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1. Rethinking Contradictions and Inconsistencies in Teachers' Sensemaking and Actions

Author

Thomas M. Philip, Veer B. Kothari, and Andy Castro

Abstract

Teacher education research, by and large, has been profoundly influenced by psychological interpretations of beliefs, particularly the assumption that teachers attempt to reconcile, rationalize, minimize, or avoid contradictions. Building on research across multiple disciplines, which demonstrates that people live harmoniously with contradictions in many situations, we argue that suppositions that people feel compelled to address contradictions have obscured the multitude of inconsistencies that teachers navigate without notice in their everyday lives. Through a multisited, in-depth analysis of a teacher across planning, teaching, debrief and interview contexts, we show that what appears to be contradictory from the perspective of researchers is not necessarily inconsistent for teachers. We explore the theoretical, methodological, and professional learning implications of this shift in interpreting teacher contradictions and inconsistencies.

Published
2024
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2. Knowledge, Attitude, Practices, and Vaccine Hesitancy Among the Latinx Community in Southern California Early in the COVID-19 Pandemic: Cross-sectional Survey

Author

Shivani N Mehta, Zoe C Burger, Stephanie A Meyers-Pantele, Richard S Garfein, Dayanna O Ortiz, Pavan K Mudhar, Smit B Kothari, Jigna Kothari, Meena Meka, and Timothy Rodwell

Subjects
Medicine
Abstract

BackgroundThe Latinx population in the United States has experienced high rates of infection, hospitalization, and death since the beginning of the COVID-19 pandemic. There is little data on the knowledge, attitude, and practices (KAP) specifically in Latinx communities in the United States. ObjectiveWe aimed to assess COVID-19 KAP and vaccine hesitancy among a Latinx cohort in the early stages of the COVID-19 pandemic (from July 2020 to October 2020), at a unique time when a vaccine was not available. MethodsParticipants aged ≥18 years were recruited at a primary care clinic in Southern California and asked to self-report sociodemographic characteristics, KAP, and vaccine hesitancy. A subset of the participants answered the vaccine hesitancy assessment as it was added after the start of data collection. KAP items were summed to create composite scores, with higher scores reflecting increased COVID-19 knowledge, positive attitudes toward the COVID-19 pandemic, and disease prevention practices. Bivariate and multivariable regression models were fitted to test associations between sociodemographic characteristics and KAP scores. For our analysis, we only included patients who self-identified as Latinx. ResultsOur final data set included 265 participants. The participants had a mean age of 49 (IQR 38.5-59) years, and 72.1% (n=191) were female, 77% (n=204) had at most a high school degree, 34.7% (n=92) had an annual income

Published
2022
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3. Mechanisms of competitive selection: A canonical neural circuit framework

Author

Shreesh P Mysore and Ninad B Kothari

Subjects
selection, selective attention, perceptual decision-making, value-based choice, circuit, computation, Medicine, Science, Biology (General), QH301-705.5
Abstract

Competitive selection, the transformation of multiple competing sensory inputs and internal states into a unitary choice, is a fundamental component of animal behavior. Selection behaviors have been studied under several intersecting umbrellas including decision-making, action selection, perceptual categorization, and attentional selection. Neural correlates of these behaviors and computational models have been investigated extensively. However, specific, identifiable neural circuit mechanisms underlying the implementation of selection remain elusive. Here, we employ a first principles approach to map competitive selection explicitly onto neural circuit elements. We decompose selection into six computational primitives, identify demands that their execution places on neural circuit design, and propose a canonical neural circuit framework. The resulting framework has several links to neural literature, indicating its biological feasibility, and has several common elements with prominent computational models, suggesting its generality. We propose that this framework can help catalyze experimental discovery of the neural circuit underpinnings of competitive selection.

Published
2020
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4. Survey on Smart Security Surveillance System

Author

Prof. S. B. Kothari

Subjects
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Abstract

As an integral part of the safety and security many organizations, video rental has established its value and benefits many times by providing immediate management of property, people, the environment and property. This project operates in the form of the Embedded Real-Time Surveillance System Based Raspberry Pi SBC for internal detection that enhances monitoring technology to provide critical safety in our lives as well as consistent performance and alert operation. The proposed security solution depends on our integration of cameras and motion detectors into a web application. Raspberry Pi operates and controls motion detectors and video cameras for remote hearing and monitoring, streams streaming video and recording for future playback. This research focuses on the development of a detection system that detects strangers and responds quickly by taking and transferring images to wireless modules based on owners. This Raspberry Pi program based on Smart Surveillance System provides a remote location monitoring concept. The proposed solution provides a fully functional, efficient and easy-to-use global solution. This project will also introduce the concept of motion detection and tracking using image processing. This type of technology is very important when it comes to surveillance and security. The live video stream will be used to show how things can be found and tracked. The detection and tracking process will be based on the pixel threshold. Keyword: Internet Of Things (IOT), Raspberry pi, Picamera, PIR Sensor, Dropbox.

Published
2021
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5. Dynamic representation of 3D auditory space in the midbrain of the free-flying echolocating bat

Author

Ninad B Kothari, Melville J Wohlgemuth, and Cynthia F Moss

Subjects
superior colliculus, echolocating bats, free flying, 3D receptive fields, natural behavior, Eptesicus fuscus, Medicine, Science, Biology (General), QH301-705.5
Abstract

Essential to spatial orientation in the natural environment is a dynamic representation of direction and distance to objects. Despite the importance of 3D spatial localization to parse objects in the environment and to guide movement, most neurophysiological investigations of sensory mapping have been limited to studies of restrained subjects, tested with 2D, artificial stimuli. Here, we show for the first time that sensory neurons in the midbrain superior colliculus (SC) of the free-flying echolocating bat encode 3D egocentric space, and that the bat’s inspection of objects in the physical environment sharpens tuning of single neurons, and shifts peak responses to represent closer distances. These findings emerged from wireless neural recordings in free-flying bats, in combination with an echo model that computes the animal’s instantaneous stimulus space. Our research reveals dynamic 3D space coding in a freely moving mammal engaged in a real-world navigation task.

Published
2018
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6. Ancient midbrain inhibitory neurons control selective spatial attention

Author

Ninad B. Kothari, Wen-Kai You, Arunima Banerjee, Qingcheng Zhang, and Shreesh P. Mysore

Abstract

The neural circuit mechanisms for the control of selective visuospatial attention remain elusive. Here, in mice, we demonstrate that a relatively unknown, but evolutionarily conserved group of parvalbumin-positive inhibitory neurons in the mammalian midbrain, called the pLTN (periparabigeminal lateral tegmental nucleus), controls target selection and distractor suppression for spatial attention. Selectively inactivating pLTN in mice performing a human-like visuospatial attention task (flanker task) makes mice hyper-distractible, impairing accuracy (and perceptual sensitivity) of the target amidst distractors. It also impairs the reliability (categorical nature) of target selection. These deficits occur without affecting perceptual sensitivity to the target presented singly, motor plan selection, or task-related orienting behaviors. The behavioral results are consistent with pLTN’s action on the midbrain sensorimotor hub, the superior colliculus. We thus establish pLTN as a dedicated midbrain seat for the control of selective spatial attention.

Published
2022
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7. Target ranging by echolocation in bats: Performance and mechanisms

Author

Cynthia F. Moss, Ninad B. Kothari, Melville Wohlgemuth, Jinhong Luo, Aditya Krishna, and Xiaoyan Yin

Subjects
Acoustics and Ultrasonics, Arts and Humanities (miscellaneous)
Abstract

James Simmons’s early research on sonar ranging in echolocating bats generated two groundbreaking discoveries: (1) Bats compute object distance from the time delay between sonar calls and echoes, and they discriminate echo-delay differences in the microsecond range [Simmons, https://psycnet.apa.org/doi/10.1121/1.1913559 (1973)] and (2) A population of auditory neurons show facilitated and echo delay-tuned responses, a posited neural substrate of sonar ranging [Feng et al., https://10.1126/science.705350 (1978)]. These findings spawned decades of biosonar research around the world, and this talk will summarize three new findings on the mechanisms of sonar ranging in the big brown bat, Eptesicus fuscus. (1) Echo-delay tuned neurons in the midbrain of the free-flying bat show 3D spatial tuning to echoes from physical objects, and sonar-guided attention evokes sharper delay-dependent response areas and shifts to shorter echo delays. (2) Local field potential recordings from auditory midbrain neurons in the passively listening bat encode the time interval between call-echo pairs in the microsecond range, with accuracy dependent on signal duration and bandwidth. (3) A population of hippocampal CA1 neurons encodes the distance of sonar objects in bats as they track moving targets, and responses of hippocampal neurons depend on the production of sonar calls that yield echo returns.

Published
2023
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8. Developing a stepwise approach by integrating nutrition and lifestyle modifications in the management of diabetes amongst pregnant women in hospitals of urban Vadodara

Author

null V. Sengar and null B. Kothari

Abstract

Introduction: With estimated rates of Gestational Diabetes Mellitus being much higher in Indiathan West (10-14.3%) and an approximate of about 4 million women being affected nationwide at anygiven point in time has made Diabetes a major antenatal concern in India.Objective: To develop a stepwise approach by integrating nutrition and lifestyle modifications inmanagement of diabetes amongst pregnant womenMethods: The cross-sectional study comprised of situational analysis under Phase I wherein onetime in-depth interviews of doctors and pregnant women were conducted to identify screening, assessmentand management protocols being used. Six hundred pregnant women from government and privatehospitals across all four zones of Vadodara city were interviewed along with the doctors. Phase IIcomprised of an interactive session with doctors and nutritionists to discuss the issues faced whileimplementing routine screening, assessment and management protocols. Information was used to developstepwise approach.Results: Prevalence of Gestational Diabetes Mellitus and Diabetes in pregnancy were found to bedifferent as reported by the doctors versus what was observed by the researcher in the situational analysis.Majority (76%) women reported of being tested for diabetes using fasting or random blood sugar test.However, only 16% got Oral Glucose tolerance test done whereas 80% of the doctors reported of gettingOGTT done as an assessment method for these women. Almost all doctors (94.7) reported of dietcounselling being administered to the subjects however, only one hospital had a dietician. A stepwiseapproach was developed for screening and assessment of this pregnancy risk using the existing protocolsand including recommendations from Phase-II.Conclusion: A universal approach for integrated management with nutrition as the key componentfor efficient management and risk reduction for a safe pregnancy is the way forward which was the focalpoint of this study.

Published
2021
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9. Capturing A Screenshot in Time: Knowledge, Attitude, Practices, and Vaccine Hesitancy Among the Latinx Community in Southern California Early in the COVID-19 Pandemic (Preprint)

Author

Shivani Nilesh Mehta, Zoe C. Burger, Stephanie A. Meyers-Pantele, Richard S Garfein, Dayanna O Ortiz, Pavan Mudhar, Smit B. Kothari, Jigna Kothari, Meena Meka, and Timothy Rodwell

Abstract

BACKGROUND Background: The Latinx population in the United States have experienced high rates of infection, hospitalization, and death since the beginning of the COVID-19 pandemic. There is little data on the knowledge, attitude, and practices in specifically Latinx communities in the United States. OBJECTIVE We conducted a study to assess COVID-19 KAP and vaccine hesitancy among a Latinx cohort in the early stages COVID-19 pandemic, from July 2020 to October 2020 at a unique time when a vaccine was not available. METHODS Participants 18 years and older were recruited in a primary-care clinic in Southern California and asked to self-report sociodemographic characteristics, KAP, and vaccine hesitancy. KAP items were summed to create composite scores, with higher scores reflecting increased COVID-19 knowledge, positive attitudes towards the COVID-19 pandemic, and disease prevention practices. Bivariate and multivariable regression models were fit to test associations between sociodemographic characteristics and KAP scores. For our current analysis, we only included patients who self-identified as Latinx. RESULTS Our final data set included 256 participants. Participants had a mean age of 49 years (IQR 38.5-59), 72% of which were female, 77% had at most a high school degree, 35% had an annual income < $25,000, and 12% had previously tested positive for COVID-19. We found high knowledge regarding transmission and spread, moderate knowledge regarding symptoms awareness, overall negative attitudes which included high pessimism in government public health efforts and high amounts fear, anxiety, and frustration due to COVID-19 pandemic, and moderate participation in preventive practices. A college education was positively associated with a higher knowledge score compared to those without a college education (β = 0.14, 95% CI =0.01-1.60, p CONCLUSIONS Good knowledge and preventative practices in the population may have been a reflection of effective public health messaging and implementation of public health laws during the first wave of the pandemic; however, the overall fear and anxiety and may have been a reflection of the negative impact that the pandemic had on vulnerable populations such as Latinx community. Although our data is reflection of a previous time in the pandemic, we believe it captures a critical time in that can be used to provide unique insights regarding potential avenues for better protecting Latinx communities in future vaccine-resistant COVID-19 strains. INTERNATIONAL REGISTERED REPORT RR2-10.2196/25265

Published
2022
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10. Action Enhances Acoustic Cues for 3-D Target Localization by Echolocating Bats.

