Li, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, A Lucotte, L Lueking, C Lundstedt, C Luo, A.K.A Maciel, R.J Madaras, V.L Malyshev, V Manankov, H.S Mao, T Marshall, M.I Martin, R.D Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, J McDonald, T McMahon, H.L Melanson, M Merkin, K.W Merritt, C Miao, H Miettinen, D Mihalcea, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, R.W Moore, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V.S Narasimham, H.A Neal, J.P Negret, S Negroni, T Nunnemann, D O'Neil, V Oguri, B Olivier, N Oshima, P Padley, L.J Pan, K Papageorgiou, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, M Peters, O Peters, P Pétroff, R Piegaia, H Piekarz, B.G Pope, E Popkov, H.B Prosper, S Protopopescu, J Qian, R Raja, S Rajagopalan, E Ramberg, P.A Rapidis, N.W Reay, S Reucroft, J Rha, M Ridel, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, B.M Sabirov, A Santoro, L Sawyer, R.D Schamberger, H Schellman, A Schwartzman, N Sen, E Shabalina, R.K Shivpuri, D Shpakov, M Shupe, R.A Sidwell, V Simak, H Singh, J.B Singh, V Sirotenko, P Slattery, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, V Sorı́n, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N.R Stanton, G Steinbrück, R.W Stephens, F Stichelbaut, D Stoker, V Stolin, D.A Stoyanova, M Strauss, M Strovink, L Stutte, A Sznajder, W Taylor, S Tentindo-Repond, S.M Tripathi, T.G Trippe, A.S Turcot, P.M Tuts, P van Gemmeren, V Vaniev, R Van Kooten, N Varelas, L.S Vertogradov, A.A Volkov, A.P Vorobiev, H.D Wahl, H Wang, Z.-M Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, D Whiteson, J.A Wightman, D.A Wijngaarden, S Willis, S.J Wimpenny, J Womersley, D.R Wood, R Yamada, P Yamin, T Yasuda, Y.A Yatsunenko, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, H Zheng, Z Zhou, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E.G Zverev, and A Zylberstejn

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Proton, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, D0 experiment, 7. Clean energy, 01 natural sciences, law.invention, law, Antiproton, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics, Collider
Abstract

We report a measurement of the differential cross section for W boson production as a function of its transverse momentum in proton-antiproton collisions at √s = 1.8 TeV. The data were collected by the DØ experiment at the Fermilab Tevatron Collider during 1994-1995 and correspond to an integrated luminosity of 85 pb-1. The results are in good agreement with quantum chromodynamics over the entire range of transverse momentum. © 2001 Elsevier Science B.V.

Published
2016

16. Probing hard color-singlet exchange in pp̄ collisions at √s = 630 GeV and 1800 GeV

Author

B Abbott, M Abolins, V Abramov, B.S Acharya, I Adam, D.L Adams, M Adams, S Ahn, H Aihara, G.A Alves, N Amos, E.W Anderson, R Astur, M.M Baarmand, V.V Babintsev, L Babukhadia, A Baden, B Baldin, S Banerjee, J Bantly, E Barberis, P Baringer, J.F Bartlett, A Belyaev, S.B Beri, I Bertram, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, N Biswas, G Blazey, S Blessing, P Bloom, A Boehnlein, N.I Bojko, F Borcherding, C Boswell, A Brandt, R Breedon, R Brock, A Bross, D Buchholz, V.S Burtovoi, J.M Butler, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, S.-M Chang, S.V Chekulaev, W Chen, S Choi, S Chopra, B.C Choudhary, J.H Christenson, M Chung, D Claes, A.R Clark, W.G Cobau, J Cochran, L Coney, W.E Cooper, C Cretsinger, D Cullen-Vidal, M.A.C Cummings, D Cutts, O.I Dahl, K Davis, K De, K Del Signore, M Demarteau, D Denisov, S.P Denisov, H.T Diehl, M Diesburg, G Di Loreto, P Draper, Y Ducros, L.V Dudko, S.R Dugad, A Dyshkant, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, V.N Evdokimov, T Fahland, M.K Fatyga, S Feher, D Fein, T Ferbel, G Finocchiaro, H.E Fisk, Y Fisyak, E Flattum, G.E Forden, M Fortner, K.C Frame, S Fuess, E Gallas, A.N Galyaev, P Gartung, V Gavrilov, T.L Geld, R.J Genik II, K Genser, C.E Gerber, Y Gershtein, B Gibbard, B Gobbi, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, P.D Grannis, D.R Green, H Greenlee, S Grinstein, P Grudberg, S Grünendahl, G Guglielmo, J.A Guida, J.M Guida, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, K.S Hahn, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, D Hedin, A.P Heinson, U Heintz, R Hernández-Montoya, T Heuring, R Hirosky, J.D Hobbs, B Hoeneisen, J.S Hoftun, F Hsieh, Ting Hu, Tong Hu, A.S Ito, E James, J Jaques, S.A Jerger, R Jesik, T Joffe-Minor, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, S.Y Jun, C.K Jung, S Kahn, G Kalbfleisch, D Karmanov, D Karmgard, R Kehoe, M.L Kelly, S.K Kim, B Klima, C Klopfenstein, W Ko, J.M Kohli, D Koltick, A.V Kostritskiy, J Kotcher, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, S Krzywdzinski, S Kuleshov, Y Kulik, S Kunori, F Landry, G Landsberg, B Lauer, A Leflat, J Li, Q.Z Li-Demarteau, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, F Lobkowicz, S.C Loken, A Lucotte, L Lueking, A.L Lyon, A.K.A Maciel, R.J Madaras, R Madden, L Magaña-Mendoza, V Manankov, S Mani, H.S Mao, R Markeloff, T Marshall, M.I Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, J McDonald, T McKibben, J McKinley, T McMahon, H.L Melanson, M Merkin, K.W Merritt, C Miao, H Miettinen, A Mincer, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, P Mooney, M Mostafa, H da Motta, C Murphy, F Nang, M Narain, V.S Narasimham, A Narayanan, H.A Neal, J.P Negret, P Nemethy, D Norman, L Oesch, V Oguri, E Oliveira, E Oltman, N Oshima, D Owen, P Padley, A Para, Y.M Park, R Partridge, N Parua, M Paterno, B Pawlik, J Perkins, M Peters, R Piegaia, H Piekarz, Y Pischalnikov, B.G Pope, H.B Prosper, S Protopopescu, J Qian, P.Z Quintas, R Raja, S Rajagopalan, O Ramirez, S Reucroft, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, A Sánchez-Hernández, A Santoro, L Sawyer, R.D Schamberger, H Schellman, J Sculli, E Shabalina, C Shaffer, H.C Shankar, R.K Shivpuri, D Shpakov, M Shupe, H Singh, J.B Singh, V Sirotenko, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, M Sosebee, N Sotnikova, M Souza, G Steinbrück, R.W Stephens, M.L Stevenson, D Stewart, F Stichelbaut, D Stoker, V Stolin, D.A Stoyanova, M Strauss, K Streets, M Strovink, A Sznajder, P Tamburello, J Tarazi, M Tartaglia, T.L.T Thomas, J Thompson, T.G Trippe, P.M Tuts, V Vaniev, N Varelas, E.W Varnes, D Vititoe, A.A Volkov, A.P Vorobiev, H.D Wahl, G Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, J.A Wightman, S Willis, S.J Wimpenny, J.V.D Wirjawan, J Womersley, E Won, D.R Wood, Z Wu, R Yamada, P Yamin, T Yasuda, P Yepes, K Yip, C Yoshikawa, S Youssef, J Yu, Y Yu, B Zhang, Y Zhou, Z Zhou, Z.H Zhu, M Zielinski, D Zieminska, A Zieminski, E.G Zverev, and A Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Transverse plane, Particle physics, Pseudorapidity, High Energy Physics::Phenomenology, Detector, High Energy Physics::Experiment, Singlet state, Jet (particle physics), Nuclear Experiment
Abstract

We present results on dijet production via hard color-singlet exchange in proton-antiproton collisions at √s = 630 GeV and 1800 GeV using the DØ detector. The fraction of dijet events produced via color-singlet exchange is measured as a function of jet transverse energy, separation in pseudorapidity between the two highest transverse energy jets, and proton-antiproton center-of-mass energy. The results are consistent with a color-singlet fraction that increases with an increasing fraction of quark-initiated processes and inconsistent with two-gluon models for the hard color-singlet. © 1998 Published by Elsevier Science B.V. All rights reserved.

Published
2016

17. Observation of diffractively produced W and Z bosons in p̄p collisions at √s = 1800 GeV

Author

R. Van Kooten, Wendy Taylor, A. Patwa, S. Fu, P. Demine, A. Zieminski, Q. Xu, J. Huang, R. A. Sidwell, Alexander Khanov, U. Bassler, A. N. Galyaev, Stephen Wimpenny, G. Steinbrück, Rajendran Raja, H. Zheng, Brad Abbott, Pierre Petroff, S. Fuess, Roger Moore, Zeno Dixon Greenwood, K. W. Merritt, Vladimir Gavrilov, Gordon Watts, D. Coppage, V. Sirotenko, D. K. Cho, Y. Arnoud, R. Illingworth, Regina Demina, T. C. Bacon, E. W. Anderson, M. Buehler, J. F. Bartlett, A. Besson, N. A. Naumann, F. Borcherding, L. Lueking, Bobby Samir Acharya, H. A. Neal, J. T. Linnemann, V. M. Abazov, V. Sorín, O. V. Eroshin, Y. Song, Phillip Gutierrez, T. Marshall, W. E. Cooper, K. Yip, S. Duensing, V. Oguri, Ulrich Heintz, D. Fein, D. Chakraborty, S. Chopra, Don Lincoln, Q. Z. Li, P. W. Balm, V. Manankov, M. Abolins, S. Reucroft, D. P. Stoker, Gustaaf Brooijmans, H. Jöstlein, Darien Wood, G. Sajot, P. Yamin, Frank Filthaut, A. Stone, Daniel John Karmgard, Elemer Nagy, N. R. Stanton, S. N. Ahmed, M. Fortner, L. Stutte, N. W. Reay, R. L. McCarthy, H. L. Melanson, N. Parua, V.V. Abramov, M. Jaffré, Arnaud Duperrin, Alberto Santoro, M. Diesburg, Nicholas John Hadley, C. Hebert, Sebastian Grinstein, N. K. Mondal, J. Warchol, H. T. Diehl, T. A. Bolton, C. Han, A.S. Dyshkant, Arnaud Lucotte, Jong-Sung Yu, Alexander Kupco, G. D. Alexeev, Flera Rizatdinova, D. Whiteson, A. V. Kostritskiy, D. Mihalcea, W. Kahl, A. Boehnlein, M. Bhattacharjee, S. Blessing, P. Rubinov, K. Gounder, Sissel Hansen, David H. Adams, Alice Bean, P. M. Tuts, V. E. Kuznetsov, Sarah Catherine Eno, T. Rockwell, Iain Alexander Bertram, H. E. Fisk, Scott Snyder, F. Fleuret, M. Merkin, Randy Ruchti, M. A. Strang, Jing Li, Ariel Schwartzman, Melissa Ridel, F. Canelli, R. Kehoe, D. A. Stoyanova, A. S. Turcot, Michael Rijssenbeek, S. N. Gurzhiev, T. G. Trippe, Z. Zhou, J. Solomon, L. Duflot, M. Strovink, Emanuela Barberis, Robert Hirosky, Volker Buescher, Shuichi Kunori, Raymond Brock, Boaz Klima, Elizabeth Gallas, T. McMahon, R. Beuselinck, F. Nang, Vasken Hagopian, Christophe Royon, A. M. Kalinin, G. Eppley, Heriberto Castilla-Valdez, V. Vaniev, Richard B. Lipton, H. Weerts, N.V. Mokhov, Z. M. Wang, M. I. Martin, J. Ellison, A. K.A. Maciel, Sa. Jain, A. Abdesselam, V. Simak, A. Leflat, H. da Motta, S. Willis, M. Gao, Sharon Hagopian, Lev Dudko, F. Villeneuve-Seguier, A. P. Heinson, Pushpalatha C Bhat, P. Padley, G. Gutierrez, Gilvan Alves, J. G.R. Lima, D. Cutts, C. Luo, D. Casey, J. Kotcher, Alexey Volkov, J. M. Hauptman, Cecilia Elena Gerber, H. D. Wahl, D. Bauer, V. S. Narasimham, L. Groer, Wagner Carvalho, Mitchell Wayne, Sujogya Banerjee, Greg Landsberg, Harald Fox, Viatcheslav Stolin, H. Schellman, J. M. Kohli, K. Papageorgiou, V. V. Babintsev, G. Ginther, V. N. Evdokimov, R. E. Hall, M. Zanabria, M. H.G. Souza, A. S. Ito, Tulika Bose, N. Graf, Michael Begel, Stefan Grünendahl, Jianming Qian, J. T. Eltzroth, M. A.C. Cummings, A. A. Mayorov, L. Coney, B. Hoeneisen, Y. D. Mutaf, S. Tentindo-Repond, Vipin Bhatnagar, Andrew White, Mossadek Talby, B. Gómez, P. I. Goncharov, H. E. Montgomery, Lee Sawyer, C. Lundstedt, Carlos Avila, J. Snow, H. Haggerty, K. Soustruznik, Christos Leonidopoulos, Yu-tin Huang, S. Krzywdzinski, R. Partridge, X. Zhang, Shashikant Dugad, K. Genser, G. Briskin, Jeffrey F. Krane, R. Jesik, Sabine Crépé-Renaudin, Philip Baringer, A. Baden, G. C. Blazey, J. Womersley, A. Goussiou, S. Baffioni, K. A. Johns, C. Miao, B. Olivier, R. Yamada, V. L. Malyshev, Nikos Varelas, B. M. Sabirov, Andrei Nomerotski, Bing Zhou, E. G. Zverev, H. S. Mao, B. G. Pope, D. Karmanov, R. K. Shivpuri, John Hobbs, S. J. De Jong, S.A. Kahn, M. B. Przybycien, A. Zylberstejn, F. Lehner, D. R. Claes, Ia Iashvili, J. Barreto, B. Kothari, T. Yasuda, M. Demarteau, Mary Beth Adams, S. Doulas, D. Buchholz, Howard Gordon, Elizaveta Shabalina, Kaushik De, R. Piegaia, H. Greenlee, James C. Green, Neeti Parashar, Florian Beaudette, Marvin Johnson, P. A. Rapidis, M. Zielinski, A. Jonckheere, A. V. Kozelov, S. M. Tripathi, E. Kajfasz, Alexander Belyaev, Suyong Choi, A. P. Vorobiev, Stephan Linn, S. P. Denisov, Gregory R Snow, D. Hedin, Patrick Slattery, A. Bross, O. Peters, N. Oshima, Meenakshi Narain, K. M. Mauritz, P.F. Ermolov, Daria Zieminska, M. R. Krishnaswamy, R. D. Schamberger, V. S. Burtovoi, A. R. Clark, N. Sotnikova, M. A. Kubantsev, R. J. Genik, Sergey Chekulaev, Gregorio Bernardi, D. Denisov, J. M. Heinmiller, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, R. J. Madaras, G. A. Davis, Serban Protopopescu, V. A. Bezzubov, J. P. Negret, M. Sosebee, A. Alton, R. P. Smith, Freya Blekman, Andrew Brandt, R. Engelmann, Michael Shupe, E. A. Kozlovsky, H.E. Miettinen, Michael Hildreth, J. Estrada, K. M. Chan, Y. A. Yatsunenko, Harrison Prosper, S. Desai, T. Nunnemann, B. Baldin, W. M. Lee, A. Kharchilava, Sergey Kuleshov, Victor Daniel Elvira, V. Zutshi, D. Shpakov, N. I. Bojko, D. O'Neil, J. N. Butler, P. D. Grannis, Michael A. Strauss, Y. Kulik, Suman Bala Beri, A. Juste, B. Connolly, D. A. Wijngaarden, K. Bos, D. Edmunds, Andre Sznajder, Yuri Gershtein, P. Krivkova, and L. Babukhadia

Subjects
Physics, Diffraction, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, Detector, Sigma, HERA, 01 natural sciences, Nuclear physics, W and Z bosons, biological sciences, 0103 physical sciences, bacteria, Rapidity, 010306 general physics, Boson
Abstract

Using the DO detector, we have observed events produced in (p) over barp collisions that contain W or Z bosons in conjunction with very little energy deposition ("rapidity gaps") in large forward regions of the detector. The fraction of W boson events with a rapidity gap (a signature for diffraction) is 0.89 +/- (0.19)(0.17)% and the probability that the non-diffractive background fluctuated to yield the observed diffractive signal is 3 x 10(-14), corresponding to a significance of 7.5 sigma. The Z boson sample has a gap fraction of 1.44 +/- (0.61)(0.52)%, with a significance of 4.4 sigma. The diffractive events have very similar properties to the more common non-diffractive component. (C) 2003 Elsevier B.V. All rights reserved.

Published
2016

18. Helicity of the W boson in lepton + jets tt̄ events

Author

A. Leflat, Andrew White, S. Tentindo-Repond, V. Zutshi, R. L. McCarthy, W. Kahl, D. Shpakov, V. A. Bezzubov, Philip Baringer, M. Merkin, S. Banerjee, B. G. Pope, Marvin Johnson, Elizaveta Shabalina, Andrei Nomerotski, John Hobbs, V.V. Abramov, Shuichi Kunori, Emanuela Barberis, J. Barreto, T. Nunnemann, B. Baldin, Raymond Brock, Boaz Klima, R. Beuselinck, J. P. Negret, R. P. Smith, Michael Shupe, Michael Hildreth, A. V. Kozelov, H. da Motta, A. S. Ito, E. G. Zverev, M. Buehler, V. Vaniev, Alexander Kupco, N. R. Stanton, T. C. Bacon, D. P. Stoker, Michael A. Strauss, Meenakshi Narain, Randy Ruchti, Tulika Bose, W. M. Lee, A. Kharchilava, Sergey Kuleshov, Victor Daniel Elvira, S. Willis, J. Estrada, Y. A. Yatsunenko, Harrison Prosper, P.F. Ermolov, M. Jaffré, P. A. Rapidis, H. Haggerty, S. P. Denisov, Y. Kulik, A. Stone, Suman Bala Beri, M. Bhattacharjee, J. M. Hauptman, Cecilia Elena Gerber, V. V. Babintsev, G. Ginther, Jianming Qian, A. Jonckheere, A. P. Vorobiev, Stephan Linn, N. Oshima, Daria Zieminska, M. R. Krishnaswamy, Sergey Chekulaev, G. Briskin, Jeffrey F. Krane, V. Oguri, Heriberto Castilla-Valdez, S. Baffioni, M. A. Kubantsev, S. N. Gurzhiev, P. Demine, V. S. Burtovoi, Pushpalatha C Bhat, A. Abdesselam, Gustaaf Brooijmans, A. Juste, F. Borcherding, Vipin Bhatnagar, D. Coppage, J. Warchol, M. A.C. Cummings, V. Simak, H. E. Fisk, P. Padley, Alexey Volkov, B. Hoeneisen, Robert Hirosky, Lee Sawyer, Zeno Dixon Greenwood, N. Sotnikova, Wendy Taylor, A. M. Kalinin, Z. Zhou, J. Solomon, R. Partridge, X. Zhang, A. Besson, N. A. Naumann, S. Chopra, Viatcheslav Stolin, M. Gao, Mitchell Wayne, H. Schellman, J. M. Kohli, A. N. Galyaev, Ariel Schwartzman, G. Sajot, Roger Moore, D. K. Cho, Y. Arnoud, S. Reucroft, Melissa Ridel, S.A. Kahn, G. Gutierrez, M. Demarteau, Gilvan Alves, V. S. Narasimham, L. Groer, Thomas G Trippe, M. Strovink, R. Kehoe, Stefan Grünendahl, Mossadek Talby, S. Desai, R. Illingworth, B. Gómez, C. Lundstedt, Carlos Avila, W. E. Cooper, M. A. Strang, Sabine Crépé-Renaudin, A. Patwa, A. A. Mayorov, V. L. Malyshev, H. S. Mao, Shashikant Dugad, Vasken Hagopian, B. S. Acharya, H. Weerts, J. Snow, Arnaud Duperrin, M. Sosebee, S. Nelson, M. H.G. Souza, Andrew Brandt, E. A. Kozlovsky, H.E. Miettinen, Lev Dudko, F. Villeneuve-Seguier, G. D. Alexeev, Flera Rizatdinova, F. Blekman, Jong-Sung Yu, L. Lueking, N. I. Bojko, D. O'Neil, H. E. Montgomery, L. Babukhadia, Vladimir Gavrilov, Gordon Watts, V. Sirotenko, O. V. Eroshin, Y. Song, Phillip Gutierrez, Neeti Parashar, J. N. Butler, Daniel Whiteson, Q. Z. Li, P. D. Grannis, C. Han, F. Beaudette, S. J. De Jong, M. B. Przybycien, M. Zielinski, Christos Leonidopoulos, R. J. Madaras, B. Kothari, Sarah Catherine Eno, D. Mihalcea, V. Buescher, J. Womersley, P. M. Tuts, V. E. Kuznetsov, Sebastian Grinstein, Z. M. Wang, B. Connolly, D. Karmanov, P. Pétroff, E. Kajfasz, K. W. Merritt, D. Hedin, U. Bassler, R. Engelmann, Ia Iashvili, S. Kesisoglou, V. M. Abazov, A. V. Kostritskiy, Regina Demina, Elizabeth Gallas, T. McMahon, K. Gounder, S. N. Ahmed, M. Fortner, Sissel Hansen, T. Rockwell, Iain Alexander Bertram, N. W. Reay, Y. D. Mutaf, H. A. Neal, J. T. Linnemann, V. Sorín, K. Yip, Michael Rijssenbeek, Christophe Royon, J. F. Bartlett, Alberto Santoro, J. G.R. Lima, V. Manankov, L. Stutte, A.S. Dyshkant, A. Melnitchouk, H. D. Wahl, J. T. Eltzroth, D. Bauer, M. Zanabria, P. Rubinov, V. N. Evdokimov, R. Jesik, Laurent Duflot, A. Alton, K. A. Johns, O. Peters, D. A. Wijngaarden, Richard B. Lipton, Suyong Choi, T. Yasuda, K. Bos, K. M. Chan, Sharon Hagopian, M. Abolins, H. L. Melanson, D. Buchholz, N. K. Mondal, R. Piegaia, Anna Goussiou, H. T. Diehl, T. A. Bolton, Gregorio Bernardi, D. Denisov, Gregory R Snow, A. Boehnlein, D. Edmunds, J. Ellison, A. K.A. Maciel, Sa. Jain, S. Fuess, Andre Sznajder, Yuri Gershtein, J. M. Heinmiller, Srinivasan Rajagopalan, P. I. Goncharov, Hal Evans, Thomas Ferbel, C. Miao, P. Krivkova, David H. Adams, Alice Bean, F. Canelli, A. Quadt, S. E.K. Mattingly, S. Fu, D. Chakraborty, D. Cutts, Wagner Carvalho, Don Lincoln, P. W. Balm, Vivek Jain, Q. Xu, Daniel John Karmgard, Greg Landsberg, C. Hebert, N. Parua, Alexander Khanov, Jing Li, R. Van Kooten, Ulrich Heintz, K. Soustruznik, H. Jöstlein, A. Zieminski, Frank Filthaut, M. Diesburg, J. Huang, D. A. Stoyanova, A. S. Turcot, R. A. Sidwell, S. Krzywdzinski, Michael Begel, A. Zylberstejn, R. D. Schamberger, F. Lehner, H. Greenlee, A. Bross, G. A. Davis, Serban Protopopescu, Alexander Belyaev, Patrick Slattery, N.V. Mokhov, M. I. Martin, A. P. Heinson, R. E. Hall, G. Steinbrück, K. Genser, A. Baden, G. C. Blazey, Brad Abbott, R. Yamada, C. Luo, Mary Beth Adams, B. M. Sabirov, R. K. Shivpuri, Elemer Nagy, D. R. Claes, S. Doulas, Kaushik De, Yu-tin Huang, Nikos Varelas, Bing Zhou, Stephen Wimpenny, A. R. Clark, T. Marshall, Darien Wood, Nicholas John Hadley, S. Blessing, Scott Snyder, D. Casey, J. Kotcher, and Harald Fox

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Top quark, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, FOS: Physical sciences, 01 natural sciences, Helicity, law.invention, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Lepton, Boson
Abstract

We examine properties of ttbar candidates events in lepton+jets final states to establish the helicities of the W bosons in t->W+b decays. Our analysis is based on a direct calculation of a probability that each event corresponds to a ttbar final state, as a function of the helicity of the W boson. We use the 125 events/pb sample of data collected by the DO experiment during Run I of the Fermilab Tevatron collider at sqrt{s}=1.8 TeV, and obtain a longitudinal helicity fraction of F_0=0.56+/-0.31, which is consistent with the prediction of F_0=0.70 from the standard model.

Published
2016

19. Measurement of the high-mass Drell-Yan cross section and limits on quark-electron compositeness scales

Author

S. A. Jerger, W. G. Cobau, M. I. Martin, R. L. McCarthy, J. McDonald, B. Baldin, C. Klopfenstein, S. Krzywdzinski, Philip Baringer, M. Abolins, Y. Ducros, D. Norman, A.K. Gupta, W. E. Cooper, T. Joffe-Minor, P. Mooney, Peter Nemethy, L. Lueking, M. Roco, A. Zylberstejn, H. T. Diehl, L. Magaña-Mendoza, P. Yamin, E. Smith, H. Singh, C. Murphy, T. Heuring, R. Hernández-Montoya, P. Ermolov, M. Merkin, Y. Kulik, T. McKibben, E. Shabalina, Z. Zhou, J. Solomon, B. May, K. Del Signore, Matthew Jones, G. Eppley, Sergey Kuleshov, S. Protopopescu, Victor Daniel Elvira, H. da Motta, J. Yu, S. Grünendahl, S. Mani, N. Sotnikova, J. Ellison, A. K.A. Maciel, Elizabeth Gallas, H. Weerts, M. Bhattacharjee, B. Gobbi, Alexander Vorobiev, Hiroaki Aihara, A. Bross, J. Krane, R. Jesik, Jasvinder A. Singh, D. Koltick, D. Zieminska, S. Fuess, R. Madden, J. Bantly, Raymond Brock, Boaz Klima, Richard Breedon, H. Greenlee, T. G. Trippe, V. Gavrilov, Rajendran Raja, R. W. Stephens, G. Gutierrez, Peter W. Draper, S. Youssef, Pm Tuts, Sharon Hagopian, G. Guglielmo, A. Sanchez-Hernandez, Brad Abbott, T. McMahon, Robert Kehoe, David Cutts, P. I. Goncharov, S. Willis, H. E. Fisk, Sergey Denisov, Robert Hirosky, B. Zhang, P. Gartung, J. M. Hauptman, J. M. Guida, D. Hedin, L. Babukhadia, Cecilia Elena Gerber, E. Oltman, M. Sosebee, Pushpalatha C Bhat, P. Padley, N.V. Mokhov, Alexey Volkov, Stephen Wimpenny, V. V. Babintsev, J. McKinley, Y. M. Park, C. Miao, K. Gounder, Andrew Brandt, T. Marshall, R. Engelmann, S. Feher, Andrew White, V. N. Evdokimov, Gervasio Gomez, E. A. Kozlovsky, W. Y. Chen, Eunil Won, P. Bloom, V. A. Bezzubov, J. P. Negret, B. Lauer, R. P. Smith, A. N. Galyaev, G. E. Forden, A. P. Heinson, P. Yepes, Jianming Qian, James H Cochran, J. A. Wightman, M. A.C. Cummings, H.E. Miettinen, N. K. Mondal, A. Zieminski, Y. Zhou, Mitchell Wayne, F. Stichelbaut, B. Hoeneisen, N. I. Bojko, A. Boehnlein, Michael Shupe, V. S. Narasimham, B. G. Pope, R. E. Hall, J. L. González Solís, Z. Casilum, Darien Wood, H. Schellman, J. M. Kohli, D. Vititoe, C. K. Jung, V. Stolin, Nicholas John Hadley, Tong Hu, H. L. Melanson, P. Z. Quintas, H. E. Montgomery, A. V. Kozelov, M. L. Stevenson, R. J. Genik, A. A. Mayorov, A. L. Lyon, Shuichi Kunori, A. V. Kotwal, Harrison Prosper, R. Snihur, J. Snow, Daniel R Claes, D. Fein, M. Fortner, A. Jonckheere, H. D. Wahl, Winston Ko, S. Y. Jun, T. L.T. Thomas, S. Blessing, M. K. Fatyga, Scott Snyder, R. Markeloff, J. H. Christenson, E. G. Zverev, V. Vaniev, J. S. Hoftun, K. Davis, J. N. Butler, D. Denisov, Steve Reucroft, R. K. Shivpuri, S.A. Kahn, S. M. Chang, Don Lincoln, Erich Varnes, Li Jingyuan, Daniel John Karmgard, P. D. Grannis, H. Piekarz, F. Lobkowicz, P. Grudberg, J. F. Bartlett, A. Goussiou, C. Shaffer, M. Demarteau, D. Cullen-Vidal, K. Genser, J. Thompson, Andre Sznajder, B. Gómez, N. N. Biswas, M. Tartaglia, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, Z. H. Zhu, Z. Wu, Yuri Gershtein, K. Streets, Vipin Bhatnagar, D. Shpakov, M. D. Peters, Kaushik De, Shashikant Dugad, R. D. Schamberger, Meenakshi Narain, R. Partridge, K. M. Mauritz, Young-Sang Yu, J. Warchol, L. T. Goss, L. Oesch, P. Hanlet, J. V. D. Wirjawan, S. Chopra, G. Finocchiaro, V. Oguri, A. Narayanan, H. S. Mao, G. Wang, Alberto Santoro, J. G.R. Lima, G. Kalbfleisch, D. L. Adams, A. V. Kostritskiy, T. Fahland, D. Edmunds, Dhiman Chakraborty, M. H.G. Souza, Michael A. Strauss, Sissel Hansen, B. Gibbard, Kenneth Johns, Stephan Linn, V. S. Burtovoi, J. Sculli, M. Diesburg, C. Boswell, E. Flattum, R. Yamada, L. Coney, J. D. Hobbs, M. R. Krishnaswamy, Ricardo Piegaia, B. Pawlik, N. Oshima, Nikos Varelas, Suman Bala Beri, D. Casey, J. Kotcher, O. I. Dahl, G. Steinbrück, J. Linnemann, Sun Kee Kim, C. Yoshikawa, N. Graf, E. W. Anderson, Q. Z. Li, Allen Mincer, Sebastian Grinstein, Alexander Belyaev, D. Buchholz, Edilamar Menezes de Oliveira, Y. Pischalnikov, P. Tamburello, Gregory R Snow, F. Hsieh, Heriberto Castilla-Valdez, Ulrich Heintz, H. Jöstlein, D. Owen, J. Tarazi, A. R. Clark, A. Para, Sergey Chekulaev, M. L. Kelly, Howard Gordon, K. C. Frame, O. Ramirez, I. Adam, P. Rubinov, K. W. Merritt, V. Manankov, M. Chung, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, K. Yip, A.S. Dyshkant, J. Jaques, Ron Lipton, J. Womersley, Mark Raymond Adams, D. Karmanov, Brajesh C Choudhary, D. P. Stoker, Emanuela Barberis, H. Haggerty, Suyong Choi, Y. Fisyak, Joan A. Guida, G. Di Loreto, Srinivasan Rajagopalan, Thomas Ferbel, Dan Green, L. Sawyer, Marvin Johnson, M. Zielinski, R. J. Madaras, T. Yasuda, S. N. Gurzhiev, C. Cretsinger, J. Perkins, Alexander Leflat, M. Strovink, Gilvan Alves, K. S. Hahn, Wagner Carvalho, Greg Landsberg, Sw. Banerjee, T. L. Geld, M. Paterno, A. Baden, G. C. Blazey, S. C. Loken, N. Parua, V.V. Abramov, S. H. Ahn, F. Landry, John Rutherfoord, D. A. Stoyanova, Arnaud Lucotte, F. Borcherding, N. Amos, Randy Ruchti, Miguel Mostafa, C. S. Mishra, M. M. Baarmand, Sarah Catherine Eno, Vasken Hagopian, F. Nang, Lev Dudko, A. S. Ito, Gordon Watts, V. Sirotenko, O. V. Eroshin, Phillip Gutierrez, and J. T. White

Subjects
Quark, Physics, Particle physics, High Energy Physics::Phenomenology, FOS: Physical sciences, General Physics and Astronomy, Scale (descriptive set theory), Electron, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Cross section (physics), High mass, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment
Abstract

We present a measurement of the Drell-Yan cross section at high dielectron invariant mass using 120/pb of data collected in pbar-p collisions at sqrt(s) = 1.8 TeV by the D0 collaboration during 1992-96. No deviation from standard model expectations is observed. We use the data to set limits on the energy scale of quark-electron compositeness with common constituents. The 95% confidence level lower limits on the compositeness scale vary between 3.3 TeV and 6.1 TeV depending on the assumed form of the effective contact interaction., 6 pages, 2 figures, submitted to PRL

Published
2016

20. Determination of the absolute jet energy scale in the DO calorimeters

Author

B Abbott, M Abolins, B.S Acharya, I Adam, D.L Adams, M Adams, S Ahn, H Aihara, G.A Alves, N Amos, E.W Anderson, R Astur, M.M Baarmand, L Babukhadia, A Baden, V Balamurali, J Balderston, B Baldin, S Banerjee, J Bantly, E Barberis, J.F Bartlett, A Belyaev, S.B Beri, I Bertram, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, N Biswas, G Blazey, S Blessing, P Bloom, A Boehnlein, N.I Bojko, F Borcherding, C Boswell, A Brandt, R Brock, A Bross, D Buchholz, V.S Burtovoi, J.M Butler, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, S.-M Chang, S.V Chekulaev, L.-P Chen, W Chen, S Choi, S Chopra, B.C Choudhary, J.H Christenson, M Chung, D Claes, A.R Clark, W.G Cobau, J Cochran, L Coney, W.E Cooper, C Cretsinger, D Cullen-Vidal, M.A.C Cummings, D Cutts, O.I Dahl, K Davis, K De, K.Del Signore, M Demarteau, D Denisov, S.P Denisov, H.T Diehl, M Diesburg, G.Di Loreto, P Draper, Y Ducros, L.V Dudko, S.R Dugad, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, V.N Evdokimov, T Fahland, M.K Fatyga, S Feher, D Fein, T Ferbel, G Finocchiaro, H.E Fisk, Y Fisyak, E Flattum, G.E Forden, M Fortner, K.C Frame, S Fuess, E Gallas, A.N Galyaev, P Gartung, V Gavrilov, T.L Geld, R.J.Genik II, K Genser, C.E Gerber, Y Gershtein, B Gibbard, S Glenn, B Gobbi, A Goldschmidt, B Gómez, G Gómez, P.I Goncharov, J.L GonzálezSolı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, P.D Grannis, D.R Green, H Greenlee, S Grinstein, P Grudberg, S Grünendahl, G Guglielmo, J.A Guida, J.M Guida, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, K.S Hahn, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, D Hedin, A.P Heinson, U Heintz, R Hernández-Montoya, T Heuring, R Hirosky, J.D Hobbs, B Hoeneisen, J.S Hoftun, F Hsieh, Ting Hu, Tong Hu, T Huehn, A.S Ito, E James, J Jaques, S.A Jerger, R Jesik, J.Z.-Y Jiang, T Joffe-Minor, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, S.Y Jun, C.K Jung, S Kahn, G Kalbfleisch, J.S Kang, D Karmanov, D Karmgard, R Kehoe, M.L Kelly, C.L Kim, S.K Kim, B Klima, C Klopfenstein, J.M Kohli, D Koltick, A.V Kostritskiy, J Kotcher, A.V Kotwal, J Kourlas, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, S Krzywdzinski, S Kuleshov, S Kunori, F Landry, G Landsberg, B Lauer, A Leflat, H Li, J Li, Q.Z Li-Demarteau, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, Y.C Liu, F Lobkowicz, S.C Loken, S Lökös, L Lueking, A.L Lyon, A.K.A Maciel, R.J Madaras, R Madden, L Magaña-Mendoza, V Manankov, S Mani, H.S Mao, R Markeloff, T Marshall, M.I Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, J McDonald, T McKibben, J McKinley, T McMahon, H.L Melanson, M Merkin, K.W Merritt, H Miettinen, A Mincer, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, P Mooney, H da Motta, C Murphy, F Nang, M Narain, V.S Narasimham, A Narayanan, H.A Neal, J.P Negret, P Nemethy, D Norman, L Oesch, V Oguri, E Oliveira, E Oltman, N Oshima, D Owen, P Padley, A Para, Y.M Park, R Partridge, N Parua, M Paterno, B Pawlik, J Perkins, M Peters, R Piegaia, H Piekarz, Y Pischalnikov, B.G Pope, H.B Prosper, S Protopopescu, J Qian, P.Z Quintas, R Raja, S Rajagopalan, O Ramirez, L Rasmussen, S Reucroft, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, A Sánchez-Hernández, A Santoro, L Sawyer, R.D Schamberger, H Schellman, J Sculli, E Shabalina, C Shaffer, H.C Shankar, R.K Shivpuri, M Shupe, H Singh, J.B Singh, V Sirotenko, W Smart, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, M Sosebee, N Sotnikova, M Souza, A.L Spadafora, G Steinbrück, R.W Stephens, M.L Stevenson, D Stewart, F Stichelbaut, D Stoker, V Stolin, D.A Stoyanova, M Strauss, K Streets, M Strovink, A Sznajder, P Tamburello, J Tarazi, M Tartaglia, T.L.T Thomas, J Thompson, T.G Trippe, P.M Tuts, N Varelas, E.W Varnes, D Vititoe, A.A Volkov, A.P Vorobiev, H.D Wahl, G Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, J.A Wightman, S Willis, S.J Wimpenny, J.V.D Wirjawan, J Womersley, E Won, D.R Wood, H Xu, R Yamada, P Yamin, J Yang, T Yasuda, P Yepes, C Yoshikawa, S Youssef, J Yu, Y Yu, Z Zhou, Z.H Zhu, D Zieminska, A Zieminski, E.G Zverev, and A Zylberstejn

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Physics::Instrumentation and Detectors, Detector, Tevatron, FOS: Physical sciences, Jet (particle physics), High Energy Physics - Experiment, Calorimeter, High Energy Physics - Experiment (hep-ex), Pseudorapidity, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Instrumentation
Abstract

The DZERO detector is used to study proton-antiproton collisions at the 1800 GeV and 630 GeV center-of-mass energies available at the Fermilab Tevatron. To measure jets, the detector uses a sampling calorimeter composed of uranium and liquid argon as the passive and active media respectively. Understanding the jet energy calibration is not only crucial for precision tests of QCD, but also for the measurement of particle masses and the determination of physics backgrounds associated with new phenomena. This paper describes the energy calibration of jets observed with the DZERO detector at the two proton-antiproton center-of-mass energies in the transverse energy and pseudorapidity range ET>8 GeV and pseudorapidity, 94 pages with 52 figures (included in the 94 pages)

Published
2016

21. Search for large extra dimensions in dielectron and diphoton production

Author

B. May, Emanuela Barberis, R. J. Madaras, K. Streets, Vipin Bhatnagar, H. Weerts, T. Heuring, S. A. Jerger, Bobby Samir Acharya, H. A. Neal, R. Snihur, Elemer Nagy, Anurag Gupta, A. S. Turcot, A. A. Mayorov, Y. Kulik, Jasvinder A. Singh, Wendy Taylor, A. Patwa, K. M. Mauritz, L. T. Goss, H. C. Shankar, F. Borcherding, V. Sorín, K. Yip, S. Youssef, V. Simak, V. N. Evdokimov, Alexander Leflat, P. Ermolov, M. Strovink, M. Merkin, M. I. Martin, Roger Moore, L. Stutte, Robert Hirosky, Pushpalatha C Bhat, V. S. Burtovoi, A.S. Dyshkant, Robert Kehoe, Gervasio Gomez, David Cutts, V. Zutshi, P. Padley, Alexey Volkov, M. Sosebee, J. Bantly, N.V. Mokhov, A. Bean, Gilvan Alves, Michael Begel, Chris Hays, S. Tentindo-Repond, R. L. McCarthy, H. Haggerty, Raymond Brock, Boaz Klima, J. McDonald, Miguel Mostafa, M. M. Baarmand, Sarah Catherine Eno, L. J. Pan, K. Gounder, James H Cochran, Mitchell Wayne, H. Schellman, J. M. Kohli, A. P. Heinson, D. Norman, A. V. Kozelov, Gustaaf Brooijmans, B. Gibbard, J. Thompson, S. R. Hou, L. Sawyer, K. Genser, Philip Baringer, W. E. Cooper, R. Van Kooten, M. A.C. Cummings, S. Willis, F. Nang, Andrew White, P. Grudberg, S. Feher, D. Shpakov, Z. Zhou, J. Solomon, R. Demina, P. Demine, A. Besson, B. Gómez, J. Rha, H. S. Mao, P. Gartung, Andrew Brandt, R. Engelmann, E. A. Kozlovsky, H.E. Miettinen, Z. H. Zhu, E. Popkov, M. R. Krishnaswamy, R. E. Hall, J. L. González Solís, Z. Casilum, V. A. Bezzubov, J. P. Negret, R. P. Smith, Michael Shupe, Y. Fisyak, C. Klopfenstein, M. Chung, Shashikant Dugad, Marvin Johnson, M. Roco, S. Krzywdzinski, B. Hoeneisen, G. Eppley, A. Baden, A. N. Galyaev, K. M. Chan, Dhiman Chakraborty, G. C. Blazey, G. Gutierrez, M. Buehler, H. Zheng, N. W. Reay, S. Grünendahl, Yu-tin Huang, J. Perkins, J. Sculli, M. Diesburg, J. Yu, E. G. Zverev, J. F. Bartlett, A. Goussiou, A. Para, Neeti Parashar, H. da Motta, D. Zieminska, S. Fuess, J. Estrada, Elizabeth Gallas, R. Partridge, T. McMahon, M. Bhattacharjee, R. Gilmartin, N. R. Stanton, V. Stolin, H. E. Montgomery, Sun Kee Kim, V. Buescher, A. Zylberstejn, Sergey Chekulaev, P. Hanlet, D. Coppage, V. S. Narasimham, L. Groer, Thomas G Trippe, F. Lehner, D. K. Cho, Pm Tuts, S. Duensing, J. M. Hauptman, Cecilia Elena Gerber, Orin I. Dahl, John Rutherfoord, R. Jesik, Haiyan Wang, Nikos Varelas, Meenakshi Narain, E. W. Anderson, A. V. Kotwal, Harrison Prosper, B. Knuteson, D. P. Stoker, V. V. Babintsev, B. Pawlik, Sharon Hagopian, Z. Yu, M. Zielinski, E. Shabalina, V. Gavrilov, Daniel R Claes, S.A. Kahn, Kenneth Johns, F. Stichelbaut, G. Ginther, Daniel Whiteson, Alexander Belyaev, S. Desai, Q. Z. Li, Stephen Wimpenny, P. Rubinov, G. A. Davis, K. W. Merritt, Jianming Qian, D. Casey, A. R. Clark, C. S. Mishra, J. Kotcher, T. Fahland, D. Edmunds, N. Sotnikova, Ron Lipton, B. G. Pope, R. J. Genik, M. Demarteau, G. Graham, A. Zieminski, James C. Green, Patrick Slattery, Allen Mincer, G. Briskin, D. Fein, M. Fortner, T. Marshall, D. A. Stoyanova, D. Denisov, V. Manankov, K. S. Hahn, Sebastian Grinstein, J. Womersley, Ricardo Piegaia, Jeffrey F. Krane, N. Graf, T. Yasuda, Don Lincoln, D. Buchholz, Darien Wood, Wagner Carvalho, E. Flattum, R. Yamada, H. D. Wahl, R. D. Schamberger, Greg Landsberg, L. Lueking, Sw. Banerjee, P. W. Balm, Daniel John Karmgard, M. Zanabria, Winston Ko, S. N. Gurzhiev, A. V. Kostritskiy, Mark Raymond Adams, D. Karmanov, Li Jingyuan, S. Negroni, C. Hebert, N. Amos, Heriberto Castilla-Valdez, Nicholas John Hadley, S. Blessing, S. Chopra, P. A. Rapidis, Sissel Hansen, J. T. White, Ariel Schwartzman, O. Peters, M. Paterno, K. Soustruznik, A. Boehnlein, H. L. Melanson, P. Z. Quintas, Ulrich Heintz, U. Bassler, J. V.D. Wirjawan, Scott Snyder, E. Smith, K. Del Signore, L. Coney, H. Jöstlein, Matthew Jones, N. Sen, J. D. Hobbs, J. Snow, J. H. Christenson, A. P. Vorobiev, E. Kajfasz, R. K. Shivpuri, Stephan Linn, David H. Adams, Gregory R Snow, R. A. Sidwell, N. Oshima, P. van Gemmeren, F. Canelli, M. Abolins, H. E. Fisk, S. Doulas, D. Hedin, Alberto Santoro, J. G.R. Lima, C. Lundstedt, Kaushik De, V. E. Kuznetsov, D. Toback, M. A. Kubantsev, R. W. Stephens, Vasken Hagopian, Suyong Choi, Steve Reucroft, E. J. Ramberg, S. M. Tripathi, Z. M. Wang, A. Bross, H. T. Diehl, G. Steinbrück, V. Oguri, H. Singh, Shuichi Kunori, P. Yamin, V. Vaniev, T. Rockwell, Iain Alexander Bertram, G. Di Loreto, Rajendran Raja, Lev Dudko, J. Ellison, A. K.A. Maciel, Gregorio Bernardi, Peter W. Draper, Michael Rijssenbeek, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, Brad Abbott, Sergey Denisov, A. S. Ito, P. I. Goncharov, J. Warchol, C. Miao, B. Olivier, N. K. Mondal, F. Fleuret, Gordon Watts, V. Sirotenko, O. V. Eroshin, Phillip Gutierrez, Howard Gordon, K. C. Frame, N. Parua, V.V. Abramov, Arnaud Lucotte, Randy Ruchti, A. Jonckheere, Andre Sznajder, Yuri Gershtein, M. D. Peters, L. Oesch, L. Babukhadia, M. H.G. Souza, D. Mihalcea, B. Connolly, Richard Breedon, H. Greenlee, D. A. Wijngaarden, Michael A. Strauss, Suman Bala Beri, J. Linnemann, A. Juste, J. A. Wightman, N. I. Bojko, R. D. Martin, M. L. Stevenson, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, B. Baldin, Y. Ducros, X. C. Meng, Sergey Kuleshov, S. Protopopescu, Victor Daniel Elvira, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), D0, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and D0 (Tevatron, IHEF, IOP, FNWI)

Subjects
Physics, Particle physics, Photon, Planck scale, 010308 nuclear & particles physics, Detector, FOS: Physical sciences, General Physics and Astronomy, Electron, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), symbols.namesake, Extra dimensions, High Energy Physics - Phenomenology (hep-ph), Angular distribution, 0103 physical sciences, symbols, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Large extra dimension, Production (computer science), High Energy Physics::Experiment, 010306 general physics
Abstract

We report a search for effects of large extra spatial dimensions in ppbar collisions at a center-of-mass energy of 1.8 TeV with the DZero detector, using events containing a pair of electrons or photons. The data are in good agreement with the expected background and do not exhibit evidence for large extra dimensions. We set the most restrictive lower limits to date, at the 95% confidence level, on the effective Planck scale between 1.0 TeV and 1.4 TeV for several formalisms and numbers of extra dimensions., Comment: 6 pages, 2 figures, submitted to Phys. Rev. Lett

Published
2016

22. Features of the Curing of Oil-Filled Polyurethane Systems

Author

I. I. Trostyanskaya, E. N. Sotnikova, T. S. Dmitrieva, and A. Yu. Ivanova

Subjects
chemistry.chemical_compound, Materials science, Polymers and Plastics, chemistry, Composite material, Curing (chemistry), Polyurethane
Published
2004

23. Search for 3- and 4-body decays of the scalar top quark in pp- collisions at root s = 1.8 TeV

Author

N. I. Bojko, D. O'Neil, Andrew White, A. Goussiou, A. Baden, Andrei Nomerotski, G. C. Blazey, John Hobbs, J. N. Butler, P. D. Grannis, J. Barreto, M. Buehler, Alexander Belyaev, S. Chopra, Ariel Schwartzman, Melissa Ridel, R. Kehoe, R. Yamada, Patrick Slattery, A. Khanov, N. Parua, V.V. Abramov, M. Jaffré, M. Abolins, H. L. Melanson, Elemer Nagy, N. R. Stanton, L. Duflot, E. W. Anderson, Arnaud Lucotte, C. Luo, Mary Beth Adams, Alexander Kupco, W. Kahl, S. Youssef, J. M. Hauptman, Cecilia Elena Gerber, Ulrich Heintz, D. Edmunds, James C. Green, N. K. Mondal, R. K. Shivpuri, D. Cutts, H. T. Diehl, T. A. Bolton, N.V. Mokhov, Marvin Johnson, H. Jöstlein, Q. Z. Li, Andre Sznajder, D. R. Claes, Frank Filthaut, Randy Ruchti, V. Zutshi, Wagner Carvalho, N. Sotnikova, R. J. Genik, M. I. Martin, Yuri Gershtein, Greg Landsberg, D. Whiteson, A. Boehnlein, A. V. Kozelov, V. V. Babintsev, David H. Adams, M. Diesburg, G. Ginther, Alice Bean, S. Duensing, Wendy Taylor, A. Patwa, P. Krivkova, D. Hedin, Roger Moore, S. Doulas, Sebastian Grinstein, K. Soustruznik, Shuichi Kunori, A. P. Heinson, A. N. Galyaev, V. Vaniev, L. Babukhadia, D. Shpakov, J. Ellison, A. K.A. Maciel, Sa. Jain, S. Fuess, Jianming Qian, A. Abdesselam, V. A. Bezzubov, S. J. De Jong, A. V. Kostritskiy, Michael A. Strauss, Kaushik De, F. Canelli, Volker Buescher, Vladimir Gavrilov, J. P. Negret, P. Demine, R. P. Smith, Gordon Watts, V. Sirotenko, H. Zheng, T. Nunnemann, B. Baldin, D. Coppage, F. Borcherding, D. K. Cho, Y. Arnoud, G. Sajot, D. A. Stoyanova, A. S. Turcot, B. Kothari, Vipin Bhatnagar, K. Gounder, O. V. Eroshin, Y. Song, G. Briskin, M. Strovink, Michael Shupe, Sissel Hansen, Michael Hildreth, S. M. Tripathi, Y. Kulik, R. E. Hall, P. I. Goncharov, R. Illingworth, L. Lueking, R. Partridge, X. Zhang, W. E. Cooper, J. Estrada, A. Leflat, Jeffrey F. Krane, N. A. Naumann, L. Coney, Suman Bala Beri, S. Baffioni, W. M. Lee, A. Kharchilava, Christos Leonidopoulos, Sarah Catherine Eno, S. N. Ahmed, S. Reucroft, Y. A. Yatsunenko, D. Chakraborty, Stephen Wimpenny, Harrison Prosper, Michael Begel, T. Marshall, Sergey Kuleshov, Christophe Royon, C. Miao, B. Olivier, Victor Daniel Elvira, V. L. Malyshev, B. M. Sabirov, A. Juste, F. Nang, E. Popkov, Richard B. Lipton, J. Womersley, Arnaud Duperrin, Heriberto Castilla-Valdez, S. Desai, V. M. Abazov, H. D. Wahl, D. Bauer, H. S. Mao, D. Fein, B. Connolly, Richard Breedon, M. Zanabria, Winston Ko, Pushpalatha C Bhat, U. Bassler, Jong-Sung Yu, V. Simak, C. Han, Don Lincoln, P. W. Balm, P. Padley, S. Tentindo-Repond, D. Karmanov, Alexey Volkov, A. Stone, Daniel John Karmgard, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, C. Hebert, M. Merkin, D. A. Wijngaarden, T. Yasuda, Mitchell Wayne, H. Schellman, J. M. Kohli, Ia Iashvili, T. C. Bacon, D. Mihalcea, E. Kajfasz, K. Bos, Zeno Dixon Greenwood, Stefan Grünendahl, Alberto Santoro, Philip Baringer, Raymond Brock, V. N. Evdokimov, M. A.C. Cummings, Boaz Klima, Bobby Samir Acharya, H. A. Neal, Jing Li, S. Banerjee, Mossadek Talby, B. Gómez, R. Beuselinck, D. Casey, J. T. Linnemann, V. Sorín, P. M. Tuts, V. E. Kuznetsov, P. Rubinov, K. Yip, S. Krzywdzinski, J. Kotcher, Shashikant Dugad, Harald Fox, D. P. Stoker, B. G. Pope, S. Willis, L. Stutte, A.S. Dyshkant, B. Hoeneisen, Lee Sawyer, N. Graf, Y. D. Mutaf, Robert Hirosky, H. E. Fisk, A. Zylberstejn, F. Fleuret, Elizaveta Shabalina, A. M. Kalinin, F. Lehner, H. Greenlee, Z. Zhou, J. Solomon, R. Demina, A. Bross, O. Peters, G. A. Davis, Elizabeth Gallas, T. McMahon, Serban Protopopescu, G. Gutierrez, Gilvan Alves, V. S. Narasimham, L. Groer, A. A. Mayorov, J. Snow, M. Gao, J. T. Eltzroth, S.A. Kahn, R. Jesik, K. A. Johns, M. Demarteau, G. Bernardi, V. Oguri, Gustaaf Brooijmans, J. Warchol, P. Yamin, G. D. Alexeev, Flera Rizatdinova, P. A. Rapidis, A. Jonckheere, A. P. Vorobiev, Stephan Linn, M. Sosebee, N. Oshima, Daria Zieminska, R. D. Schamberger, M. A. Kubantsev, Freya Blekman, Andrew Brandt, R. Engelmann, E. A. Kozlovsky, H.E. Miettinen, E. G. Zverev, Meenakshi Narain, G. Eppley, H. da Motta, J. G.R. Lima, S. N. Gurzhiev, A. S. Ito, Viatcheslav Stolin, C. Lundstedt, Carlos Avila, Sabine Crépé-Renaudin, Neeti Parashar, R. L. McCarthy, M. Zielinski, Suyong Choi, D. Denisov, J. M. Heinmiller, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, M. H.G. Souza, H. E. Montgomery, R. Van Kooten, A. Besson, P.F. Ermolov, A. Zieminski, V. S. Burtovoi, R. A. Sidwell, R. J. Madaras, D. Buchholz, Florian Beaudette, J. Huang, Gregory R Snow, G. Steinbrück, K. Genser, M. B. Przybycien, Rajendran Raja, Phillip Gutierrez, M. A. Strang, Emanuela Barberis, Vasken Hagopian, H. Weerts, Z. M. Wang, Brad Abbott, Lev Dudko, F. Villeneuve-Seguier, Tulika Bose, Pierre Petroff, H. Haggerty, M. Fortner, N. W. Reay, S. Fu, Q. Xu, Darien Wood, Nicholas John Hadley, S. Blessing, Scott Snyder, M. Bhattacharjee, T. G. Trippe, Howard Gordon, Yu-tin Huang, Nikos Varelas, Bing Zhou, Sharon Hagopian, K. Papageorgiou, S. P. Denisov, M. R. Krishnaswamy, R. Piegaia, A. R. Clark, A. Alton, Sergey Chekulaev, K. M. Chan, K. W. Merritt, J. F. Bartlett, V. Manankov, and D0 (Tevatron, IHEF, IOP, FNWI)

Subjects
Quark, Physics, Particle physics, Top quark, Nuclear and High Energy Physics, Muon, 010308 nuclear & particles physics, Scalar (mathematics), High Energy Physics::Phenomenology, 01 natural sciences, Lightest Supersymmetric Particle, Nuclear physics, 0103 physical sciences, Neutralino, High Energy Physics::Experiment, Fermilab, 010306 general physics, Minimal Supersymmetric Standard Model
Abstract

We have searched for the signature of 3- and 4-body decays of pair-produced scalar top quarks (stop) in the inclusive final state containing an electron, a muon, and significant missing transverse energy using a sample of p p events corresponding to 108.3 pb−1 of data collected with the DO detector at Fermilab. The search is done in the framework of the minimal supersymmetric standard model assuming that the neutralino ( χ 0 1 ) is the lightest supersymmetric particle and is stable. No evidence for a signal is found and we derive cross-section upper limits as a function of stop (t) and neutralino masses in different decay scenarios leading to the blν χ 0 1 final state.

Published
2004

24. The A dependence of fast-particle spectra in π +, K +, and p interactions with Al and Au targets at 250 GeV/c

Author

M. D. Tabidze, L. A. Tikhonova, N. Sotnikova, A.V. Tkabladze, A. G. Tomaradze, K. Dziunikowska, L. G. Sveshnikova, K. Olkiewicz, R. Sh. Hakobyan, F. Verbeure, E. A. De Wolf, Sh. M. Yandarbiev, S. S. Mehrabyan, A. M. F. Endler, G. R. Gulkanyan, N. M. Agababyan, W. Kittel, M. R. Atayan, Z.V. Metreveli, F.K. Rizatdinova, Z. Sh. Garutchava, Lidia Smirnova, S. A. Zotkin, and Danuta Kisielewska

Subjects
Physics, Nuclear and High Energy Physics, Meson, Hadron, Quark model, Elementary particle, Atomic and Molecular Physics, and Optics, Spectral line, Nuclear physics, symbols.namesake, Pion, symbols, Feynman diagram, High Energy Physics::Experiment, Boson
Abstract

The A dependence of charged-particle spectra in π+, K+, and p interactions with Al and Au targets at 250 GeV/c are presented and compared to predictions of the Quark-Gluon String Model (QGSM). It is shown that the A dependence of invariant inclusive charged-particle spectra on the Feynman variable x is very weak between Al and Au targets. The QGSM shows a larger difference between fast-particle spectra for both Al and Au targets and different beam particles. The QGSM prediction for the leading-particle spectrum over an energy range from 250 GeV to 10 TeV in pAu(Pb) reactions is in a reasonable agreement with the results of NA22 data and a cosmic-ray experiment.

Published
2003

25. Hard single diffraction in p̄p collisions at s=630 and 1800 GeV

Author

A. N. Galyaev, D. K. Cho, Y. Arnoud, M. Merkin, R. Illingworth, Raymond Brock, Boaz Klima, R. Beuselinck, S. Willis, W. E. Cooper, S. Duensing, G. Eppley, Arnaud Duperrin, M. A. Strang, S. J. De Jong, Jong-Sung Yu, C. S. Mishra, S. Fu, B. Kothari, N.V. Mokhov, H. da Motta, J. G.R. Lima, M. Sosebee, V. M. Abazov, M. I. Martin, K. W. Merritt, Elemer Nagy, Vasken Hagopian, L. Lueking, H. Weerts, W. Kahl, Andrew White, J. F. Bartlett, A. P. Heinson, V. Manankov, E. W. Anderson, Q. Xu, Lev Dudko, T. G. Trippe, A. S. Ito, P. Pétroff, E. Kajfasz, E. Popkov, R. E. Hall, B. Pawlik, Q. Z. Li, Sharon Hagopian, K. Papageorgiou, Wendy Taylor, T. Rockwell, Iain Alexander Bertram, N. Parua, A. Goussiou, Roger Moore, S. Fuess, Michael Rijssenbeek, D. Mihalcea, D. Casey, S. Krzywdzinski, Sebastian Grinstein, B. Olivier, Neeti Parashar, J. Kotcher, A. Patwa, Anurag Gupta, R. Van Kooten, Z. M. Wang, L. Babukhadia, Vladimir Gavrilov, R. Piegaia, V. Oguri, Gordon Watts, R. Snihur, P. M. Tuts, V. E. Kuznetsov, Harald Fox, A. Zylberstejn, Shuichi Kunori, N. Graf, R. W. Stephens, Robert Hirosky, A. V. Kostritskiy, V. Sirotenko, Andrew Brandt, A. Abdesselam, A. M. Kalinin, H. E. Fisk, L. J. Pan, Z. Zhou, J. Solomon, Vipin Bhatnagar, K. Gounder, A. Alton, Andrei Nomerotski, John Hobbs, F. Lehner, H. Greenlee, V. N. Evdokimov, Gustaaf Brooijmans, B. M. Sabirov, O. V. Eroshin, Y. Song, Phillip Gutierrez, A. Bross, Sissel Hansen, T. Nunnemann, B. Baldin, E. A. Kozlovsky, H.E. Miettinen, D. Edmunds, D. Bauer, V. Vaniev, Howard Gordon, K. C. Frame, Chris Hays, M. Zielinski, R. Partridge, X. Zhang, J. Barreto, A. Khanov, R. Demina, A. Zieminski, G. A. Davis, L. Coney, G. Gutierrez, V. A. Bezzubov, V.V. Abramov, N. Sen, R. Gilmartin, Serban Protopopescu, A. Besson, J. P. Negret, Y. Ducros, V. L. Malyshev, Gilvan Alves, Heriberto Castilla-Valdez, R. L. McCarthy, J. Warchol, Andre Sznajder, R. P. Smith, M. Gao, M. Bhattacharjee, H. S. Mao, S. P. Denisov, W. M. Lee, A. Kharchilava, B. G. Pope, P. Demine, V. S. Narasimham, L. Groer, Yuri Gershtein, J. M. Hauptman, Cecilia Elena Gerber, Arnaud Lucotte, Michael Shupe, Michael Hildreth, K. M. Chan, Dhiman Chakraborty, T. Fahland, H. Zheng, S. N. Gurzhiev, M. R. Krishnaswamy, D. Fein, V. Simak, Alexander Kupco, J. Estrada, Sergey Kuleshov, E. G. Zverev, V. V. Babintsev, D. Coppage, B. Abbott, G. Ginther, A. A. Mayorov, Don Lincoln, P. Padley, V. Zutshi, Alexey Volkov, Y. A. Yatsunenko, P. Krivkova, A. R. Clark, N. Sotnikova, Jianming Qian, P. W. Balm, A. Stone, Daniel John Karmgard, A. V. Kotwal, Harrison Prosper, M. Roco, R. J. Genik, Elizabeth Gallas, T. McMahon, Randy Ruchti, Mitchell Wayne, H. Schellman, J. M. Kohli, Victor Daniel Elvira, Sergey Chekulaev, J. Snow, C. Hebert, G. Briskin, H. L. Melanson, N. A. Naumann, Stefan Grünendahl, R. A. Sidwell, E. Flattum, Christophe Royon, Jeffrey F. Krane, Viatcheslav Stolin, N. I. Bojko, Mossadek Talby, B. Gómez, Ulrich Heintz, Marc M Baarmand, S. Reucroft, J. H. Christenson, Meenakshi Narain, D. O'Neil, S. Chopra, H. D. Wahl, Elizaveta Shabalina, Shashikant Dugad, C. Lundstedt, M. Strovink, David H. Adams, M. Zanabria, Winston Ko, Carlos Avila, Jing Li, Michael A. Strauss, Alice Bean, Sabine Crépé-Renaudin, H. Jöstlein, M. Jaffré, Ariel Schwartzman, E. Smith, U. Bassler, F. Blekman, Suyong Choi, O. Peters, F. Canelli, Volker Buescher, J. T. Eltzroth, Melissa Ridel, R. Kehoe, J. T. White, G. Steinbrück, J. N. Butler, P. D. Grannis, R. Jesik, Laurent Duflot, T. Yasuda, Frank Filthaut, D. Hedin, Rajendran Raja, K. A. Johns, Alberto Santoro, Seong Keun Kim, M. Diesburg, A. Leflat, S. Youssef, P. Rubinov, Gregorio Bernardi, Suman Bala Beri, D. Denisov, J. M. Heinmiller, Srinivasan Rajagopalan, D. Shpakov, A. Juste, Bobby Samir Acharya, H. A. Neal, S. Tentindo-Repond, Hal Evans, Thomas Ferbel, T. C. Bacon, J. T. Linnemann, V. Sorín, B. Connolly, K. Yip, Richard Breedon, D. P. Stoker, L. Stutte, A.S. Dyshkant, Alexander Belyaev, Philip Baringer, Patrick Slattery, D. A. Stoyanova, A. S. Turcot, S. Banerjee, Zeno Dixon Greenwood, D. A. Wijngaarden, Michael Begel, K. Bos, K. Genser, M. Buehler, M. Chung, R. D. Schamberger, Y. Fisyak, N. R. Stanton, Christos Leonidopoulos, J. Womersley, Marvin Johnson, M. Abolins, D. Karmanov, Z. Casilum, Ia Iashvili, A. V. Kozelov, N. K. Mondal, H. T. Diehl, T. A. Bolton, H. Singh, D. Whiteson, A. Boehnlein, J. Ellison, A. K.A. Maciel, Sa. Jain, P. I. Goncharov, C. Miao, Pushpalatha C Bhat, M. H.G. Souza, H. E. Montgomery, M. A.C. Cummings, B. Hoeneisen, D. Buchholz, Lee Sawyer, Gregory R Snow, P.F. Ermolov, B. Knuteson, V. S. Burtovoi, R. J. Madaras, Haiyan Wang, S.A. Kahn, M. Demarteau, F. Borcherding, S. Desai, G. Sajot, E. J. Ramberg, P. Yamin, G. D. Alexeev, Flera Rizatdinova, Miguel Mostafa, Sarah Catherine Eno, P. A. Rapidis, François Fleuret, F. Nang, A. Jonckheere, A. P. Vorobiev, Richard B. Lipton, F. Villeneuve-Seguier, Stephan Linn, A. Baden, N. Oshima, Daria Zieminska, G. C. Blazey, M. A. Kubantsev, Stephen Wimpenny, T. Marshall, R. Yamada, Darien Wood, Nicholas John Hadley, S. Blessing, Scott Snyder, R. K. Shivpuri, John Rutherfoord, D. R. Claes, C. Luo, Mary Beth Adams, S. Doulas, James C. Green, Kaushik De, Emanuela Barberis, D. Cutts, Wagner Carvalho, Greg Landsberg, L. T. Goss, Charles Leggett, Y. Kulik, M. Paterno, K. Soustruznik, Tulika Bose, H. Haggerty, F. Beaudette, M. B. Przybycien, S. M. Tripathi, R. Engelmann, S. N. Ahmed, M. Fortner, N. W. Reay, Y. D. Mutaf, Yu-tin Huang, Nikos Varelas, Bing Zhou, and L. S. Vertogradov

Subjects
Diffraction, Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Detector, Empty set, HERA, Jet (particle physics), 01 natural sciences, Nuclear physics, Pomeron, 0103 physical sciences, Momentum loss, Rapidity, High Energy Physics::Experiment, 010306 general physics
Abstract

Using the D empty set detector, we have studied events produced in (p) over barp collisions that contain large forward regions with very little energy deposition ("rapidity gaps") and concurrent jet production at center-of-mass energies of roots = 630 and 1800 GeV. The fraction of events with forward or central jets associated with rapidity gaps is compared to predictions for hard diffraction. We also extract the momentum loss for scattered protons in such processes. (C) 2002 Elsevier Science B.V. All rights reserved.