Author

Melville J Wohlgemuth, Ninad B Kothari, and Cynthia F Moss

Subjects
Biology (General), QH301-705.5
Abstract

Under natural conditions, animals encounter a barrage of sensory information from which they must select and interpret biologically relevant signals. Active sensing can facilitate this process by engaging motor systems in the sampling of sensory information. The echolocating bat serves as an excellent model to investigate the coupling between action and sensing because it adaptively controls both the acoustic signals used to probe the environment and movements to receive echoes at the auditory periphery. We report here that the echolocating bat controls the features of its sonar vocalizations in tandem with the positioning of the outer ears to maximize acoustic cues for target detection and localization. The bat's adaptive control of sonar vocalizations and ear positioning occurs on a millisecond timescale to capture spatial information from arriving echoes, as well as on a longer timescale to track target movement. Our results demonstrate that purposeful control over sonar sound production and reception can serve to improve acoustic cues for localization tasks. This finding also highlights the general importance of movement to sensory processing across animal species. Finally, our discoveries point to important parallels between spatial perception by echolocation and vision.

Published
2016
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11. Connecting Organic Chemistry Concepts with Real-World Contexts by Creating Infographics

Author

Ariana O. Hall, Carol Ann Castañeda, Devki B. Kothari, and Anne J. McNeil

Subjects
Coupling (physics), Human–computer interaction, Computer science, Organic Chemistry Concepts, Infographic, General Chemistry, Graphics, ComputingMilieux_MISCELLANEOUS, Education
Abstract

Infographics are increasingly used to communicate complex topics to the public. By coupling visually appealing graphics with compelling narratives, infographics can both engage and inform the audie...

Published
2019
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12. Student-Designed Green Chemistry Experiment for a Large-Enrollment, Introductory Organic Laboratory Course

Author

Tomohiro Kubo, Ariana O. Hall, Nancy Wu, Anne J. McNeil, Danielle M. Zurcher, Kikelomo N. Sekoni, Devki B. Kothari, Sameer Phadke, and Rachel L. Wallace

Subjects
Green chemistry, Reaction conditions, Class size, Computer science, Concept learning, education, Mathematics education, General Chemistry, Student learning, Education
Abstract

A 3-week module incorporating the principles of green chemistry was developed for a large-enrollment, introductory organic chemistry laboratory course. An emphasis was placed on students planning their own experiments with the goal of obtaining a greener reaction (week 1). Students executed their designed experiments in week 2 and were given an opportunity to repeat the experiment or further optimize the reaction conditions to improve the yields during week 3. A postlab writing assignment as well as pre- and postsemester surveys were used to evaluate student learning and confidence. These data revealed an increase in students’ understanding of green chemistry concepts as well as their confidence in their ability to modify a reaction to improve the results. We anticipate that this overall framework can be adapted to other large- and small-enrollment laboratory courses.

Published
2019

13. S3434 Gastric Compression Due to Splenic Cyst

Author

Pranay Srivastava, Rajmohan Rammohan, Charudatta Wankhade, Nausheer Khan, Bobby Jacob, Shino Prasandhan, and Dipti B. Kothari

Subjects
Splenic cyst, medicine.medical_specialty, Hepatology, business.industry, Gastroenterology, Medicine, Radiology, business, Compression (physics)
Published
2020
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18. Functional Organization and Dynamic Activity in the Superior Colliculus of the Echolocating Bat, Eptesicus fuscus

Author

Melville J. Wohlgemuth, Cynthia F. Moss, and Ninad B. Kothari

Subjects
0301 basic medicine, Nervous system, Male, Superior Colliculi, Signal Detection, Psychological, Sensory Receptor Cells, Context (language use), Sensory system, Human echolocation, Biology, Midbrain, 03 medical and health sciences, 0302 clinical medicine, Chiroptera, Orientation, Adaptation, Psychological, medicine, Animals, Research Articles, Adaptive behavior, Motor Neurons, Neurons, Neuroethology, General Neuroscience, Superior colliculus, Electrophysiological Phenomena, 030104 developmental biology, medicine.anatomical_structure, Echolocation, Female, Neuroscience, 030217 neurology & neurosurgery
Abstract

Sensory-guided behaviors require the transformation of sensory information into task-specific motor commands. Prior research on sensorimotor integration has emphasized visuomotor processes in the context of simplified orienting movements in controlled laboratory tasks rather than an animal's more complete, natural behavioral repertoire. Here, we conducted a series of neural recording experiments in the midbrain superior colliculus (SC) of echolocating bats engaged in a sonar target-tracking task that invoked dynamic active sensing behaviors. We hypothesized that SC activity in freely behaving animals would reveal dynamic shifts in neural firing patterns within and across sensory, sensorimotor, and premotor layers. We recorded neural activity in the SC of freely echolocating bats (three females and one male) and replicated the general trends reported in other species with sensory responses in the dorsal divisions and premotor activity in ventral divisions of the SC. However, within this coarse functional organization, we discovered that sensory and motor neurons are comingled within layers throughout the volume of the bat SC. In addition, as the bat increased pulse rate adaptively to increase resolution of the target location with closing distance, the activity of sensory and vocal premotor neurons changed such that auditory response times decreased, and vocal premotor lead times shortened. This finding demonstrates that SC activity can be modified dynamically in concert with adaptive behaviors and suggests that an integrated functional organization within SC laminae supports rapid and local integration of sensory and motor signals for natural, adaptive behaviors.SIGNIFICANCE STATEMENTNatural sensory-guided behaviors involve the rapid integration of information from the environment to direct flexible motor actions. The vast majority of research on sensorimotor integration has used artificial stimuli and simplified behaviors, leaving open questions about nervous system function in the context of natural tasks. Our work investigated mechanisms of dynamic sensorimotor feedback control by analyzing patterns of neural activity in the midbrain superior colliculus (SC) of an echolocating bat tracking and intercepting moving prey. Recordings revealed that sensory and motor neurons comingle within laminae of the SC to support rapid sensorimotor integration. Further, we discovered that neural activity in the bat SC changes with dynamic adaptations in the animal's echolocation behavior.

Published
2018

19. Adaptive sonar call timing supports target tracking in echolocating bats

Author

Melville J. Wohlgemuth, Cynthia F. Moss, and Ninad B. Kothari

Subjects
030110 physiology, 0301 basic medicine, Temporal clustering, Sonar imaging, Physiology, Computer science, Aquatic Science, Tracking (particle physics), Sonar, 03 medical and health sciences, Call rate, 0302 clinical medicine, Chiroptera, Animals, Computer vision, Predictability, Molecular Biology, Ecology, Evolution, Behavior and Systematics, business.industry, Sound, Insect Science, Echolocation, Predatory Behavior, Trajectory, Auditory localization, Animal Science and Zoology, Artificial intelligence, business, 030217 neurology & neurosurgery
Abstract

Echolocating bats dynamically adapt the features of their sonar calls as they approach obstacles and track targets. As insectivorous bats forage, they increase sonar call rate with decreasing prey distance, and often embedded in bat insect approach sequences are clusters of sonar sounds, termed sonar sound groups (SSGs). The bat's production of SSGs has been observed in both field and laboratory conditions, and is hypothesized to sharpen spatiotemporal sonar resolution. When insectivorous bats hunt insects, they may encounter erratically moving prey, which increases the demands on the bat's sonar imaging system. Here, we studied the bat's adaptive vocal behavior in an experimentally controlled insect tracking task, allowing us to manipulate the predictability of target trajectories and measure the prevalence of SSGs. With this system, we trained bats to remain stationary on a platform and track a moving prey item, whose trajectory was programmed either to approach the bat, or to move back and forth, before arriving at the bat. We manipulated target motion predictability by varying the order in which different target trajectories were presented to the bats. During all trials, we recorded the bat's sonar calls and later analyzed the incidence of SSG production during the different target tracking conditions. Our results demonstrate that bats increase the production of SSGs when target unpredictability increases, and decrease the production of SSGs when target motion predictability increases. Further, bats produce the same number of sonar vocalizations irrespective of the target motion predictability, indicating that the animal's temporal clustering of sonar call sequences to produce SSGs is purposeful, and therefore involves sensorimotor planning.

Published
2017

21. Sensorimotor integration on a rapid time scale

Author

Jinhong Luo, Ninad B. Kothari, and Cynthia F. Moss

Subjects
0301 basic medicine, Male, Speech production, Sound Spectrography, Speech recognition, Human echolocation, Summation, Background noise, 03 medical and health sciences, 0302 clinical medicine, Chiroptera, Animals, Nervous System Physiological Phenomena, Environmental noise, Multidisciplinary, Motor control, Biological Sciences, Lombard effect, Noise, 030104 developmental biology, Acoustic Stimulation, Echolocation, Female, Sensorimotor Cortex, Vocalization, Animal, Psychology, 030217 neurology & neurosurgery
Abstract

Sensing is fundamental to the control of movement: From grasping objects to speech production, sensing guides action. So far, most of our knowledge about sensorimotor integration comes from visually guided reaching and oculomotor integration, in which the time course and trajectories of movements can be measured at a high temporal resolution. By contrast, production of vocalizations by humans and animals involves complex and variable actions, and each syllable often lasts a few hundreds of milliseconds, making it difficult to infer underlying neural processes. Here, we measured and modeled the transfer of sensory information into motor commands for vocal amplitude control in response to background noise, also known as the Lombard effect. We exploited the brief vocalizations of echolocating bats to trace the time course of the Lombard effect on a millisecond time scale. Empirical studies revealed that the Lombard effect features a response latency of a mere 30 ms and provided the foundation for the quantitative audiomotor model of the Lombard effect. We show that the Lombard effect operates by continuously integrating the sound pressure level of background noise through temporal summation to guide the extremely rapid vocal-motor adjustments. These findings can now be extended to models and measures of audiomotor integration in other animals, including humans.

Published
2017

22. Dynamic representation of 3D auditory space in the midbrain of the free-flying echolocating bat

Author

Ninad B. Kothari, Melville J. Wohlgemuth, and Cynthia F. Moss

Subjects
0301 basic medicine, Male, Acoustics and Ultrasonics, Computer science, Brain activity and meditation, 01 natural sciences, superior colliculus, natural behavior, 0302 clinical medicine, Mesencephalon, Chiroptera, Eptesicus fuscus, Computer vision, Biology (General), 030223 otorhinolaryngology, 010301 acoustics, General Neuroscience, Representation (systemics), General Medicine, Object (philosophy), 3. Good health, 3D receptive fields, Medicine, free flying, Insight, Research Article, Superior Colliculi, Sensory Receptor Cells, QH301-705.5, Science, bats, Sensory system, Human echolocation, Stimulus (physiology), Sonar, General Biochemistry, Genetics and Molecular Biology, Midbrain, 03 medical and health sciences, Arts and Humanities (miscellaneous), 0103 physical sciences, Sensory coding, Animals, Orientation, Spatial, Auditory Cortex, Focus (computing), General Immunology and Microbiology, business.industry, Superior colliculus, Navigation system, Acoustics, Neurophysiology, Auditory midbrain, 030104 developmental biology, Receptive field, Echolocation, Flight, Animal, Robot, Artificial intelligence, Other, Vocalization, Animal, business, Neuroscience, echolocating bats, 030217 neurology & neurosurgery
Abstract

Essential to spatial orientation in the natural environment is a dynamic representation of direction and distance to objects. Despite the importance of 3D spatial localization to parse objects in the environment and to guide movement, most neurophysiological investigations of sensory mapping have been limited to studies of restrained subjects, tested with 2D, artificial stimuli. Here, we show for the first time that sensory neurons in the midbrain superior colliculus (SC) of the free-flying echolocating bat encode 3D egocentric space, and that the bat’s inspection of objects in the physical environment sharpens tuning of single neurons, and shifts peak responses to represent closer distances. These findings emerged from wireless neural recordings in free-flying bats, in combination with an echo model that computes the animal’s instantaneous stimulus space. Our research reveals dynamic 3D space coding in a freely moving mammal engaged in a real-world navigation task., eLife digest Humans and other animals can navigate their natural environments seamlessly, even if there are obstacles in their path. However, it is not well understood how an animal’s brain processes information from the senses to map where it is in relation to these objects, both in terms of distance and direction. Bats can help answer these questions because they use a biological navigation system: echolocation. Bat produce high-pitched squeaks and then listen to the echoes that return when the sound bounces off of nearby objects. A bat can then use this information to estimate both which direction an object is, and how far away it is. Bats can also change their echolocation signals to focus on different objects, and researchers can record and analyze these signals to directly measure what the bat is paying attention to. Kothari, Wohlgemuth and Moss have now investigated how the brain cells of bats process the animals’ movements while flying in three-dimensional space. A wireless probe was inserted into the midbrain region of each bat to detect whenever there was an electrical impulse in the nearby brain cells. The bats were then allowed to fly freely in a large room that contained obstacles, while each bat’s echolocation signals and brain activity were recorded. The experiments revealed a group of brain cells that codes for the position of an object in three-dimensional space. Kothari, Wohlgemuth and Moss noted that these brain cells register the distance to objects more precisely when the bat changed its echolocation behavior to focus on those objects. Moreover, the activity in the bat’s brain also shifted when the bat noticed a closer object. These findings are not only relevant to echolocating bats, but rather reflect the general role that shifts in attention may play when many species map the locations of objects around them. Further similar studies with other species would contribute to a more complete understanding of animals’ nervous systems work under natural conditions. In the future, these findings, and the studies that build upon them, could be applied to other fields of research like medicine or engineering. For example, smart wireless devices, designed to record and transmit physiological measurements based on movement, could efficiently monitor human health, and robots equipped with adaptive sonar could navigate effectively in complex environments.