Published
2002
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26. The inclusive jet cross section in p collisions at =1.8 TeV using the k⊥ algorithm

Author

V.M Abazov, B Abbott, A Abdesselam, M Abolins, V Abramov, B.S Acharya, D.L Adams, M Adams, S.N Ahmed, G.D Alexeev, A Alton, G.A Alves, N Amos, E.W Anderson, Y Arnoud, C Avila, M.M Baarmand, V.V Babintsev, L Babukhadia, T.C Bacon, A Baden, B Baldin, P.W Balm, S Banerjee, E Barberis, P Baringer, J Barreto, J.F Bartlett, U Bassler, D Bauer, A Bean, F Beaudette, M Begel, A Belyaev, S.B Beri, G Bernardi, I Bertram, A Besson, R Beuselinck, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, F Blekman, S Blessing, A Boehnlein, N.I Bojko, F Borcherding, K Bos, T Bose, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, V.S Burtovoi, J.M Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, K.M Chan, S.V Chekulaev, D.K Cho, S Choi, S Chopra, J.H Christenson, M Chung, D Claes, A.R Clark, L Coney, B Connolly, W.E Cooper, D Coppage, S Crépé-Renaudin, M.A.C Cummings, D Cutts, G.A Davis, K Davis, K De, S.J de Jong, K Del Signore, M Demarteau, R Demina, P Demine, D Denisov, S.P Denisov, S Desai, H.T Diehl, M Diesburg, S Doulas, Y Ducros, L.V Dudko, S Duensing, L Duflot, S.R Dugad, A Duperrin, A Dyshkant, D Edmunds, J Ellison, J.T Eltzroth, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, J Estrada, H Evans, V.N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, F Filthaut, H.E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, H Fox, K.C Frame, S Fu, S Fuess, E Gallas, A.N Galyaev, M Gao, V Gavrilov, R.J Genik, K Genser, C.E Gerber, Y Gershtein, R Gilmartin, G Ginther, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, G Graham, P.D Grannis, J.A Green, H Greenlee, Z.D Greenwood, S Grinstein, L Groer, S Grünendahl, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, C Hays, C Hebert, D Hedin, J.M Heinmiller, A.P Heinson, U Heintz, M.D Hildreth, R Hirosky, J.D Hobbs, B Hoeneisen, Y Huang, I Iashvili, R Illingworth, A.S Ito, M Jaffré, S Jain, R Jesik, K Johns, M Johnson, A Jonckheere, H Jöstlein, A Juste, W Kahl, S Kahn, E Kajfasz, A.M Kalinin, D Karmanov, D Karmgard, R Kehoe, A Khanov, A Kharchilava, S.K Kim, B Klima, B Knuteson, W Ko, J.M Kohli, A.V Kostritskiy, J Kotcher, B Kothari, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, P Krivkova, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, A Kupco, V.E Kuznetsov, G Landsberg, W.M Lee, A Leflat, C Leggett, F Lehner, C Leonidopoulos, J Li, Q.Z Li, X Li, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, A Lucotte, L Lueking, C Lundstedt, C Luo, A.K.A Maciel, R.J Madaras, V.L Malyshev, V Manankov, H.S Mao, T Marshall, M.I Martin, K.M Mauritz, A.A Mayorov, R McCarthy, T McMahon, H.L Melanson, M Merkin, K.W Merritt, C Miao, H Miettinen, D Mihalcea, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, R.W Moore, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V.S Narasimham, N.A Naumann, H.A Neal, J.P Negret, S Negroni, T Nunnemann, D O'Neil, V Oguri, B Olivier, N Oshima, P Padley, L.J Pan, K Papageorgiou, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, O Peters, P Pétroff, R Piegaia, B.G Pope, E Popkov, H.B Prosper, S Protopopescu, M.B Przybycien, J Qian, R Raja, S Rajagopalan, E Ramberg, P.A Rapidis, N.W Reay, S Reucroft, M Ridel, M Rijssenbeek, F Rizatdinova, T Rockwell, M Roco, C Royon, P Rubinov, R Ruchti, J Rutherfoord, B.M Sabirov, G Sajot, A Santoro, L Sawyer, R.D Schamberger, H Schellman, A Schwartzman, N Sen, E Shabalina, R.K Shivpuri, D Shpakov, M Shupe, R.A Sidwell, V Simak, H Singh, J.B Singh, V Sirotenko, P Slattery, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, Y Song, V Sorı́n, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N.R Stanton, G Steinbrück, R.W Stephens, F Stichelbaut, D Stoker, V Stolin, A Stone, D.A Stoyanova, M.A Strang, M Strauss, M Strovink, L Stutte, A Sznajder, M Talby, W Taylor, S Tentindo-Repond, S.M Tripathi, T.G Trippe, A.S Turcot, P.M Tuts, V Vaniev, R Van Kooten, N Varelas, L.S Vertogradov, F Villeneuve-Seguier, A.A Volkov, A.P Vorobiev, H.D Wahl, H Wang, Z.-M Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, D Whiteson, D.A Wijngaarden, S Willis, S.J Wimpenny, J Womersley, D.R Wood, Q Xu, R Yamada, P Yamin, T Yasuda, Y.A Yatsunenko, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, X Zhang, H Zheng, B Zhou, Z Zhou, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E.G Zverev, and A Zylberstejn

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Tevatron, Jet (particle physics), 7. Clean energy, 01 natural sciences, law.invention, Cross section (physics), law, Pseudorapidity, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Algorithm
Abstract

The central inclusive jet cross section has been measured using a successive-combination algorithm for reconstruction of jets. The measurement uses 87.3 pb^{-1} of data collected with the D0 detector at the Fermilab Tevatron ppbar Collider during 1994-1995. The cross section, reported as a function of transverse momentum (pT>60 GeV) in the central region of pseudorapidity (|\eta

Published
2002

27. Measurement of the ratio of differential cross sections for W and Z boson production as a function of transverse momentum in p collisions at =1.8 TeV

Author

V.M Abazov, B Abbott, A Abdesselam, M Abolins, V Abramov, B.S Acharya, D.L Adams, M Adams, S.N Ahmed, G.D Alexeev, G.A Alves, N Amos, E.W Anderson, Y Arnoud, M.M Baarmand, V.V Babintsev, L Babukhadia, T.C Bacon, A Baden, B Baldin, P.W Balm, S Banerjee, E Barberis, P Baringer, J Barreto, J.F Bartlett, U Bassler, D Bauer, A Bean, F Beaudette, M Begel, A Belyaev, S.B Beri, G Bernardi, I Bertram, A Besson, R Beuselinck, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, S Blessing, A Boehnlein, N.I Bojko, F Borcherding, K Bos, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, V.S Burtovoi, J.M Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, K.M Chan, S.V Chekulaev, D.K Cho, S Choi, S Chopra, J.H Christenson, M Chung, D Claes, A.R Clark, J Cochran, L Coney, B Connolly, W.E Cooper, D Coppage, S Crépé-Renaudin, M.A.C Cummings, D Cutts, G.A Davis, K Davis, K De, S.J de Jong, K Del Signore, M Demarteau, R Demina, P Demine, D Denisov, S.P Denisov, S Desai, H.T Diehl, M Diesburg, S Doulas, Y Ducros, L.V Dudko, S Duensing, L Duflot, S.R Dugad, A Duperrin, A Dyshkant, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, J Estrada, H Evans, V.N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, F Filthaut, H.E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, H Fox, K.C Frame, S Fu, S Fuess, E Gallas, A.N Galyaev, M Gao, V Gavrilov, R.J Genik, K Genser, C.E Gerber, Y Gershtein, R Gilmartin, G Ginther, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, G Graham, P.D Grannis, J.A Green, H Greenlee, Z.D Greenwood, S Grinstein, L Groer, S Grünendahl, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, C Hays, C Hebert, D Hedin, J.M Heinmiller, A.P Heinson, U Heintz, T Heuring, M.D Hildreth, R Hirosky, J.D Hobbs, B Hoeneisen, Y Huang, R Illingworth, A.S Ito, M Jaffré, S Jain, R Jesik, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, A Juste, W Kahl, S Kahn, E Kajfasz, A.M Kalinin, D Karmanov, D Karmgard, Z Ke, R Kehoe, A Khanov, A Kharchilava, S.K Kim, B Klima, B Knuteson, W Ko, J.M Kohli, A.V Kostritskiy, J Kotcher, B Kothari, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, P Krivkova, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, A Kupco, V.E Kuznetsov, G Landsberg, W.M Lee, A Leflat, C Leggett, F Lehner, J Li, Q.Z Li, X Li, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, A Lucotte, L Lueking, C Lundstedt, C Luo, A.K.A Maciel, R.J Madaras, V.L Malyshev, V Manankov, H.S Mao, T Marshall, M.I Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, T McMahon, H.L Melanson, M Merkin, K.W Merritt, C Miao, H Miettinen, D Mihalcea, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, R.W Moore, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V.S Narasimham, H.A Neal, J.P Negret, S Negroni, T Nunnemann, D O'Neil, V Oguri, B Olivier, N Oshima, P Padley, L.J Pan, K Papageorgiou, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, M Peters, O Peters, P Pétroff, R Piegaia, B.G Pope, E Popkov, H.B Prosper, S Protopopescu, J Qian, R Raja, S Rajagopalan, E Ramberg, P.A Rapidis, N.W Reay, S Reucroft, M Ridel, M Rijssenbeek, F Rizatdinova, T Rockwell, M Roco, C Royon, P Rubinov, R Ruchti, J Rutherfoord, B.M Sabirov, G Sajot, A Santoro, L Sawyer, R.D Schamberger, H Schellman, A Schwartzman, N Sen, E Shabalina, R.K Shivpuri, D Shpakov, M Shupe, R.A Sidwell, V Simak, H Singh, J.B Singh, V Sirotenko, P Slattery, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, V Sorı́n, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N.R Stanton, G Steinbrück, R.W Stephens, F Stichelbaut, D Stoker, V Stolin, A Stone, D.A Stoyanova, M Strauss, M Strovink, L Stutte, A Sznajder, M Talby, W Taylor, S Tentindo-Repond, S.M Tripathi, T.G Trippe, A.S Turcot, P.M Tuts, V Vaniev, R Van Kooten, N Varelas, L.S Vertogradov, F Villeneuve-Seguier, A.A Volkov, A.P Vorobiev, H.D Wahl, H Wang, Z.-M Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, D Whiteson, J.A Wightman, D.A Wijngaarden, S Willis, S.J Wimpenny, J Womersley, D.R Wood, Q Xu, R Yamada, P Yamin, T Yasuda, Y.A Yatsunenko, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, X Zhang, H Zheng, B Zhou, Z Zhou, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E.G Zverev, A Zylberstejn, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), D0, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, FOS: Physical sciences, Perturbative QCD, Observable, Function (mathematics), 16. Peace & justice, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Transverse momentum, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Accelerator Physics, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Differential (mathematics)
Abstract

We report on a measurement of the ratio of the differential cross sections for W and Z boson production as a function of transverse momentum in proton-antiproton collisions at sqrt(s) = 1.8 TeV. This measurement uses data recorded by the D0 detector at the Fermilab Tevatron in 1994-1995. It represents the first investigation of a proposal that ratios between W and Z observables can be calculated reliably using perturbative QCD, even when the individual observables are not. Using the ratio of differential cross sections reduces both experimental and theoretical uncertainties, and can therefore provide smaller overall uncertainties in the measured mass and width of the W boson than current methods used at hadron colliders., Comment: 10 pages, 2 figures, to be published in Physics Letters B

Published
2001

28. Quasi-Model-Independent Search for New HighpTPhysics at D0

Author

P. Demine, S. Youssef, V. Zutshi, K. S. Hahn, D. Cutts, D. Shpakov, H. Zheng, P. Hanlet, S. Krzywdzinski, Wagner Carvalho, Greg Landsberg, Andrew White, T. Nunnemann, B. Baldin, D. Coppage, Y. Ducros, X. C. Meng, J. A. Wightman, N. I. Bojko, A. Zylberstejn, R. D. Martin, Sergey Kuleshov, Victor Daniel Elvira, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, M. Paterno, K. Soustruznik, M. Buehler, Alexander Belyaev, F. Lehner, N. Parua, V.V. Abramov, H. Greenlee, F. Borcherding, P. Yamin, Robert Hirosky, M. Jaffré, Patrick Slattery, S. Reucroft, S. Desai, G. Steinbrück, V. Oguri, E. G. Zverev, D. Bauer, Miguel Mostafa, R. Snihur, John Hobbs, N. R. Stanton, Rajendran Raja, M. M. Baarmand, H. L. Melanson, P. Z. Quintas, Erik Ramberg, T. McMahon, G. Eppley, H. D. Wahl, Arnaud Lucotte, Sarah Catherine Eno, M. Fortner, N. W. Reay, A. Bross, O. Peters, G. A. Davis, Serban Protopopescu, F. Nang, J. H. Christenson, Brad Abbott, Meenakshi Narain, Pierre Petroff, J. Perkins, Yu-tin Huang, Gustaaf Brooijmans, J. Warchol, Ulrich Heintz, H. Jöstlein, M. Zanabria, Winston Ko, Nikos Varelas, Randy Ruchti, R. K. Shivpuri, Frank Filthaut, A. N. Galyaev, D. Fein, M. Diesburg, G. Gutierrez, Gilvan Alves, V. S. Narasimham, L. Groer, Thomas G Trippe, H. da Motta, J. G.R. Lima, Bobby Samir Acharya, H. A. Neal, Howard Gordon, David H. Adams, K. C. Frame, H. E. Fisk, D. K. Cho, Peter W. Draper, Pushpalatha C Bhat, S. N. Gurzhiev, A. Baden, C. S. Mishra, R. Jesik, G. C. Blazey, T. Fahland, R. Illingworth, P. van Gemmeren, D. P. Stoker, K. Gounder, L. J. Pan, R. Yamada, W. E. Cooper, S. Duensing, Don Lincoln, F. Canelli, P. W. Balm, S. Doulas, J. Snow, Daniel R Claes, Vasken Hagopian, M. A.C. Cummings, A. S. Ito, P. I. Goncharov, H. Weerts, T. Yasuda, Z. M. Wang, Emanuela Barberis, Wendy Taylor, Vipin Bhatnagar, Daniel John Karmgard, K. M. Chan, M. Sosebee, Dhiman Chakraborty, Kaushik De, D. A. Stoyanova, A. S. Turcot, A. V. Kostritskiy, C. Hebert, S. P. Denisov, John Rutherfoord, Lev Dudko, J. T. Linnemann, V. Sorín, B. Hoeneisen, J. V.D. Wirjawan, Lee Sawyer, A. Patwa, Allan G Clark, Roger Moore, L. Lueking, R. Partridge, E. Flattum, M. R. Krishnaswamy, Gervasio Gomez, C. Luo, Mary Beth Adams, C. Miao, Viatcheslav Stolin, B. Olivier, E. Kajfasz, Sissel Hansen, K. Yip, E. Popkov, B. G. Pope, M. Bhattacharjee, Z. Zhou, J. Solomon, Michael Begel, K. Del Signore, Matthew Jones, S. Chopra, S. Fuess, J. Rha, C. Lundstedt, A. Para, L. T. Goss, M. H.G. Souza, Charles Leggett, James C. Green, Elizabeth Gallas, Haiyan Wang, F. Fleuret, H. S. Mao, Sergey Chekulaev, S.A. Kahn, Andrew Brandt, Sharon Hagopian, R. Engelmann, M. Merkin, L. Stutte, Jinhong Yu, Ariel Schwartzman, E. Smith, R. Van Kooten, Vladimir Gavrilov, M. Abolins, M. Demarteau, S. M. Tripathi, Jing Li, S. Feher, K. Genser, A. Besson, P. M. Tuts, V. E. Kuznetsov, L. Coney, Y. Fisyak, E. A. Kozlovsky, H.E. Miettinen, Gordon Watts, Melissa Ridel, A.S. Dyshkant, V. Sirotenko, F. Stichelbaut, Heriberto Castilla-Valdez, R. W. Stephens, C. Klopfenstein, K. W. Merritt, Elizaveta Shabalina, L. Duflot, N. Sen, Marvin Johnson, O. V. Eroshin, G. Graham, A. Zieminski, Phillip Gutierrez, K. Papageorgiou, N. K. Mondal, H. T. Diehl, J. F. Bartlett, Stephen Wimpenny, N.V. Mokhov, H. E. Montgomery, H. Singh, V. Manankov, A. V. Kozelov, T. Rockwell, Iain Alexander Bertram, B. Pawlik, J. T. White, A. Boehnlein, Michael Rijssenbeek, K. A. Johns, A. P. Heinson, M. Gao, T. Marshall, R. Piegaia, A. A. Mayorov, Neeti Parashar, P. A. Rapidis, J. Ellison, Raymond Brock, Boaz Klima, S. A. Jerger, V. N. Evdokimov, R. Beuselinck, D. Casey, J. Kotcher, B. Knuteson, R. A. Sidwell, Alexander Leflat, A. Jonckheere, A. Abdesselam, A. P. Vorobiev, Chris Hays, M. Strovink, R. E. Hall, J. L. González Solís, Darien Wood, V. A. Bezzubov, Nicholas John Hadley, J. P. Negret, R. P. Smith, M. Zielinski, N. Sotnikova, Stephan Linn, R. J. Genik, V. Buescher, Z. Casilum, U. Bassler, H. Haggerty, Suyong Choi, A. Bean, Ron Lipton, S. Blessing, D. Norman, N. Graf, M. I. Martin, N. Oshima, Daria Zieminska, Scott Snyder, R. D. Schamberger, Michael Shupe, J. Womersley, Z. Yu, R. L. McCarthy, Daniel Whiteson, E. W. Anderson, M. A. Kubantsev, J. Estrada, S. Willis, R. Gilmartin, S. Tentindo-Repond, G. Di Loreto, J. McDonald, Q. Z. Li, A. V. Kotwal, Harrison Prosper, D. Karmanov, Gregorio Bernardi, D. Denisov, Philip Baringer, M. Roco, S. Negroni, D. Buchholz, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, Alberto Santoro, Sebastian Grinstein, S. Banerjee, Seong Keun Kim, R. J. Madaras, D. Toback, V. Simak, T. C. Bacon, P. Padley, R. Demina, P. Rubinov, J. M. Hauptman, Cecilia Elena Gerber, Alexey Volkov, James H Cochran, V. V. Babintsev, D. Hedin, G. Ginther, A. K.A. Maciel, M. Chung, Anna Goussiou, Jianming Qian, N. Amos, Mitchell Wayne, H. Schellman, J. M. Kohli, G. Briskin, Jeffrey F. Krane, Gregory R Snow, Stefan Grünendahl, J. Thompson, K. M. Mauritz, P.F. Ermolov, S. R. Hou, B. Gómez, V. S. Burtovoi, Shashikant Dugad, Shuichi Kunori, V. Vaniev, B. May, Anurag Gupta, Michael A. Strauss, Jasvinder A. Singh, Suman Bala Beri, T. Heuring, A. Juste, D. Mihalcea, Elemer Nagy, B. Connolly, Richard Breedon, Y. Kulik, D. A. Wijngaarden, D. Edmunds, Andre Sznajder, Yuri Gershtein, M. D. Peters, L. Oesch, and L. Babukhadia

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Tevatron, General Physics and Astronomy, 01 natural sciences, Standard Model, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Sensitivity (control systems), Electroweak scale, Nuclear Experiment, 010306 general physics
Abstract

We apply a quasi-model-independent strategy ("Sleuth") to search for new high p_T physics in approximately 100 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV collected by the DZero experiment during 1992-1996 at the Fermilab Tevatron. We systematically analyze many exclusive final states and demonstrate sensitivity to a variety of models predicting new phenomena at the electroweak scale. No evidence of new high p_T physics is observed.

Published
2001

29. Ratio of Jet Cross Sections ats=630GeV and 1800 GeV

Author

K. M. Mauritz, P.F. Ermolov, D. P. Stoker, V. S. Burtovoi, M. Chung, T. Heuring, M. Bhattacharjee, D. Edmunds, P. A. Rapidis, Sharon Hagopian, A. Jonckheere, A. P. Vorobiev, Stephan Linn, C. S. Mishra, Andre Sznajder, Yuri Gershtein, M. D. Peters, N. Oshima, Daria Zieminska, R. Piegaia, D. Shpakov, P. Demine, H. Zheng, P. Hanlet, D. Coppage, R. D. Schamberger, D. A. Stoyanova, A. S. Turcot, Howard Gordon, K. C. Frame, S. Reucroft, A. A. Mayorov, R. L. McCarthy, M. Strovink, Elemer Nagy, L. Oesch, L. Babukhadia, T. Fahland, M. A. Kubantsev, Robert Hirosky, Pushpalatha C Bhat, Gervasio Gomez, D. Buchholz, Vasken Hagopian, K. Gounder, Anna Goussiou, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, H. Weerts, Z. M. Wang, R. Snihur, Michael Begel, K. Genser, Shuichi Kunori, V. Vaniev, B. Pawlik, S. Youssef, H. E. Fisk, Lev Dudko, Gregory R Snow, B. G. Pope, Y. Kulik, L. J. Pan, Haiyan Wang, R. Demina, D. Casey, S.A. Kahn, J. Kotcher, D. Mihalcea, B. Connolly, M. Roco, E. Flattum, S. Chopra, K. W. Merritt, J. Womersley, Richard Breedon, M. Demarteau, G. Gutierrez, J. F. Bartlett, Gilvan Alves, B. May, V. Manankov, N. Graf, K. Streets, Vipin Bhatnagar, Robert Kehoe, V. Zutshi, S. Fuess, M. H.G. Souza, T. Rockwell, Iain Alexander Bertram, V. Simak, D. Karmanov, S. Negroni, Z. Zhou, J. Solomon, R. Partridge, V. S. Narasimham, L. Groer, Thomas G Trippe, E. Popkov, A. N. Galyaev, G. Eppley, E. J. Ramberg, Ariel Schwartzman, E. Smith, K. M. Chan, Dhiman Chakraborty, H. E. Montgomery, Y. Fisyak, Alexander Belyaev, Vladimir Gavrilov, Michael Rijssenbeek, Gordon Watts, Elizaveta Shabalina, D. A. Wijngaarden, J. Rha, V. Sirotenko, H. S. Mao, H. da Motta, J. G.R. Lima, P. Yamin, Marvin Johnson, P. Padley, A. S. Ito, Z. Yu, Patrick Slattery, O. V. Eroshin, Daniel Whiteson, A. V. Kozelov, Phillip Gutierrez, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, Anurag Gupta, Alexey Volkov, Suyong Choi, Michael A. Strauss, Peter W. Draper, Heriberto Castilla-Valdez, V. N. Evdokimov, J. Warchol, J. T. White, J. T. Linnemann, V. Sorín, K. Yip, D. K. Cho, S. P. Denisov, James H Cochran, E. G. Zverev, Jasvinder A. Singh, R. Gilmartin, R. K. Shivpuri, J. Snow, Mitchell Wayne, Ulrich Heintz, F. Stichelbaut, L. Stutte, Jinhong Yu, H. Jöstlein, A.S. Dyshkant, H. L. Melanson, P. Z. Quintas, Chris Hays, M. R. Krishnaswamy, M. Buehler, W. E. Cooper, S. Duensing, Suman Bala Beri, M. Diesburg, V.V. Abramov, Andrew White, N. R. Stanton, V. A. Bezzubov, J. P. Negret, R. P. Smith, Matthew Jones, A. Juste, B. Baldin, L. Lueking, Y. Ducros, A. Para, M. Abolins, J. H. Christenson, H. Schellman, J. M. Kohli, U. Bassler, David H. Adams, P. Grudberg, Sergey Chekulaev, Alice Bean, Michael Shupe, Arnaud Lucotte, J. Estrada, Meenakshi Narain, N. K. Mondal, H. T. Diehl, H. Singh, K. Del Signore, R. Jesik, X. C. Meng, John Hobbs, N. Parua, Randy Ruchti, D. R. Claes, A. Boehnlein, P. van Gemmeren, Alberto Santoro, A. V. Kotwal, Harrison Prosper, F. Canelli, S. Desai, J. Ellison, A. K.A. Maciel, Seong Keun Kim, D. Toback, M. Sosebee, Stefan Grünendahl, J. Thompson, Sergey Kuleshov, P. M. Tuts, M. Merkin, P. Rubinov, J. M. Hauptman, Cecilia Elena Gerber, V. E. Kuznetsov, R. W. Stephens, V. V. Babintsev, J. Bantly, P. I. Goncharov, G. Ginther, S. Doulas, Jianming Qian, S. A. Jerger, C. Miao, B. Olivier, Raymond Brock, Boaz Klima, Andrew Brandt, S. R. Hou, Victor Daniel Elvira, G. Briskin, R. Engelmann, E. A. Kozlovsky, J. A. Wightman, H.E. Miettinen, D. Norman, A. Leflat, Jeffrey F. Krane, S. Willis, N. I. Bojko, M. I. Martin, R. D. Martin, B. Gómez, M. L. Stevenson, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, S. Tentindo-Repond, G. Di Loreto, J. McDonald, Z. H. Zhu, Kaushik De, Philip Baringer, Shashikant Dugad, S. Banerjee, Gregorio Bernardi, D. Denisov, S. M. Tripathi, V. Buescher, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, E. W. Anderson, Q. Z. Li, Stephen Wimpenny, A. R. Clark, Allen Mincer, Sebastian Grinstein, T. Marshall, A. V. Kostritskiy, Darien Wood, Sissel Hansen, Nicholas John Hadley, L. Coney, N. Sen, S. Blessing, S. N. Gurzhiev, Scott Snyder, R. J. Madaras, B. Gibbard, Viatcheslav Stolin, Yu-tin Huang, J. Sculli, Nikos Varelas, C. Lundstedt, D. Hedin, Neeti Parashar, M. Zielinski, V. Oguri, Gustaaf Brooijmans, Elizabeth Gallas, T. McMahon, F. Fleuret, R. Van Kooten, S. Feher, A. Besson, K. A. Johns, G. Graham, A. Zieminski, R. A. Sidwell, J. V.D. Wirjawan, E. Kajfasz, G. Steinbrück, Rajendran Raja, Brad Abbott, M. Fortner, N. W. Reay, J. Perkins, Emanuela Barberis, L. T. Goss, A. Baden, G. C. Blazey, H. Haggerty, R. Yamada, H. D. Wahl, N. Amos, M. Zanabria, Winston Ko, Orin I. Dahl, John Rutherfoord, Mary Beth Adams, James C. Green, K. S. Hahn, D. Cutts, O. Peters, Wagner Carvalho, Greg Landsberg, M. Paterno, K. Soustruznik, F. Borcherding, T. Yasuda, Miguel Mostafa, M. M. Baarmand, Wendy Taylor, A. Patwa, Sarah Catherine Eno, F. Nang, Richard B. Lipton, Roger Moore, P. Gartung, C. Klopfenstein, B. Knuteson, N. Sotnikova, R. J. Genik, D. Fein, Don Lincoln, P. W. Balm, Daniel John Karmgard, C. Hebert, Jing Li, N.V. Mokhov, A. P. Heinson, R. E. Hall, J. L. González Solís, Z. Casilum, S. Krzywdzinski, A. Zylberstejn, F. Lehner, H. Greenlee, A. Bross, G. A. Davis, and Serban Protopopescu

Subjects
Quantum chromodynamics, Absolute magnitude, Physics, Particle physics, Jet (fluid), 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, Nuclear physics, Cross section (physics), Square root, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract

The D0 Collaboration has measured the inclusive jet cross section in barpp collisions at square root of s = 630 GeV. The results for pseudorapidities (eta)

Published
2001

30. Ratios of Multijet Cross Sections inpp¯Collisions at√s=1.8TeV

Author

P. Demine, H. Zheng, P. Hanlet, Robert Hirosky, D. Coppage, P. A. Rapidis, A. Jonckheere, A. P. Vorobiev, R. Demina, G. Gutierrez, Gilvan Alves, Stephan Linn, B. May, T. Rockwell, Iain Alexander Bertram, V. S. Narasimham, E. T. Goss, Thomas G Trippe, N. Oshima, S. Reucroft, Michael Rijssenbeek, Daria Zieminska, R. D. Schamberger, M. H.G. Souza, Anurag Gupta, M. A. Kubantsev, H. E. Montgomery, J. Snow, V. N. Evdokimov, G. Steinbrück, Chris Hays, Elizabeth Gallas, T. McMahon, Ulrich Heintz, M. Abolins, Jasvinder A. Singh, Z. Yu, Y. Fisyak, H. Jöstlein, V. A. Bezzubov, J. P. Negret, Bobby Samir Acharya, R. P. Smith, H. A. Neal, Daniel Whiteson, H. C. Shankar, Rajendran Raja, J. T. Linnemann, V. Sorín, K. Yip, Jinhong Yu, E. Groer, A.S. Dyshkant, M. Diesburg, Marvin Johnson, Michael Shupe, E. Oesch, A. V. Kozelov, D. Buchholz, S. Fuess, Andrew White, Pushpalatha C Bhat, Brad Abbott, H. L. Melanson, P. Z. Quintas, J. Estrada, C. Klopfenstein, M. Bhattacharjee, E. Popkov, K. Del Signore, H. E. Fisk, N. K. Mondal, A. A. Mayorov, R. K. Shivpuri, E. Coney, H. T. Diehl, H. Singh, K. Gounder, P. Grudberg, Anna Goussiou, A. V. Kotwal, Harrison Prosper, A. Boehnlein, K. A. Johns, S. Desai, E. G. Zverev, M. A.C. Cummings, M. Strovink, B. Hoeneisen, Sharon Hagopian, D. A. Stoyanova, A. S. Turcot, J. Ellison, A. K.A. Maciel, Lee Sawyer, S. P. Denisov, N.V. Mokhov, T. Heuring, J. H. Christenson, David H. Adams, D. R. Claes, Gregory R Snow, P. M. Tuts, V. E. Kuznetsov, Z. Zhou, J. Solomon, R. W. Stephens, John Hobbs, Gervasio Gomez, K. M. Mauritz, P. van Gemmeren, A. V. Kostritskiy, M. R. Krishnaswamy, Alice Bean, A. P. Heinson, Neeti Parashar, Shuichi Kunori, P.F. Ermolov, S. Doulas, Sissel Hansen, Vladimir Gavrilov, B. Knuteson, Michael Begel, Elemer Nagy, Haiyan Wang, V. Vaniev, A. Para, M. Zielinski, R. J. Madaras, F. Canelli, E. Lueking, Sergey Chekulaev, Suyong Choi, V. S. Burtovoi, S.A. Kahn, Kaushik De, M. E. Stevenson, Gordon Watts, Meenakshi Narain, V. Sirotenko, O. I. Dabi, N. Sen, E. Stutte, R. Gilmartin, T. Fahland, R. E. Hall, R. Piegaia, J. V.D. Wirjawan, K. Genser, M. Demarteau, N. Sotnikova, Z. Casilum, R. J. Genik, Wendy Taylor, A. Patwa, F. Fleuret, R. Snihur, K. Streets, Vipin Bhatnagar, J. M. Hauptman, R. Partridge, R. Van Kooten, S. Feher, A. Besson, E. Kajfasz, S. M. Tripathi, Cecilia Elena Gerber, G. Di Loreto, D. Hedin, E. J. Ramberg, M. Merkin, D. P. Stoker, Heriberto Castilla-Valdez, D. Fein, V. Simak, O. V. Eroshin, Gregorio Bernardi, D. Denisov, V. V. Babintsev, G. Ginther, Roger Moore, Y. Kulik, P. Padley, Alexey Volkov, G. Graham, A. Zieminski, M. Sosebee, E. Flattum, Phillip Gutierrez, Don Lincoln, P. W. Balm, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, James H Cochran, Mitchell Wayne, H. Schellman, J. M. Kohli, Jianming Qian, J. Rha, J. E. González Solís, H. S. Mao, Stefan Grünendahl, S. Chopra, R. Eipton, Daniel John Karmgard, P. Gartung, J. Thompson, S. R. Hou, G. Briskin, Stephen Wimpenny, V. Oguri, P. Yamin, B. Gómez, C. Hebert, A. R. Clark, Alexander Belyaev, S. N. Gurzhiev, Howard Gordon, R. A. Sidwell, Z. H. Zhu, T. Marshall, Shashikant Dugad, J. Bantly, K. C. Frame, Ariel Schwartzman, E. Smith, Jeffrey F. Krane, Gustaaf Brooijmans, Viatcheslav Stolin, V. Buescher, K. M. Chan, Dhiman Chakraborty, J. Warchol, M. Chung, Patrick Slattery, Jing Li, Raymond Brock, K. W. Merritt, P. I. Goncharov, Darien Wood, C. Lundstedt, Boaz Klima, E. W. Anderson, U. Bassler, J. F. Bartlett, Andrew Brandt, R. Engelmann, V. Manankov, B. Pawlik, Q. Z. Li, S. Krzywdzinski, C. S. Mishra, Peter W. Draper, G. Eppley, J. Womersley, Allen Mincer, D. Casey, Nicholas John Hadley, J. Kotcher, E. A. Kozlovsky, H.E. Miettinen, D. Norman, N. Amos, D. Karmanov, S. Blessing, S. Negroni, Sebastian Grinstein, A. Zylberstejn, F. Lehner, H. Greenlee, Scott Snyder, C. Miao, B. Olivier, Alberto Santoro, Seong Keun Kim, S. Willis, D. Toback, H. da Motta, P. Rubinov, N. Graf, J. G.R. Lima, A. N. Galyaev, Vasken Hagopian, A. Bross, D. K. Cho, H. Weerts, Z. M. Wang, Lev Dudko, W. E. Cooper, S. Duensing, H. D. Wahl, M. Zanabria, M. Fortner, N. W. Reay, G. A. Davis, Serban Protopopescu, Winston Ko, A. S. Ito, E. J. Pan, J. Perkins, O. Peters, B. Gibbard, V.V. Abramov, T. Yasuda, Matthew Jones, Emanuela Barberis, Arnaud Lucotte, F. Stichelbaut, Yu-tin Huang, J. Sculli, N. Parua, Randy Ruchti, Nikos Varelas, H. Haggerty, R. L. McCarthy, M. Roco, A. Baden, G. C. Blazey, R. Yamada, John Rutherfoord, B. Baldin, Mary Beth Adams, Y. Ducros, James C. Green, X. C. Meng, F. Borcherding, Sergey Kuleshov, Victor Daniel Elvira, J. A. Wightman, M. Buehler, N. I. Bojko, Miguel Mostafa, R. D. Martin, M. M. Baarmand, Sarah Catherine Eno, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, N. R. Stanton, H. Piekarz, F. Nang, S. Youssef, R. Jesik, K. S. Hahn, D. Cutts, Robert Kehoe, V. Zutshi, Wagner Carvalho, Greg Landsberg, M. Paterno, K. Soustruznik, S. A. Jerger, A. Leflat, D. Mihalcea, B. Connolly, Richard Breedon, M. I. Martin, S. Tentindo-Repond, J. McDonald, Philip Baringer, S. Banerjee, B. G. Pope, Elizaveta Shabalina, J. T. White, D. A. Wijngaarden, Michael A. Strauss, Suman Bala Beri, A. Juste, D. Edmunds, Andre Sznajder, Yuri Gershtein, M. D. Peters, L. Babukhadia, and D. Shpakov

Subjects
Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Tevatron, General Physics and Astronomy, Jet (particle physics), 01 natural sciences, law.invention, Nuclear physics, Renormalization, Transverse plane, law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Bar (unit)
Abstract

We report on a study of the ratio of inclusive three-jet to inclusive two-jet production cross sections as a function of total transverse energy in p (p) over bar collisions at it center-of-mass energy roots = 1.8 TeV, using data collected with the DO detector during the 1992-1993 run of the Fermilab Tevatron Collider. The measurements are used to deduce preferred renormalization scales in perturbative O(alpha (3)(s)) QCD calculations in modeling soft-jet emission.

Published
2001

31. Inclusive Jet Production inpp¯Collisions

Author

M. Merkin, Raymond Brock, Boaz Klima, R. Beuselinck, D. Norman, S. Willis, A. N. Galyaev, D. K. Cho, R. Illingworth, W. E. Cooper, S. Duensing, Pushpalatha C Bhat, G. Eppley, Robert Hirosky, B. May, Anupam Gupta, D. Buchholz, C. Klopfenstein, Vipin Bhatnagar, D. Bauer, Stephen Wimpenny, K. Gounder, B. G. Pope, M. A.C. Cummings, B. Hoeneisen, N. Parua, V.V. Abramov, H. da Motta, J. G.R. Lima, R. Demina, G. Gutierrez, R. Snihur, D. Mihalcea, B. Connolly, Richard Breedon, F. Borcherding, E. Coney, Gilvan Alves, E. Duflot, A. S. Ito, V. Simak, Bobby Samir Acharya, H. A. Neal, M. Jaffré, Ulrich Heintz, V. S. Narasimham, T. Marshall, Kenneth Johns, Anna Goussiou, V. Oguri, F. Stichelbaut, Elizaveta Shabalina, R. Partridge, N.V. Mokhov, Thomas G Trippe, J. T. Linnemann, V. Sorín, H. E. Melanson, Jasvinder A. Singh, D. A. Wijngaarden, H. Jöstlein, P. Padley, Alexey Volkov, Gustaaf Brooijmans, T. C. Bacon, Haiyan Wang, T. Nunnemann, B. Baldin, K. Yip, A. P. Heinson, S.A. Kahn, Arnaud Lucotte, M. Diesburg, Andrew White, J. Warchol, R. J. Madaras, M. Demarteau, Y. Ducros, Darien Wood, Heriberto Castilla-Valdez, D. P. Stoker, K. W. Merritt, E. Sawyer, James H Cochran, Jinhong Yu, S. N. Gurzhiev, E. Groer, R. L. McCarthy, R. E. Hall, B. Knuteson, J. T. White, Nicholas John Hadley, Shuichi Kunori, A.S. Dyshkant, F. Fleuret, Z. Casilum, Michael A. Strauss, P. A. Rapidis, Gregory R Snow, Randy Ruchti, L. Lueking, Mitchell Wayne, E. Stutte, H. Schellman, J. M. Kohli, Emanuela Barberis, V. Vaniev, A. P. Vorobiev, M. Buehler, C. S. Mishra, S. Blessing, X. C. Meng, E. Popkov, Scott Snyder, A. Jonckheere, K. Del Signore, A. A. Mayorov, Matthew Jones, S. Krzywdzinski, R. Van Kooten, M. Roco, J. F. Bartlett, Elizabeth Gallas, T. McMahon, N. Sotnikova, K. M. Mauritz, P. Demine, V. Manankov, N. R. Stanton, L. T. Goss, T. Heuring, Stefan Grünendahl, Sergey Kuleshov, S. Feher, A. Besson, R. J. Genik, J. Thompson, R. K. Shivpuri, J. Snow, M. Strovink, N. Oshima, H. Zheng, Charles Leggett, P. Hanlet, J. Rha, J. E. González Solís, S. R. Hou, John Hobbs, Daria Zieminska, Vasken Hagopian, D. Coppage, P. M. Tuts, Victor Daniel Elvira, V. E. Kuznetsov, A. Zylberstejn, K. M. Chan, Dhiman Chakraborty, F. Lehner, H. Greenlee, G. Graham, D. R. Claes, P. van Gemmeren, P.F. Ermolov, H. Weerts, Z. M. Wang, Miguel Mostafa, R. W. Stephens, B. Gómez, A. Zieminski, R. Jesik, S. Doulas, Lev Dudko, J. Womersley, M. A. Kubantsev, J. A. Wightman, Shashikant Dugad, D. Hedin, Kaushik De, Sergey Chekulaev, Ricardo Piegaia, H. Haggerty, M. M. Baarmand, Elemer Nagy, Sarah Catherine Eno, M. Bhattacharjee, H. D. Wahl, M. Zanabria, G. A. Davis, Serban Protopopescu, H. S. Mao, N. I. Bojko, S. Reucroft, T. Fahland, R. D. Martin, E. J. Ramberg, Winston Ko, M. Abolins, D. Karmanov, R. A. Sidwell, P. Yamin, O. Peters, Sharon Hagopian, Alexander Belyaev, D. Fein, S. Negroni, V. S. Burtovoi, Viatcheslav Stolin, Y. Kulik, S. M. Tripathi, Don Lincoln, A. Leflat, A. V. Kostritskiy, E. Flattum, J. S. Hoftun, K. Davis, J. N. Butler, P. W. Balm, S. Fuess, Daniel John Karmgard, P. D. Grannis, M. I. Martin, K. Papageorgiou, T. Rockwell, Iain Alexander Bertram, N. K. Mondal, H. Piekarz, Sissel Hansen, Suman Bala Beri, S. Chopra, M. Fortner, C. Hebert, T. Yasuda, Wendy Taylor, A. Bross, N. W. Reay, A. Abdesselam, H. T. Diehl, Ariel Schwartzman, G. Steinbrück, Michael Rijssenbeek, A. Patwa, J. Perkins, Allan G Clark, Roger Moore, N. Amos, Peter W. Draper, Patrick Slattery, H. Singh, S. Youssef, E. Smith, S. Tentindo-Repond, Melissa Ridel, A. Juste, N. Sen, Rajendran Raja, M. Sosebee, J. McDonald, D. A. Stoyanova, A. S. Turcot, A. Boehnlein, M. Chung, V. Zutshi, R. D. Schamberger, Y. Fisyak, Gervasio Gomez, Vladimir Gavrilov, F. Nang, Richard B. Lipton, Philip Baringer, Yu-tin Huang, Marvin Johnson, Michael Begel, Howard Gordon, K. C. Frame, Brad Abbott, Pierre Petroff, V. N. Evdokimov, D. Shpakov, A. V. Kozelov, J. Ellison, A. K.A. Maciel, C. Lundstedt, Gordon Watts, Nikos Varelas, K. Genser, V. Sirotenko, K. S. Hahn, D. Edmunds, Sergey Denisov, V. Buescher, E. W. Anderson, D. Cutts, Andre Sznajder, M. R. Krishnaswamy, Yuri Gershtein, O. V. Eroshin, Q. Z. Li, S. A. Jerger, M. D. Peters, P. I. Goncharov, A. Para, B. Pawlik, J. V.D. Wirjawan, C. Miao, B. Olivier, L. Oesch, Sebastian Grinstein, L. Babukhadia, Wagner Carvalho, M. H.G. Souza, Phillip Gutierrez, Chris Hays, V. A. Bezzubov, H. E. Montgomery, J. P. Negret, Greg Landsberg, Sw. Banerjee, E. Kajfasz, Suyong Choi, Z. Yu, Daniel Whiteson, D. Casey, R. P. Smith, J. Kotcher, Michael Shupe, N. Graf, M. Paterno, K. Soustruznik, P. Z. Quintas, J. Estrada, J. H. Christenson, David H. Adams, Alice Bean, F. Canelli, A. Baden, A. V. Kotwal, Andrew Brandt, R. Engelmann, G. C. Blazey, Harrison Prosper, S. Desai, E. A. Kozlovsky, H.E. Miettinen, R. Yamada, G. Di Loreto, E. G. Zverev, John Rutherfoord, Gregorio Bernardi, D. Denisov, C. Luo, Mary Beth Adams, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, James C. Green, Meenakshi Narain, S. E. Linn, Neeti Parashar, M. Zielinski, H. E. Fisk, L. J. Pan, Z. Zhou, J. Solomon, R. Gilmartin, M. Gao, U. Bassler, Alberto Santoro, Seong Keun Kim, D. Toback, P. Rubinov, J. M. Hauptman, Cecilia Elena Gerber, V. V. Babintsev, G. Ginther, Jianming Qian, G. Briskin, Jeffrey F. Krane, and Li Jingyuan

Subjects
Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Tevatron, General Physics and Astronomy, Parton, Jet (particle physics), 7. Clean energy, 01 natural sciences, Nuclear physics, Cross section (physics), Distribution function, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics
Abstract

We report a new measurement of the pseudorapidity (eta) and transverse-energy (Et) dependence of the inclusive jet production cross section in pbar b collisions at sqrt(s) = 1.8 TeV using 95 pb**-1 of data collected with the DZero detector at the Fermilab Tevatron. The differential cross section d^2sigma/dEt deta is presented up to |eta| = 3, significantly extending previous measurements. The results are in good overall agreement with next-to-leading order predictions from QCD and indicate a preference for certain parton distribution functions.

Published
2001

32. Cross Section forb-Jet Production inp¯pCollisions at√s=1.8TeV

Author

S. Grinstein, M. Abolins, V. Sirotenko, Ulrich Heintz, A. Juste, C. S. Mishra, N. K. Mondal, H. T. Diehl, Elizaveta Shabalina, H. Singh, G. Gutierrez, Y. Ducros, P. Gutierrez, K. Del Signore, M. Merkin, M. Sosebee, A. V. Kostritskiy, Stephen Wimpenny, M. Demarteau, V. Gavrilov, B. May, M. H.G. Souza, T. Heuring, A. V. Kotwal, J. Ellison, A. K.A. Maciel, S. N. Gurzhiev, P. M. Tuts, E. Ramberg, R. Snihur, H. L. Melanson, Y. Kulik, Anurag Gupta, B. Baldin, V. A. Bezzubov, H. Jöstlein, D. Lincoln, Jasvinder A. Singh, R. P. Smith, E. Nagy, S. A. Jerger, D. A. Stoyanova, A. S. Turcot, A. Bross, J. Bantly, Raymond Brock, Boaz Klima, D. Fein, L. Coney, Darien Wood, A. Leflat, H. E. Montgomery, Michael Shupe, Z. Yu, N. Sen, R. K. Shivpuri, Gervasio Gomez, V. E. Kuznetsov, R. W. Stephens, S. Feher, Daniel Whiteson, J. Estrada, C. Lundstedt, P. Rubinov, Nicholas John Hadley, H. E. Fisk, M. Jones, R. L. McCarthy, Andrew White, N. Amos, Harrison Prosper, Michael Begel, S. Tentindo-Repond, J. McDonald, S. P. Denisov, J. A. Wightman, S. Desai, S. Blessing, Andrew Brandt, R. Engelmann, A. A. Mayorov, P. W. Balm, Robert Hirosky, N. I. Bojko, D. Stoker, Daniel John Karmgard, D. Mihalcea, Scott Snyder, G. Watts, Suyong Choi, S. Willis, P. Padley, M. Strauss, Alexey Volkov, Philip Baringer, F. Lehner, P. Grudberg, D. Buchholz, R. D. Martin, P. C. Bhat, James H Cochran, S. Banerjee, Mitchell Wayne, H. Schellman, J. M. Kohli, M. R. Krishnaswamy, E. A. Kozlovsky, H.E. Miettinen, J. T. White, R. Demina, C. Hebert, T. Rockwell, Iain Alexander Bertram, Emanuela Barberis, Gilvan Alves, M. Buehler, F. Fleuret, G. Steinbrück, V.V. Abramov, M. L. Stevenson, J. Thompson, Michael Rijssenbeek, S. R. Hou, Anna Goussiou, K. M. Chan, Dhiman Chakraborty, N. Mokhov, M. Strovink, H. S. Mao, Heriberto Castilla-Valdez, X. C. Meng, E. Popkov, G. Di Loreto, Ron Lipton, L. Lueking, A. N. Galyaev, J. Yu, N. R. Stanton, Z. H. Zhu, V. S. Narasimham, Thomas G Trippe, Shashikant Dugad, V. Stolin, J. Womersley, B. Connolly, Richard Breedon, Alexander Belyaev, John Hobbs, J. S. Hoftun, K. Davis, J. N. Butler, V. N. Evdokimov, J. Warchol, B. Gómez, Gregory R Snow, P. Z. Quintas, H. D. Wahl, B. Hoeneisen, P. D. Grannis, H. Piekarz, Gregorio Bernardi, M. Bhattacharjee, Sergey Chekulaev, G. Brooijmans, K. Soustruznik, Srinivasan Rajagopalan, H. Greenlee, S. Doulas, V. Buescher, D. K. Cho, E. G. Zverev, R. Van Kooten, Patrick Slattery, Thomas Ferbel, K. M. Mauritz, A. Besson, E. W. Anderson, P.F. Ermolov, Winston Ko, P. I. Goncharov, Jing Li, Kaushik De, P. van Gemmeren, G. Eppley, T. Yasuda, S. Duensing, Daniel R Claes, V. Sorín, E. Kajfasz, Sharon Hagopian, D. Norman, Arnaud Lucotte, S. Youssef, C. Miao, B. Olivier, R. E. Hall, S. M. Tripathi, H. da Motta, J. G.R. Lima, S. Fuess, G. Graham, V. S. Burtovoi, W. E. Cooper, S. Kuleshov, Allen Mincer, M. Zanabria, R. J. Madaras, A. Zieminski, T. Marshall, V. D. Elvira, K. Genser, Meenakshi Narain, Neeti Parashar, L. Groer, D. Hedin, Robert Kehoe, V. Zutshi, L. T. Goss, O. Peters, A. Para, R. Piegaia, E. Gallas, E. Smith, S. Negroni, D. Karmanov, A. Zylberstejn, H. Haggerty, N. Parua, Randy Ruchti, R. Yamada, M. Zielinski, Howard Gordon, M. Mostafa, L. Sawyer, J. F. Bartlett, J. H. Christenson, S. Chopra, T. McMahon, K. C. Frame, R. A. Sidwell, C. Hays, P. A. Rapidis, B. Gibbard, Yu-tin Huang, J. Sculli, J. Snow, C. Klopfenstein, Vasken Hagopian, H. Weerts, Z. M. Wang, F. Stichelbaut, G. A. Davis, K. W. Merritt, Nikos Varelas, Serban Protopopescu, Lev Dudko, D. A. Wijngaarden, S. K. Kim, A. Schwartzman, A. S. Ito, M. Roco, J. V. D. Wirjawan, V. Manankov, V. Simak, A. P. Heinson, M. Chung, O. V. Eroshin, B. Knuteson, J. L. González Solís, K. A. Johns, Brad Abbott, Z. Casilum, N. Sotnikova, R. J. Genik, Wendy Taylor, A. Patwa, Allan G Clark, Roger Moore, P. Gartung, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. T. Linnemann, K. Yip, A.S. Dyshkant, T. Fahland, M. Fortner, N. W. Reay, J. Perkins, S. Hansen, M. Peters, A. Boehnlein, L. Stutte, V. Oguri, Y. Fisyak, M. M. Baarmand, Sarah Catherine Eno, H. Evans, Marvin Johnson, F. Nang, A. Baden, A. V. Kozelov, G. C. Blazey, Orin I. Dahl, John Rutherfoord, Mary Beth Adams, James C. Green, K. S. Hahn, D. Cutts, Wagner Carvalho, Greg Landsberg, M. Paterno, Suman Bala Beri, A. Jonckheere, D. Edmunds, Andre Sznajder, Yuri Gershtein, L. Oesch, L. Babukhadia, L. J. Pan, Z. Zhou, J. Solomon, Qiming Li, E. Flattum, R. Gilmartin, S. Krzywdzinski, J. M. Hauptman, Cecilia Elena Gerber, V. V. Babintsev, G. Ginther, Jianming Qian, G. Briskin, Jeffrey F. Krane, U. Bassler, Alberto Santoro, D. Toback, M. Diesburg, S. Grünendahl, R. Jesik, D. Zieminska, Shuichi Kunori, V. Vaniev, P. Yamin, D. Shpakov, P. Demine, H. Zheng, P. Hanlet, D. Coppage, F. Borcherding, D. Denisov, S. Reucroft, Peter W. Draper, B. Pawlik, A. P. Vorobiev, R. Raja, Stephan Linn, N. Oshima, R. D. Schamberger, M. A. Kubantsev, K. Gounder, M. A.C. Cummings, Haiyan Wang, S.A. Kahn, D. Casey, J. Kotcher, N. Graf, J. P. Negret, M. I. Martin, David H. Adams, Alice Bean, F. Canelli, K. Streets, Vipin Bhatnagar, R. Partridge, J. Rha, and B. G. Pope

Subjects
Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Tevatron, General Physics and Astronomy, Jet (particle physics), 01 natural sciences, Bottom quark, law.invention, Nuclear physics, Cross section (physics), law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Rapidity, Fermilab, 010306 general physics, Collider
Abstract

Bottom quark production in pbar-p collisions at sqrt(s)=1.8 TeV is studied with 5 inverse picobarns of data collected in 1995 by the DO detector at the Fermilab Tevatron Collider. The differential production cross section for b jets in the central rapidity region (|y(b)| < 1) as a function of jet transverse energy is extracted from a muon-tagged jet sample. Within experimental and theoretical uncertainties, DO results are found to be higher than, but compatible with, next-to-leading-order QCD predictions.

Published
2000

33. The b production cross section and angular correlations in p collisions at =

Author

B Abbott, M Abolins, V Abramov, B.S Acharya, D.L Adams, M Adams, V Akimov, G.A Alves, N Amos, E.W Anderson, M.M Baarmand, V.V Babintsev, L Babukhadia, A Baden, B Baldin, S Banerjee, J Bantly, E Barberis, P Baringer, J.F Bartlett, U Bassler, A Bean, A Belyaev, S.B Beri, G Bernardi, I Bertram, V.A Bezzubov, P.C Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, S Blessing, A Boehnlein, N.I Bojko, F Borcherding, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, V.S Burtovoi, J.M Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, K.M Chan, S.V Chekulaev, D.K Cho, S Choi, S Chopra, B.C Choudhary, J.H Christenson, M Chung, D Claes, A.R Clark, J Cochran, L Coney, B Connolly, W.E Cooper, D Coppage, D Cullen-Vidal, M.A.C Cummings, D Cutts, O.I Dahl, K Davis, K De, K Del Signore, M Demarteau, D Denisov, S.P Denisov, H.T Diehl, M Diesburg, G Di Loreto, S Doulas, P Draper, Y Ducros, L.V Dudko, S.R Dugad, A Dyshkant, D Edmunds, J Ellison, V.D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O.V Eroshin, J Estrada, H Evans, V.N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, H.E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, K.C Frame, S Fuess, E Gallas, A.N Galyaev, P Gartung, V Gavrilov, R.J Genik II, K Genser, C.E Gerber, Y Gershtein, B Gibbard, R Gilmartin, G Ginther, B Gómez, G Gómez, P.I Goncharov, J.L González Solı́s, H Gordon, L.T Goss, K Gounder, A Goussiou, N Graf, P.D Grannis, J.A Green, H Greenlee, S Grinstein, P Grudberg, S Grünendahl, G Guglielmo, A Gupta, S.N Gurzhiev, G Gutierrez, P Gutierrez, N.J Hadley, H Haggerty, S Hagopian, V Hagopian, K.S Hahn, R.E Hall, P Hanlet, S Hansen, J.M Hauptman, C Hays, C Hebert, D Hedin, A.P Heinson, U Heintz, T Heuring, R Hirosky, J.D Hobbs, B Hoeneisen, J.S Hoftun, A.S Ito, S.A Jerger, R Jesik, T Joffe-Minor, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, A Juste, S Kahn, E Kajfasz, D Karmanov, D Karmgard, R Kehoe, S.K Kim, B Klima, C Klopfenstein, B Knuteson, W Ko, J.M Kohli, A.V Kostritskiy, J Kotcher, A.V Kotwal, A.V Kozelov, E.A Kozlovsky, J Krane, M.R Krishnaswamy, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, G Landsberg, A Leflat, F Lehner, J Li, Q.Z Li, J.G.R Lima, D Lincoln, S.L Linn, J Linnemann, R Lipton, J.G Lu, A Lucotte, L Lueking, C Lundstedt, A.K.A Maciel, R.J Madaras, V Manankov, S Mani, H.S Mao, T Marshall, M.I Martin, R.D Martin, K.M Mauritz, B May, A.A Mayorov, R McCarthy, J McDonald, T McMahon, H.L Melanson, X.C Meng, M Merkin, K.W Merritt, C Miao, H Miettinen, D Mihalcea, A Mincer, C.S Mishra, N Mokhov, N.K Mondal, H.E Montgomery, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V.S Narasimham, H.A Neal, J.P Negret, S Negroni, D Norman, L Oesch, V Oguri, B Olivier, N Oshima, P Padley, L.J Pan, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, M Peters, R Piegaia, H Piekarz, B.G Pope, E Popkov, H.B Prosper, S Protopopescu, J Qian, P.Z Quintas, R Raja, S Rajagopalan, N.W Reay, S Reucroft, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, A Santoro, L Sawyer, R.D Schamberger, H Schellman, A Schwartzman, J Sculli, N Sen, E Shabalina, H.C Shankar, R.K Shivpuri, D Shpakov, M Shupe, R.A Sidwell, V Simak, H Singh, J.B Singh, V Sirotenko, P Slattery, E Smith, R.P Smith, R Snihur, G.R Snow, J Snow, S Snyder, J Solomon, X.F Song, V Sorı́n, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N.R Stanton, G Steinbrück, R.W Stephens, M.L Stevenson, F Stichelbaut, D Stoker, V Stolin, D.A Stoyanova, M Strauss, K Streets, M Strovink, L Stutte, A Sznajder, W Taylor, S Tentindo-Repond, T.L.T Thomas, J Thompson, D Toback, T.G Trippe, A.S Turcot, P.M Tuts, P van Gemmeren, V Vaniev, R Van Kooten, N Varelas, A.A Volkov, A.P Vorobiev, H.D Wahl, H Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J.T White, D Whiteson, J.A Wightman, S Willis, S.J Wimpenny, J.V.D Wirjawan, J Womersley, D.R Wood, R Yamada, P Yamin, T Yasuda, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, H Zheng, Z Zhou, Z.H Zhu, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E.G Zverev, and A Zylberstejn

Subjects
Quantum chromodynamics, Quark, Physics, Nuclear and High Energy Physics, Particle physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Tevatron, 01 natural sciences, 7. Clean energy, Bottom quark, law.invention, Cross section (physics), law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics, Collider
Abstract

We present measurements of the b-bbar production cross section and angular correlations using the D0 detector at the Fermilab Tevatron p-pbar Collider operating at sqrt(s) = 1.8 TeV. The b quark production cross section for |y(b)| 6 GeV/c is extracted from single muon and dimuon data samples. The results agree in shape with the next-to-leading order QCD calculation of heavy flavor production but are greater than the central values of these predictions. The angular correlations between b and bbar quarks, measured from the azimuthal opening angle between their decay muons, also agree in shape with the next-to-leading order QCD prediction.

Published
2000

34. Spin Correlation intt¯Production frompp¯Collisions at√s=1.8TeV

Author

A. N. Galyaev, D. K. Cho, D. Fein, B. May, Don Lincoln, W. E. Cooper, Daniel R Claes, R. A. Sidwell, Daniel John Karmgard, C. Hebert, Robert Hirosky, B. Gobbi, Anurag Gupta, N. Amos, M. Abolins, Jing Li, D. Mihalcea, Jasvinder A. Singh, B. Connolly, W. Y. Chen, Richard Breedon, N.V. Mokhov, G. Gutierrez, Gilvan Alves, A. P. Heinson, M. Sosebee, S. A. Jerger, A. Leflat, M. Merkin, R. E. Hall, N. K. Mondal, J. L. González Solís, T. Rockwell, Iain Alexander Bertram, Z. Casilum, Emanuela Barberis, H. T. Diehl, H. Singh, R. L. McCarthy, V. S. Narasimham, Thomas G Trippe, J. Bantly, W. G. Cobau, M. I. Martin, N. W. Reay, Michael Rijssenbeek, A. Boehnlein, Raymond Brock, Boaz Klima, L. T. Goss, J. Ellison, Neeti Parashar, A. K.A. Maciel, M. Chung, S. Fuess, S. Tentindo-Repond, J. McDonald, V. N. Evdokimov, D. Norman, S. Willis, M. Zielinski, S. Krzywdzinski, Ron Lipton, M. Roco, J. Womersley, Andrew Brandt, D. Karmanov, S. Negroni, Brajesh C Choudhary, Andrew White, J. Snow, Vladimir Gavrilov, A. Zylberstejn, Bobby Samir Acharya, H. A. Neal, R. Engelmann, H. C. Shankar, J. T. Linnemann, V. Sorín, K. Yip, J. A. Wightman, N. I. Bojko, L. Stutte, Jinhong Yu, A.S. Dyshkant, Gordon Watts, Philip Baringer, F. Lehner, H. Greenlee, G. Eppley, Suyong Choi, Chris Hays, E. A. Kozlovsky, H.E. Miettinen, A. Bross, R. D. Martin, H. da Motta, J. G.R. Lima, H. Haggerty, V. A. Bezzubov, V. Sirotenko, O. V. Eroshin, J. P. Negret, T. Heuring, P. Grudberg, S. Banerjee, Phillip Gutierrez, M. L. Stevenson, Serban Protopopescu, R. P. Smith, T. McMahon, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, M. Bhattacharjee, Ulrich Heintz, H. Jöstlein, E. Popkov, John Hobbs, A. S. Ito, B. Baldin, C. S. Mishra, Michael Shupe, G. Guglielmo, Y. Ducros, K. Del Signore, J. Estrada, D. Edmunds, G. Di Loreto, Gregorio Bernardi, D. Denisov, Sharon Hagopian, M. Diesburg, J. Tarazi, E. G. Zverev, Sergey Kuleshov, Vasken Hagopian, Andre Sznajder, Yuri Gershtein, Victor Daniel Elvira, T. Fahland, V. Buescher, F. Stichelbaut, U. Bassler, R. Gilmartin, M. Fortner, Srinivasan Rajagopalan, Elemer Nagy, M. D. Peters, Hal Evans, H. Weerts, A. V. Kotwal, Lev Dudko, S. Youssef, E. W. Anderson, Thomas Ferbel, Harrison Prosper, P. M. Tuts, Robert Kehoe, V. Zutshi, T. McKibben, E. Flattum, J. Perkins, J. G. Lu, Q. Z. Li, L. Oesch, R. W. Stephens, L. Babukhadia, P. I. Goncharov, C. Miao, Alberto Santoro, Meenakshi Narain, Michael A. Strauss, V.V. Abramov, Alexander Belyaev, Ariel Schwartzman, E. Smith, Matthew Jones, S. N. Gurzhiev, Patrick Slattery, Seong Keun Kim, Allen Mincer, P. Yamin, Sebastian Grinstein, D. Toback, B. Olivier, Heriberto Castilla-Valdez, R. Piegaia, Arnaud Lucotte, R. J. Madaras, D. A. Stoyanova, R. Snihur, Gervasio Gomez, A. V. Kostritskiy, T. Joffe-Minor, Viatcheslav Stolin, N. Parua, Randy Ruchti, S. Mani, Sissel Hansen, Alexander Vorobiev, Y. Kulik, H. E. Fisk, F. Fleuret, R. Jesik, L. Coney, L. J. Pan, Suman Bala Beri, N. Sen, C. Lundstedt, N. R. Stanton, D. Cullen-Vidal, K. Genser, Z. Zhou, J. Solomon, D. Hedin, A. Juste, P. Padley, Alexey Volkov, S. Feher, James H Cochran, Mitchell Wayne, H. Schellman, J. M. Kohli, Peter W. Draper, Stefan Grünendahl, J. Thompson, B. Gómez, J. M. Hauptman, Z. H. Zhu, Shashikant Dugad, Cecilia Elena Gerber, V. V. Babintsev, A. S. Turcot, G. Ginther, K. S. Hahn, Jianming Qian, G. Briskin, Jeffrey F. Krane, D. Cutts, A. Jonckheere, Stephan Linn, Wagner Carvalho, A. Zieminski, N. Oshima, Daria Zieminska, R. D. Schamberger, K. M. Chan, Dhiman Chakraborty, M. A. Kubantsev, Pushpalatha C Bhat, Greg Landsberg, K. Gounder, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, S. Y. Jun, B. G. Pope, T. L.T. Thomas, Haiyan Wang, S.A. Kahn, M. Demarteau, G. Steinbrück, M. Paterno, Rajendran Raja, Brad Abbott, A. Baden, G. C. Blazey, D. Buchholz, R. Yamada, Elizaveta Shabalina, Orin I. Dahl, John Rutherfoord, J. T. White, Mary Beth Adams, S. Chopra, Anna Goussiou, James C. Green, F. Borcherding, Gregory R Snow, M. H.G. Souza, Miguel Mostafa, M. M. Baarmand, Sarah Catherine Eno, H. E. Montgomery, Z. Yu, Daniel Whiteson, K. M. Mauritz, F. Nang, P.F. Ermolov, V. S. Burtovoi, Shuichi Kunori, V. Vaniev, K. Streets, Vipin Bhatnagar, D. Shpakov, R. Partridge, H. Zheng, P. Hanlet, D. Coppage, S. Reucroft, H. S. Mao, H. L. Melanson, P. Z. Quintas, D. P. Stoker, A. A. Mayorov, J. H. Christenson, M. Strovink, David H. Adams, Alice Bean, Y. Fisyak, Marvin Johnson, A. V. Kozelov, B. Pawlik, D. Casey, J. Kotcher, N. Graf, H. D. Wahl, M. Zanabria, Winston Ko, T. Yasuda, C. Klopfenstein, B. Knuteson, X. F. Song, N. Sotnikova, J. V.D. Wirjawan, R. J. Genik, Wendy Taylor, A. Patwa, Allan G Clark, P. Gartung, Stephen Wimpenny, T. Marshall, Darien Wood, E. Kajfasz, Nicholas John Hadley, S. Blessing, Scott Snyder, R. Markeloff, R. K. Shivpuri, P. van Gemmeren, Kaushik De, V. Oguri, Gustaaf Brooijmans, S. P. Denisov, J. Warchol, M. R. Krishnaswamy, B. Gibbard, A. Para, Elizabeth Gallas, J. Sculli, Sergey Chekulaev, Nikos Varelas, P. Rubinov, K. A. Johns, K. W. Merritt, J. F. Bartlett, V. Manankov, L. Lueking, Howard Gordon, V. Akimov, and K. C. Frame

Subjects
Physics, Top quark, Particle physics, Antiparticle, Luminosity (scattering theory), Correlation coefficient, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, General Physics and Astronomy, 01 natural sciences, Standard Model, Nuclear physics, Pair production, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Spin-½, Boson
Abstract

The D0 collaboration has performed a study of spin correlation in tt-bar production for the process tt-bar to bb-bar W^+W^-, where the W bosons decay to e-nu or mu-nu. A sample of six events was collected during an exposure of the D0 detector to an integrated luminosity of approximately 125 pb^-1 of sqrt{s}=1.8 TeV pp-bar collisions. The standard model (SM) predicts that the short lifetime of the top quark ensures the transmission of any spin information at production to the tt-bar decay products. The degree of spin correlation is characterized by a correlation coefficient k. We find that k>-0.25 at the 68% confidence level, in agreement with the SM prediction of k=0.88.