Published
2017

23. Action Enhances Acoustic Cues for 3-D Target Localization by Echolocating Bats

Author

Cynthia F. Moss, Melville J. Wohlgemuth, and Ninad B. Kothari

Subjects
0301 basic medicine, Adaptive control, medicine.medical_treatment, Echoes, Computer Vision, Remote Sensing, Vocalization, 0302 clinical medicine, Chiroptera, Bats, Medicine and Health Sciences, Computer vision, Biology (General), Animal Signaling and Communication, media_common, Mammals, Animal Behavior, General Neuroscience, Physics, Head Movements, Vertebrates, Physical Sciences, Engineering and Technology, Anatomy, General Agricultural and Biological Sciences, Research Article, Computer and Information Sciences, Sensory processing, QH301-705.5, Bioacoustics, media_common.quotation_subject, Sensory system, Human echolocation, Sonar, Biology, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Perception, Motor system, medicine, otorhinolaryngologic diseases, Animals, Behavior, General Immunology and Microbiology, business.industry, Organisms, Biology and Life Sciences, Acoustics, Target Detection, 030104 developmental biology, Ears, Echolocation, Predatory Behavior, Amniotes, Artificial intelligence, business, Zoology, Head, 030217 neurology & neurosurgery
Abstract

Under natural conditions, animals encounter a barrage of sensory information from which they must select and interpret biologically relevant signals. Active sensing can facilitate this process by engaging motor systems in the sampling of sensory information. The echolocating bat serves as an excellent model to investigate the coupling between action and sensing because it adaptively controls both the acoustic signals used to probe the environment and movements to receive echoes at the auditory periphery. We report here that the echolocating bat controls the features of its sonar vocalizations in tandem with the positioning of the outer ears to maximize acoustic cues for target detection and localization. The bat’s adaptive control of sonar vocalizations and ear positioning occurs on a millisecond timescale to capture spatial information from arriving echoes, as well as on a longer timescale to track target movement. Our results demonstrate that purposeful control over sonar sound production and reception can serve to improve acoustic cues for localization tasks. This finding also highlights the general importance of movement to sensory processing across animal species. Finally, our discoveries point to important parallels between spatial perception by echolocation and vision., As an echolocating bat tracks a moving target, it produces head waggles and adjusts the separation of the tips of its ears to enhance cues for target detection and localization. These findings suggest parallels in active sensing between echolocation and vision., Author Summary As animals operate in the natural environment, they must detect and process relevant sensory information embedded in complex and noisy signals. One strategy to overcome this challenge is to use active sensing or behavioral adjustments to extract sensory information from a selected region of the environment. We studied one of nature’s champions in auditory active sensing—the echolocating bat—to understand how this animal extracts task-relevant acoustic cues to detect and track a moving target. The bat produces high-frequency vocalizations and processes information carried by returning echoes to navigate and catch prey. This animal serves as an excellent model of active sensing because both sonar signal transmission and echo reception are under the animal’s active control. We used high-speed stereo video images of the bat’s head and ear movements, along with synchronized audio recordings, to study how the bat coordinates adaptive motor behaviors when detecting and tracking moving prey. We found that the bat synchronizes changes in sonar vocal production with changes in the movements of the head and ears to enhance acoustic cues for target detection and localization.

Published
2016

24. The upgraded DO detector

Author

Vipin Bhatnagar, E. De La Cruz-Burelo, Laurent Chevalier, N. A. Kuchinsky, L. S. Vertogradov, Stephen Wimpenny, A. Bross, Y. Jacquier, Adam L. Lyon, Tiefu Zhao, N. Lahrichi, X. Zhang, T. Wlodek, B. Baumbaugh, Martin Grunewald, K. Genser, Ulrike Blumenschein, P. L.M. Podesta-Lerma, T. Marshall, Milos Lokajicek, Jean-Laurent Agram, Christian Autermann, A. Kostritski, Y. Arnoud, S. Lager, O. Dvornikov, M. Anastasoaie, U. Bassler, P. K. Mal, Darien Wood, Brad Abbott, Pierre Petroff, Sergey Denisov, D. Tompkins, P. Sheahan, S. E.K. Mattingly, M. Markus, V. Mikhailov, Chris Hays, K. J. Rani, A. Alton, V. V. Shary, L.V. Reddy, Vivek Jain, S. J. Hong, Paul Telford, Robert Hirosky, V. L. Malyshev, J. Rha, Alexander Khanov, F. Fleuret, Daniel R Claes, Yann Coadou, Nicholas John Hadley, C. P. Buszello, W. Kahl, S. Robinson, I. Churin, Regina Demina, R. Van Kooten, N. Jouravlev, Arnulf Quadt, Raimund Ströhmer, Michael A. Strauss, Michael Martens, R. Jayanti, B. Thooris, Marco Verzocchi, C. Magass, A. Besson, M. D. Corcoran, N. P. Kravchuk, V. A. Bezzubov, Elemer Nagy, G. Graham, Abdenour Lounis, A. Zieminski, Dugan O'Neil, E. G. Zverev, Joshua Thompson, R.J. Yarema, Arnaud Duperrin, H. S. Mao, V. Simak, Ted Zmuda, S. Blessing, Scott Snyder, V. S. Narasimhan, M. Abolins, J. P. Negret, D. Casey, E. Thomas, J. Huang, M. Vigneault, P. A. Rapidis, J. Lizarazo, A. M. Kalinin, V. M. Korablev, N. Spartana, Thomas Trefzger, E. J. Ramberg, S. N. Fatakia, Jaebeom Park, R. A. Sidwell, Suyong Choi, Rapson Gomez, A. Patwa, P. Padley, Denis Gelé, J. F. Bartlett, T. Moulik, R. P. Smith, Sophie Trincaz-Duvoid, M. Juarez, F. Borcherding, W. Pritchard, V. M. Podstavkov, Armen Vartapetian, R. J. Madaras, N. M. Cason, A. Goussiou, J. Steinberg, N. Gollub, R. F. Rodrigues, P. Lebrun, E. Machado, E. Hazen, R. Angstadt, D. Graham, S. N. Ahmed, B. Clement, Mitchell Wayne, D. Bonifas, Alberto Santoro, Yu. A. Gornushkin, David Colling, N. W. Reay, C. Rotolo, Christos Leonidopoulos, D. Beutel, J. Kasper, G. Sajot, J. Kozminski, Michael Shupe, Michael Hildreth, Dmitri Tsybychev, R. L. McCarthy, B. M. Sabirov, Y. Hu, C. Boswell, L. Lobo, Sascha Caron, H. Schellman, J. M. Kohli, R. DeMaat, G. Alkhazov, O. Boeriu, Marcia Begalli, J. G.R. Lima, Lorenzo Feligioni, Y. Kulik, L. Bagby, A. Yurkewicz, D. Kau, Kevin Black, Jovan Mitrevski, D. Toback, G. D. Alexeev, G. Martin-Chassard, A. Harel, Markus Klute, Sergio F Novaes, Norbert Wermes, K. Stevenson, Chris P. Barnes, B. Lavigne, Flera Rizatdinova, Ron Lipton, B. Olivier, S. Greder, Miguel Mostafa, Douglas Smith, Meenakshi Narain, Sherry Towers, Sarah Catherine Eno, Horst Severini, Ph Gris, A. Kryemadhi, Karel Smolek, J. P. Konrath, P. Schieferdecker, D. K. Cho, A. Stone, Wendy W. Davis, R. Zitoun, V. I. Rud, S. Söldner-Rembold, S. R. Hou, Alexandre Zabi, S. Uzunyan, Tobias Golling, Yonggang Huang, J. M. Hauptman, T. Scanlon, S. Kermiche, H. T. Diehl, T. A. Bolton, P. Verdier, Shuichi Kunori, Y. Pogorelov, J. Krane, P. Houben, R. Flores, K. M. Chan, Christian Zeitnitz, Cecilia Elena Gerber, Dhiman Chakraborty, V. Anosov, M. Roco, J. Womersley, Hyun-Chul Kim, John Parsons, Yurii Maravin, Junjie Zhu, F. Nang, Andrew White, R. Rechenmacher, Nikola Makovec, Mossadek Talby, B. Gómez, Yi Jiang, Suman Bala Beri, P. Laurens, M. Michaut, Gordon Watts, A. V. Kotwal, Harrison Prosper, Y. Xie, G. Ginther, D. Butler, J. Linnemann, Vivian O'Dell, H. Weerts, H. Dong, P. Ermolov, María Teresa Martín, M. Cooke, H. da Motta, D. Zieminska, M. Diesburg, D. Gillberg, A. A. Shishkin, A. Evdokimov, S. Desai, S. Grünendahl, J. Wittlin, Kristian Harder, V. Sirotenko, A. C. Le Bihan, Rupert Leitner, S. Fuess, M. Cristetiu, B. Davies, M. Wobisch, O. V. Eroshin, Y. Song, Md. Naimuddin, E. Chi, S.D. Kalmani, Shashikant Dugad, M. Merkin, Jianming Qian, J. Ellison, A. Juste, A. Melnitchouk, Steve Reucroft, Pm Tuts, P. Bonamy, Todd Adams, B. Gobbi, C. Tolian, M. Petteni, J. D. Degenhardt, S. W. Youn, E. Von Toerne, Wagner Carvalho, P. Demine, M.A. Baturitsky, J. M. Heinmiller, Hal Evans, Thomas Ferbel, A. K.A. Maciel, M. Ahsan, Sa. Jain, Dan Green, Emmanuel Busato, Alexander Leflat, V. M. Abazov, J. Raskowski, F. Touze, Nikos Varelas, L. Groer, A. M. Magnan, Thomas G Trippe, Karl Jakobs, A. Pompoš, T. Gadfort, A. S. Turcot, Phillip Gutierrez, Greg Landsberg, Sw. Banerjee, V. Hynek, Mark Raymond Adams, D. Karmanov, Q. Xu, T. Wijnen, M. Strovink, B. Connolly, L. Christofek, H. Zheng, D. Buchholz, Bing Zhou, Luis Mendoza, Lars Sonnenschein, G. Briskin, R. Hooper, D. Mendoza, T. Kurca, Pushpalatha C Bhat, S. Zviagintsev, A. Narayanan, M. B. Przybycien, Anurag Gupta, J. Lazoflores, A. Jonckheere, Marc Weber, S. Porokhovoy, P. Hanlet, Pedrame Bargassa, M. Utes, Pierre-Antoine Delsart, A. Jenkins, Helena Malbouisson, D. Chapin, Christophe Royon, Iain Alexander Bertram, V. V. Lipaev, K. Soustruznik, Kenneth Johns, M. Kopal, R. Chiche, Sudhir Malik, N. J. Buchanan, I. Ripp-Baudot, A. Meyer, P. Nagaraj, Jonas Strandberg, N. Parua, Ia Iashvili, J. Krider, R. K. Shivpuri, D. A. Stoyanova, K. Gounder, J. R. Kalk, Reiner Hauser, V. Buescher, Andrei Nomerotski, Michael Rijssenbeek, O. Atramentov, Sissel Hansen, A. Stefanik, W. D. Shephard, M. McKenna, Sharon Hagopian, K. Papageorgiou, V. Stolin, P. Skubic, Jean-Roch Vlimant, D. Skow, M. Vaz, Rodney Walker, Brajesh C Choudhary, M. Eads, M. Jaffré, M. A.C. Cummings, Raymond Brock, N. Wilcer, M. Larwill, V. Manakov, P. Tamburello, D. Coppage, G. Geurkov, J. N. Butler, R. Rucinski, Gavin Davies, Boaz Klima, P. van Gemmeren, S. Doulas, R. McCroskey, Andre Sznajder, J. Anderson, M. Doidge, L. Coney, T. Regan, Yuri Gershtein, F. Badaud, I. Katsanos, R. Beuselinck, P. D. Grannis, H. D. Wahl, T. Yasuda, V. White, S. N. Gurzhiev, A. Nurczyk, D. Wicke, Emmanuelle Perez, A. Baden, G. C. Blazey, Y. Yen, B. Zhang, Jean-Francois Grivaz, Y. A. Yatsunenko, S. H. Ahn, Arnaud Lucotte, B. Hoeneisen, Z. Ke, Alexander Kupco, J. Steele, N. A. Naumann, P.R. Vishwanath, H. J. Willutzki, J. Olsen, Y. Scheglov, Kaushik De, P. Russo, S. Baffioni, J. D. Hobbs, I. Hall, M. J. Ferreira, J. Warchol, A. Chandra, P. de Jong, Ricardo Piegaia, Florian Beaudette, M. Arov, R. Partridge, Gilvan Alves, J. Barreto, F. Yoffe, B. Satyanarayana, I.K. Prokhorov, K. Goldmann, B. Andrieu, P. Jonsson, E. Bockenthien, G. Bernardi, Freya Blekman, R. T. Neuenschwander, R. Hance, S. Tentindo-Repond, Carl Lindenmeyer, Heriberto Castilla-Valdez, D. Bauer, L. Canal, M. Bhattacharjee, F. Charles, G. Savage, I. Blackler, M. Bowden, Emanuela Barberis, Li Jingyuan, Kazunori Hanagaki, Dongliang Zhang, X. Meng, Marcel Vreeswijk, B. Spurlock, Thomas Hebbeker, M. Mulders, E.V. Komissarov, S. Chakrabarti, Peter Love, P. Johnson, P. Rubinov, T. Nunnemann, B. Baldin, A. Koubarovsky, C. Luo, Randy Ruchti, Manas Maity, M. A. Strang, J. Molina, C. Noeding, Reinhard Schwienhorst, M. H.G. Souza, Jan Stark, P. Polosov, Seo Won Lee, Henry Lubatti, Ashok Kumar, Charles Leggett, Juan Estrada, M. C. Cousinou, Julia S. Meyer, Zeno Dixon Greenwood, D. Käfer, A. Bellavance, M. Litmaath, A. A. Mayorov, K. W. Merritt, T. Vu Anh, M. Wegner, Mansoora Shamim, Carlos Avila, S. Sumowidagdo, S.A. Kahn, H. Greenlee, Sabine Crépé-Renaudin, J. Cammin, V. Oguri, C. Schwanenberger, W. M. Van Leeuwen, O. Peters, Marumi Kado, E. Galyaev, Liyuan Han, James C. Green, M. Zdrazil, Tulika Bose, S. Yacoob, C. Franklin, D. Huffman, W. M. Lee, N. Kirsch, P. Banerjee, M. Demarteau, A. Kharchilava, Z. M. Wang, David Miller, Carmen García, H. Haggerty, J. Dyer, A.A. Nozdrin, Gregory R Snow, G. Steinbrück, Andrew Brandt, S. Rapisarda, Andre Sopczak, M. Agelou, M. Binder, A. C.S. Assis Jesus, Guennadi Borissov, L. Sawyer, Philip Baringer, George Alverson, H. E. Fisk, Sergey Kuleshov, S. Protopopescu, Lev Dudko, C. Biscarat, E. Haggard, Aran Garcia-Bellido, P. Lewis, D. Hedin, M. Zanabria, Cristina Galea, Christophe Clement, D. Denisov, Elliott Cheu, S. Fu, W. C. Fisher, S. Moua, G. Gutierrez, Hwi Dong Yoo, S. Sengupta, A. S. Ito, Kirti Ranjan, H.E. Miettinen, Carsten Hensel, S. Kesisoglou, A. A. Vorobyov, A. V. Kozelov, D. Edmunds, M. Yan, S. Jabeen, Victor Daniel Elvira, S. Burke, W. E. Cooper, J. Hays, Xiuping Li, Q. Z. Li, V. V. Tokmenin, Neeti Parashar, S. Dean, Stephan Linn, A. Lobodenko, V. A. Bodyagin, Tae Jeong Kim, R. Bernhard, D. A. Wijngaarden, M. Gao, A. Cothenet, G. Hesketh, N. Oshima, M. P. Sanders, M. Zielinski, Daniel Bloch, J. Fast, Nikolay Terentyev, N. Wallace, M. Sosebee, Gustaaf Brooijmans, Sergey Burdin, A. Sanchez-Hernandez, Robert Kehoe, J. Lu, P. J. Van Den Berg, Jessica Levêque, K. Bos, Marc Besancon, J. Temple, T. Christiansen, Bobby Samir Acharya, H. A. Neal, Sung Keun Park, D. Meder, H. C. Shankar, V. Sorín, T. R. Wyatt, V. Zutshi, V. Vysotsky, B. G. Pope, M. A. Kubantsev, B. O. Oshinowo, W. Barg, Marvin Johnson, A. A. Schukin, M. R. Krishnaswamy, Sebastian Grinstein, O. Kouznetsov, E. Flattum, R. Yamada, M. Warsinsky, O. Bardon, T. Edwards, K. Yip, N. Xuan, L. Stutte, R. D. Schamberger, Timothy Andeen, R. E. Ray, L. Lueking, K. Krempetz, C. Miao, W. L. Prado Da Silva, S. Chopra, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Evans, Gregory J Pawloski, A.S. Dyshkant, M. Buehler, Jiri Kvita, V.V. Teterin, M. Lynker, J. Yu, X. F. Song, M. V. S. Rao, N. R. Stanton, J. Torborg, N. K. Mondal, Lev Uvarov, G. Le Meur, D. Shpakov, R. Jesik, S. Beauceron, Ariel Schwartzman, Melissa Ridel, Dorothee Schaile, G. Cisko, T. C. Bacon, Alexey Ferapontov, M. Wetstein, J. Bystricky, Zhenbin Wu, J. Foglesong, J. Fagan, Robert Harrington, A. Mendes, T. Fitzpatrick, Christian Schmitt, S. Nelson, R. Gelhaus, H. E. Montgomery, C. De La Taille, P. Mättig, K. Gray, E. Popkov, M. Hohlfeld, K. Del Signore, R. Illingworth, C. Han, D. Mihalcea, C. De Oliveira Martins, Victor Golovtsov, P. N. Ratoff, Emily Nurse, Elizabeth Gallas, T. McMahon, Maksym Titov, V. E. Kuznetsov, V. Gavrilov, D. Olis, Wendy Taylor, Allan G Clark, Roger Moore, R. Goodwin, Johannes Elmsheuser, J. T. Eltzroth, P. Neustroev, Laurent Duflot, David Cutts, R. Ramirez-Gomez, R. Kwarciany, Rupinder Kaur, Daniel Whiteson, Bradley Cox, S. J. De Jong, B. Kothari, J. Coss, D. Markley, A. A. Shchukin, L. Babukhadia, Frank Fiedler, E. Kajfasz, A. Magerkurth, A. Zatserklyaniy, N.A. Russakovich, M. Das, V. N. Evdokimov, Gervasio Gomez, Michael Begel, Eduardo De Moraes Gregores, G. A. Davis, Boris Tuchming, Luiz Mundim, J. F. Renardy, Limin Wang, Marc-Andre Pleier, M. Doets, N.V. Mokhov, B. Åsman, A. P. Heinson, T. H. Burnett, G. S. Muanza, R. E. Hall, D. Fein, M. Fortner, Don Lincoln, Erich Varnes, P. W. Balm, C. Hebert, Ulrich Heintz, M. Matulik, A. Bishoff, H. Jöstlein, S. Krzywdzinski, J. Green, A. Zylberstejn, Frank Filthaut, R. Kubinski, F. Lehner, D. M. Strom, B. C.K. Casey, Y. P. Merekov, E. Shabalina, J. Guglielmo, Kyoung-Ho Kim, Andy Haas, L. Phaf, G. W. Wilson, Frederic Deliot, Christopher George Tully, Y. M. Kharzheev, Patrick Slattery, G. J. Otero y Garzón, T. Toole, S. Uvarov, A. Boehnlein, H. L. Melanson, Ivor Fleck, J. Snow, B. Quinn, J. H. Christenson, Makoto Tomoto, David H. Adams, Alice Bean, F. Canelli, N. Oliveira, Maria Elena Pol, W. Gu, A. P. Kaan, J. Gardner, R. Choate, Walter Freeman, J. Kotcher, S. Anderson, Harald Fox, M. Vaupel, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, and F. Villeneuve-Seguier

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Tevatron, 01 natural sciences, Particle detector, law.invention, Nuclear physics, Data acquisition, law, 0103 physical sciences, Fermilab, 010306 general physics, Collider, Instrumentation, Physics, 010308 nuclear & particles physics, business.industry, Detector, Electrical engineering, Particle accelerator, D0 experiment, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Physics::Accelerator Physics, High Energy Physics::Experiment, business
Abstract

The DØ experiment enjoyed a very successful data-collection run at the Fermilab Tevatron collider between 1992 and 1996. Since then, the detector has been upgraded to take advantage of improvements to the Tevatron and to enhance its physics capabilities. We describe the new elements of the detector, including the silicon microstrip tracker, central fiber tracker, solenoidal magnet, preshower detectors, forward muon detector, and forward proton detector. The uranium/liquid-argon calorimeters and central muon detector, remaining from Run I, are discussed briefly. We also present the associated electronics, triggering, and data acquisition systems, along with the design and implementation of software specific to DØ. © 2006 Elsevier B.V. All rights reserved.