Published
2000

35. Measurement of theW→τνProduction Cross Section inpp¯Collisions ats=1.8TeV

Author

A. Baden, M. Fortner, M. Kubantsev, J. Perkins, M. Demarteau, T. Fahland, S. P. Denisov, G. C. Blazey, T. Heuring, M. R. Krishnaswamy, F. Hsieh, D. P. Stoker, Y. Ducros, S. Grinstein, M. Merkin, Orin I. Dahl, John Rutherfoord, C. S. Mishra, D. Norman, G. Steinbrück, A. Schwartzman, Steve Reucroft, Sergey Chekulaev, G. Brooijmans, T. McMahon, Sergey Kuleshov, Victor Daniel Elvira, Mary Beth Adams, P. Rubinov, N. R. Stanton, Ulrich Heintz, D. Casey, R. Yamada, L. Sawyer, F. Stichelbaut, K. W. Merritt, Michael A. Strauss, S. Rajagopalan, P. C. Bhat, V.V. Abramov, E. Popkov, B. Olivier, V. Manankov, J. A. Wightman, N. I. Bojko, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, R. D. Martin, H. L. Melanson, S. Kahn, L. Lueking, J. Kotcher, James C. Green, R. E. Hall, K. S. Hahn, D. Cutts, Wagner Carvalho, A. Bross, Raymond Brock, Boaz Klima, Y. Kulik, C. Klopfenstein, D. Owen, M. Roco, Greg Landsberg, J. Tarazi, Brad Abbott, B. May, R. A. Sidwell, N. Parashar, G. Watts, J. T. Linnemann, M. Diesburg, K. Yip, S. Grünendahl, Y. Fisyak, S. K. Kim, K. Genser, K. Del Signore, M. L. Stevenson, T. Rockwell, Iain Alexander Bertram, M. Paterno, B. Baldin, Matthew Jones, B. Gobbi, M. I. Martin, D. Buchholz, A.S. Dyshkant, Michael Rijssenbeek, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, Andrew White, S. Willis, E. G. Zverev, H. Piekarz, S.H. Ahn, M. Mostafa, M. Strovink, M. Zielinski, Anurag Gupta, N. Parua, A. Boehnlein, P. I. Goncharov, Shuichi Kunori, V. Vaniev, Y. Pischalnikov, Jasvinder A. Singh, P. Hanlet, Suman Bala Beri, D. Koltick, M. M. Baarmand, Sarah Catherine Eno, D. Shpakov, P. Grudberg, A. N. Galyaev, S. Chopra, Suyong Choi, J. Snow, V. Akimov, C. Miao, H. Zheng, D. Coppage, F. Borcherding, D. Denisov, R. Snihur, S. Negroni, F. Nang, D. K. Cho, K. C. Frame, Alexander Belyaev, Arnaud Lucotte, Anna Goussiou, David H. Adams, Haifeng Li, P. M. Tuts, John Hobbs, N. W. Reay, F. Fleuret, Heriberto Castilla-Valdez, R. W. Stephens, S. Feher, Daniel R Claes, B. Connolly, Patrick Slattery, Richard Breedon, K. A. Johns, K. Streets, Vipin Bhatnagar, M. Abolins, S. Youssef, D. A. Stoyanova, Y. Yu, H. Greenlee, G. Di Loreto, V. Sorín, R. Partridge, V. N. Evdokimov, Robert Hirosky, J. G. Lu, Gervasio Gomez, Meenakshi Narain, J. M. Hauptman, G. Guglielmo, Robert Kehoe, V. Zutshi, Gregorio Bernardi, B. Gómez, Randy Ruchti, A. Zieminski, M. Chung, N. K. Mondal, H. T. Diehl, R. K. Shivpuri, X. F. Song, Marvin Johnson, H. Singh, B. Knuteson, H. S. Mao, D. Cullen-Vidal, Hal Evans, Thomas Ferbel, B. Hoeneisen, M. Zanabria, A. V. Kozelov, W. Y. Chen, Gilvan Alves, R. Jesik, Gregory R Snow, T. McKibben, J. Yu, E. Kajfasz, J. Ellison, A. K.A. Maciel, J. F. Bartlett, S. Hansen, K. M. Chan, Dhiman Chakraborty, Cecilia Elena Gerber, V. S. Narasimham, V. V. Babintsev, M. Tartaglia, G. Ginther, L. Stutte, V. Oguri, Thomas G Trippe, Kaushik De, P. van Gemmeren, Jianming Qian, Vladimir Gavrilov, M. Bhattacharjee, S. N. Gurzhiev, S. Y. Jun, P. Z. Quintas, T. L.T. Thomas, A. Jonckheere, M. Sosebee, G. Briskin, V. Sirotenko, J. V. D. Wirjawan, D. Edmunds, Viatcheslav Stolin, S. Protopopescu, Sharon Hagopian, N. Sotnikova, Jeffrey F. Krane, O. V. Eroshin, Phillip Gutierrez, H. Gordon, J. Warchol, Andre Sznajder, R. J. Genik, W. E. Cooper, Stephen Wimpenny, D. Lincoln, Yuri Gershtein, C. Lundstedt, J. Bantly, J. T. White, Ron Lipton, B. Pawlik, L. Oesch, D. R. Green, Darien Wood, L. Babukhadia, Nicholas John Hadley, J. H. Christenson, Andrew Brandt, J. Womersley, Vasken Hagopian, R. J. Madaras, R. Engelmann, S. Blessing, E. A. Kozlovsky, H. Weerts, U. Bassler, Scott Snyder, H.E. Miettinen, Lev Dudko, R. Markeloff, A. S. Ito, A. Para, B. Gibbard, H. D. Wahl, Winston Ko, D. Karmanov, J. Sculli, L. T. Goss, M. H.G. Souza, Nikos Varelas, Alberto Santoro, A. Patwa, A. A. Mayorov, Brajesh C Choudhary, Allan G Clark, S. A. Jerger, D. Toback, T. Joffe-Minor, P. Gartung, A. Leflat, D. Hedin, Chris Hays, H. E. Montgomery, W. G. Cobau, Z. Zhou, J. Solomon, Qiming Li, J. P. Negret, V. A. Bezzubov, E. Flattum, R. Gilmartin, S. Krzywdzinski, H. Jöstlein, R. P. Smith, Michael Shupe, J. McDonald, K. M. Mauritz, P.F. Ermolov, J. Estrada, A. V. Kotwal, Harrison Prosper, Philip Baringer, F. Lehner, A. P. Heinson, J. L. González Solís, Z. Casilum, D. Fein, H. E. Fisk, Daniel John Karmgard, C. Hebert, Jing Li, T. Yasuda, A. V. Kostritskiy, L. Coney, N. Sen, M. Peters, V. Buescher, A. Zylberstejn, E. Smith, E. W. Anderson, V. S. Burtovoi, Allen Mincer, P. Yamin, H. Haggerty, R. Piegaia, P. Padley, Alexey Volkov, James H Cochran, Mitchell Wayne, H. Schellman, J. M. Kohli, J. Thompson, S. Banerjee, Z. H. Zhu, Shashikant Dugad, A. S. Turcot, B. G. Pope, Elizaveta Shabalina, G. Gutierrez, Emanuela Barberis, N. Mokhov, E. Nagy, E. Gallas, N. Amos, G. Eppley, H. da Motta, J. G.R. Lima, D. Zieminska, S. Fuess, R. L. McCarthy, T. Marshall, N. Graf, S. Mani, Peter W. Draper, K. Gounder, M. A.C. Cummings, A. P. Vorobiev, R. Raja, Stephan Linn, N. Oshima, and R. D. Schamberger

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Electroweak interaction, General Physics and Astronomy, Electron, 01 natural sciences, Nuclear physics, Pair production, 0103 physical sciences, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, 010306 general physics, Charged current, Lepton
Abstract

of data collected with the DO detector during 1993-1995. We find that a(p (p) over bar --> W + X)B(W --> tau nu) = 2.22 +/- 0.09 (stat) +/- 0.10 (syst) +/- 0.10 (lum) nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, g(T)(W)/g(e)(W), be unity. We find g(T)(W)/g(e)(W) = 0.980 +/- 0.031, in agreement with lepton universality.

Published
2000

36. Probing Balitsky-Fadin-Kuraev-Lipatov Dynamics in the Dijet Cross Section at Large Rapidity Intervals inpp¯Collisions at√s=1800and 630 GeV

Author

R. Piegaia, P. Padley, Alexey Volkov, Chris Hays, D. A. Stoyanova, James H Cochran, V. A. Bezzubov, Mitchell Wayne, H. Schellman, J. M. Kohli, H. Jöstlein, Suyong Choi, R. P. Smith, Gervasio Gomez, B. May, J. Thompson, N. W. Reay, David H. Adams, Alice Bean, D. Buchholz, T. McMahon, Z. H. Zhu, Michael Shupe, Shashikant Dugad, G. Di Loreto, B. Gobbi, Wendy Taylor, Anurag Gupta, D. Cullen-Vidal, A. S. Turcot, A. Patwa, Marvin Johnson, J. Estrada, Jasvinder A. Singh, Gregorio Bernardi, Allan G Clark, A. V. Kozelov, N. R. Stanton, A. Zylberstejn, S. Negroni, A. V. Kotwal, Harrison Prosper, Hal Evans, Thomas Ferbel, M. Chung, V. Buescher, T. Fahland, R. A. Sidwell, S. Hansen, S. Chopra, G. Eppley, Anna Goussiou, P. Gartung, A. Baden, L. Stutte, V. Oguri, E. W. Anderson, A. Para, G. Guglielmo, K. Genser, K. Streets, Vipin Bhatnagar, R. Partridge, J. A. Wightman, B. Gómez, N. I. Bojko, R. Yamada, Gregory R Snow, G. C. Blazey, H. da Motta, J. G.R. Lima, S. Fuess, M. Demarteau, S. Protopopescu, H. Gordon, J. Kotcher, D. Fein, H. E. Fisk, J. Sculli, Daniel John Karmgard, B. Pawlik, H. S. Mao, L. Lueking, C. Hebert, R. Snihur, E. Popkov, Allen Mincer, M. Zielinski, R. D. Martin, T. Heuring, J. Warchol, N. Parua, H. Haggerty, M. Zanabria, Jing Li, Nikos Varelas, T. Yasuda, K. M. Mauritz, P. I. Goncharov, D. P. Stoker, A. P. Heinson, M. Strauss, A. V. Kostritskiy, M. Kubantsev, D. Zieminska, Bobby Samir Acharya, H. A. Neal, Heriberto Castilla-Valdez, J. L. González Solís, H. C. Shankar, J. T. Linnemann, Z. Casilum, M. Peters, Stephen Wimpenny, M. Diesburg, M. Roco, E. Smith, Ulrich Heintz, C. S. Mishra, K. Yip, P.F. Ermolov, D. Norman, C. Miao, B. Olivier, L. Coney, N. Sen, M. L. Stevenson, P. Gutierrez, S. Grünendahl, J. T. White, R. J. Madaras, S. N. Gurzhiev, H. L. Melanson, H. D. Wahl, Winston Ko, B. Hoeneisen, Y. Kulik, A. A. Mayorov, T. Marshall, Darien Wood, M. Abolins, K. Del Signore, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, S. Rajagopalan, A.S. Dyshkant, H. Piekarz, Nicholas John Hadley, Viatcheslav Stolin, B. Baldin, M. Jones, Andrew White, K. A. Johns, R. Jesik, V. S. Burtovoi, E. G. Zverev, N. K. Mondal, H. T. Diehl, V. D. Elvira, D. Casey, D. Hedin, C. Lundstedt, J. Snow, P. Grudberg, F. Fleuret, R. E. Hall, J. Tarazi, A. Zieminski, R. L. McCarthy, Shuichi Kunori, J. P. Negret, S. Blessing, R. Markeloff, Alexander Leflat, M. Strovink, P. M. Tuts, S. Youssef, Ron Lipton, P. C. Bhat, A. P. Vorobiev, R. Raja, H. Singh, V. Vaniev, J. Ellison, A. K.A. Maciel, J. Womersley, Vasken Hagopian, R. W. Stephens, S. Feher, John Hobbs, S. Snyder, C. Klopfenstein, H. Weerts, Stephan Linn, Orin I. Dahl, John Rutherfoord, D. Shpakov, Mary Beth Adams, Meenakshi Narain, N. Graf, Robert Hirosky, Robert Kehoe, V. Zutshi, S. Reucroft, T. Rockwell, Iain Alexander Bertram, G. Steinbrück, V. Sorín, H. Zheng, Michael Rijssenbeek, L. T. Goss, N. Oshima, S. Kahn, B. Knuteson, D. Coppage, W. Y. Chen, Gilvan Alves, D. Karmanov, F. Borcherding, D. Denisov, R. D. Schamberger, S. K. Kim, Lev Dudko, Alexander Belyaev, K. M. Chan, Dhiman Chakraborty, Kaushik De, P. van Gemmeren, N. Sotnikova, R. J. Genik, Brajesh C Choudhary, V. N. Evdokimov, M. H.G. Souza, J. V. D. Wirjawan, V. Akimov, F. Stichelbaut, Patrick Slattery, Brad Abbott, K. C. Frame, V. S. Narasimham, Thomas G Trippe, M. Bhattacharjee, James C. Green, K. Gounder, M. Sosebee, S. P. Denisov, Z. Yu, Daniel Whiteson, M. A.C. Cummings, A. S. Ito, D. Lincoln, J. Bantly, A. Juste, Sharon Hagopian, M. Fortner, K. S. Hahn, M. R. Krishnaswamy, Andrew Brandt, R. Engelmann, E. A. Kozlovsky, Y. Ducros, B. Gibbard, D. Cutts, W. E. Cooper, Wagner Carvalho, Sergey Chekulaev, H.E. Miettinen, Haiyan Wang, J. Perkins, J. F. Bartlett, G. Brooijmans, S. Y. Jun, Vladimir Gavrilov, Greg Landsberg, X. F. Song, J. G. Lu, T. L.T. Thomas, V. Sirotenko, P. Rubinov, Sergey Kuleshov, P. Yamin, K. W. Merritt, N. Amos, Emanuela Barberis, M. Paterno, N. Parashar, A. Boehnlein, O. V. Eroshin, V.V. Abramov, J. H. Christenson, N. Mokhov, S. Mani, Peter W. Draper, E. Gallas, V. Manankov, M. M. Baarmand, Sarah Catherine Eno, P. Hanlet, G. Watts, E. Nagy, F. Nang, R. K. Shivpuri, Arnaud Lucotte, Suman Bala Beri, Randy Ruchti, Y. Fisyak, A. Jonckheere, D. Edmunds, Andre Sznajder, Yuri Gershtein, L. Oesch, L. Babukhadia, B. Connolly, Richard Breedon, H. Greenlee, M. Mostafa, A. N. Galyaev, D. K. Cho, Daniel R Claes, A. Schwartzman, M. Merkin, L. Sawyer, A. Bross, Raymond Brock, Boaz Klima, E. Kajfasz, S. Willis, T. McKibben, J. Yu, P. Z. Quintas, B. G. Pope, Elizaveta Shabalina, G. Gutierrez, S. Grinstein, S. A. Jerger, H. E. Montgomery, W. G. Cobau, S. Tentindo-Repond, J. McDonald, Philip Baringer, F. Lehner, S. Banerjee, D. Mihalcea, J. M. Hauptman, Cecilia Elena Gerber, V. V. Babintsev, G. Ginther, Jianming Qian, G. Briskin, Jeffrey F. Krane, T. Joffe-Minor, L. J. Pan, Z. Zhou, J. Solomon, Qiming Li, E. Flattum, R. Gilmartin, S. Krzywdzinski, U. Bassler, Alberto Santoro, D. Toback, and M. I. Martin

Subjects
Physics, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, General Physics and Astronomy, Parton, HERA, Deep inelastic scattering, 01 natural sciences, Nuclear physics, Pomeron, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Resummation, Nuclear Experiment, 010306 general physics
Abstract

Inclusive dijet production at large pseudorapidity intervals (Delta eta) between the two jets has been suggested as a regime for observing Balitsky-Fadin-Kuraev-Lipatov (BFKL) dynamics. We have measured the dijet cross section for large Delta eta in p (p) over bar collisions at root s = 1800 and 630 GeV using the D0 detector. The partonic cross section increases strongly with the size of Delta eta; The observed growth is even stronger than expected on the basis of BFKL resummation in the leading logarithmic approximation. The growth of the partonic cross section can be accommodated with an effective BFKL intercept of alpha(BFKL)(20 GeV) = 1.65 +/- 0.07.

Published
2000

37. Small-Angle Muon and Bottom-Quark Production inpp¯Collisions at√s=1.8TeV

Author

Cecilia Elena Gerber, V. V. Babintsev, G. Ginther, Jianming Qian, P. Hanlet, D. Coppage, M. Sosebee, T. McMahon, G. Briskin, B. May, J. Bantly, Jeffrey F. Krane, P. I. Goncharov, S. Youssef, S. Choi, C. Miao, Neeti Parashar, H. L. Melanson, P. Z. Quintas, A. Sanchez-Hernandez, S. Reucroft, Andrew Brandt, R. Engelmann, M. Zielinski, Robert Kehoe, B. Gobbi, V. Zutshi, I. Adam, P. Rubinov, T. Joffe-Minor, Anurag Gupta, Andrew White, R. K. Shivpuri, P. Grudberg, C. Klopfenstein, E. A. Kozlovsky, H.E. Miettinen, M. Tartaglia, K. W. Merritt, Kaushik De, B. Gibbard, H. E. Fisk, J. H. Christenson, J. F. Bartlett, V. Manankov, Elizabeth Gallas, Jasvinder A. Singh, M. Abolins, Y. Fisyak, Pushpalatha C Bhat, C. Yoshikawa, J. Sculli, L. Magaña-Mendoza, Z. Zhou, J. Solomon, John Hobbs, Nikos Varelas, Heriberto Castilla-Valdez, K. M. Mauritz, Stephen Wimpenny, G. Eppley, Marvin Johnson, N. Amos, P.F. Ermolov, T. Marshall, Young-Sang Yu, C. S. Mishra, T. Fahland, N. K. Mondal, Darien Wood, B. Knuteson, X. F. Song, B. Pawlik, Nicholas John Hadley, K. Gounder, V. S. Burtovoi, S. Blessing, K. A. Johns, M. Merkin, M. Bhattacharjee, A. V. Kozelov, S. P. Denisov, L. Babukhadia, P. Bloom, J. A. Wightman, N. I. Bojko, Scott Snyder, R. Markeloff, E. Flattum, H. da Motta, J. G.R. Lima, S. N. Gurzhiev, G. Guglielmo, M. A.C. Cummings, H. T. Diehl, H. Singh, A. Boehnlein, R. Hernández-Montoya, N. Sotnikova, M. R. Krishnaswamy, E. G. Zverev, F. Hsieh, K. S. Hahn, L. Lueking, S. A. Jerger, A. Leflat, Richard Breedon, Raymond Brock, Boaz Klima, R. D. Martin, T. Heuring, J. Ellison, D. Casey, J. Kotcher, D. Cutts, M. L. Stevenson, Vasken Hagopian, E. Smith, A. Para, Wagner Carvalho, M. Fortner, N. W. Reay, J. Perkins, A. K.A. Maciel, M. Chung, B. Hoeneisen, Lee Sawyer, Sergey Chekulaev, J. G. Lu, J. V.D. Wirjawan, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, W. G. Cobau, M. I. Martin, Sharon Hagopian, D. Norman, Viatcheslav Stolin, H. Piekarz, H. Weerts, A. S. Ito, Lev Dudko, K. Del Signore, Greg Landsberg, H. D. Wahl, M. Zanabria, T. L. Geld, Winston Ko, Meenakshi Narain, S. Willis, B. Baldin, N. Graf, J. McKinley, Joan A. Guida, J. McDonald, Emanuela Barberis, S. Fuess, Alberto Santoro, Seong Keun Kim, D. Toback, A. Narayanan, Y. Ducros, M. Paterno, T. Yasuda, A. Baden, G. Di Loreto, G. C. Blazey, Y. M. Park, K. Streets, Vipin Bhatnagar, Philip Baringer, V. Oguri, L. T. Goss, D. Denisov, R. Partridge, Vladimir Gavrilov, Gordon Watts, Allan G Clark, V. Sirotenko, M. H.G. Souza, D. P. Stoker, S.A. Kahn, S. Banerjee, Sergey Kuleshov, Howard Gordon, V. Akimov, K. C. Frame, Victor Daniel Elvira, M. Demarteau, Y. Kulik, R. Yamada, P. Gartung, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, Dan Green, A. N. Galyaev, S. H. Ahn, O. Ramirez, R. Piegaia, Shuichi Kunori, P. M. Tuts, O. V. Eroshin, Phillip Gutierrez, F. Stichelbaut, J. Warchol, P. Yepes, H. E. Montgomery, R. Snihur, V. Vaniev, T. McKibben, D. K. Cho, N. R. Stanton, R. W. Stephens, Orin I. Dahl, F. Landry, John Rutherfoord, Mary Beth Adams, R. J. Genik, J. Womersley, Robert Hirosky, V.V. Abramov, H. Haggerty, H. S. Mao, D. L. Adams, Matthew Jones, A. Jonckheere, W. E. Cooper, Daniel R Claes, R. Jesik, James C. Green, D. Karmanov, D. Buchholz, A. P. Vorobiev, Stephan Linn, C. Cretsinger, Arnaud Lucotte, N. Oshima, W. Y. Chen, G. Gutierrez, Gilvan Alves, D. Edmunds, F. Borcherding, M. Strovink, P. Tamburello, Daria Zieminska, R. D. Schamberger, M. A. Kubantsev, R. L. McCarthy, B. G. Pope, N. Parua, Randy Ruchti, Brajesh C Choudhary, S. Chopra, Anna Goussiou, V. S. Narasimham, Thomas G Trippe, Gregory R Snow, Miguel Mostafa, A. A. Mayorov, M. M. Baarmand, Elizaveta Shabalina, Sarah Catherine Eno, P. Yamin, M. K. Fatyga, G. Steinbrück, Andre Sznajder, Yuri Gershtein, J. Snow, S. Mani, Bobby Samir Acharya, H. A. Neal, Peter Nemethy, M. Roco, H. C. Shankar, J. T. Linnemann, J. T. White, R. Madden, F. Nang, Peter W. Draper, Richard B. Lipton, K. Yip, M. D. Peters, S. Feher, Jinhong Yu, L. Oesch, A.S. Dyshkant, Michael A. Strauss, K. M. Chan, Dhiman Chakraborty, A. Zieminski, C. Boswell, Suman Bala Beri, R. A. Sidwell, S. Y. Jun, T. L.T. Thomas, H. Tong, Rajendran Raja, Brad Abbott, R. J. Madaras, J. M. Guida, D. Hedin, Chris Hays, V. A. Bezzubov, J. P. Negret, R. P. Smith, Michael Shupe, J. Estrada, A. V. Kotwal, Harrison Prosper, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, V. N. Evdokimov, D.S. Koltick, E. W. Anderson, Q. Z. Li, Allen Mincer, Sebastian Grinstein, A. V. Kostritskiy, Sissel Hansen, S. Krzywdzinski, L. Coney, A. Zylberstejn, P. Padley, Alexey Volkov, James H Cochran, H. Greenlee, Mitchell Wayne, H. Schellman, J. M. Kohli, Stefan Grünendahl, J. Thompson, B. Gómez, Z. H. Zhu, A. Bross, Shashikant Dugad, Alexander Belyaev, Serban Protopopescu, D. Fein, Don Lincoln, Erich Varnes, Patrick Slattery, Daniel John Karmgard, C. Hebert, Jing Li, N.V. Mokhov, G. E. Forden, A. P. Heinson, R. E. Hall, J. L. González Solís, Z. Casilum, Y. Pischalnikov, Ulrich Heintz, H. Jöstlein, M. Diesburg, D. Owen, J. Tarazi, D. A. Stoyanova, Gervasio Gomez, C. Shaffer, D. Cullen-Vidal, K. Genser, D. Shpakov, and J. M. Hauptman

Subjects
Quark, Quantum chromodynamics, Physics, Particle physics, Muon, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Jet (particle physics), Bottom quark, Nuclear physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Rapidity, Fermilab
Abstract

This Letter describes a measurement of the muon cross section originating from b quark decay in the forward rapidity range 2.4 < y(mu) < 3.2 in pbarp collisions at sqrt(s) = 1.8 TeV. The data used in this analysis were collected by the D0 experiment at the Fermilab Tevatron. We find that NLO QCD calculations underestimate b quark production by a factor of four in the forward rapidity region. A cross section measurement using muon+jet data has been included in this version of the paper.

Published
2000

38. Differential Production Cross Section ofZBosons as a Function of Transverse Momentum ats=1.8TeVTeV

Author

C. Cretsinger, T. Fahland, A. Baden, R. K. Shivpuri, M. Strovink, Y. Pischalnikov, Ulrich Heintz, H. Jöstlein, G. C. Blazey, M. Diesburg, R. Yamada, D. Owen, Ron Lipton, J. Womersley, J. Tarazi, E. G. Zverev, M. Tartaglia, Kaushik De, S. H. Ahn, M. H.G. Souza, P. Yepes, H. E. Montgomery, E. W. Anderson, T. McMahon, E. Flattum, J. M. Hauptman, Cecilia Elena Gerber, H. L. Melanson, P. Z. Quintas, Orin I. Dahl, F. Landry, John Rutherfoord, D. Karmanov, Q. Z. Li, Mary Beth Adams, V. V. Babintsev, G. Ginther, E. Smith, Allan G Clark, D. Edmunds, J. H. Christenson, Allen Mincer, K. M. Mauritz, P.F. Ermolov, Jianming Qian, S. A. Jerger, Sebastian Grinstein, Andre Sznajder, Meenakshi Narain, H. Tong, Brajesh C Choudhary, P. Gartung, V. S. Burtovoi, James C. Green, Yuri Gershtein, D. Buchholz, P. Tamburello, R. Snihur, S. Chopra, Anna Goussiou, G. Briskin, L. Lueking, Jeffrey F. Krane, M. D. Peters, Gregory R Snow, Andrew White, Rajendran Raja, A. Leflat, A. Narayanan, P. Grudberg, Chris Hays, L. Oesch, K. Del Signore, Stephen Wimpenny, P. Padley, B. May, Alexey Volkov, W. G. Cobau, M. I. Martin, Elizabeth Gallas, F. Borcherding, Michael A. Strauss, Brad Abbott, G. Eppley, S. Fuess, M. Chung, Heriberto Castilla-Valdez, N.V. Mokhov, James H Cochran, T. Marshall, M. Sosebee, A. Jonckheere, K. Streets, Vipin Bhatnagar, A. P. Vorobiev, John Hobbs, Young-Sang Yu, V. A. Bezzubov, Darien Wood, Nicholas John Hadley, Alexander Belyaev, Mitchell Wayne, H. Schellman, J. M. Kohli, Stefan Grünendahl, J. Thompson, J. Bantly, C. Boswell, J. McDonald, H. D. Wahl, M. Zanabria, Winston Ko, G. E. Forden, A. P. Heinson, S. Feher, B. Gobbi, Anurag Gupta, J. P. Negret, R. P. Smith, Miguel Mostafa, M. M. Baarmand, Sarah Catherine Eno, Stephan Linn, D. P. Stoker, B. Gómez, Z. H. Zhu, Alberto Santoro, Suman Bala Beri, Vladimir Gavrilov, A. Zieminski, Shashikant Dugad, N. Oshima, S. Blessing, Scott Snyder, R. Markeloff, Andrew Brandt, Daria Zieminska, R. D. Schamberger, Jasvinder A. Singh, Philip Baringer, Gordon Watts, V. Sirotenko, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. T. Linnemann, K. Yip, Michael Shupe, R. Partridge, Patrick Slattery, D. A. Stoyanova, A. N. Galyaev, R. Engelmann, F. Nang, K. S. Hahn, D. Cutts, Seong Keun Kim, D. Toback, O. V. Eroshin, Gervasio Gomez, T. Yasuda, Wagner Carvalho, A. V. Kostritskiy, S. Banerjee, R. E. Hall, J. L. González Solís, Z. Casilum, E. A. Kozlovsky, H.E. Miettinen, M. A. Kubantsev, K. M. Chan, Dhiman Chakraborty, S. N. Gurzhiev, Jinhong Yu, T. Joffe-Minor, A.S. Dyshkant, R. A. Sidwell, Sissel Hansen, S. Y. Jun, T. L.T. Thomas, J. Estrada, Phillip Gutierrez, H. da Motta, J. G.R. Lima, A. S. Ito, Greg Landsberg, Richard Breedon, Pushpalatha C Bhat, H. E. Fisk, L. Coney, C. Klopfenstein, K. Gounder, B. Gibbard, H. S. Mao, D. L. Adams, Z. Zhou, J. Solomon, M. Bhattacharjee, F. Stichelbaut, T. L. Geld, D. K. Cho, C. Shaffer, D. Cullen-Vidal, K. Genser, A. V. Kotwal, Harrison Prosper, T. McKibben, N. R. Stanton, V.V. Abramov, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, J. Sculli, M. Paterno, Y. Fisyak, Viatcheslav Stolin, Sharon Hagopian, D. Fein, J. McKinley, K. A. Johns, Nikos Varelas, W. E. Cooper, T. Heuring, Marvin Johnson, R. L. McCarthy, Matthew Jones, B. Pawlik, R. Jesik, L. Babukhadia, Daniel R Claes, B. Knuteson, X. F. Song, A. V. Kozelov, Y. M. Park, S.A. Kahn, R. Hernández-Montoya, D. Casey, J. Kotcher, Peter Nemethy, M. Roco, Don Lincoln, Erich Varnes, R. Piegaia, T. Rockwell, Iain Alexander Bertram, Arnaud Lucotte, M. Demarteau, N. Sotnikova, Michael Rijssenbeek, B. G. Pope, N. Graf, Y. Kulik, Daniel John Karmgard, N. Parua, Randy Ruchti, V. Oguri, V. N. Evdokimov, C. S. Mishra, D.S. Koltick, R. J. Genik, L. Magaña-Mendoza, G. Guglielmo, P. Yamin, Neeti Parashar, Elizaveta Shabalina, Vasken Hagopian, M. Merkin, C. Hebert, H. Weerts, J. Warchol, Lev Dudko, R. J. Madaras, M. Zielinski, Raymond Brock, Boaz Klima, S. Mani, Joan A. Guida, D. Norman, S. Willis, J. M. Guida, D. Hedin, R. Madden, G. Di Loreto, Peter W. Draper, D. Denisov, J. V.D. Wirjawan, M. Abolins, J. T. White, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, Dan Green, N. K. Mondal, H. T. Diehl, H. Singh, A. Boehnlein, J. Ellison, A. K.A. Maciel, Shuichi Kunori, V. Vaniev, Jing Li, D. Shpakov, P. Hanlet, S. Krzywdzinski, M. Fortner, N. W. Reay, D. Coppage, J. Perkins, A. Zylberstejn, S. Reucroft, S. Youssef, J. G. Lu, S. Choi, H. Greenlee, C. Yoshikawa, A. Bross, P. M. Tuts, R. W. Stephens, Serban Protopopescu, A. Sanchez-Hernandez, Robert Hirosky, Robert Kehoe, W. Y. Chen, G. Gutierrez, Gilvan Alves, V. Zutshi, V. S. Narasimham, Thomas G Trippe, A. A. Mayorov, M. K. Fatyga, G. Steinbrück, J. Snow, I. Adam, P. Rubinov, B. Baldin, K. W. Merritt, J. F. Bartlett, V. Manankov, Y. Ducros, Howard Gordon, V. Akimov, K. C. Frame, O. Ramirez, S. P. Denisov, Sergey Kuleshov, N. Amos, M. R. Krishnaswamy, F. Hsieh, P. I. Goncharov, A. Para, Sergey Chekulaev, Victor Daniel Elvira, P. Bloom, J. A. Wightman, C. Miao, Emanuela Barberis, N. I. Bojko, R. D. Martin, L. T. Goss, M. L. Stevenson, H. Haggerty, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, and H. Piekarz

Subjects
Quantum chromodynamics, Physics, Particle physics, High Energy Physics::Phenomenology, Monte Carlo method, Tevatron, General Physics and Astronomy, D0 experiment, law.invention, Nuclear physics, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Resummation, Collider, Boson
Abstract

We present a measurement of the transverse momentum distribution of Z bosons produced in ppbar collisions at sqrt{s}=1.8 TeV using data collected by the D0 experiment at the Fermilab Tevatron Collider during 1994--1996. We find good agreement between our data and a current resummation calculation. We also use our data to extract values of the non-perturbative parameters for a particular version of the resummation formalism, obtaining significantly more precise values than previous determinations.

Published
2000

39. Isolated Photon Cross Section inpp¯Collisions at√s=1.8TeV

Author

J. A. Wightman, N. I. Bojko, R. D. Martin, J. M. Hauptman, Cecilia Elena Gerber, V. V. Babintsev, N.V. Mokhov, G. Ginther, E. Popkov, C. Klopfenstein, M. L. Stevenson, Jianming Qian, G. Briskin, A. P. Heinson, Chris Hays, V. A. Bezzubov, R. E. Hall, C. S. Mishra, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, J. L. González Solís, B. May, G. Guglielmo, F. Fleuret, Z. Casilum, J. Womersley, P. Yamin, J. P. Negret, R. P. Smith, Michael Shupe, D. Buchholz, H. A. Neal, H. C. Shankar, V. Sorín, K. Yip, L. Stutte, Jinhong Yu, A.S. Dyshkant, B. Knuteson, X. F. Song, Raymond Brock, Boaz Klima, B. Gobbi, A. Baden, D. Norman, D. Karmanov, S. Negroni, E. G. Zverev, Brajesh C Choudhary, J. Estrada, Suyong Choi, Vasken Hagopian, S. Mani, Stephen Wimpenny, A. R. Clark, T. Marshall, D. Fein, N. Sotnikova, R. J. Genik, M. Fortner, N. W. Reay, J. Perkins, J. G. Lu, A. V. Kotwal, Harrison Prosper, Don Lincoln, Daniel John Karmgard, C. Hebert, G. C. Blazey, R. Yamada, U. Bassler, S. H. Ahn, H. Weerts, Meenakshi Narain, Lev Dudko, Andrew White, Peter W. Draper, Darien Wood, Shuichi Kunori, Nicholas John Hadley, K. A. Johns, V. Vaniev, S. Blessing, Scott Snyder, S. Willis, S. Chopra, Anna Goussiou, L. Lueking, S. P. Denisov, Anurag Gupta, S. Feher, S. Youssef, D. A. Stoyanova, Jing Li, S. Krzywdzinski, Orin I. Dahl, John Rutherfoord, P. Grudberg, G. Di Loreto, A. Jonckheere, R. Markeloff, Gregory R Snow, Gregorio Bernardi, D. Denisov, Alberto Santoro, A. N. Galyaev, M. R. Krishnaswamy, A. P. Vorobiev, Stephan Linn, A. Zieminski, Robert Kehoe, A. Zylberstejn, V. Zutshi, R. J. Madaras, H. Haggerty, K. Del Signore, D. K. Cho, D. Shpakov, J. V.D. Wirjawan, Srinivasan Rajagopalan, F. Lehner, K. M. Mauritz, P.F. Ermolov, H. Greenlee, A. Bross, M. Merkin, N. Oshima, Daria Zieminska, E. Kajfasz, V.V. Abramov, H. D. Wahl, F. Hsieh, John Hobbs, D. Hedin, H. Zheng, P. Hanlet, Hal Evans, Thomas Ferbel, M. Sosebee, K. Streets, V. S. Burtovoi, Matthew Jones, P. Padley, Serban Protopopescu, Arnaud Lucotte, T. Heuring, M. R. Adams, Young-Sang Yu, D. Coppage, A. Para, W. E. Cooper, Sergey Chekulaev, P. M. Tuts, R. W. Stephens, M. Zanabria, Winston Ko, R. A. Sidwell, S. Y. Jun, T. L.T. Thomas, M. A. Kubantsev, P. I. Goncharov, Alexey Volkov, V. Oguri, B. Baldin, Gervasio Gomez, T. Fahland, Elemer Nagy, Emanuela Barberis, Vipin Bhatnagar, B. Gibbard, J. Sculli, D. Toback, T. Joffe-Minor, H. E. Fisk, L. T. Goss, T. Rockwell, Iain Alexander Bertram, Z. Zhou, J. Solomon, K. Genser, Robert Hirosky, Pushpalatha C Bhat, C. Miao, Y. Ducros, J. B. Singh, K. Gounder, James H Cochran, J. Bantly, Nikos Varelas, R. K. Shivpuri, Michael Rijssenbeek, Rajendran Raja, B. Olivier, D. P. Stoker, N. Parua, Gustaaf Brooijmans, Mitchell Wayne, H. Schellman, J. M. Kohli, E. Flattum, D. R. Claes, P. van Gemmeren, M. Tartaglia, R. Gilmartin, W. Y. Chen, G. Gutierrez, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, Y. Kulik, Randy Ruchti, D. Cullen-Vidal, J. Warchol, R. Partridge, Gilvan Alves, Kaushik De, Brad Abbott, Sergey Kuleshov, Stefan Grünendahl, G. Steinbrück, Ariel Schwartzman, S. Reucroft, E. Smith, V. N. Evdokimov, D.S. Koltick, T. Yasuda, S. R. Dugad, J. Thompson, A. Patwa, Victor Daniel Elvira, M. Abolins, J. T. Linnemann, Andrew Brandt, R. Engelmann, Vladimir Gavrilov, V. S. Narasimham, Thomas G Trippe, S.A. Kahn, M. Demarteau, Gordon Watts, V. Sirotenko, B. Gómez, Elizabeth Gallas, T. McMahon, Howard Gordon, V. Akimov, H. Jostlein, O. V. Eroshin, E. A. Kozlovsky, H.E. Miettinen, Z. H. Zhu, K. C. Frame, Phillip Gutierrez, Y. Fisyak, R. D. Schamberger, P. Gartung, L. Babukhadia, J. Snow, Marvin Johnson, P. Rubinov, M. H.G. Souza, A. V. Kozelov, H. S. Mao, K. W. Merritt, Alexander Belyaev, J. F. Bartlett, B. S. Acharya, V. Manankov, A. S. Turcot, A. A. Mayorov, N. K. Mondal, Sharon Hagopian, H. T. Diehl, H. Singh, Patrick Slattery, H. E. Montgomery, M. Strovink, N. Amos, J. Krane, A. Boehnlein, A. V. Kostritskiy, M. Bhattacharjee, Sissel Hansen, Y. Pischalnikov, Ulrich Heintz, J. Ellison, A. K.A. Maciel, D. Green, R. Piegaia, S. Fuess, R. Snihur, L. Coney, H. L. Melanson, P. Z. Quintas, N. Sen, M. Diesburg, S. N. Gurzhiev, R. L. McCarthy, S. K. Kim, D. Owen, J. Tarazi, J. H. Christenson, Viatcheslav Stolin, C. Lundstedt, M. Roco, David H. Adams, G. Eppley, H. da Motta, J. G.R. Lima, K. M. Chan, Dhiman Chakraborty, A. S. Ito, F. Stichelbaut, V. Buescher, Neeti Parashar, M. Zielinski, Heriberto Castilla-Valdez, B. Pawlik, E. W. Anderson, D. Casey, J. Kotcher, Q. Z. Li, Allen Mincer, Sebastian Grinstein, Michael A. Strauss, B. G. Pope, Suman Bala Beri, Elizaveta Shabalina, Richard Breedon, J. T. White, T. McKibben, N. R. Stanton, R. Jesik, M. Chung, D. Edmunds, S. A. Jerger, A. Leflat, Andre Sznajder, W. G. Cobau, M. I. Martin, Yuri Gershtein, M. D. Peters, L. Oesch, J. McDonald, Philip Baringer, S. Banerjee, N. Graf, James C. Green, K. S. Hahn, D. Cutts, Wagner Carvalho, Greg Landsberg, B. Connolly, M. Paterno, F. Borcherding, Miguel Mostafa, M. M. Baarmand, Sarah Catherine Eno, F. Nang, and Richard B. Lipton

Subjects
Quantum chromodynamics, Physics, Photon, Secondary education, Meson, 010308 nuclear & particles physics, Information storage, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Nuclear physics, Transverse plane, Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Research method
Abstract

We report a new measurement of the cross section for the production of isolated photons, with transverse energies (ET) above 10 GeV and pseudorapidities |eta| 36 GeV.

Published
2000

40. Search for Second Generation Leptoquark Pairs Decaying toμν+jetsinpp¯Collisions at√s=1.8TeV

Author

H. da Motta, J. G.R. Lima, C. Murphy, T. Heuring, D. Buchholz, Y. Kulik, S. Krzywdzinski, A. Zylberstejn, A. S. Ito, M. Chung, B. May, H. Greenlee, P. Tamburello, Pushpalatha C Bhat, B. Gobbi, S. Chopra, Anurag Gupta, T. Yasuda, A. Bross, Anna Goussiou, E. W. Anderson, R. Snihur, K. Gounder, P. Bloom, K. S. Hahn, J. A. Wightman, Serban Protopopescu, Joan A. Guida, F. Stichelbaut, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, Q. Z. Li, D. A. Stoyanova, R. Hernández Montoya, J. V.D. Wirjawan, L. Lueking, Gregory R Snow, S. R. Dugad, D. Green, D. Cutts, Andrew White, Allen Mincer, N. I. Bojko, H. D. Wahl, R. D. Martin, T. Rockwell, Iain Alexander Bertram, H. L. Melanson, P. Z. Quintas, Stephen Wimpenny, Michael Rijssenbeek, N.V. Mokhov, Howard Gordon, V. Akimov, G. Di Loreto, K. Del Signore, Sebastian Grinstein, Winston Ko, V.V. Abramov, P. Grudberg, K. Genser, Gervasio Gomez, K. C. Frame, O. Ramirez, B. Knuteson, G. E. Forden, A. P. Heinson, B. Zhang, D. Denisov, S. K. Kim, Greg Landsberg, A. R. Clark, Y. M. Park, M. H.G. Souza, J. H. Christenson, Matthew Jones, T. Marshall, V. N. Evdokimov, A. V. Kostritskiy, Sissel Hansen, D.S. Koltick, J. T. Linnemann, Chris Hays, Srinivasan Rajagopalan, Hal Evans, Thomas Ferbel, S.A. Kahn, M. Demarteau, H. A. Neal, H. C. Shankar, S. P. Denisov, M. L. Stevenson, V. A. Bezzubov, J. P. Negret, R. P. Smith, K. Yip, Elizabeth Gallas, H. Jostlein, M. R. Krishnaswamy, J. Mc Kinley, Rajendran Raja, John Hobbs, Michael Shupe, L. Magaña-Mendoza, Brad Abbott, T. L. Geld, Arnaud Lucotte, Darien Wood, R. E. Hall, J. L. González Solís, Z. Casilum, F. Hsieh, L. Coney, M. R. Adams, P. Yepes, H. E. Montgomery, D. Shpakov, Dhiman Chakraborty, Young-Sang Yu, Jinhong Yu, C. Klopfenstein, A.S. Dyshkant, K. M. Mauritz, P. M. Tuts, R. W. Stephens, C. Shaffer, D. Cullen-Vidal, T. Fahland, A. V. Kotwal, Harrison Prosper, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, A. Para, Nicholas John Hadley, D. Fein, Robert Hirosky, Sergey Chekulaev, H. Piekarz, M. Paterno, Sharon Hagopian, P.F. Ermolov, S. Blessing, S. Feher, L. Babukhadia, A. Jonckheere, Neeti Parashar, N. Parua, Scott Snyder, N. N. Biswas, Randy Ruchti, R. Piegaia, Don Lincoln, Erich Varnes, W. Y. Chen, P. Padley, E. Flattum, P. Hanlet, A. P. Vorobiev, Stephan Linn, M. Zielinski, G. Gutierrez, Gilvan Alves, I. Adam, P. Rubinov, V. S. Burtovoi, Alexey Volkov, B. Pawlik, A. Baden, C. S. Mishra, G. Guglielmo, James H Cochran, Daniel John Karmgard, Meenakshi Narain, K. W. Merritt, N. Oshima, Daria Zieminska, R. Markeloff, S. Youssef, R. J. Madaras, Mitchell Wayne, H. Schellman, J. M. Kohli, S. Choi, C. Hebert, V. S. Narasimham, Thomas G Trippe, D. Coppage, J. Womersley, J. F. Bartlett, V. Manankov, A. Zieminski, Stefan Grünendahl, J. Thompson, V. Oguri, M. A. Kubantsev, G. C. Blazey, E. Smith, A. A. Mayorov, Vasken Hagopian, H. Weerts, J. M. Guida, B. Gómez, S. N. Gurzhiev, D. Hedin, Z. H. Zhu, D. Karmanov, M. K. Fatyga, G. Steinbrück, A. Sanchez-Hernandez, D. Casey, N. Sotnikova, Robert Kehoe, J. Kotcher, J. Snow, R. Yamada, S. H. Ahn, B. Gibbard, E. G. Zverev, Brajesh C Choudhary, R. A. Sidwell, Peter Nemethy, M. Roco, A. Narayanan, J. Warchol, M. Sosebee, V. Zutshi, Lev Dudko, Jing Li, S. Y. Jun, T. L.T. Thomas, P. Gartung, D. Edmunds, Viatcheslav Stolin, Raymond Brock, Heriberto Castilla-Valdez, N. Graf, Orin I. Dahl, F. Landry, John Rutherfoord, J. Sculli, B. S. Acharya, Boaz Klima, K. Streets, Vipin Bhatnagar, B. G. Pope, R. Partridge, Andre Sznajder, Yuri Gershtein, Y. Pischalnikov, Ulrich Heintz, J. Bantly, Vladimir Gavrilov, Nikos Varelas, R. K. Shivpuri, M. D. Peters, S. Reucroft, Gordon Watts, V. Sirotenko, Elizaveta Shabalina, Y. Fisyak, R. Mc Carthy, H. S. Mao, D. Norman, D. R. Claes, D. L. Adams, O. V. Eroshin, M. Diesburg, C. Yoshikawa, Phillip Gutierrez, James C. Green, M. Tartaglia, F. Borcherding, J. T. White, B. Baldin, D. Owen, L. Oesch, Kaushik De, Y. Ducros, Andrew Brandt, J. Tarazi, Marvin Johnson, R. Engelmann, M. Merkin, S. Willis, J. M. Hauptman, J. B. Singh, A. V. Kozelov, E. A. Kozlovsky, H.E. Miettinen, C. K. Jung, Michael A. Strauss, A. N. Galyaev, Miguel Mostafa, N. R. Stanton, M. M. Baarmand, Sergey Kuleshov, Sarah Catherine Eno, T. Mc Kibben, Cecilia Elena Gerber, C. Cretsinger, V. V. Babintsev, Victor Daniel Elvira, M. Strovink, Jianming Qian, W. E. Cooper, F. Nang, Richard B. Lipton, Alexander Belyaev, R. Jesik, C. Boswell, A. L. Lyon, G. Briskin, M. Bhattacharjee, Shuichi Kunori, K. A. Johns, Tong Hu, V. Vaniev, S. A. Jerger, A. Leflat, T. Mc Mahon, P. I. Goncharov, Suman Bala Beri, D. P. Stoker, W. G. Cobau, M. I. Martin, C. Miao, G. Wang, Alberto Santoro, H. Haggerty, Richard Breedon, D. Toback, J. Mc Donald, T. Joffe-Minor, Wagner Carvalho, H. E. Fisk, Philip Baringer, Z. Zhou, J. Solomon, R. J. Genik, S. Banerjee, M. Fortner, N. W. Reay, J. Perkins, M. Abolins, P. Mooney, N. K. Mondal, H. T. Diehl, H. Singh, J. Krane, A. Boehnlein, J. Ellison, A. K.A. Maciel, Emanuela Barberis, S. Fuess, L. T. Goss, R. D. Schamberger, N. Amos, P. Yamin, S. Mani, R. Madden, Peter W. Draper, and G. Eppley

Subjects
Physics, Quark, Particle physics, Muon, High Energy Physics::Phenomenology, General Physics and Astronomy, Charm quark, Massless particle, Particle decay, Pair production, High Energy Physics::Experiment, Leptoquark, Nuclear Experiment, Lepton
Abstract

We report on a search for second generation leptoquarks (LQ) produced in p (p) over bar collisions at root s = 1.8 TeV using the DO detector at Fermilab. Second generation leptoquarks are assumed to be produced in pairs and to decay to either mu. or nu and either a strange or a charm quark (q). Limits an placed on sigma(p (p) over bar --> LQ --> mu nu + jets) as a function of the mass of the leptoquark. For equal branching ratios to mu q and nu q, second generation scalar leptoquarks with a mass below 160 GeV/c(2), vector leptoquarks with anomalous minimal vector couplings with a mass below 240 GeV/c(2), and vector leptoquarks with Yang-Mills couplings with a mass below 290 GeV/c(2), are excluded at the 95% confidence level.

Published
1999

41. Dijet Mass Spectrum and a Search for Quark Compositeness inp¯pCollisions at√s=1.8TeV

Author

S. M. Chang, Robert Hirosky, P. Bloom, J. A. Wightman, N. I. Bojko, W. Y. Chen, M. H.G. Souza, P. Yepes, R. Piegaia, M. I. Martin, Dhiman Chakraborty, V. S. Narasimham, I. Adam, P. Rubinov, Vasken Hagopian, H. Weerts, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, S.H. Ahn, P. Padley, Alexey Volkov, R. K. Shivpuri, Lev Dudko, A. A. Mayorov, U. Heintz, M. K. Fatyga, K. W. Merritt, James H Cochran, Mitchell Wayne, S. Rajagopalan, V. Manankov, R. Raja, A. S. Ito, N. Parua, V.V. Abramov, H. Schellman, J. M. Kohli, Stephan Linn, N. Oshima, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. T. Linnemann, Arnaud Lucotte, K. Yip, V. A. Bezzubov, H. Jöstlein, R. D. Schamberger, M. Narain, G. Eppley, R. P. Smith, B. Baldin, R. Jesik, A. Brandt, J. Thompson, Michael Shupe, M. Bhattacharjee, T. G. Trippe, H. da Motta, S. Protopopescu, Sharon Hagopian, A. K.A. Maciel, J. Snow, Randy Ruchti, W. E. Cooper, A.S. Dyshkant, E. Oltman, D. Zieminska, S. Fuess, Z. H. Zhu, J. H. Christenson, M. Mostafa, M. Diesburg, M. Peters, A. Zylberstejn, P. Mooney, K. Gounder, C. Klopfenstein, S. Grinstein, K. M. Mauritz, M. Abolins, Gordon Watts, V. Sirotenko, S. Grünendahl, Shashikant Dugad, O. V. Eroshin, E. Smith, C. S. Mishra, B. Lauer, P.F. Ermolov, Phillip Gutierrez, T. McKibben, J. Yu, S. Hansen, F. Stichelbaut, B. Zhang, L. Magaña-Mendoza, M. A.C. Cummings, J. Jaques, Kaushik De, J. T. White, A. V. Kotwal, D. Stewart, Harrison Prosper, S. N. Gurzhiev, Ron Lipton, N. K. Mondal, H. T. Diehl, V. S. Burtovoi, M. L. Stevenson, T. Joffe-Minor, S. Youssef, S. Choi, M. Merkin, M. Demarteau, H. Singh, Andrew White, Brad Abbott, C. Murphy, G. Guglielmo, A. Sanchez-Hernandez, R. Astur, J. Womersley, Heriberto Castilla-Valdez, J. Warchol, A. L. Lyon, P. Z. Quintas, Alexander Vorobiev, S. P. Denisov, P. Grudberg, Robert Kehoe, K. Del Signore, Matthew Jones, T. Heuring, E. G. Zverev, M. R. Krishnaswamy, J. Ellison, D. Karmanov, A. Bross, Raymond Brock, Boaz Klima, Elizabeth Gallas, Q. Z. Li-Demarteau, Eunil Won, F. Hsieh, A. R. Clark, Shuichi Kunori, R. Hernández-Montoya, Hiroaki Aihara, L. Sawyer, P. C. Bhat, F. Lobkowicz, G. E. Forden, A. P. Heinson, Y. Fisyak, Y. Ducros, N. Sotnikova, Sergey Chekulaev, R. J. Madaras, J. V. D. Wirjawan, D. Norman, T. McMahon, E. W. Anderson, Z. Zhou, J. Solomon, R. L. McCarthy, T. Marshall, P. M. Tuts, D. Buchholz, Edilamar Menezes de Oliveira, C. K. Jung, V. Stolin, D. Casey, A. Boehnlein, J. Krane, Brajesh C Choudhary, Y. Pischalnikov, Victor Daniel Elvira, K. A. Johns, V. Vaniev, K. Genser, L. Babukhadia, P. Tamburello, R. E. Hall, J. L. González Solís, M. Zielinski, R. W. Stephens, S. Feher, S. Willis, O. I. Dahl, B. Gibbard, H. D. Wahl, V. Oguri, A. Para, A. N. Galyaev, Z. Casilum, Winston Ko, N. Graf, T. Huehn, Joan A. Guida, D. Owen, John Hobbs, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, S. Mani, E. Flattum, K. Streets, Vipin Bhatnagar, Peter Nemethy, J. Tarazi, Heng Xu, Anna Goussiou, Y. Zhou, Allen Mincer, P. Yamin, P. Hanlet, S. Kahn, D. Fein, R. Partridge, M. M. Baarmand, Sarah Catherine Eno, L. Lueking, G. Di Loreto, R. Madden, S. Krzywdzinski, F. Borcherding, A. Narayanan, M. Chung, B. Hoeneisen, H. E. Fisk, D. Denisov, H. Haggerty, Gregory R Snow, Young-Sang Yu, Erich Varnes, Z. Wu, Ting Hu, Peter W. Draper, F. Nang, G. Finocchiaro, M. L. Kelly, J. Sculli, M. Sosebee, A. L. Spadafora, L. P. Chen, P. I. Goncharov, Daniel R Claes, Daniel John Karmgard, H. S. Mao, A. Zieminski, K. C. Frame, D. Lincoln, J. Bantly, C. Miao, M. Tartaglia, T. Fahland, D. L. Adams, Nikos Varelas, V. N. Evdokimov, K. S. Hahn, A. V. Kostritskiy, D. Cutts, O. Ramirez, Alexander Belyaev, Thomas Ferbel, P. Gartung, J. G. R. Lima, J. F. Bartlett, H. Gordon, S. Reucroft, Greg Landsberg, Stephen Wimpenny, V. Gavrilov, L. T. Goss, S. Y. Jun, D. A. Stoyanova, T. L.T. Thomas, R. Engelmann, Jing Li, G. Wang, T. L. Geld, Alberto Santoro, E. A. Kozlovsky, H.E. Miettinen, G. Kalbfleisch, M. Paterno, Seong Keun Kim, Gervasio Gomez, L. Coney, B. Pawlik, D. R. Green, J. M. Hauptman, Cecilia Elena Gerber, Darien Wood, A. Baden, G. C. Blazey, Nicholas John Hadley, V. V. Babintsev, R. Yamada, H. L. Melanson, S. Kuleshov, C. Shaffer, D. Cullen-Vidal, N. N. Biswas, Jianming Qian, S. Blessing, S. Chopra, Scott Snyder, R. Markeloff, F. Landry, John Rutherfoord, Tong Hu, J. Kotcher, G. Steinbrück, Mary Beth Adams, M. Roco, J. M. Guida, D. Hedin, B. May, B. Gobbi, Anurag Gupta, Jasvinder A. Singh, D. Koltick, T. Yasuda, B. G. Pope, Michael A. Strauss, Elizaveta Shabalina, G. Gutierrez, S. A. Jerger, A. Leflat, H. E. Montgomery, W. G. Cobau, C. Boswell, J. P. Negret, J. McDonald, Philip Baringer, S. Banerjee, V. Balamurali, B. Gómez, Suman Bala Beri, Marvin Johnson, A. V. Kozelov, C. Cretsinger, Richard Breedon, M. Strovink, E. James, H. Greenlee, Gilvan Alves, J. McKinley, Y. M. Park, Wagner Carvalho, S. C. Loken, D. P. Stoker, D. Vititoe, R. J. Genik, A. Jonckheere, D. Edmunds, N. Amos, Andre Sznajder, Yuri Gershtein, Emanuela Barberis, L. Oesch, N. Mokhov, M. Fortner, J. Perkins, C. Yoshikawa, and R. Snihur

Subjects
Physics, Quark, Quantum chromodynamics, Particle physics, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Jet (particle physics), law.invention, law, Pseudorapidity, Mass spectrum, High Energy Physics::Experiment, Fermilab, Collider
Abstract

Using the DZero detector at the 1.8 TeV pbarp Fermilab Tevatron collider, we have measured the inclusive dijet mass spectrum in the central pseudorapidity region |eta_jet| < 1.0 for dijet masses greater than 200 Gev/c^2. We have also measured the ratio of spectra sigma(|eta_jet| < 0.5)/sigma(0.5 < |eta_jet| < 1.0). The order alpha_s^3 QCD predictions are in good agreement with the data and we rule out models of quark compositeness with a contact interaction scale < 2.4 TeV at the 95% confidence level.

Published
1999

42. Small AngleJ/ψProduction inpp¯Collisions at√s=1.8TeV

Author

H. A. Neal, Robert Hirosky, H. C. Shankar, K. Yip, C. K. Jung, W. Y. Chen, G. Gutierrez, M. Zielinski, A. N. Galyaev, Jinhong Yu, Gilvan Alves, A.S. Dyshkant, George R. Kalbfleisch, V. S. Narasimham, Thomas G Trippe, Meenakshi Narain, Michael A. Strauss, R. Jesik, W. E. Cooper, A. A. Mayorov, Pushpalatha C Bhat, I. Adam, P. Rubinov, Andrew White, D. Stewart, S. N. Gurzhiev, M. K. Fatyga, G. Steinbrück, J. Snow, Viatcheslav Stolin, P. Bloom, J. A. Wightman, K. W. Merritt, P. Grudberg, Q. Z. Li Demarteau, A. L. Spadafora, J. F. Bartlett, V. Manankov, C. Murphy, R. Astur, T. Heuring, C. Boswell, Suman Bala Beri, A. Narayanan, D. Green, A. Baden, G. C. Blazey, R. Yamada, K. Gounder, B. Lauer, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, R. Snihur, Emanuela Barberis, L. Lueking, H. L. Melanson, P. Z. Quintas, J. V.D. Wirjawan, Joan A. Guida, G. Di Loreto, D. Denisov, S. A. Jerger, Srinivasan Rajagopalan, Thomas Ferbel, N. I. Bojko, M. H.G. Souza, P. Yepes, H. E. Montgomery, John Hobbs, S. K. Kim, A. Leflat, M. Sosebee, H. D. Wahl, S. M. Chang, S. H. Ahn, R. K. Shivpuri, M. Chung, K. Del Signore, W. G. Cobau, M. I. Martin, J. H. Christenson, Winston Ko, D. R. Claes, M. R. Adams, Young-Sang Yu, C. Cretsinger, M. Strovink, E. James, Orin I. Dahl, F. Landry, John Rutherfoord, L. Magaña-Mendoza, J. Bantly, J. M. Hauptman, Cecilia Elena Gerber, Y. M. Park, S.A. Kahn, D. Edmunds, L. T. Goss, Philip Baringer, Hiroaki Aihara, K. M. Mauritz, J. Jaques, Andre Sznajder, M. L. Stevenson, T. Fahland, M. Tartaglia, P.F. Ermolov, V. S. Burtovoi, Andrew Brandt, R. Engelmann, Liu Chen, E. A. Kozlovsky, M. D. Peters, H.E. Miettinen, M. Bhattacharjee, Kaushik De, V. A. Bezzubov, M. Demarteau, J. P. Negret, R. P. Smith, J. Mc Kinley, J. Womersley, Z. Wu, Dhiman Chakraborty, Michael Shupe, L. Oesch, D. Karmanov, V. V. Babintsev, Jianming Qian, F. Borcherding, S. Banerjee, V. Balamurali, B. G. Pope, E. Flattum, Raymond Brock, Boaz Klima, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, Vladimir Gavrilov, E. G. Zverev, F. Stichelbaut, J. L. González-Solís, P. Gartung, A. Jonckheere, Peter Nemethy, Brajesh C Choudhary, M. Roco, Richard Breedon, A. P. Vorobiev, Stephan Linn, Elizaveta Shabalina, Gordon Watts, V. Oguri, E. Oltman, V. Sirotenko, D. Norman, E. Smith, O. V. Eroshin, P. I. Goncharov, Y. Fisyak, R. Mc Carthy, G. Eppley, N. Oshima, H. da Motta, S. Willis, Miguel Mostafa, M. M. Baarmand, B. Pawlik, Sarah Catherine Eno, J. T. White, Marvin Johnson, P. Hanlet, Heriberto Castilla-Valdez, D. Buchholz, Phillip Gutierrez, Daria Zieminska, J. G.R. Lima, B. Gibbard, B. S. Acharya, A. V. Kozelov, Wagner Carvalho, C. Klopfenstein, S. Youssef, Tong Hu, F. Nang, J. Sculli, Edilamar Menezes de Oliveira, D. Casey, P. Tamburello, A. S. Ito, J. Kotcher, S. Choi, Richard B. Lipton, Sharon Hagopian, D. Vititoe, J. Warchol, A. K.A. Maciel, G. Finocchiaro, R. J. Genik, C. Miao, C. S. Mishra, Heng Xu, A. Sanchez-Hernandez, Anna Goussiou, Nikos Varelas, A. V. Kotwal, Harrison Prosper, Robert Kehoe, K. Genser, K. S. Hahn, D. Cutts, Stephen Wimpenny, T. Mc Mahon, A. R. Clark, G. Guglielmo, Gregory R Snow, Greg Landsberg, P. Yamin, D. P. Stoker, Elizabeth Gallas, R. Piegaia, R. Hernández-Montoya, H. Jostlein, T. Marshall, N. Graf, K. Streets, Vipin Bhatnagar, Vasken Hagopian, H. Weerts, Darien Wood, T. L. Geld, N. Sotnikova, J. Krane, S. Mani, Rajendran Raja, Nicholas John Hadley, S. P. Denisov, Lev Dudko, S. Blessing, Scott Snyder, Eunil Won, M. Paterno, M. R. Krishnaswamy, R. Markeloff, F. Lobkowicz, S. C. Loken, R. Partridge, M. Abolins, F. Hsieh, R. Madden, N. Parua, V.V. Abramov, S. Reucroft, B. Baldin, Matthew Jones, A. Para, Sergey Chekulaev, Brad Abbott, Y. Ducros, C. Yoshikawa, J. B. Singh, Peter W. Draper, T. Rockwell, Iain Alexander Bertram, L. Babukhadia, Arnaud Lucotte, H. S. Mao, G. Wang, Alberto Santoro, Sergey Kuleshov, H. Haggerty, T. Mc Kibben, Victor Daniel Elvira, J. Mc Donald, T. Joffe-Minor, D. L. Adams, Randy Ruchti, Michael Rijssenbeek, H. E. Fisk, V. N. Evdokimov, D.S. Koltick, J. T. Linnemann, S. R. Dugad, P. Mooney, N. K. Mondal, H. T. Diehl, H. Singh, A. Boehnlein, M. Fortner, J. Perkins, R. D. Schamberger, S. Feher, Ting Hu, A. Zieminski, J. Ellison, S. Fuess, Y. Gershtein, A. V. Kostritskiy, M. Merkin, Sissel Hansen, A. L. Lyon, Shuichi Kunori, Z. Zhou, J. Solomon, K. A. Johns, L. Coney, V. Vaniev, D. A. Stoyanova, N. Amos, Gervasio Gomez, R. J. Madaras, E. W. Anderson, S. Y. Jun, T. L.T. Thomas, Allen Mincer, Sebastian Grinstein, P. Padley, Alexey Volkov, C. Shaffer, D. Cullen-Vidal, James H Cochran, N. N. Biswas, Mitchell Wayne, H. Schellman, J. M. Kohli, Stefan Grünendahl, J. Thompson, S. Chopra, B. Gómez, Z. H. Zhu, J. M. Guida, D. Hedin, Alexander Belyaev, Y. Pischalnikov, Ulrich Heintz, P. M. Tuts, R. W. Stephens, M. Diesburg, B. May, D. Owen, B. Gobbi, Anurag Gupta, J. Tarazi, T. Yasuda, T. Huehn, D. Fein, Don Lincoln, Erich Varnes, Daniel John Karmgard, Jing Li, N.V. Mokhov, Y. H. Zhou, G. E. Forden, A. P. Heinson, B. Zhang, R. E. Hall, Z. Casilum, S. Krzywdzinski, A. Zylberstejn, H. Greenlee, A. Bross, Serban Protopopescu, M. L. Kelly, Howard Gordon, K. C. Frame, and O. Ramirez

Subjects
Physics, Particle physics, Detector, Tevatron, Theoretical models, General Physics and Astronomy, law.invention, Nuclear physics, Cross section (physics), Transverse plane, law, Pseudorapidity, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Collider
Abstract

This paper presents the first measurement of the inclusive J/Psi production cross section in the forward pseudorapidity region 2.5

Published
1999

43. Search for Squarks and Gluinos in Single-Photon Events with Jets and Large Missing Transverse Energy inpp¯Collisions at√s=1.8TeV