Published
2016

25. Search for neutral supersymmetric higgs bosons in multijet events at s=1.96TeV

Author

M. Merkin, Adam L. Lyon, B. G. Pope, Tiefu Zhao, Sergey Burdin, K. Genser, Ulrike Blumenschein, S. P. Denisov, P. L.M. Podesta-Lerma, Raymond Brock, M. Anastasoaie, Jean-Laurent Agram, Boaz Klima, R. Beuselinck, Elizaveta Shabalina, Arnulf Quadt, Elemer Nagy, Timothy Andeen, Brad Abbott, Pierre Petroff, T. Edwards, L. Lobo, Lorenzo Feligioni, Julia S. Meyer, Kristian Harder, Alexandre Zabi, Robert Hirosky, M. Cooke, W. L. Prado Da Silva, C. Magass, Dugan O'Neil, E. G. Zverev, P. Verdier, A. Patwa, Denis Gelé, N. M. Cason, A. M. Kalinin, D. Cutts, Lev Uvarov, Wagner Carvalho, Ariel Schwartzman, M. Abolins, Greg Landsberg, Sw. Banerjee, G. Alkhazov, Jovan Mitrevski, A. Evdokimov, G. Gutierrez, Gilvan Alves, M. Petteni, Norbert Wermes, Meenakshi Narain, Sherry Towers, Kevin Black, Nikola Makovec, J. D. Degenhardt, L. Groer, S. E.K. Mattingly, Pedrame Bargassa, Emmanuel Busato, J. Lazoflores, V. V. Shary, Vivek Jain, Q. Xu, N. K. Mondal, P. Schieferdecker, H. T. Diehl, T. A. Bolton, K. Soustruznik, N. J. Buchanan, Paul Telford, Karl Jakobs, S. W. Youn, E. Von Toerne, P. Demine, Alexander Khanov, Y. Pogorelov, R. Van Kooten, A. Jenkins, Emanuela Barberis, Kazunori Hanagaki, M. D. Corcoran, Dongliang Zhang, A. Boehnlein, H. E. Fisk, A. A. Mayorov, L. Han, F. Borcherding, A. Zieminski, Tae Jeong Kim, F. Charles, T. Nunnemann, D. Coppage, J. Ellison, P. Skubic, J. Huang, A. Leflat, N. Gollub, R. A. Sidwell, G. Sajot, Armen Vartapetian, A. K.A. Maciel, Ashok Kumar, Christophe Royon, M. Ahsan, Sa. Jain, S. Fuess, T. Kurca, P. Lewis, J. Snow, Christophe Clement, Raimund Ströhmer, V. Simak, Marc Weber, A. Lounis, J. Gardner, Aran Garcia-Bellido, M. Sosebee, B. Baldin, Marvin Johnson, N. A. Naumann, Mansoora Shamim, L. S. Vertogradov, S. Greder, Sung Keun Park, T. Christiansen, H. A. Neal, D. Meder, H. D. Wahl, C. Biscarat, Freya Blekman, P. A. Rapidis, A. Meyer, J. Kotcher, S. Anderson, Sergio F Novaes, J. T. Linnemann, P. Houben, S. Reucroft, D. Bauer, P. Padley, R. F. Rodrigues, Y. Arnoud, K. Yip, N. Xuan, C. Schwanenberger, T. Vu Anh, E. De La Cruz-Burelo, M. Zdrazil, Suyong Choi, W. M. Lee, A. Kharchilava, F. Badaud, Harald Fox, H. Kim, Philip Baringer, S. Jabeen, Sarah Catherine Eno, Horst Severini, E. Galyaev, M. P. Sanders, D. Käfer, A. Bellavance, L. Lueking, Andrew Brandt, Kirti Ranjan, H.E. Miettinen, Carsten Hensel, B. Spurlock, M. Vaupel, Zeno Dixon Greenwood, J. Kasper, Chris P. Barnes, R. L. McCarthy, A. Yurkewicz, M. Kopal, Junjie Zhu, J. Fast, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, T. Yasuda, A. Jonckheere, S. Dean, Stephan Linn, A. Lobodenko, Mitchell Wayne, H. Schellman, J. M. Kohli, A. V. Kozelov, P. K. Mal, W. E. Cooper, Yann Coadou, L. Stutte, Gregory J Pawloski, A.S. Dyshkant, A. C. Le Bihan, C. Han, Andrew White, Stefan Grünendahl, Richard B. Lipton, U. Bassler, S. Robinson, Andre Sopczak, B. Andrieu, Elliott Cheu, Arnaud Duperrin, M. Michaut, Tulika Bose, M. Verzocchi, Regina Demina, T. Gadfort, Cristina Galea, C. De Oliveira Martins, D. Edmunds, K. W. Merritt, N. Oshima, V. M. Korablev, R. Hooper, V. I. Rud, Daniel Bloch, Daria Zieminska, Mossadek Talby, P.F. Ermolov, P. N. Ratoff, D. Chakraborty, Yurii Maravin, Vladimir Gavrilov, Gordon Watts, V. Sirotenko, B. Gómez, Jiri Kvita, Jong-Sung Yu, Victor Daniel Elvira, A. Baden, P. M. Tuts, S. Söldner-Rembold, R. D. Schamberger, J. F. Bartlett, G. C. Blazey, Y. Yen, W. D. Shephard, Andrei Nomerotski, R. McCroskey, Andre Sznajder, Robert Kehoe, Michael Martens, Vipin Bhatnagar, Yuri Gershtein, John Hobbs, V. Oguri, R. Yamada, A. Koubarovsky, Alberto Santoro, J. G.R. Lima, M. Agelou, Gregorio Bernardi, D. Denisov, Shashikant Dugad, M. Yan, Emmanuelle Perez, N. Lahrichi, R. Partridge, X. Zhang, Don Lincoln, O. V. Eroshin, J. Barreto, A. S. Turcot, Phillip Gutierrez, Jean-Francois Grivaz, S. H. Ahn, P. de Jong, J. Hays, Graham Wilson, Stephen Wimpenny, Erich Varnes, P. Rubinov, P. W. Balm, Heriberto Castilla-Valdez, Christian Autermann, P. Jonsson, Thomas Trefzger, Gustaaf Brooijmans, Robert Harrington, A. Mendes, M. Buehler, H. da Motta, J. Warchol, V. L. Malyshev, Martin Grunewald, B. Clément, Reinhard Schwienhorst, D. Gillberg, Thomas Hebbeker, M. Mulders, J. M. Hauptman, J. M. Heinmiller, Cecilia Elena Gerber, Hal Evans, Thomas Ferbel, Lars Sonnenschein, H. S. Mao, N. R. Stanton, Mary Beth Adams, Christos Leonidopoulos, M. Lynker, V. White, S. N. Fatakia, Alexey Ferapontov, G. Ginther, A. S. Ito, A. Melnitchouk, Jianming Qian, X. F. Song, V. M. Podstavkov, M. A. Strang, V. Hynek, M. Fortner, P. Mättig, Dorothee Schaile, Milos Lokajicek, F. Villeneuve-Seguier, M. Doidge, A. C.S. Assis Jesus, Guennadi Borissov, K. Gounder, J. R. Kalk, O. Atramentov, S. J. De Jong, B. Kothari, T. Toole, M. Hohlfeld, Wendy Taylor, G. D. Alexeev, Flera Rizatdinova, R. Zitoun, Roger Moore, R. Illingworth, A. A. Shchukin, R. J. Madaras, S. Lager, Y. Hu, S. Uvarov, M. Wegner, W. C. Fisher, Frederic Deliot, Christopher George Tully, Frank Fiedler, V. V. Lipaev, J. Womersley, E. Kajfasz, Darien Wood, Ph Gris, M. C. Cousinou, Ivor Fleck, Pushpalatha C Bhat, A. Kryemadhi, K. J. Rani, A. Alton, Nicholas John Hadley, Reiner Hauser, C. P. Buszello, W. M. Van Leeuwen, Shuichi Kunori, Emily Nurse, Elizabeth Gallas, B. Quinn, H. Weerts, Marcel Vreeswijk, J. Wittlin, Neeti Parashar, M. Binder, M. Zielinski, L. Christofek, Helena Malbouisson, D. Chapin, S. Blessing, A. Magerkurth, A. Zatserklyaniy, Y. M. Kharzheev, Makoto Tomoto, Alice Bean, S. Fu, M. Wobisch, A. Pompoš, Lev Dudko, B. S. Acharya, B. Hoeneisen, Lee Sawyer, Christian Schmitt, S. Nelson, Patrick Slattery, M. H.G. Souza, Stephanie Beauceron, Johannes Elmsheuser, P. Neustroev, R. Bernhard, D. A. Wijngaarden, Jing Li, Sascha Caron, Scott Snyder, D. Karmanov, G. Savage, G. J. Otero y Garzón, R. Jesik, Hwi Dong Yoo, S. Sengupta, K. A. Johns, Jonas Strandberg, G. Hesketh, R. Gelhaus, N. Oliveira, N. Parua, J. N. Butler, P. D. Grannis, Jessica Levêque, K. Bos, Marc Besancon, J. Temple, T. H. Burnett, S. N. Gurzhiev, M. Eads, Sudhir Malik, J. Steele, S.A. Kahn, Ia Iashvili, Jean-Roch Vlimant, Brajesh C Choudhary, M. Strovink, L. Duflot, Juan Estrada, M. Jaffré, R. K. Shivpuri, M. Demarteau, Carmen García, Alexander Kupco, V. Buescher, Viatcheslav Stolin, Rupinder Kaur, Bradley Cox, J. Molina, Karel Smolek, H. Dong, Michael A. Strauss, B. Åsman, Randy Ruchti, D. R. Claes, Ulrich Heintz, A. Cothenet, P. Lebrun, O. Boeriu, Gavin Davies, D. Buchholz, K. M. Chan, Christian Zeitnitz, Y. Kulik, D. K. Cho, A. Stone, A. Sanchez-Hernandez, Carlos Avila, S. Sumowidagdo, Tobias Golling, T. Scanlon, S. Kermiche, Suman Bala Beri, Vivian O'Dell, S. Doulas, Frank Filthaut, V. Zutshi, C. Noeding, M. Diesburg, P. Tamburello, A. Juste, Todd Adams, A. P. Heinson, Sabine Crépé-Renaudin, Q. Z. Li, Anna Goussiou, Kaushik De, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Shpakov, J. A. Parsons, D. A. Stoyanova, I. Blackler, G. S. Muanza, J. Dyer, Gregory R Snow, V. A. Bezzubov, Jan Stark, J. P. Negret, R. E. Hall, Terry Richard Wyatt, Michael Begel, Eduardo De Moraes Gregores, Henry Lubatti, G. A. Davis, Boris Tuchming, Limin Wang, Marc-Andre Pleier, J. Cammin, R. P. Smith, Sophie Trincaz-Duvoid, S. Krzywdzinski, J. Kozminski, Michael Hildreth, D. Kau, B. Davies, A. M. Magnan, A. Harel, K. Stevenson, Sharon Hagopian, S. Uzunyan, Y. A. Yatsunenko, Harrison Prosper, R. Piegaia, F. Lehner, H. Greenlee, S. Desai, D. M. Strom, B. C.K. Casey, A. Bross, S. J. Hong, Serban Protopopescu, V. M. Abazov, Nikos Varelas, Bing Zhou, Andy Haas, J. Torborg, Iain Alexander Bertram, Michael Rijssenbeek, D. Wicke, V. N. Evdokimov, I. Ripp-Baudot, I. Hall, A. Chandra, S. Chakrabarti, Peter Love, S. Yacoob, George Alverson, D. Hedin, S. Kesisoglou, Universidad de Buenos Aires, Centro Brasileiro de Pesquisas Físicas, Universidade do Estado do Rio de Janeiro (UERJ), Universidade Estadual Paulista (UNESP), University of Alberta, Simon Fraser University, York University, McGill University, Institute of High Energy Physics, University of Science and Technology of China, Universidad de los Andes, Charles University, Czech Technical University, Center for Particle Physics, Universidad San Francisco de Quito, Université Blaise Pascal, IN2P3-CNRS, Université de la Méditerranée, Universités Paris VI and VII, CEA, Université Louis Pasteur, Université de Haute Alsace, Université Claude Bernard, RWTH Aachen, Universität Bonn, Universität Freiburg, Universität Mainz, Ludwig-Maximilians-Universität München, University of Wuppertal, Panjab University, Delhi University, Tata Institute of Fundamental Research, University College Dublin, Korea University, CINVESTAV, FOM-Institute NIKHEF and University of Amsterdam/NIKHEF, Radboud University Nijmegen/NIKHEF, Joint Institute for Nuclear Research, Institute for Theoretical and Experimental Physics, Moscow State University, Institute for High Energy Physics, Petersburg Nuclear Physics Institute, Lund University, Royal Institute of Technology and Stockholm University, Uppsala University, Lancaster University, Imperial College, University of Manchester, University of Arizona, Lawrence Berkeley National Laboratory and University of California, California State University, University of California, Florida State University, Fermi National Accelerator Laboratory, University of Illinois at Chicago, Northern Illinois University, Northwestern University, Indiana University, University of Notre Dame, Iowa State University, University of Kansas, Kansas State University, Louisiana Tech University, University of Maryland, Boston University, Northeastern University, University of Michigan, Michigan State University, University of Mississippi, University of Nebraska, Princeton University, Columbia University, University of Rochester, State University of New York, Brookhaven National Laboratory, Langston University, University of Oklahoma, Brown University, University of Texas, Southern Methodist University, Rice University, University of Virginia, University of Washington, and University of Zurich

Subjects
Quark, Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, General Physics and Astronomy, Supersymmetry, 01 natural sciences, Nuclear physics, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, Fermilab, 010306 general physics, Phenomenology (particle physics), Minimal Supersymmetric Standard Model, Boson
Abstract

Made available in DSpace on 2022-04-28T20:06:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-10-07 We have performed a search for neutral Higgs bosons produced in association with bottom quarks in pp collisions, using 260pb-1 of data collected with the D0 detector in Run II of the Fermilab Tevatron Collider. The cross sections for these processes are enhanced in many extensions of the standard model (SM), such as in its minimal supersymmetric extension at large tanâ□¡Î. The results of our analysis agree with expectations from the SM, and we use our measurements to set upper limits on the production of neutral Higgs bosons in the mass range of 90 to 150 GeV. © 2005 The American Physical Society. Universidad de Buenos Aires, Buenos Aires LAFEX Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro Universidade do Estado do Rio de Janeiro, Rio de Janeiro Instituto de Física Teórica Universidade Estadual Paulista, São Paulo University of Alberta, Edmonton, AB Simon Fraser University, Burnaby, BC York University, Toronto, ON McGill University, Montreal, QC Institute of High Energy Physics, Beijing University of Science and Technology of China, Hefei Universidad de los Andes, Bogotá, Colombia Center for Particle Physics Charles University, Prague Czech Technical University, Prague Institute of Physics Academy of Sciences Center for Particle Physics, Prague Universidad San Francisco de Quito, Quito Laboratoire de Physique Corpusculaire IN2P3-CNRS Université Blaise Pascal, Clermont-Ferrand Laboratoire de Physique Subatomique et de Cosmologie IN2P3-CNRS, Universite de Grenoble 1, Grenoble CPPM IN2P3-CNRS Université de la Méditerranée, Marseille Laboratoire de l'Accélérateur Linéaire IN2P3-CNRS, Orsay LPNHE IN2P3-CNRS Universités Paris VI and VII, Paris DAPNIA/Service de Physique des Particules CEA, Saclay IReS IN2P3-CNRS Université Louis Pasteur, Strasbourg Université de Haute Alsace, Mulhouse Institut de Physique Nucléaire de Lyon IN2P3-CNRS Université Claude Bernard, Villeurbanne III. Physikalisches Institut A RWTH Aachen, Aachen Physikalisches Institut Universität Bonn, Bonn Physikalisches Institut Universität Freiburg, Freiburg Institut für Physik Universität Mainz, Mainz Ludwig-Maximilians-Universität München, München Fachbereich Physik University of Wuppertal, Wuppertal Panjab University, Chandigarh Delhi University, Delhi Tata Institute of Fundamental Research, Mumbai University College Dublin, Dublin Korea Detector Laboratory Korea University, Seoul CINVESTAV, Mexico City FOM-Institute NIKHEF and University of Amsterdam/NIKHEF, Amsterdam Radboud University Nijmegen/NIKHEF, Nijmegen Joint Institute for Nuclear Research, Dubna Institute for Theoretical and Experimental Physics, Moscow Moscow State University, Moscow Institute for High Energy Physics, Protvino Petersburg Nuclear Physics Institute, St. Petersburg Lund University, Lund Royal Institute of Technology and Stockholm University, Stockholm Uppsala University, Uppsala Lancaster University, Lancaster Imperial College, London University of Manchester, Manchester University of Arizona, Tucson, AZ 85721 Lawrence Berkeley National Laboratory and University of California, Berkeley, CA 94720 California State University, Fresno, CA 93740 University of California, Riverside, CA 92521 Florida State University, Tallahassee, FL 32306 Fermi National Accelerator Laboratory, Batavia, IL 60510 University of Illinois at Chicago, Chicago, IL 60607 Northern Illinois University, DeKalb, IL 60115 Northwestern University, Evanston, IL 60208 Indiana University, Bloomington, IN 47405 University of Notre Dame, Notre Dame, IN 46556 Iowa State University, Ames, IA 50011 University of Kansas, Lawrence, KS 66045 Kansas State University, Manhattan, KS 66506 Louisiana Tech University, Ruston, LA 71272 University of Maryland, College Park, MD 20742 Boston University, Boston, MA 02215 Northeastern University, Boston, MA 02115 University of Michigan, Ann Arbor, MI 48109 Michigan State University, East Lansing, MI 48824 University of Mississippi, Mississippi 38677 University of Nebraska, Lincoln, NE 68588 Princeton University, Princeton, NJ 08544 Columbia University, New York, NY 10027 University of Rochester, Rochester, NY 14627 State University of New York, Stony Brook, NY 11794 Brookhaven National Laboratory, Upton, NY 11973 Langston University, Langston, OK 73050 University of Oklahoma, Norman, OK 73019 Brown University, Providence, RI 02912 University of Texas, Arlington, TX 76019 Southern Methodist University, Dallas, TX 75275 Rice University, Houston, TX 77005 University of Virginia, Charlottesville, VA 22901 University of Washington, Seattle, WA 98195 University of Zurich, Zurich Instituto de Física Teórica Universidade Estadual Paulista, São Paulo

Published
2016
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26. 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
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27. 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

28. Erratum to: 'Search for particles decaying into a Z boson and a photon in pp¯ collisions at s=1.96 TeV' [Phys. Lett. B 641 (2006) 415]

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.-L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, F. Borcherding, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, J. Estrada, H. Evans, A. Evdokimov, V.N. Evdokimov, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, K. Gounder, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, A. Kryemadhi, S. Krzywdzinski, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lager, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, R. McCarthy, R. McCroskey, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, K. Ranjan, P.A. Rapidis, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, K. Stevenson, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, Z. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, 0103 physical sciences, High Energy Physics::Experiment, 010303 astronomy & astrophysics, 01 natural sciences
Abstract

Search for particles decaying into a Z boson and a photon in collisions p (p)over-bar at root s = 1.96 TeV (vol 641, pg 415, 2006)

Published
2009
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29. Measurement of the ratios of the Z/γ∗+⩾n jet production cross sections to the total inclusive Z/γ∗ cross section in pp¯ collisions at s=1.96 TeV

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, D. Chakraborty, K.M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, R. McCarthy, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Tevatron, Jet (particle physics), 01 natural sciences, 7. Clean energy, Hadronization, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Center of mass, 010306 general physics, Parton shower, Boson
Abstract

We present a study of events with Z bosons and jets produced at the Fermilab Tevatron Collider in ppbar collisions at a center of mass energy of 1.96 TeV. The data sample consists of nearly 14,000 Z/G* -> e+e- candidates corresponding to the integrated luminosity of 340 pb-1 collected using the D0 detector. Ratios of the Z/G* + >= n jet cross sections to the total inclusive Z/G* cross section have been measured for n = 1 to 4 jet events. Our measurements are found to be in good agreement with a next-to-leading order QCD calculation and with a tree-level QCD prediction with parton shower simulation and hadronization.

Published
2008
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30. Erratum to: 'Measurement of the isolated photon cross section in pp¯ collisions at s=1.96 TeV' [Phys. Lett. B 639 (2006) 151]

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, E. Aguilo, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, L.S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, M. Arthaud, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, S. Banerjee, P. Banerjee, E. Barberis, A.-F. Barfuss, P. Bargassa, P. Baringer, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, C. Biscarat, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, A. Boehnlein, D. Boline, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, K. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, T. Christoudias, S. Cihangir, D. Claes, C. Clément, B. Clément, Y. Coadou, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, G. Davies, K. De, S.J. de Jong, P. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, D. Gelé, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, J. Guo, F. Guo, P. Gutierrez, G. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, S. Hossain, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.R. Kalk, J.M. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, M. Kirsch, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, B. Kothari, A.V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, F. Lacroix, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, J. Lellouch, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, L. Li, S.M. Lietti, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Y. Liu, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, A.L. Lyon, A.K.A. Maciel, D. Mackin, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, B. Martin, R. McCarthy, A. Melnitchouk, A. Mendes, L. Mendoza, P.G. Mercadante, M. Merkin, K.W. Merritt, J. Meyer, A. Meyer, M. Michaut, T. Millet, J. Mitrevski, J. Molina, R.K. Mommsen, N.K. Mondal, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, H. Nilsen, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, C. Ochando, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, B. Penning, P.M. Perea, K. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, P. Polozov, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, A. Rakitine, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, T. Schliephake, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, R.K. Shivpuri, D. Shpakov, V. Siccardi, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, R.P. Smith, J. Snow, G.R. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, E. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, A. Tanasijczuk, W. Taylor, P. Telford, J. Temple, B. Tiller, F. Tissandier, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, D. Tsybychev, B. Tuchming, C. Tully, P.M. Tuts, R. Unalan, S. Uvarov, L. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, B. van Eijk, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, P. Vokac, E. Von Toerne, M. Voutilainen, M. Vreeswijk, R. Wagner, H.D. Wahl, L. Wang, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, G. Weber, H. Weerts, A. Wenger, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, J. Yu, C. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, L. Zivkovic, V. Zutshi, and E.G. Zverev

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Cross section (physics), Photon, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract

Measurement of the isolated photon cross section in p(p)over-bar collisions at root s = 1.96 TeV (vol 639, pg 151, 2006)

Published
2008
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31. Zγ production and limits on anomalous ZZγ and Zγγ couplings in pp¯ collisions at s=1.96 TeV

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, E. Aguilo, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, L.S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, M. Arthaud, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, A.-F. Barfuss, P. Bargassa, P. Baringer, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, C. Biscarat, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, A. Boehnlein, D. Boline, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. Chan, K.M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, T. Christoudias, S. Cihangir, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, G. Davies, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, D. Gelé, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, S. Hossain, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, M. Kirsch, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, B. Kothari, A.V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, J. Lellouch, V. Lesne, J. Leveque, P. Lewis, J. Li, L. Li, Q.Z. Li, S.M. Lietti, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Y. Liu, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, A.L. Lyon, A.K.A. Maciel, D. Mackin, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, B. Martin, R. McCarthy, A. Melnitchouk, A. Mendes, L. Mendoza, P.G. Mercadante, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, T. Millet, J. Mitrevski, J. Molina, R.K. Mommsen, N.K. Mondal, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, H. Nilsen, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, C. Ochando, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, K. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, A. Rakitine, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, T. Schliephake, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, R.K. Shivpuri, D. Shpakov, V. Siccardi, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, A. Tanasijczuk, W. Taylor, P. Telford, J. Temple, B. Tiller, F. Tissandier, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, D. Tsybychev, B. Tuchming, C. Tully, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, B. van Eijk, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, E. Von Toerne, M. Voutilainen, M. Vreeswijk, R. Wagner, H.D. Wahl, L. Wang, M.H.L. S Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, H. Weerts, A. Wenger, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, L. Zivkovic, V. Zutshi, and E.G. Zverev

Subjects
Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, Muon, Large Hadron Collider, 010308 nuclear & particles physics, Tevatron, 01 natural sciences, 7. Clean energy, law.invention, Standard Model, Nuclear physics, law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Lepton
Abstract

We present a study of eey and mu mu gamma events using 1109 (1009) pb-(1) of data in the electron (muon) channel, respectively. These data were collected with the DO detector at the Fermilab Tevatron pp collider at Is = 1.96 TeV. Having observed 453 (515) candidates in the eey (jtAy) final state, we measure the Z gamma production cross section for a photon with transverse energy ET > 7 GeV, separation between the photon and leptons Delta Rey > 0.7, and invariant mass of the di-lepton pair Mee > 30 GeV/(2)(c), to be 4.96 0.30(stat. + syst.) zE 0.30(lumi.) pb, in agreement with the Standard Model prediction of 4.74 0.22 pb. This is the most precise Zy cross section measurement at a hadron collider. We set limits on anomalous trilinear Zyy and ZZy gauge boson couplings of -0.085 < h(30)(y) < 0.084, -0.0053 < h(40)(y) < 0.0054 and -0.083 < h(30)(Z) < 0.082, 30 40 30 -0.0053 < h(40)(Z) < 0.0054 at the 95% C.L. for the form-factor scale A = 1.2 TeV. 40 .

Published
2007
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32. Search for single production of scalar leptoquarks in pp¯ collisions decaying into muons and quarks with the D0 detector

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, E. Aguilo, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, L.S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, A. Boehnlein, D. Boline, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, T. Christiansen, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, V. Gavrilov, A. Gay, P. Gay, W. Geist, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, L. Li, Q.Z. Li, S.M. Lietti, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, R. McCarthy, A. Melnitchouk, A. Mendes, L. Mendoza, P.G. Mercadante, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, R.K. Mommsen, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, C. Ochando, V. Oguri, N. Oliveira, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, K. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, B. van Eijk, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Physics, Quark, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Scalar (mathematics), Lambda, 01 natural sciences, Upper and lower bounds, Nuclear physics, Pair production, 0103 physical sciences, High Energy Physics::Experiment, Leptoquark, 010306 general physics
Abstract

We report on a search for second generation leptoquarks LQ_2 which decay into a muon plus quark in p\bar{p} collisions at a center-of-mass energy of sqrt{s} = 1.96 TeV in the D0 detector using an integrated luminosity of about 300 pb-1. No evidence for a leptoquark signal is observed and an upper bound on the product of the cross section for single leptoquark production times branching fraction beta into a quark and a muon was determined for second generation scalar leptoquarks as a function of the leptoquark mass. This result has been combined with a previously published D0 search for leptoquark pair production to obtain leptoquark mass limits as a function of the leptoquark-muon-quark coupling, lambda. Assuming lambda=1, lower limits on the mass of a second generation scalar leptoquark are m{LQ_2}>274 GeV and m{LQ_2}>226 GeV for beta=1 and beta=1/2, respectively.

Published
2007
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33. Search for the pair production of scalar top quarks in the acoplanar charm jet final state in collisions at

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, E. Aguilo, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, L.S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, F. Couderc, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, J. Elmsheuser, V.D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, W. Geist, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, L. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, R. McCarthy, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, R.K. Mommsen, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, C. Ochando, V. Oguri, N. Oliveira, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, B. van Eijk, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, Supersymmetry, 01 natural sciences, 7. Clean energy, Lightest Supersymmetric Particle, Standard Model, law.invention, Nuclear physics, Pair production, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Energy (signal processing)
Abstract

A search for the pair production of scalar top quarks, {bar t}, has been performed in 360 pb{sup -1} of data from p{bar p} collisions at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron collider. The {bar t} decay mode considered is {bar t} {yields} c{bar {chi}}{sub 1}{sup 0}, where {bar {chi}}{sub 1}{sup 0} is the lightest supersymmetric particle. The topology analyzed therefore consists of a pair of acoplanar heavy-flavor jets with missing transverse energy. The data show good agreement with the standard model expectation, and a 95% C.L. exclusion domain in the (m{sub {tilde t}}, m{sub {tilde {chi}}{sub 1}{sup 0}}) plane has been determined, extending the domain excluded by previous experiments.