Author

J. M. Hauptman, E. Flattum, Cecilia Elena Gerber, R. Snihur, L. Lueking, V. V. Babintsev, B. G. Pope, Jianming Qian, Y. Pischalnikov, Ulrich Heintz, K. Del Signore, E. Smith, S. M. Chang, R. Hernández-Montoya, N. Sotnikova, J. Krane, M. Diesburg, C. S. Mishra, Tong Hu, Elizaveta Shabalina, Hiroaki Aihara, G. Eppley, D. Owen, T. Mc Mahon, J. Tarazi, P. M. Tuts, R. W. Stephens, A. V. Kostritskiy, Alexander Belyaev, H. da Motta, D. A. Stoyanova, L. Magaña-Mendoza, Sissel Hansen, J. G.R. Lima, J. Jaques, J. T. White, Meenakshi Narain, Gervasio Gomez, C. Shaffer, D. Cullen-Vidal, N. N. Biswas, G. Wang, Alberto Santoro, L. Coney, S. A. Jerger, Andrew White, Robert Hirosky, A. Leflat, S. Chopra, H. D. Wahl, H. Haggerty, A. S. Ito, Winston Ko, K. S. Hahn, G. Guglielmo, D. Cutts, J. Mc Donald, W. G. Cobau, M. I. Martin, D. Green, B. Gibbard, W. Y. Chen, G. Gutierrez, Gilvan Alves, T. Joffe-Minor, A. Narayanan, George R. Kalbfleisch, H. E. Fisk, P. Yamin, Richard Breedon, V. S. Narasimham, Dhiman Chakraborty, H. L. Melanson, P. Z. Quintas, J. Mc Kinley, J. Sculli, Raymond Brock, C. Cretsinger, Philip Baringer, Z. Zhou, J. Solomon, Vasken Hagopian, M. Strovink, E. James, P. Padley, Alexey Volkov, N.V. Mokhov, C. Murphy, R. Astur, S. Banerjee, J. Womersley, Boaz Klima, John Hobbs, James H Cochran, V. Balamurali, Nikos Varelas, M. Sosebee, P. Gartung, Y. H. Zhou, S. K. Kim, A. A. Mayorov, Mitchell Wayne, H. Schellman, J. M. Kohli, Greg Landsberg, F. Stichelbaut, V. A. Bezzubov, T. Heuring, M. K. Fatyga, G. Steinbrück, R. K. Shivpuri, M. R. Adams, Young-Sang Yu, H. Weerts, J. H. Christenson, S. Mani, D. Norman, J. Bantly, J. Snow, D. R. Claes, Stefan Grünendahl, J. Thompson, B. S. Acharya, C. K. Jung, G. E. Forden, A. P. Heinson, M. H.G. Souza, J. P. Negret, R. P. Smith, B. Gómez, V. Oguri, T. L. Geld, T. G. Trippe, S. Willis, R. Madden, M. Bhattacharjee, M. Tartaglia, B. Zhang, D. Stewart, Z. H. Zhu, M. Paterno, Lev Dudko, S. N. Gurzhiev, R. Jesik, Sharon Hagopian, Kaushik De, P. Yepes, H. E. Montgomery, Michael Shupe, Peter W. Draper, Andrew Brandt, A. K.A. Maciel, Wagner Carvalho, R. Engelmann, K. Streets, A. N. Galyaev, Vipin Bhatnagar, E. Oltman, M. L. Stevenson, E. A. Kozlovsky, R. Partridge, H.E. Miettinen, K. Genser, Pushpalatha C Bhat, F. Borcherding, Peter Nemethy, M. Roco, K. Gounder, Rajendran Raja, B. Lauer, Y. Fisyak, R. Mc Carthy, Stephen Wimpenny, W. E. Cooper, L. P. Chen, N. Parua, V.V. Abramov, D. Karmanov, E. W. Anderson, Marvin Johnson, M. A.C. Cummings, T. Marshall, R. Piegaia, Viatcheslav Stolin, K. M. Mauritz, Brad Abbott, J. Warchol, Heriberto Castilla-Valdez, Matthew Jones, H. S. Mao, R. E. Hall, D. L. Adams, J. L. González Solís, B. May, A. V. Kozelov, Miguel Mostafa, M. M. Baarmand, P.F. Ermolov, Darien Wood, A. V. Kotwal, B. Hoeneisen, Lee Sawyer, Sarah Catherine Eno, Harrison Prosper, Allen Mincer, Nicholas John Hadley, Z. Casilum, V. S. Burtovoi, Arnaud Lucotte, Sebastian Grinstein, S. Feher, B. Gobbi, E. G. Zverev, S. Blessing, Ting Hu, F. Nang, Richard B. Lipton, A. Baden, Scott Snyder, Anurag Gupta, B. Pawlik, G. C. Blazey, Brajesh C Choudhary, D. P. Stoker, A. Zieminski, D. Vititoe, R. Yamada, R. Markeloff, R. J. Genik, Randy Ruchti, D. Casey, T. Yasuda, Y. M. Park, S. H. Ahn, T. Huehn, J. Kotcher, R. J. Madaras, S.A. Kahn, H. A. Neal, H. C. Shankar, D. Buchholz, Edilamar Menezes de Oliveira, O. I. Dahl, J. V.D. Wirjawan, S. Y. Jun, T. L.T. Thomas, Michael A. Strauss, D. Fein, M. Demarteau, K. Yip, N. Graf, P. Tamburello, Heng Xu, Z. Wu, Vladimir Gavrilov, Anna Goussiou, Gordon Watts, M. Zielinski, J. M. Guida, D. Hedin, Jinhong Yu, V. Sirotenko, O. V. Eroshin, Phillip Gutierrez, Elizabeth Gallas, Gregory R Snow, H. Jostlein, A.S. Dyshkant, Joan A. Guida, P. Hanlet, F. Lobkowicz, G. Di Loreto, T. Rockwell, Iain Alexander Bertram, D. Denisov, Michael Rijssenbeek, C. Boswell, A. Jonckheere, Don Lincoln, Srinivasan Rajagopalan, Erich Varnes, Thomas Ferbel, V. N. Evdokimov, A. P. Vorobiev, D.S. Koltick, J. T. Linnemann, Stephan Linn, L. Babukhadia, M. Chung, N. Oshima, Daria Zieminska, Daniel John Karmgard, Emanuela Barberis, G. Finocchiaro, Suman Bala Beri, L. T. Goss, Jing Li, S. Krzywdzinski, D. Edmunds, A. Zylberstejn, Andre Sznajder, Yuri Gershtein, P. Bloom, H. Greenlee, J. A. Wightman, M. D. Peters, A. Bross, L. Oesch, Serban Protopopescu, N. I. Bojko, S. Reucroft, M. Fortner, J. Perkins, M. Merkin, M. Abolins, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, C. Yoshikawa, H. Piekarz, R. D. Schamberger, P. Mooney, S. C. Loken, B. Baldin, Y. Ducros, J. B. Singh, N. K. Mondal, H. T. Diehl, H. Singh, Sergey Kuleshov, N. Amos, T. Mc Kibben, Victor Daniel Elvira, A. Boehnlein, S. Youssef, S. Choi, A. Sanchez-Hernandez, Robert Kehoe, J. Ellison, Eunil Won, S. Fuess, A. L. Lyon, A. L. Spadafora, Shuichi Kunori, P. I. Goncharov, K. A. Johns, V. Vaniev, C. Miao, S. R. Dugad, M. L. Kelly, Howard Gordon, K. C. Frame, O. Ramirez, S. P. Denisov, P. Grudberg, M. R. Krishnaswamy, F. Hsieh, A. R. Clark, A. Para, Sergey Chekulaev, I. Adam, P. Rubinov, K. W. Merritt, Q. Z. Li Demarteau, J. F. Bartlett, V. Manankov, F. Landry, John Rutherfoord, C. Klopfenstein, and T. Fahland

Subjects
Physics, Particle physics, Branching fraction, Physics beyond the Standard Model, High Energy Physics::Phenomenology, General Physics and Astronomy, Elementary particle, Supersymmetry, Standard Model, Nuclear physics, High Energy Physics::Experiment, Production (computer science), Energy (signal processing), Minimal Supersymmetric Standard Model
Abstract

We search for new physics using events with one high transverse energy photon, two or more jets, and an apparent imbalance in transverse energy, in p{ovr p} collisions at the Fermilab Tevatron at {radical} (s) =1.8 TeV . Such events are predicted for production of supersymmetric particles in some models. No excess is observed beyond expected background. For the parameter space of the minimal supersymmetric standard model with branching fraction B({tilde {chi}}{sup 0}{sub 2}{r_arrow}{gamma}thinsp{tilde {chi}}{sup 0}{sub 1})=1 and m{sub {tilde {chi}}{sup 0}{sub 2 }}{minus}m{sub {tilde {chi}}{sup 0}{sub 1}}{gt}20 GeV , we obtain a 95{percent} confidence level lower mass limit of 310thinspthinspGeV for equal mass squarks and gluinos. The results are also interpreted in models with low energy gauge mediated supersymmetry breaking. {copyright} {ital 1998} {ital The American Physical Society }

Published
1999

44. Search forCharge−1/3Third-Generation Leptoquarks inpp¯Collisions ats=1.8TeV

Author

C. Klopfenstein, B. May, T. Huehn, A. Jonckheere, B. Gobbi, Y. Fisyak, D. Fein, H. E. Fisk, Robert Hirosky, Jasvinder A. Singh, D. Edmunds, M. Sosebee, S. C. Loken, Erich Varnes, T. Yasuda, M. Demarteau, R. Astur, T. Heuring, Marvin Johnson, Daniel John Karmgard, H. L. Melanson, R. Hernández-Montoya, A. V. Kozelov, B. Baldin, Bobby Samir Acharya, Andre Sznajder, H. A. Neal, K. S. Hahn, T. McMahon, H. C. Shankar, S. A. Jerger, D. Lincoln, R. Snihur, M. D. Peters, M. Abolins, T. McKibben, N. Sotnikova, J. Krane, J. T. Linnemann, Stephen Wimpenny, J. Bantly, A. Leflat, H. E. Montgomery, P. Mooney, Andrew White, L. Oesch, I. Adam, P. Rubinov, Greg Landsberg, M. Narain, W. G. Cobau, T. Marshall, W. Y. Chen, Gilvan Alves, L. Magaña-Mendoza, T. Joffe-Minor, Yu. Pischalnikov, George R. Kalbfleisch, M. Merkin, J. S. Kang, V. S. Narasimham, Jing Li, P. C. Bhat, S. M. Chang, R. Engelmann, N. K. Mondal, H. T. Diehl, H. Singh, P. Padley, Alexey Volkov, K. W. Merritt, James H Cochran, T. L. Geld, J. V.D. Wirjawan, D. R. Green, Darien Wood, C. Boswell, J. McDonald, E. A. Kozlovsky, Joan A. Guida, H.E. Miettinen, M. Paterno, J. Kourlas, A. Brandt, N. Amos, H. D. Wahl, Mitchell Wayne, R. J. Madras, H. Schellman, J. M. Kohli, V. Manankov, A. A. Mayorov, U. Heintz, A. Bross, Raymond Brock, Nicholas John Hadley, Boaz Klima, C. Yoshikawa, A. Baden, Z. Zhou, J. Solomon, J. Ellison, S. Youssef, S. Choi, G. Di Loreto, Suman Bala Beri, C. Cretsinger, H. Castilla-Valdez, Yanwen Liu, M. K. Fatyga, Emanuela Barberis, G. C. Blazey, J. Thompson, Vasken Hagopian, John Hobbs, J. Z.Y. Jiang, J. Snow, M. Chung, K. Gounder, N. Mokhov, S. Blessing, Scott Snyder, M. R. Adams, Elizabeth Gallas, L. T. Goss, A. Sanchez-Hernandez, R. Markeloff, M. Strovink, E. James, M. D. Jones, M. Strauss, D. Norman, B. Gómez, Z. H. Zhu, G. E. Forden, A. P. Heinson, S. Banerjee, H. Weerts, W. Smart, V. Balamurali, R. E. Hall, J. L. González Solís, Z. Casilum, Lev Dudko, Shashikant Dugad, Brad Abbott, Robert Kehoe, A. Gupta, Peter Nemethy, A. L. Spadafora, S. Proptopopescu, P. I. Goncharov, C. S. Mishra, S. Willis, A. Para, E. G. Zverev, A. N. Galyaev, B. Lauer, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, Dhiman Chakraborty, M. Bhattacharjee, M. Tartaglia, H. Greenlee, A. S. Ito, S. Glenn, Srinivasan Rajagopalan, Thomas Ferbel, J. Yu, J. McKinley, R. Jesik, F. Landry, John Rutherfoord, K. A. Johns, Q. Z. Li-Demarteau, L. Babukhadia, D. Buchholz, D. Cutts, Edilamar Menezes de Oliveira, N. Parua, K. Del Signore, Wagner Carvalho, P. Z. Quintas, Alexander Vorobiev, Young-Sang Yu, Eunil Won, Haifeng Li, T. G. Trippe, C. T. Murphy, A. V. Kostritskiy, D. Stewart, S. N. Gurzhiev, S. Hansen, F. Stichelbaut, J. Jaques, Ting Hu, Hiroaki Aihara, S. Lökös, V. Oguri, A. Zylberstejn, G. Eppley, Ron Lipton, B. Gibbard, Sharon Hagopian, J. Sculli, A. K.A. Maciel, L. P. Chen, Daniel R Claes, P. Tamburello, L. Coney, D. Vititoe, M. L. Stevenson, A. Zieminski, Y. Ducros, P. M. Tuts, R. J. Genik, C. K. Jung, H. da Motta, J. G.R. Lima, R. W. Stephens, S. Feher, S. Fuess, M. L. Kelly, J. Yang, W. E. Cooper, E. Oltman, E. Flattum, S. Krzywdzinski, J. Womersley, J. Warchol, A. Narayanan, Howard Gordon, P. Hanlet, Y. M. Park, K. C. Frame, F. Borcherding, D. Denisov, J. M. Hauptman, Cecilia Elena Gerber, J. F. Bartlett, Heng Xu, Anna Goussiou, O. Ramirez, P. Gartung, Viatcheslav Stolin, Nikos Varelas, R. K. Shivpuri, J. Balderston, S.A. Kahn, G. Finocchiaro, S. Y. Jun, B. G. Pope, Alexander Belyaev, Y. Gershtein, T. L.T. Thomas, G. Guglielmo, Sergey Kuleshov, R. Piegaia, J. H. Christenson, M. Fortner, A. Boehnlein, J. Perkins, S. P. Denisov, P. Grudberg, Randy Ruchti, D. Karmanov, E. W. Anderson, L. Lueking, Victor Daniel Elvira, M. M. Baarmand, Sarah Catherine Eno, M. R. Krishnaswamy, Kaushik De, Jianming Qian, F. Hsieh, P. Bloom, J. A. Wightman, R. McCarthy, F. Nang, N. I. Bojko, A. R. Clark, C. L. Kim, D. P. Stoker, Elizaveta Shabalina, Brajesh C Choudhary, Gregory R Snow, Allen Mincer, Sebastian Grinstein, Sergey Chekulaev, H. Haggerty, Vladimir Gavrilov, S. Reucroft, Gordon Watts, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, Tong Hu, H. Piekarz, S.H. Ahn, G. Gutierrez, M. Diesburg, V. Sirotenko, S. Grünendahl, K. Genser, O. V. Eroshin, H. S. Mao, Phillip Gutierrez, G. Wang, Alberto Santoro, Seong Keun Kim, M. H.G. Souza, P. Yepes, A. L. Lyon, Shuichi Kunori, D. Owen, K. M. Mauritz, P.F. Ermolov, V. S. Burtovoi, J. T. White, J. Tarazi, D. A. Stoyanova, Gervasio Gomez, C. Shaffer, D. Cullen-Vidal, A. Goldschmidt, N. N. Biswas, R. Raja, Stephan Linn, S. Chopra, N. Oshima, Daria Zieminska, R. D. Schamberger, J. M. Guida, D. Hedin, F. Lobkowicz, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, V. N. Evdokimov, D.S. Koltick, V. A. Bezzubov, J. P. Negret, H. Jöstlein, R. P. Smith, Michael Shupe, P. Yamin, K. Streets, Vipin Bhatnagar, R. Partridge, A. V. Kotwal, Harrison Prosper, D. L. Adams, S. Mani, R. Madden, L. Rasmussen, B. Pawlik, Peter W. Draper, Georg Steinbrück, T. Fahland, D. Casey, R. Yamada, J. Kotcher, E. Smith, M. Roco, O. I. Dahl, N. Graf, and M. I. Martin

Subjects
Physics, Particle physics, Pair production, Branching fraction, Tau neutrino, High Energy Physics::Phenomenology, General Physics and Astronomy, High Energy Physics::Experiment, Leptoquark, Charge (physics), Elementary particle, Coupling (probability), Lepton
Abstract

We report on a search for $\mathrm{charge}\ensuremath{-}1/3$ third-generation leptoquarks (LQ) produced in $p\overline{p}$ collisions at $\ensuremath{\surd}s\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ using the $\mathrm{D}0$ detector at Fermilab. Third-generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a $b$ quark with branching fraction $B$. We place upper limits on $\ensuremath{\sigma}(p\overline{p}\ensuremath{\rightarrow}\mathrm{LQ}\overline{\mathrm{LQ}}){B}^{2}$ as a function of the leptoquark mass ${M}_{\mathrm{LQ}}$. Assuming $B\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$, we exclude at the 95% confidence level third-generation scalar leptoquarks with ${M}_{\mathrm{LQ}}l94\mathrm{GeV}{/c}^{2}$, and third-generation vector leptoquarks with ${M}_{\mathrm{LQ}}l216\mathrm{GeV}{/c}^{2}({M}_{\mathrm{LQ}}l148\mathrm{GeV}{/c}^{2}$) assuming Yang-Mills (anomalous) coupling.

Published
1998

45. Measurement of the Shape of the Transverse Momentum Distribution ofWBosons Produced inpp¯Collisions at√s=1.8TeV

Author

A. Brandt, T. Joffe-Minor, M. I. Martin, S. A. Jerger, Z. Zhou, J. Solomon, Joan A. Guida, G. E. Forden, A. P. Heinson, A. Leflat, H. E. Montgomery, G. Di Loreto, E. Flattum, S. Krzywdzinski, W. G. Cobau, M. D. Jones, J. Snow, R. E. Hall, J. L. González Solís, J. M. Hauptman, Cecilia Elena Gerber, Z. Casilum, Jianming Qian, Srinivasan Rajagopalan, Thomas Ferbel, Heriberto Castilla-Valdez, L. T. Goss, G. Wang, Alberto Santoro, J. G.R. Lima, G. Kalbfleisch, Seong Keun Kim, Tong Hu, B. Baldin, J. McDonald, E. G. Zverev, H. D. Wahl, B. May, M. Chung, B. Hoeneisen, J. Yang, R. Snihur, D. Owen, K. Streets, V. A. Bezzubov, J. P. Negret, H. Jöstlein, R. P. Smith, Robert Hirosky, M. Tartaglia, Vipin Bhatnagar, M. Diesburg, Haifeng Li, S. M. Chang, B. Gobbi, R. Partridge, Anurag Gupta, S. Banerjee, J. Tarazi, A. Zylberstejn, M. Fortner, J. Perkins, Andrew White, A. N. Galyaev, K. S. Hahn, D. Cutts, Greg Landsberg, Michael Shupe, P. Padley, Alexey Volkov, James H Cochran, Mitchell Wayne, P. Mooney, H. Schellman, J. M. Kohli, E. Smith, Elizabeth Gallas, C. Yoshikawa, A. Para, L. Sawyer, K. Genser, S. Grünendahl, W. Y. Chen, J. Kourlas, V. Balamurali, Gilvan Alves, Y. Ducros, D. Norman, J. Jaques, C. L. Kim, J. Thompson, Jasvinder A. Singh, D. Koltick, H. S. Mao, D. L. Adams, M. L. Kelly, D. Stewart, S. N. Gurzhiev, P. Yamin, John Hobbs, T. L. Geld, B. G. Pope, T. Yasuda, S. C. Loken, Z. H. Zhu, Ron Lipton, Vasken Hagopian, A. V. Kotwal, Howard Gordon, V. S. Narasimham, K. C. Frame, Young-Sang Yu, Harrison Prosper, M. Paterno, Serban Protopopescu, H. Weerts, S. Mani, A. Narayanan, O. Ramirez, J. Womersley, Shashikant Dugad, W. Smart, B. Gibbard, A. L. Lyon, Shuichi Kunori, Lev Dudko, C. Klopfenstein, R. Madden, D. Karmanov, M. Demarteau, L. P. Chen, Daniel R Claes, Ting Hu, L. Rasmussen, Elizaveta Shabalina, T. Fahland, T. Huehn, C. Murphy, M. Sosebee, Peter W. Draper, R. Astur, Alexander Belyaev, A. Zieminski, A. A. Mayorov, U. Heintz, T. Heuring, D. Fein, Dhiman Chakraborty, H. E. Fisk, A. S. Ito, Brajesh C Choudhary, D. Lincoln, A. V. Kostritskiy, J. Sculli, I. Adam, P. Rubinov, N. Amos, R. Yamada, G. Gutierrez, M. K. Fatyga, A. Boehnlein, R. Raja, Stephan Linn, J. Bantly, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, J. T. Linnemann, D. Casey, K. W. Merritt, Victor Daniel Elvira, L. Coney, T. McKibben, J. Yu, N. Oshima, Erich Varnes, P. Hanlet, M. Bhattacharjee, J. Kotcher, R. Hernández-Montoya, R. D. Schamberger, D. A. Stoyanova, V. Manankov, F. Borcherding, Yanwen Liu, J. F. Bartlett, V. Gavrilov, S. Kuleshov, M. M. Baarmand, D. Denisov, Daniel John Karmgard, S. Grinstein, J. M. Guida, D. Hedin, Sarah Catherine Eno, P. Bloom, J. A. Wightman, T. G. Trippe, G. Finocchiaro, L. Magaña-Mendoza, Nikos Varelas, S. Y. Jun, T. L.T. Thomas, G. Steinbrück, P. Z. Quintas, Alexander Vorobiev, R. K. Shivpuri, K. Gounder, C. S. Mishra, K. M. Mauritz, Emanuela Barberis, J. Z.Y. Jiang, N. Sotnikova, Gordon Watts, J. Krane, B. Lauer, M. A.C. Cummings, N. Mokhov, M. Merkin, M. Roco, N. I. Bojko, R. Engelmann, P.F. Ermolov, O. I. Dahl, V. Sirotenko, Gervasio Gomez, O. V. Eroshin, J. Balderston, F. Lobkowicz, F. Nang, Sharon Hagopian, A. K.A. Maciel, E. W. Anderson, E. A. Kozlovsky, A. Baden, H.E. Miettinen, H. L. Melanson, Phillip Gutierrez, S.A. Kahn, N. Graf, S. P. Denisov, P. Grudberg, P. Gartung, G. C. Blazey, W. E. Cooper, E. Oltman, S. Reucroft, Jing Li, P. C. Bhat, R. Jesik, A. Bross, Raymond Brock, Boaz Klima, C. Shaffer, D. Cullen-Vidal, T. Rockwell, Iain Alexander Bertram, A. Goldschmidt, M. R. Krishnaswamy, K. Del Signore, Brad Abbott, V. S. Burtovoi, J. T. White, N. N. Biswas, F. Hsieh, A. R. Clark, R. Piegaia, J. H. Christenson, D. Pušeljić, S. Chopra, Jian Kang, Allen Mincer, Michael Rijssenbeek, Sergey Chekulaev, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, F. Landry, John Rutherfoord, Hiroaki Aihara, N. Parua, H. Piekarz, S.H. Ahn, S. Lökös, S. Willis, Kaushik De, K. A. Johns, T. McMahon, Mary Beth Adams, L. Babukhadia, P. M. Tuts, H. Haggerty, S. Youssef, S. Choi, V. N. Evdokimov, R. W. Stephens, S. Feher, J. V. D. Wirjawan, G. Guglielmo, A. Sanchez-Hernandez, Robert Kehoe, V. Oguri, Stephen Wimpenny, Q. Z. Li-Demarteau, Eunil Won, B. Pawlik, D. R. Green, Darien Wood, Nicholas John Hadley, S. Blessing, Scott Snyder, R. Markeloff, S. Hansen, F. Stichelbaut, R. J. Madaras, D. Buchholz, M. L. Stevenson, Edilamar Menezes de Oliveira, Randy Ruchti, Y. Pischalnikov, J. Warchol, P. Tamburello, Heng Xu, Anna Goussiou, M. Narain, Gregory R Snow, M. H.G. Souza, P. Yepes, A. L. Spadafora, P. I. Goncharov, C. K. Jung, V. Stolin, L. Lueking, M. Abolins, N. K. Mondal, H. T. Diehl, H. Singh, J. Ellison, G. Eppley, H. da Motta, D. Zieminska, S. Fuess, Y. Fisyak, H. Greenlee, B. Gómez, S. Glenn, J. McKinley, Y. M. Park, Wagner Carvalho, R. L. McCarthy, Marvin Johnson, T. Marshall, D. Vititoe, R. J. Genik, A. V. Kozelov, Peter Nemethy, A. Jonckheere, D. Edmunds, Andre Sznajder, Yuri Gershtein, M. D. Peters, L. Oesch, D. P. Stoker, Michael A. Strauss, C. Boswell, Suman Bala Beri, C. Cretsinger, M. Strovink, and E. James

Subjects
Quantum chromodynamics, Physics, Particle physics, High Energy Physics::Phenomenology, General Physics and Astronomy, Elementary particle, Particle detector, Nuclear physics, High Energy Physics::Experiment, Fermilab, Perturbation theory (quantum mechanics), Resummation, Quantum field theory, Nuclear Experiment, Boson
Abstract

The shape of the transverse momentum distribution of W bosons (p_T(W)) produced in pbarp collisions at sqrt(s)= 1.8 TeV is measured with the DO detector at Fermilab. The result is compared to QCD perturbative and resummation calculations over the p_T(W) range from 0-200 GeV/c. The shape of the distribution is consistent with the theoretical prediction.

Published
1998

46. A Measurement of theWBoson Mass at the Fermilabpp¯Collider

Author

D. Cutts, G. Eppley, P. Padley, Alexey Volkov, Greg Landsberg, James H Cochran, J. G.R. Lima, N. Parua, Matthew Jones, Mitchell Wayne, A. S. Ito, H. Schellman, J. M. Kohli, Pm Tuts, C. Cretsinger, T. L. Geld, Natalie A. Roe, M. Strovink, D. Stewart, D. Buchholz, Edilamar Menezes de Oliveira, Stefan Grünendahl, E. James, R. L. McCarthy, R. K. Shivpuri, M. Tartaglia, Q. Z. Li-Demarteau, Peter Nemethy, M. Roco, J. Thompson, S. A. Jerger, T. Joffe-Minor, A. Leflat, Robert Hirosky, B. Gómez, Z. H. Zhu, M. Paterno, S. N. Gurzhiev, P. Tamburello, Heng Xu, Anna Goussiou, Kaushik De, Shashikant Dugad, Randy Ruchti, W. Y. Chen, W. G. Cobau, M. I. Martin, J. S. Kang, Gilvan Alves, J. McDonald, George R. Kalbfleisch, H. E. Fisk, A. Baden, G. C. Blazey, C. S. Mishra, V. S. Narasimham, G. Guglielmo, J. M. Guida, D. Hedin, A. A. Mayorov, J. Jaques, S. Glenn, J. McKinley, M. K. Fatyga, G. Steinbrück, Gregory R Snow, Vasken Hagopian, H. Weerts, Lev Dudko, D. A. Stoianova, Wagner Carvalho, S. Banerjee, J. Snow, S. H. Ahn, K. M. Mauritz, V. A. Bezzubov, E. W. Anderson, J. P. Negret, J. Solomon, P. Yamin, R. P. Smith, K. Streets, Vipin Bhatnagar, S. Fuess, F. Landry, John Rutherfoord, A. N. Galyaev, V. Balamurali, D. P. Stoker, T. McKibben, H. Aihara, S. Lami, P.F. Ermolov, B. Gibbard, E. G. Zverev, Michael Shupe, R. Partridge, Ron Lipton, Andrew White, T. McMahon, Y. E. Gutnikov, S. Mani, Mary Beth Adams, D. Vititoe, J. Womersley, Alexander Vorobiev, R. Jesik, R. J. Genik, J. Sculli, Allen Mincer, Michael A. Strauss, A. L. Spadafora, V. S. Burtovoi, Haifeng Li, R. Madden, C. Murphy, P. I. Goncharov, J. Kourlas, Sebastian Grinstein, John Hobbs, A. V. Kotwal, Harrison Prosper, Gordon Watts, C. L. Kim, V. Sirotenko, L. Rasmussen, R. Astur, Nikos Varelas, F. Borcherding, O. V. Eroshin, M. Bhattacharjee, C. Boswell, Peter W. Draper, Meenakshi Narain, A. V. Kostritskiy, Pushpalatha C Bhat, Joan A. Guida, W. E. Cooper, L. P. Chen, Daniel R Claes, I. Adam, P. Rubinov, Young-Sang Yu, Stephen Wimpenny, Phillip Gutierrez, Nikolai Mokhov, T. Heuring, R. J. Madaras, K. Gounder, J. M. Hauptman, Cecilia Elena Gerber, H. Da-Motta, T. G. Trippe, Sissel Hansen, L. Coney, Suman Bala Beri, T. Fahland, T. Marshall, B. Lauer, M. A.C. Cummings, G. P. Grim, R. W. Stephens, A. Narayanan, B. G. Pope, Darien Wood, D. Karmanov, K. W. Merritt, J. F. Bartlett, E. Flattum, Nicholas John Hadley, Marvin Johnson, M. M. Baarmand, Sarah Catherine Eno, S. Blessing, B. Hoeneisen, Lee Sawyer, Scott Snyder, H. S. Mao, D. Denisov, Jianming Qian, E. Smith, A. V. Kozelov, Sharon Hagopian, D. Edmunds, R. Markeloff, A. K.A. Maciel, V. Manankov, Elizaveta Shabalina, L. Magaña-Mendoza, M. Sosebee, Heriberto Castilla-Valdez, F. Lobkowicz, Srinivasan Rajagopalan, M. Merkin, J. T. White, Andre Sznajder, Dan Green, T. Rockwell, Iain Alexander Bertram, D. L. Adams, C. K. Jung, M. D. Peters, Yanwen Liu, E. Oltman, J. Bantly, L. Lueking, Brajesh C Choudhary, Vyacheslav Klyukhin, Michael Rijssenbeek, F. Nang, Raymond Brock, Boaz Klima, L. Oesch, B. May, Tong Hu, R. Piegaia, K. Bazizi, D. Norman, R. Snihur, Y. M. Park, M. Chung, S.A. Kahn, S. Willis, V. N. Evdokimov, Andrew Brandt, R. Engelmann, S. M. Chang, H.E. Miettinen, B. Gobbi, B. Pawlik, Bobby Samir Acharya, H. A. Neal, H. C. Shankar, D.S. Koltick, Anurag Gupta, Jinhong Yu, A. Klatchko, K. Del-Signore, T. Yasuda, J. Linnenmann, M. Demarteau, Dhiman Chakraborty, J. Kotcher, M. Abolins, O. I. Dahl, N. Graf, N. K. Mondal, H. T. Diehl, H. Singh, G. Wang, Alberto Santoro, Seong Keun Kim, A. Boehnlein, P. M. Sood, H. L. Melanson, P. Z. Quintas, A. Jonckheere, Stephan Linn, J. Ellison, Y. Fisyak, J. H. Christenson, N. Oshima, Daria Zieminska, R. D. Schamberger, M. L. Kelly, Howard Gordon, K. C. Frame, O. Ramirez, G. Diloreto, S. P. Denisov, P. Grudberg, M. R. Krishnaswamy, F. Hsieh, A. R. Clark, A. Para, Sergey Chekulaev, T. Huehn, D. Fein, Erich Varnes, Daniel John Karmgard, N. Grossman, Y. Pischalnikov, Ulrich Heintz, F. Stichelbaut, H. Jöstlein, M. Diesburg, D. Owen, V. Oguri, Jing Li, J. Tarazi, S. Krzywdzinski, A. L. Lyon, Shuichi Kunori, V. I. Kochetkov, Alexander Belyaev, M. L. Stevenson, S. Feher, Ting Hu, P. Hanlet, A. Zylberstejn, Gervasio Gomez, J. Warchol, A. Zieminski, G. Finocchiaro, C. Shaffer, D. Cullen-Vidal, K. Genser, A. Goldschmidt, H. Greenlee, H. D. Wahl, N. N. Biswas, R. Yamanda, P. Mooney, S. Chopra, S. Reucroft, T. Ferbel, C. Yoshikawa, A. Bross, M. H.G. Souza, Serban Protopopescu, P. Yepes, H. E. Montgomery, S. Y. Jun, J. V.D. Wirjawan, T. L.T. Thomas, P. Gartung, Emanuela Barberis, D. Casey, G. E. Forden, A. P. Heinson, J. Z.Y. Jiang, Elizabeth Gallas, L. T. Goss, R. E. Hall, J. L. González Solís, C. Klopfenstein, Z. Casilum, W. Smart, K. A. Johns, R. Hernández-Montoya, N. Sotnikova, E. A. Kozlovski, J. Krane, Rajendran Raja, H. Haggerty, S. Lökös, Brad Abbott, J. Yang, V. M. Podstavkov, P. Bloom, J. A. Wightman, M. Fortner, N. I. Bojko, J. Perkins, S. C. Loken, N. Amos, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, H. Piekarz, B. Baldin, Y. Ducros, J. B. Singh, Victor Daniel Elvira, S. Youssef, S. Choi, A. Sanchez-Hernandez, Robert Kehoe, J. Balderston, R. L. Lander, D. Lincoln, Eunil Won, and K. S. Hahn

Subjects
Physics, Particle physics, Luminosity (scattering theory), High Energy Physics::Phenomenology, Detector, Tevatron, General Physics and Astronomy, law.invention, Nuclear physics, law, Transverse mass, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, Collider, Boson
Abstract

We report a measurement of the W boson mass based on an integrated luminosity of 82 pb −1 from pp collisions at √s = 1.8 TeV recorded in 1994-1995 by the D0 detector at the Fermilab Tevatron. We identify W bosons by their decays to e∨ V and extract the mass by fitting the transverse mass spectrum from 28 323 W boson candidates. A sample of 3563 dielectron events, mostly due to Z→ee decays, constrains models of W boson production and the detector. We measure M W = 80.44±0.10(stat)±0.07(syst) GeV. By combining this measurement with our result form the 1992-1993 data set, we obtain M W = 80.43±0.11 GeV.