Published
2007
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34. Search for a Higgs boson produced in association with a Z boson

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, E. Aguilo, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, L.S. Ancu, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, M. Arthaud, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, A.-F. Barfuss, P. Bargassa, P. Baringer, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, C. Biscarat, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, A. Boehnlein, D. Boline, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. Chan, K.M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, T. Christoudias, S. Cihangir, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, G. Davies, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V.N. Evdokimov, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, D. Gelé, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, S. Hossain, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, M. Kirsch, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, B. Kothari, A.V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, J. Lellouch, V. Lesne, J. Leveque, P. Lewis, J. Li, L. Li, Q.Z. Li, S.M. Lietti, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Y. Liu, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, A.L. Lyon, A.K.A. Maciel, D. Mackin, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, B. Martin, R. McCarthy, A. Melnitchouk, A. Mendes, L. Mendoza, P.G. Mercadante, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, T. Millet, J. Mitrevski, J. Molina, R.K. Mommsen, N.K. Mondal, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, P. Neustroev, H. Nilsen, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, C. Ochando, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, K. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, C. Potter, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, A. Rakitine, M.S. Rangel, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, T. Schliephake, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, R.K. Shivpuri, D. Shpakov, V. Siccardi, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, S. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, A. Tanasijczuk, W. Taylor, P. Telford, J. Temple, B. Tiller, F. Tissandier, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, D. Tsybychev, B. Tuchming, C. Tully, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, B. van Eijk, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, E. Von Toerne, M. Voutilainen, M. Vreeswijk, R. Wagner, H.D. Wahl, L. Wang, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, H. Weerts, A. Wenger, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, L. Zivkovic, V. Zutshi, and E.G. Zverev

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, 7. Clean energy, 01 natural sciences, law.invention, Standard Model, law, Experimental High Energy Physics, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Boson
Abstract

We describe a search for the Standard Model Higgs boson with a mass of 105 GeV/c(2) to 145 GeV/c(2) in data corresponding to an integrated luminosity of approximately 450 pb(-1) collected with the D phi detector at the Fermilab Tevatron p (p) over bar collider at a center-of-mass energy of 1.96 TeV. The Higgs boson is required to be produced in association with a Z boson, and the Z boson is required to decay to either electrons or muons with the Higgs boson decaying to a b (b) over bar pair. The data are well described by the expected background, leading to 95% confidence level cross section upper limits sigma (p (p) over bar -> ZH) x B(H -> b (b) over bar) in the range of 3.1 pb to 4.4 pb.

Published
2007
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35. Search for particles decaying into a Z boson and a photon in pp¯ collisions at s=1.96 TeV

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.-L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, F. Borcherding, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, J. Estrada, H. Evans, A. Evdokimov, V.N. Evdokimov, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, K. Gounder, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, A. Kryemadhi, S. Krzywdzinski, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lager, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, R. McCarthy, R. McCroskey, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, K. Ranjan, P.A. Rapidis, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, K. Stevenson, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, Z. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Photon, 010308 nuclear & particles physics, Branching fraction, Tevatron, 7. Clean energy, 01 natural sciences, law.invention, Cross section (physics), law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Invariant (mathematics), 010306 general physics, Collider
Abstract

We present the results of a search for a new particle X produced in p p ¯ collisions at s = 1.96 TeV and subsequently decaying to Zγ. The search uses 0.3 fb−1 of data collected with the DO detector at the Fermilab Tevatron Collider. We set limits on the production cross section times the branching fraction σ ( p p ¯ → X ) × B ( X → Z γ ) that range from 0.4 to 3.5 pb at the 95% C.L. for X with invariant masses between 100 and 1000 GeV / c 2 , over a wide range of X decay widths.

Published
2006
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36. Search for W′ boson production in the W′→tb¯ decay channel

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.-L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, G. Borissov, K. Bos, E.E. Boos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, J. Estrada, H. Evans, A. Evdokimov, V.N. Evdokimov, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lager, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, R. McCarthy, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, M. Perfilov, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Quark, Physics, Nuclear and High Energy Physics, Gauge boson, Top quark, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Scalar boson, 7. Clean energy, 01 natural sciences, Bottom quark, Standard Model, Nuclear physics, W and Z bosons, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Boson
Abstract

We present a search for the production of a new heavy gauge boson W' that decays to a top quark and a bottom quark. We have analyzed 230 pb(-1) of data collected with the DO detector at the Fermilab Tevatron collider at a center-of-mass energy of 1.96 TeV. No significant excess of events above the standard model expectation is found in any region of the final state invariant mass distribution. We set upper limits on the production cross section of W' bosons times branching ratio to top quarks at the 95% confidence level for several different W, boson masses. We exclude masses between 200 and 610 GeV for a W' boson with standard-model-like couplings, between 200 and 630 GeV for a W, boson with right-handed couplings that is allowed to decay to both leptons and quarks, and between 200 and 670 GeV for a W' boson with right-handed couplings that is only allowed to decay to quarks.

Published
2006
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37. Search for scalar leptoquarks in the acoplanar jet topology in pp¯ collisions at s=1.96 TeV

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.-L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, M.S. Anzelc, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J.A. Benitez, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, F. Chevallier, D.K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, J. Estrada, H. Evans, A. Evdokimov, V.N. Evdokimov, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P.D. Grannis, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R.E. Hall, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, N. Khalatyan, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, M.H. Kirby, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lager, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, R. McCarthy, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, M. Mulhearn, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, R. Otec, G.J. Otero y Garzón, M. Owen, P. Padley, N. Parashar, S.-J. Park, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, K. Peters, P. Pétroff, M. Petteni, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, A.V. Popov, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, K. Ranjan, P.N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, V. Siccardi, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V.V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, P. Vint, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H.D. Wahl, L. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, K. Yip, H.D. Yoo, S.W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, Topology, 01 natural sciences, Standard Model, law.invention, Nuclear physics, law, 0103 physical sciences, High Energy Physics::Experiment, Leptoquark, Fermilab, Neutrino, 010306 general physics, Collider, Lepton
Abstract

A search for leptoquarks has been performed in 310 pb{sup -1} of data from p{bar p} collisions at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron Collider. The topology analyzed consists of acoplanar jets with missing transverse energy. The data show good agreement with standard model expectations, and a lower mass limit of 136 GeV has been set at the 95% C.L. for a scalar leptoquark decaying exclusively into a quark and a neutrino.

Published
2006
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38. Measurement of the isolated photon cross section in pp¯ collisions at s=1.96 TeV

Author

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, T. Adams, M. Agelou, J.-L. Agram, S.H. Ahn, M. Ahsan, G.D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G.A. Alves, M. Anastasoaie, T. Andeen, S. Anderson, B. Andrieu, Y. Arnoud, M. Arov, A. Askew, B. Åsman, A.C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, F. Badaud, A. Baden, L. Bagby, B. Baldin, P.W. Balm, D.V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J.F. Bartlett, U. Bassler, D. Bauer, A. Bean, S. Beauceron, M. Begalli, M. Begel, A. Bellavance, S.B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V.A. Bezzubov, P.C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K.M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, U. Blumenschein, A. Boehnlein, O. Boeriu, T.A. Bolton, F. Borcherding, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N.J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T.H. Burnett, E. Busato, C.P. Buszello, J.M. Butler, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B.C.K. Casey, N.M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K.M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, D.K. Cho, S. Choi, B. Choudhary, T. Christiansen, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W.E. Cooper, D. Coppage, M. Corcoran, M.-C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, H. da Motta, A. Das, M. Das, B. Davies, G. Davies, G.A. Davis, K. De, P. de Jong, S.J. de Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, S. Dean, J.D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, P. Demine, D. Denisov, S.P. Denisov, S. Desai, H.T. Diehl, M. Diesburg, M. Doidge, H. Dong, S. Doulas, L.V. Dudko, L. Duflot, S.R. Dugad, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, T. Edwards, J. Ellison, J. Elmsheuser, V.D. Elvira, S. Eno, P. Ermolov, J. Estrada, H. Evans, A. Evdokimov, V.N. Evdokimov, J. Fast, S.N. Fatakia, L. Feligioni, A.V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, I. Fleck, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C.F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, J. Gardner, V. Gavrilov, A. Gay, P. Gay, D. Gelé, R. Gelhaus, C.E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, T. Golling, N. Gollub, B. Gómez, K. Gounder, A. Goussiou, P.D. Grannis, S. Greder, H. Greenlee, Z.D. Greenwood, E.M. Gregores, G. Grenier, Ph. Gris, J.-F. Grivaz, S. Grünendahl, M.W. Grünewald, G. Gutierrez, P. Gutierrez, A. Haas, N.J. Hadley, S. Hagopian, J. Haley, I. Hall, R.E. Hall, C. Han, L. Han, K. Hanagaki, K. Harder, A. Harel, R. Harrington, J.M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J.G. Hegeman, J.M. Heinmiller, A.P. Heinson, U. Heintz, C. Hensel, G. Hesketh, M.D. Hildreth, R. Hirosky, J.D. Hobbs, B. Hoeneisen, M. Hohlfeld, S.J. Hong, R. Hooper, P. Houben, Y. Hu, J. Huang, V. Hynek, I. Iashvili, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, S. Jain, V. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A.M. Kalinin, J.M. Kalk, J.R. Kalk, D. Karmanov, J. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, S. Kesisoglou, A. Khanov, A. Kharchilava, Y.M. Kharzheev, D. Khatidze, H. Kim, T.J. Kim, B. Klima, J.M. Kohli, J.-P. Konrath, M. Kopal, V.M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A.V. Kozelov, J. Kozminski, A. Kryemadhi, S. Krzywdzinski, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, S. Lager, S. Lammers, G. Landsberg, J. Lazoflores, A.-C. Le Bihan, P. Lebrun, W.M. Lee, A. Leflat, F. Lehner, C. Leonidopoulos, V. Lesne, J. Leveque, P. Lewis, J. Li, Q.Z. Li, J.G.R. Lima, D. Lincoln, S.L. Linn, J. Linnemann, V.V. Lipaev, R. Lipton, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H.J. Lubatti, L. Lueking, M. Lynker, A.L. Lyon, A.K.A. Maciel, R.J. Madaras, P. Mättig, C. Magass, A. Magerkurth, A.-M. Magnan, N. Makovec, P.K. Mal, H.B. Malbouisson, S. Malik, V.L. Malyshev, H.S. Mao, Y. Maravin, M. Martens, S.E.K. Mattingly, R. McCarthy, R. McCroskey, D. Meder, A. Melnitchouk, A. Mendes, L. Mendoza, M. Merkin, K.W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, J. Mitrevski, J. Molina, N.K. Mondal, J. Monk, R.W. Moore, T. Moulik, G.S. Muanza, M. Mulders, L. Mundim, Y.D. Mutaf, E. Nagy, M. Naimuddin, M. Narain, N.A. Naumann, H.A. Neal, J.P. Negret, S. Nelson, P. Neustroev, C. Noeding, A. Nomerotski, S.F. Novaes, T. Nunnemann, E. Nurse, V. O'Dell, D.C. O'Neil, G. Obrant, V. Oguri, N. Oliveira, N. Oshima, G.J. Otero y Garzón, P. Padley, N. Parashar, S.K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P.M. Perea, E. Perez, P. Pétroff, M. Petteni, R. Piegaia, M.-A. Pleier, P.L.M. Podesta-Lerma, V.M. Podstavkov, Y. Pogorelov, M.-E. Pol, A. Pompoš, B.G. Pope, W.L. Prado da Silva, H.B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, K.J. Rani, K. Ranjan, P.A. Rapidis, P.N. Ratoff, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R.F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, V.I. Rud, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R.D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A.A. Shchukin, W.D. Shephard, R.K. Shivpuri, D. Shpakov, R.A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R.P. Smith, K. Smolek, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, K. Stevenson, V. Stolin, A. Stone, D.A. Stoyanova, J. Strandberg, M.A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, M. Tomoto, T. Toole, I. Torchiani, S. Towers, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, A.S. Turcot, P.M. Tuts, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P.J. van den Berg, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, A. Vartapetian, I.A. Vasilyev, M. Vaupel, P. Verdier, L.S. Vertogradov, M. Verzocchi, F. Villeneuve-Seguier, J.-R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, T. Vu Anh, H.D. Wahl, L. Wang, J. Warchol, G. Watts, M. Wayne, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, V. White, D. Wicke, D.A. Wijngaarden, G.W. Wilson, S.J. Wimpenny, M. Wobisch, J. Womersley, D.R. Wood, T.R. Wyatt, Y. Xie, Q. Xu, N. Xuan, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y.A. Yatsunenko, Y. Yen, K. Yip, H.D. Yoo, S.W. Youn, J. Yu, A. Yurkewicz, A. Zabi, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, Z. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, and E.G. Zverev