Published
1998

47. Zγproduction inpp¯collisions ats=1.8TeVand limits on anomalousZZγandZγγcouplings

Author

G. Eppley, A. Jonckheere, P. Padley, Alexey Volkov, A. P. Vorobiev, Stephan Linn, S. P. Denisov, Ulrich Heintz, J. Jaques, H. da Motta, J. G.R. Lima, Y. Fisyak, S. Krzywdzinski, R. Lander, R. D. Schamberger, S. C. Loken, M. R. Krishnaswamy, Mitchell Wayne, H. Schellman, J. M. Kohli, N. Oshima, V. I. Kochetkov, A. S. Ito, M. Diesburg, F. Hsieh, A. R. Clark, Daria Zieminska, Marvin Johnson, L. Magaña-Mendoza, D. Owen, A. Para, Stefan Grünendahl, Sergey Chekulaev, A. L. Lyon, J. Thompson, A. Zylberstejn, Jan M. Guida, A. V. Kozelov, J. Womersley, J. Tarazi, P. Bloom, I. Adam, K. W. Merritt, B. Gómez, Z. H. Zhu, Gordon Watts, V. Sirotenko, H. Greenlee, T. Heuring, J. F. Bartlett, S. Glenn, J. McKinley, N. I. Bojko, Robert Kehoe, Yanwen Liu, Robert Snihur, S. R. Dugad, D. A. Stoianova, O. V. Eroshin, R. Markeloff, Elizabeth Gallas, H. Jostlein, M. L. Kelly, Howard Gordon, K. C. Frame, Joan A. Guida, O. Ramirez, Phillip Gutierrez, Wagner Carvalho, Raymond Brock, Boaz Klima, Gervasio Gomez, J. Cochran, E. G. Zverev, S. M. Chang, K. Gounder, N. Sotnikova, T. Huehn, S. Feher, Ting Hu, D. Fein, Andrew White, Cecilia Elena Gerber, D. Chakraborty, D. Norman, D. Vititoe, Sándor Lökös, J. Yang, G. Di Loreto, R. J. Genik, S. Willis, M. A. Shupe, B. Lauer, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, C. Shaffer, D. Cullen-Vidal, C. S. Mishra, Yu. Pischalnikov, A. Goldschmidt, M. H.G. Souza, Don Lincoln, Erich Varnes, H. E. Montgomery, A. Klatchko, A. Zieminski, M. Pang, C. Cretsinger, Daniel John Karmgard, Jianming Qian, N. N. Biswas, D. Denisov, V. M. Podstavkov, C. Boswell, L. Lueking, Srinivasan Rajagopalan, A. V. Kostritskiy, J. S. Hoftun, K. Davis, J. N. Butler, P. D. Grannis, Sissel Hansen, S. Chopra, M. Chung, H. Piekarz, Vasken Hagopian, M. Strovink, E. James, Thomas Ferbel, H. Weerts, M. Fortner, P. Grudberg, Y. E. Gutnikov, J. Kourlas, Y. M. Park, Tong Hu, R. Jesik, J. Perkins, Suman Bala Beri, C. Klopfenstein, B. G. Pope, R. Hernández-Montoya, H. L. Melanson, P. Z. Quintas, M. Strauss, Peter Nemethy, K. Del Signore, Lev Dudko, H. Lan, John Hobbs, Stephen Wimpenny, C. T. Murphy, A. N. Galyaev, N. Grossman, D. Stewart, K. Bazizi, K. M. Mauritz, P.F. Ermolov, Sebastien Jonathan Kahn, S. N. Gurzhiev, J. M. Hauptman, S. Y. Jun, S. K. Kim, N.V. Mokhov, T. L.T. Thomas, J. H. Christenson, Hiroaki Aihara, M. Bhattacharjee, M. R. Adams, B. May, Young-Sang Yu, M. Abolins, N. A. Roe, Emanuela Barberis, J. Z.Y. Jiang, D. Edmunds, W. E. Cooper, M. Demarteau, Alexander Belyaev, B. Baldin, A. P. Heinson, Y. Ducros, J. B. Singh, P. Gartung, Andre Sznajder, P. M. Tuts, G. P. Grim, M.K. Fatyga, E. Amidi, G. Guglielmo, P. Hanlet, V. S. Burtovoi, T. Marshall, J. V.D. Wirjawan, Matthew Jones, David H. Adams, P. Yamin, R. E. Hall, S. A. Jerger, L. T. Goss, Robert Hirosky, G. Wang, Alberto Santoro, K. S. Hahn, B. S. Acharya, M. D. Peters, T. Fahland, W. M. Smart, J. L. González Solís, Z. Casilum, C. L. Kim, L. Oesch, T. G. Trippe, H. Haggerty, E. W. Anderson, P. Mooney, B. Gobbi, S. Mani, Elizaveta Shabalina, H. A. Neal, H. C. Shankar, M. Goforth, E. A. Kozlovski, W. Y. Chen, Darien Wood, Gilvan Alves, P. Rubinov, T. Joffe-Minor, G. Finocchiaro, Jong-Sung Yu, Victor Daniel Elvira, Marc M Baarmand, Sharon Hagopian, H. E. Fisk, H. D. Wahl, R. Astur, Nicholas John Hadley, Heriberto Castilla-Valdez, Allen Mincer, R. J. Madaras, A. Gupta, D. Cutts, R. Madden, George R. Kalbfleisch, V. S. Narasimham, Q. Z. Li-Demarteau, S. Blessing, G.E. Forden, R. W. Stephens, E. Flattum, J. Solomon, L. Rasmussen, A. K.A. Maciel, Peter W. Draper, S. Youssef, S. Choi, B. C. Choudhary, N. K. Mondal, V. Oguri, Sebastian Grinstein, Scott Snyder, Jing Li, H. T. Diehl, A. A. Mayorov, N. Parua, Randy Ruchti, D. Buchholz, A. D. Bross, S. Reucroft, M. K. Fatyga, T.R. McMahon, M. Paterno, M. L. Stevenson, Robert J. McCarthy, A. Sanchez-Hernandez, J. Snow, S. Protopopescu, D. P. Stoker, T. Yasuda, B. Pawlik, J. Warchol, P. Yepes, R. Piegaia, P. Tamburello, N. Amos, K. Genser, C. Yoshikawa, Heng Xu, Anna Goussiou, A. V. Kotwal, H. Singh, D.R. Green, J. Balderston, J. Krane, A. Boehnlein, Greg Landsberg, B. Gibbard, Rajendran Raja, D. Casey, Meenakshi Narain, J. A. Wightman, J. Kotcher, C. K. Jung, T. McKibben, Gregory R Snow, J. Sculli, Eunil Won, Brad Abbott, S. Lami, N. Graf, Nikos Varelas, R. K. Shivpuri, K. Streets, Vipin Bhatnagar, T. L. Geld, P. M. Sood, Shuichi Kunori, D. R. Claes, K. A. Johns, M. Tartaglia, Kaushik De, J. Ellison, S. Fuess, H. S. Mao, A. Narayanan, A. Baden, G. C. Blazey, W. G. Cobau, M. Sosebee, R. Yamada, S. H. Ahn, Hui Li, Orin I. Dahl, F. Landry, John Rutherfoord, J. Bantly, R. Partridge, James C. Green, F. Borcherding, E. Oltman, Sarah Catherine Eno, Andrew Brandt, R. Engelmann, Liu Chen, Vyacheslav Klyukhin, H.E. Miettinen, F. Nang, Richard B. Lipton, A. L. Spadafora, P. I. Goncharov, A. Leflat, M. I. Martin, F. Stichelbaut, J. S. Kang, J. McDonald, S. Banerjee, V. Balamurali, M. Merkin, D. Hedin, P. C. Bhat, F. Lobkowicz, T. Rockwell, Iain Alexander Bertram, Michael Rijssenbeek, V. N. Evdokimov, D.S. Koltick, J. T. Linnemann, V. A. Bezzubov, J. P. Negret, R. P. Smith, Harrison Prosper, and J. T. White

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics
Published
1998

48. Search for First Generation Scalar Leptoquark Pairs inpp¯Collisions ats=1.8TeV

Author

W. Y. Chen, Gilvan Alves, J. T. White, George R. Kalbfleisch, V. S. Narasimham, A. A. Mayorov, W. G. Cobau, C. T. Murphy, W. M. Smart, J. Snow, P. Hanlet, M. Sosebee, B. Gibbard, Hui Li, T. G. Trippe, A. Klatchko, P. Bloom, J. Bantly, D. Hedin, M. Chung, K. Streets, Vipin Bhatnagar, J. Sculli, H. S. Mao, B. May, Sharon Hagopian, A. K.A. Maciel, J. V.D. Wirjawan, N. I. Bojko, L. Lueking, Nikos Varelas, S. Reucroft, C. Yoshikawa, G. Eppley, Ulrich Heintz, Andrew Brandt, S. P. Denisov, R. Engelmann, P. C. Bhat, Liu Chen, F. Lobkowicz, K. Del Signore, M. A. Shupe, R. K. Shivpuri, G. Guglielmo, G. Finocchiaro, B. Gobbi, R. Piegaia, M. Diesburg, L. Magaña-Mendoza, H. da Motta, J. G.R. Lima, M. R. Krishnaswamy, T. Rockwell, Iain Alexander Bertram, M. Abolins, Marc M Baarmand, Michael Rijssenbeek, D. R. Claes, Hiroaki Aihara, H.E. Miettinen, D. Owen, H. D. Wahl, Georg Steinbrueck, P. Yepes, N. Amos, K. Genser, P. M. Tuts, G. P. Grim, F. Hsieh, J. S. Hoftun, K. Davis, J. N. Butler, M. Tartaglia, P. Mooney, J. Tarazi, D. Stewart, V. Oguri, P. D. Grannis, H. Piekarz, A. R. Clark, Sebastien Jonathan Kahn, A. S. Ito, G.E. Forden, A. Para, V. N. Evdokimov, S. N. Gurzhiev, E. W. Anderson, Rajendran Raja, Kaushik De, D.S. Koltick, T. Huehn, J. T. Linnemann, D. Fein, D. Chakraborty, N. K. Mondal, H. T. Diehl, J. M. Hauptman, Sergey Chekulaev, H. A. Neal, H. C. Shankar, Gervasio Gomez, M. Goforth, H. Singh, T.R. McMahon, M. Paterno, M. L. Stevenson, S. M. Chang, Raymond Brock, Boaz Klima, V. A. Bezzubov, J. P. Negret, J. Krane, J. Warchol, S. Youssef, S. Choi, R. P. Smith, Brad Abbott, T. Yasuda, Shuichi Kunori, K. A. Johns, A. Boehnlein, A. D. Bross, Robert J. McCarthy, C. S. Mishra, P. M. Sood, I. Adam, D. Norman, A. Sanchez-Hernandez, J. Ellison, Don Lincoln, Erich Varnes, Daniel John Karmgard, Elizabeth Gallas, C. Shaffer, D. Cullen-Vidal, A. Goldschmidt, H. Jostlein, S. Fuess, S. Feher, D.R. Green, J. Balderston, Allen Mincer, N. N. Biswas, J. Jaques, Sebastian Grinstein, S. Willis, R. Partridge, R. W. Stephens, Stephen Wimpenny, C. Klopfenstein, K. W. Merritt, J. F. Bartlett, V. Manankov, Robert Kehoe, Harrison Prosper, Ting Hu, S. Chopra, Meenakshi Narain, D. P. Stoker, A. N. Galyaev, Heriberto Castilla-Valdez, B. Knuteson, J. Womersley, T. Marshall, A. V. Kostritskiy, Yanwen Liu, Darien Wood, Eunil Won, R. Hernández-Montoya, A. Zieminski, Sissel Hansen, R. Jesik, D. Karmanov, Nicholas John Hadley, E. G. Zverev, Brajesh C Choudhary, S. Blessing, Joan A. Guida, Robert Snihur, Yu. Pischalnikov, W. E. Cooper, A. Narayanan, Scott Snyder, B. Baldin, N. Sotnikova, L. Coney, Y. Ducros, J. B. Singh, Vasken Hagopian, H. Weerts, M. Demarteau, Jing Li, R. Markeloff, Alexander Belyaev, M. L. Kelly, G. Di Loreto, P. Gartung, M. Merkin, D. Denisov, M.K. Fatyga, K. Bazizi, S. Y. Jun, T. L.T. Thomas, T. Fahland, Jong-Sung Yu, Srinivasan Rajagopalan, B. S. Acharya, Lev Dudko, Thomas Ferbel, M. Strauss, N.V. Mokhov, Victor Daniel Elvira, C. L. Kim, S. A. Jerger, A. L. Spadafora, P. Padley, Alexey Volkov, Y. Fisyak, P. I. Goncharov, James H Cochran, R. Lander, Peter Nemethy, Mitchell Wayne, H. Schellman, J. M. Kohli, Marvin Johnson, A. P. Heinson, A. L. Lyon, S. R. Dugad, Stefan Grünendahl, A. V. Kozelov, J. Thompson, B. Gómez, Z. H. Zhu, R. E. Hall, J. L. González Solís, Howard Gordon, K. C. Frame, O. Ramirez, C. Cretsinger, M. Strovink, E. James, Z. Casilum, S. Krzywdzinski, M. Bhattacharjee, V. I. Kochetkov, Gordon Watts, A. Zylberstejn, Jan M. Guida, H. Greenlee, V. Sirotenko, O. V. Eroshin, Phillip Gutierrez, D. Buchholz, Matthew Jones, A. Gupta, Q. Z. Li-Demarteau, P. Tamburello, N. Parua, Randy Ruchti, Heng Xu, T. Heuring, Anna Goussiou, A. V. Kotwal, Andrew White, J. A. Wightman, P. Grudberg, Gregory R Snow, Y. E. Gutnikov, J. Kourlas, S. Glenn, J. McKinley, D. A. Stoianova, Wagner Carvalho, John Hobbs, M. R. Adams, Young-Sang Yu, N. A. Roe, M. H.G. Souza, E. Flattum, H. E. Montgomery, D. Vititoe, R. J. Genik, E. Smith, K. M. Mauritz, D. Edmunds, P.F. Ermolov, Andre Sznajder, Sándor Lökös, J. Yang, V. S. Burtovoi, M. D. Peters, R. Astur, L. Oesch, V. M. Podstavkov, R. J. Madaras, M. Fortner, C. Boswell, A. Baden, J. Perkins, Suman Bala Beri, G. C. Blazey, R. Yamada, N. Grossman, S. H. Ahn, Emanuela Barberis, J. Z.Y. Jiang, L. T. Goss, Orin I. Dahl, F. Landry, John Rutherfoord, E. A. Kozlovski, R. D. Schamberger, S. C. Loken, F. Borcherding, E. Oltman, Sarah Catherine Eno, Vyacheslav Klyukhin, F. Nang, Richard B. Lipton, K. S. Hahn, D. Cutts, S. Protopopescu, Greg Landsberg, S. Lami, T. L. Geld, G. Wang, Alberto Santoro, H. Haggerty, P. Rubinov, Cecilia Elena Gerber, Jianming Qian, Tong Hu, T. Joffe-Minor, H. E. Fisk, J. Solomon, K. Gounder, B. Lauer, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, Y. M. Park, A. Jonckheere, Stephan Linn, N. Oshima, Daria Zieminska, P. Yamin, S. Mani, R. Madden, L. Rasmussen, Peter W. Draper, H. L. Melanson, P. Z. Quintas, S. K. Kim, J. H. Christenson, David H. Adams, B. Pawlik, D. Casey, J. Kotcher, N. Graf, C. K. Jung, T. McKibben, Alexander Vorobiev, B. G. Pope, Elizaveta Shabalina, A. Leflat, M. I. Martin, F. Stichelbaut, J. S. Kang, J. McDonald, S. Banerjee, V. Balamurali, and Robert Hirosky

Subjects
Physics, Particle physics, Branching fraction, Scalar (mathematics), Tevatron, General Physics and Astronomy, law.invention, Nuclear physics, Pair production, law, High Energy Physics::Experiment, Leptoquark, Fermilab, Collider, Lepton
Abstract

We have searched for first generation scalar leptoquark (LQ) pairs in the enu+jets channel using ppbar collider data (integrated luminosity= 115 pb^-1) collected by the DZero experiment at the Fermilab Tevatron during 1992-96. The analysis yields no candidate events. We combine the results with those from the ee+jets and nunu+jets channels to obtain 95% confidence level (CL) upper limits on the LQ pair production cross section as a function of mass and of beta, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% CL lower limits on the LQ mass of 225, 204, and 79 GeV/c^2 for beta=1, 1/2, and 0, respectively.

Published
1998

49. Search for the decay b→Xμ+μ−

Author

B. Abbott, M. Abolins, B.S. Acharya, I. Adam, D.L. Adams, M. Adams, S. Ahn, H. Aihara, G.A. Alves, N. Amos, E.W. Anderson, R. Astur, M.M. Baarmand, A. Baden, V. Balamurali, J. Balderston, B. Baldin, S. Banerjee, J. Bantly, E. Barberis, J.F. Bartlett, K. Bazizi, A. Belyaev, S.B. Beri, I. Bertram, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Bhattacharjee, N. Biswas, G. Blazey, S. Blessing, P. Bloom, A. Boehnlein, N.I. Bojko, F. Borcherding, C. Boswell, A. Brandt, R. Brock, A. Bross, D. Buchholz, V.S. Burtovoi, J.M. Butler, W. Carvalho, D. Casey, Z. Casilum, H. Castilla-Valdez, D. Chakraborty, S.-M. Chang, S.V. Chekulaev, L.-P. Chen, W. Chen, S. Choi, S. Chopra, B.C. Choudhary, J.H. Christenson, M. Chung, D. Claes, A.R. Clark, W.G. Cobau, J. Cochran, L. Coney, W.E. Cooper, C. Cretsinger, D. Cullen-Vidal, M.A.C. Cummings, D. Cutts, O.I. Dahl, K. Davis, K. De, K. Del Signore, M. Demarteau, D. Denisov, S.P. Denisov, H.T. Diehl, M. Diesburg, G. Di Loreto, P. Draper, Y. Ducros, L.V. Dudko, S.R. Dugad, D. Edmunds, J. Ellison, V.D. Elvira, R. Engelmann, S. Eno, G. Eppley, P. Ermolov, O.V. Eroshin, V.N. Evdokimov, T. Fahland, M.K. Fatyga, S. Feher, D. Fein, T. Ferbel, G. Finocchiaro, H.E. Fisk, Y. Fisyak, E. Flattum, G.E. Forden, M. Fortner, K.C. Frame, S. Fuess, E. Gallas, A.N. Galyaev, P. Gartung, T.L. Geld, R.J. Genik II, K. Genser, C.E. Gerber, B. Gibbard, S. Glenn, B. Gobbi, A. Goldschmidt, B. Gómez, G. Gómez, P.I. Goncharov, J.L. González Solı́s, H. Gordon, L.T. Goss, K. Gounder, A. Goussiou, N. Graf, P.D. Grannis, D.R. Green, H. Greenlee, G. Grim, S. Grinstein, N. Grossman, P. Grudberg, S. Grünendahl, G. Guglielmo, J.A. Guida, J.M. Guida, A. Gupta, S.N. Gurzhiev, P. Gutierrez, Y.E. Gutnikov, N.J. Hadley, H. Haggerty, S. Hagopian, V. Hagopian, K.S. Hahn, R.E. Hall, P. Hanlet, S. Hansen, J.M. Hauptman, D. Hedin, A.P. Heinson, U. Heintz, R. Hernández-Montoya, T. Heuring, R. Hirosky, J.D. Hobbs, B. Hoeneisen, J.S. Hoftun, F. Hsieh, Ting Hu, Tong Hu, T. Huehn, A.S. Ito, E. James, J. Jaques, S.A. Jerger, R. Jesik, J.Z.-Y. Jiang, T. Joffe-Minor, K. Johns, M. Johnson, A. Jonckheere, M. Jones, H. Jöstlein, S.Y. Jun, C.K. Jung, S. Kahn, G. Kalbfleisch, J.S. Kang, D. Karmanov, D. Karmgard, R. Kehoe, M.L. Kelly, C.L. Kim, S.K. Kim, A. Klatchko, B. Klima, C. Klopfenstein, V.I. Klyukhin, V.I. Kochetkov, J.M. Kohli, D. Koltick, A.V. Kostritskiy, J. Kotcher, A.V. Kotwal, J. Kourlas, A.V. Kozelov, E.A. Kozlovski, J. Krane, M.R. Krishnaswamy, S. Krzywdzinski, S. Kunori, S. Lami, R. Lander, F. Landry, G. Landsberg, B. Lauer, A. Leflat, H. Li, J. Li, Q.Z. Li-Demarteau, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, R. Lipton, Y.C. Liu, F. Lobkowicz, S.C. Loken, S. Lökös, L. Lueking, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, R. Madden, L. Magaña-Mendoza, V. Manankov, S. Mani, H.S. Mao, R. Markeloff, T. Marshall, M.I. Martin, K.M. Mauritz, B. May, A.A. Mayorov, R. McCarthy, J. McDonald, T. McKibben, J. McKinley, T. McMahon, H.L. Melanson, M. Merkin, K.W. Merritt, H. Miettinen, A. Mincer, C.S. Mishra, N. Mokhov, N.K. Mondal, H.E. Montgomery, P. Mooney, H. da Motta, C. Murphy, F. Nang, M. Narain, V.S. Narasimham, A. Narayanan, H.A. Neal, J.P. Negret, P. Nemethy, D. Norman, L. Oesch, V. Oguri, E. Oliveira, E. Oltman, N. Oshima, D. Owen, P. Padley, A. Para, Y.M. Park, R. Partridge, N. Parua, M. Paterno, B. Pawlik, J. Perkins, M. Peters, R. Piegaia, H. Piekarz, Y. Pischalnikov, V.M. Podstavkov, B.G. Pope, H.B. Prosper, S. Protopopescu, J. Qian, P.Z. Quintas, R. Raja, S. Rajagopalan, O. Ramirez, L. Rasmussen, S. Reucroft, M. Rijssenbeek, T. Rockwell, M. Roco, N.A. Roe, P. Rubinov, R. Ruchti, J. Rutherfoord, A. Sánchez-Hernández, A. Santoro, L. Sawyer, R.D. Schamberger, H. Schellman, J. Sculli, E. Shabalina, C. Shaffer, H.C. Shankar, R.K. Shivpuri, M. Shupe, H. Singh, J.B. Singh, V. Sirotenko, W. Smart, E. Smith, R.P. Smith, R. Snihur, G.R. Snow, J. Snow, S. Snyder, J. Solomon, P.M. Sood, M. Sosebee, N. Sotnikova, M. Souza, A.L. Spadafora, G. Steinbrück, R.W. Stephens, M.L. Stevenson, D. Stewart, F. Stichelbaut, D.A. Stoianova, D. Stoker, M. Strauss, K. Streets, M. Strovink, A. Sznajder, P. Tamburello, J. Tarazi, M. Tartaglia, T.L.T. Thomas, J. Thompson, T.G. Trippe, P.M. Tuts, N. Varelas, E.W. Varnes, D. Vititoe, A.A. Volkov, A.P. Vorobiev, H.D. Wahl, G. Wang, J. Warchol, G. Watts, M. Wayne, H. Weerts, A. White, J.T. White, J.A. Wightman, S. Willis, S.J. Wimpenny, J.V.D. Wirjawan, J. Womersley, E. Won, D.R. Wood, H. Xu, R. Yamada, P. Yamin, J. Yang, T. Yasuda, P. Yepes, C. Yoshikawa, S. Youssef, J. Yu, Y. Yu, Z.H. Zhu, D. Zieminska, A. Zieminski, E.G. Zverev, and A. Zylberstejn

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Neutral current, Branching fraction, Detector, High Energy Physics::Experiment, Fermilab, Limit (mathematics)
Abstract

We have searched for the flavor-changing neutral current decay b -> s mu+ mu- in p pbar collisions at sqrt(s) = 1.8 TeV with the DO detector at Fermilab. We determine the 90% confidence level limit for the branching fraction to be B(b -> X_s mu+ mu-) < 3.2 x 10^{-4}. We argue that this limit is more stringent than the best published limit on this decay rate.

Published
1998

50. Search for Scalar Leptoquark Pairs Decaying to Electrons and Jets inp¯pCollisions

Author

B. G. Pope, Stephen Wimpenny, Joan A. Guida, V. A. Bezzubov, J. P. Negret, R. P. Smith, J. Cochran, J. Li, Matthew Jones, Elizaveta Shabalina, T. Marshall, Q. Z. Li-Demarteau, Gordon Watts, V. Sirotenko, N. Parua, Randy Ruchti, G. Di Loreto, Darien Wood, M. Bhattacharjee, H. A. Neal, H. C. Shankar, O. V. Eroshin, Phillip Gutierrez, G. Eppley, H. da Motta, J. G.R. Lima, S. Youssef, S. Choi, A. V. Kotwal, Harrison Prosper, Nicholas John Hadley, S. Blessing, Scott Snyder, D. Denisov, Srinivasan Rajagopalan, Thomas Ferbel, Robert J. McCarthy, A. Sanchez-Hernandez, C. S. Mishra, G. Guglielmo, S. M. Chang, P. Padley, Alexey Volkov, M. Sosebee, M. Goforth, C. K. Jung, T. McKibben, R. Markeloff, A. N. Galyaev, A. S. Ito, Vasken Hagopian, H. Weerts, Mitchell Wayne, H. Schellman, J. M. Kohli, Robert Hirosky, D.R. Green, J. Balderston, Lev Dudko, P. C. Bhat, F. Lobkowicz, T. Rockwell, Iain Alexander Bertram, C. Klopfenstein, Alexander Vorobiev, R. K. Shivpuri, Stefan Grünendahl, J. Thompson, D. R. Claes, B. Gómez, D. Stewart, Gervasio Gomez, W. Y. Chen, Gilvan Alves, P. Yamin, Hui Li, Michael Rijssenbeek, Sebastien Jonathan Kahn, S. N. Gurzhiev, M. Tartaglia, Eunil Won, J. M. Guida, Z. H. Zhu, George R. Kalbfleisch, M. Abolins, Shuichi Kunori, S. Mani, J. M. Hauptman, J. Bantly, Kaushik De, V. S. Narasimham, K. A. Johns, N. Grossman, W. E. Cooper, V. N. Evdokimov, J. Warchol, B. Baldin, A. Klatchko, A. V. Kostritskiy, A. A. Mayorov, D.S. Koltick, P. Mooney, J. T. Linnemann, W. M. Smart, T. Huehn, R. Madden, M. K. Fatyga, C. Shaffer, D. Cullen-Vidal, A. Goldschmidt, J. Snow, Sissel Hansen, L. Rasmussen, N. N. Biswas, Peter W. Draper, T. G. Trippe, Y. Fisyak, R. Lander, J. T. White, R. Engelmann, Liu Chen, N. K. Mondal, Y. Ducros, J. B. Singh, B. May, S. Chopra, C. T. Murphy, Sharon Hagopian, A. K.A. Maciel, K. Gounder, J. Featherly, J. Jaques, A. Leflat, L. Lueking, H.E. Miettinen, K. Bazizi, H. T. Diehl, Jong-Sung Yu, Marvin Johnson, B. Gibbard, M. Nicola, Yu. Pischalnikov, B. Lauer, M. A.C. Cummings, B. Hoeneisen, W. G. Cobau, M. I. Martin, F. Stichelbaut, Lee Sawyer, Sun Kee Kim, H. L. Melanson, P. Z. Quintas, K. Del Signore, H. Singh, L. Magaña-Mendoza, P. Hanlet, I. Adam, J. Sculli, B. Gobbi, J. Krane, J. Womersley, E. W. Anderson, Alexander Belyaev, D. Fein, Nikos Varelas, A. L. Lyon, Anurag Gupta, Victor Daniel Elvira, J. Z.Y. Jiang, F. Borcherding, A. Bross, J. McDonald, Hiroaki Aihara, A. V. Kozelov, T. Fahland, Y. M. Park, Raymond Brock, J. H. Christenson, Boaz Klima, P. Bloom, A. Boehnlein, Heriberto Castilla-Valdez, G.E. Forden, P. M. Tuts, G. P. Grim, D. Hedin, P. M. Sood, S. Banerjee, M. Demarteau, Allen Mincer, N. I. Bojko, T. Yasuda, M. Strauss, D. Norman, David H. Adams, Ricardo Piegaia, Sebastian Grinstein, E. G. Zverev, Brajesh C Choudhary, Peter Nemethy, V. Balamurali, Don Lincoln, Erich Varnes, S. Willis, M. Pang, Ulrich Heintz, Meenakshi Narain, S. Reucroft, S. R. Dugad, M. A. Shupe, L. T. Goss, C. Yoshikawa, M. Diesburg, M. Chung, D. Owen, E. Amidi, Howard Gordon, J. V.D. Wirjawan, A. Narayanan, Daniel John Karmgard, J. Tarazi, A. Jonckheere, K. C. Frame, O. Ramirez, E. Oltman, J. S. Hoftun, K. Davis, J. N. Butler, D. Casey, P. D. Grannis, H. Piekarz, J. Kotcher, J. Ellison, M. H.G. Souza, P. Yepes, N. Amos, K. W. Merritt, J. F. Bartlett, N. Graf, K. Genser, K. Streets, Vipin Bhatnagar, Robert Kehoe, R. Hernández-Montoya, Yanwen Liu, S. Fuess, H. E. Montgomery, R. Partridge, Elizabeth Gallas, Robert Snihur, H. Jostlein, Soon Yung Jun, M. L. Kelly, N. Sotnikova, H. Lan, Rajendran Raja, H. S. Mao, S. P. Denisov, R. W. Stephens, M. R. Krishnaswamy, Sarah Catherine Eno, F. Hsieh, A. Para, Sergey Chekulaev, E. A. Kozlovski, A. L. Spadafora, G. Blazey, D. P. Stoker, G. Finocchiaro, R. Jesik, P. I. Goncharov, S. Krzywdzinski, H. D. Wahl, V. I. Kochetkov, D. Buchholz, E. Flattum, V. Oguri, A. Zylberstejn, T.R. McMahon, M. Paterno, M. L. Stevenson, H. Greenlee, Vyacheslav Klyukhin, F. Nang, Brad Abbott, Richard B. Lipton, P. Tamburello, R. Astur, Andrew White, Sándor Lökös, P. Grudberg, J. Yang, A. Baden, Heng Xu, Y. E. Gutnikov, Anna Goussiou, J. Kourlas, Q. Liu, V. M. Podstavkov, M. Fortner, J. A. Wightman, C. Cretsinger, M. Strovink, John Hobbs, J. Perkins, E. James, R. Yamada, P. Gartung, N.V. Mokhov, M.K. Fatyga, Gregory R Snow, D. Chakraborty, S. H. Ahn, A. P. Heinson, J. S. Kang, R. D. Schamberger, M. R. Adams, Young-Sang Yu, S. Feher, B. S. Acharya, K. M. Mauritz, S. Lami, A. R. Clark, S. C. Loken, C. L. Kim, R. E. Hall, J. L. González Solís, Ting Hu, P.F. Ermolov, Orin I. Dahl, F. Landry, John Rutherfoord, Z. Casilum, N. A. Roe, V. S. Burtovoi, A. Brandt, A. Zieminski, R. J. Madaras, James C. Green, T. Heuring, S. Glenn, K. S. Hahn, D. Cutts, J. McKinley, D. A. Stoianova, Wagner Carvalho, S. Protopopescu, T. L.T. Thomas, Greg Landsberg, M. Merkin, T. L. Geld, S. A. Jerger, D. Vititoe, R. J. Genik, M. M. Baarmand, D. Edmunds, Cecilia Elena Gerber, Andre Sznajder, M. D. Peters, L. Oesch, Jianming Qian, C. Boswell, Suman Bala Beri, Tong Hu, T. Joffe-Minor, C. Yanagisawa, H. E. Fisk, J. Solomon, G. Wang, Alberto Santoro, H. Haggerty, P. Rubinov, Stephan Linn, N. Oshima, and Daria Zieminska

Subjects
Nuclear physics, Physics, Particle physics, Particle decay, Pair production, Branching fraction, Scalar (mathematics), General Physics and Astronomy, High Energy Physics::Experiment, Elementary particle, Leptoquark, HERA, Lepton
Abstract

We have searched for the pair production of first generation scalar leptoquarks in the $\mathrm{eejj}$ channel using the full data set $(123{\mathrm{pb}}^{\ensuremath{-}1})$ collected with the D0 detector at the Fermilab Tevatron during 1992--1996. We observe no candidates with an expected background of approximately 0.4 events. Comparing the experimental 95% confidence level upper limit to theoretical calculations of the cross section with the assumption of a 100% branching fraction of $\mathrm{eq}$, we set a lower limit on the mass of a first generation scalar leptoquark of $225\mathrm{GeV}{/c}^{2}$. The results of this analysis rule out the interpretation of the excess of high ${Q}^{2}$ events at DESY HERA as leptoquarks which decay exclusively to $\mathrm{eq}$.

Published
1997

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