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Tevatron, Perturbative QCD, 7. Clean energy, 01 natural sciences, Nuclear physics, Transverse plane, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics
Abstract

The cross section for the inclusive production of isolated photons has been measured in p anti-p collisions at sqrt{s}=1.96 TeV with the D0 detector at the Fermilab Tevatron Collider. The photons span transverse momenta 23 to 300 GeV and have pseudorapidity |eta

Published
2006
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39. Measurement of B(t→Wb)/B(t→Wq) at s=1.96TeV

Author

V. Simak, F. Villeneuve-Seguier, Vipin Bhatnagar, E. De La Cruz-Burelo, R. Partridge, Christian Autermann, V. L. Malyshev, V. V. Tokmenin, P. Padley, H. S. Mao, R. F. Rodrigues, B. Åsman, R. Van Kooten, V. M. Abazov, M. D. Corcoran, G. Obrant, V. Shary, Mitchell Wayne, H. Schellman, J. M. Kohli, A. C.S. Assis Jesus, Guennadi Borissov, H. A. Neal, D. Meder, J. T. Linnemann, K. Yip, N. Xuan, Stefan Grünendahl, D. Brown, Christian Schmitt, S. Nelson, M. H.G. Souza, W. C. Fisher, P. Verdier, K. J. Rani, A. Alton, M. Merkin, Robert Hirosky, K. W. Merritt, J. F. Bartlett, P. Banerjee, Armen Vartapetian, A. P. Heinson, G. S. Muanza, Stephen Wimpenny, Iain Alexander Bertram, R. Gelhaus, Michael Rijssenbeek, D. V. Bandurin, D. A. Stoyanova, Robert Kehoe, M. C. Cousinou, Marco Verzocchi, C. Magass, Dugan O'Neil, E. G. Zverev, A. Patwa, Mark Owen, Denis Gelé, Raymond Brock, Boaz Klima, M. Das, Sascha Caron, R. Unalan, L. Stutte, Gregory J Pawloski, L. Han, A. Zieminski, A.S. Dyshkant, Dmitri Tsybychev, R. L. McCarthy, I. Katsanos, N. M. Cason, M. Agelou, A. M. Magnan, M. Yan, S. Fu, R. Beuselinck, F. Borcherding, R. W. Moore, F. Lehner, T. Edwards, Martin Grunewald, A. M. Kalinin, Mossadek Talby, R. E. Hall, B. Gómez, Shashikant Dugad, A. Yurkewicz, Jiri Kvita, P. A. Rapidis, S. Burke, D. A. Wijngaarden, Marcia Begalli, M. Zielinski, Milos Lokajicek, L. Bagby, Christophe Royon, N. Gollub, A. Evdokimov, Terry Richard Wyatt, P. K. Mal, V. N. Evdokimov, I. Hall, M. Kopal, A. Chandra, Jovan Mitrevski, M. A. Strang, G. Hesketh, Norbert Wermes, Julia S. Meyer, Meenakshi Narain, Sherry Towers, J. Haley, Suyong Choi, Emily Nurse, G. Sajot, Elizabeth Gallas, V. I. Rud, S. Söldner-Rembold, Darien Wood, V. A. Bezzubov, M. Strovink, R. A. Sidwell, J. P. Negret, G. Gutierrez, R. P. Smith, P. J. Van Den Berg, Jessica Levêque, K. Bos, Marc Besancon, J. Temple, L. S. Vertogradov, Michael Begel, Sergey Burdin, M. Eads, K. M. Chan, Christian Zeitnitz, Lev Uvarov, Y. Hu, Gilvan Alves, Emanuela Barberis, M. Abolins, Sophie Trincaz-Duvoid, Nicholas John Hadley, C. P. Buszello, Kazunori Hanagaki, Dongliang Zhang, H. D. Wahl, Nikola Makovec, Rupinder Kaur, Bradley Cox, S. P. Denisov, J. D. Degenhardt, S. Lammers, Y. Arnoud, B. Davies, H. Weerts, J. Kozminski, S. Blessing, P. Renkel, Michael Hildreth, Eduardo De Moraes Gregores, S. E.K. Mattingly, Graham Wilson, Heriberto Castilla-Valdez, H. da Motta, S. Krzywdzinski, M. Petteni, J. Lazoflores, D. Edmunds, M. Binder, W. E. Cooper, Scott Snyder, D. Bauer, F. Badaud, Kevin Black, Cris W. Barnes, Yann Coadou, D. Kau, P.F. Ermolov, D. Gillberg, K. Stevenson, N. K. Mondal, P. Schieferdecker, H. T. Diehl, T. A. Bolton, Lev Dudko, Mikko Voutilainen, W. D. Shephard, R. McCroskey, Andre Sznajder, M. Cooke, Y. Pogorelov, S. Uzunyan, Karl Jakobs, R. K. Shivpuri, C. Noeding, A. S. Ito, A. Melnitchouk, A. Sanchez-Hernandez, A. Boehnlein, M. Sosebee, J. M. Kalk, Arnaud Duperrin, Yuri Gershtein, G. A. Davis, Boris Tuchming, Sharon Hagopian, Gregorio Bernardi, Emmanuelle Perez, A. K.A. Maciel, D. Denisov, W. L. Prado Da Silva, S. Greder, V. M. Korablev, Harrison Prosper, Y. Xie, Amnon Harel, S. Desai, V. Hynek, Jeroen Hegeman, J. Ellison, Jong-Sung Yu, Hwi Dong Yoo, B. Vachon, D. R. Claes, V. Zutshi, Gavin Davies, W. M. Van Leeuwen, C. Schwanenberger, M. Ahsan, J. M. Heinmiller, Sa. Jain, S. Fuess, Jun Guo, Q. Z. Li, Hal Evans, Thomas Ferbel, H. Greenlee, D. M. Strom, S. Doulas, L. Berntzon, Ashok Kumar, T. Kurca, S. Sengupta, Freya Blekman, Luiz Mundim, V. V. Lipaev, Lars Sonnenschein, M. S. Anzelc, Sarah Catherine Eno, Horst Severini, Marc Weber, S. Chakrabarti, Peter Love, E. Galyaev, B. C.K. Casey, V. Lesne, I. Ripp-Baudot, A. Meyer, S. J. Hong, Jonas Strandberg, N. Parua, Y. Scheglov, Kaushik De, M. H. Kirby, Reinhard Schwienhorst, R. Piegaia, Ariel Schwartzman, Michael A. Strauss, R. Bernhard, Limin Wang, A. Bross, Marc-Andre Pleier, P. Lewis, Ashok Das, Christos Leonidopoulos, T. Kuhl, G. Alkhazov, A. Jenkins, R. J. Madaras, S. Yacoob, J. A. Parsons, Paul Telford, V. White, I. Blackler, Avto Kharchilava, P. Lebrun, J. Snow, Christophe Clement, F. Charles, Andrew Brandt, N. Parashar, Serban Protopopescu, M. Jaffré, Tae Jeong Kim, Marcel Vreeswijk, B. Spurlock, O. Boeriu, F. Chevallier, T. Yasuda, Alexander Khanov, Sung Keun Park, Jan Stark, Wendy Taylor, J. Womersley, Zeno Dixon Greenwood, Kirti Ranjan, H.E. Miettinen, Carsten Hensel, Junjie Zhu, Henry Lubatti, Y. A. Yatsunenko, D. K. Cho, A. Stone, George Alverson, Johannes Elmsheuser, P. Neustroev, Tobias Golling, T. Scanlon, Andy Haas, S. Kermiche, M. Wobisch, Alexey Ferapontov, A. Pompoš, J. Cammin, Viatcheslav Stolin, Richard B. Lipton, Tulika Bose, Suman Bala Beri, D. Hedin, J. Kasper, K. Gounder, J. R. Kalk, P. Haefner, Vivian O'Dell, Mark Raymond Adams, Emmanuel Busato, M. Ćwiok, Cristina Galea, Alexander Kupco, D. Karmanov, Marvin Johnson, J. Molina, Carlos Avila, S. Sumowidagdo, Kristian Harder, S. Kesisoglou, O. Atramentov, Tiefu Zhao, V. Siccardi, A. Juste, Todd Adams, M. Wetstein, Sudhir Malik, A. V. Kozelov, Ia Iashvili, P. Skubic, Sabine Crépé-Renaudin, D. Cutts, Ulrike Blumenschein, Frederic Deliot, Christopher George Tully, Jean-Roch Vlimant, Brajesh C Choudhary, J. P. Konrath, H. Dong, Andrew White, D. Buchholz, Wagner Carvalho, M. Michaut, P. L.M. Podesta-Lerma, Jean-Laurent Agram, R. Otec, Randy Ruchti, D. Chakraborty, Greg Landsberg, Adam L. Lyon, G. Savage, Brad Abbott, A. Magerkurth, A. Zatserklyaniy, Y. M. Kharzheev, Sergio F Novaes, R. Jesik, Michael Martens, P. Tamburello, Juan Estrada, C. Ay, Pierre Petroff, B. S. Acharya, C. De Oliveira Martins, P. N. Ratoff, Nikos Varelas, Bing Zhou, Luis Mendoza, Patrick Slattery, G. J. Otero y Garzón, M. Ford, Andrew Askew, Zhengguo Zhao, Anna Goussiou, Abdenour Lounis, D. Shpakov, Pedrame Bargassa, P. M. Tuts, Maksym Titov, T. H. Burnett, Hyun-Chul Kim, Yurii Maravin, Don Lincoln, Erich Varnes, Vladimir Gavrilov, M. Anastasoaie, K. Soustruznik, K. A. Johns, Andrei Nomerotski, C. Jarvis, Gordon Watts, V. Sirotenko, S. N. Fatakia, Robert Harrington, Arnulf Quadt, J. Dyer, N. J. Buchanan, A. Mendes, Gregory R Snow, Elemer Nagy, J. A. Benitez, A. C. Le Bihan, V. M. Podstavkov, J. Monk, John Hobbs, A. Baden, J. Barreto, Ulrich Heintz, Md. Naimuddin, A. S. Turcot, Phillip Gutierrez, M. Fortner, B. Clement, G. C. Blazey, Y. Yen, I. Torchiani, M. Buehler, Frank Filthaut, T. Gadfort, M. Diesburg, M. Lynker, R. Hooper, D. Wicke, R. Yamada, X. F. Song, L. Lobo, T. Nunnemann, Ph Gris, B. Baldin, P. Houben, Lorenzo Feligioni, Jean-Francois Grivaz, S. H. Ahn, P. de Jong, M. Arov, Dorothee Schaile, V. Oguri, A. Koubarovsky, P. Jonsson, Mansoora Shamim, Jing Li, A. V. Popov, M. Hohlfeld, Thomas Hebbeker, D. Khatidze, M. Mulders, J. Hays, Gustaaf Brooijmans, J. Warchol, V. Buescher, S. J. De Jong, B. Kothari, A. A. Shchukin, Andre Sopczak, Frank Fiedler, E. Kajfasz, H. E. Fisk, Aran Garcia-Bellido, M. P. Sanders, J. M. Hauptman, Cecilia Elena Gerber, G. Ginther, Jianming Qian, M. Doidge, B. Andrieu, Elliott Cheu, Victor Daniel Elvira, U. Bassler, S. Robinson, Regina Demina, T. Moulik, Alberto Santoro, J. G.R. Lima, W. M. Lee, P. Rubinov, L. Christofek, Helena Malbouisson, D. Chapin, J. N. Butler, P. D. Grannis, J. Steele, B. Tiller, S. W. Youn, E. Von Toerne, P. Demine, D. Coppage, G. Grenier, N. A. Naumann, Pushpalatha C Bhat, S. Reucroft, Reiner Hauser, D. Käfer, A. Bellavance, B. Hoeneisen, Lee Sawyer, B. G. Pope, Calvin A. Johnson, S. Calvet, Elizaveta Shabalina, Timothy Andeen, A. Kryemadhi, Shuichi Kunori, P. Mättig, R. Illingworth, A. Leflat, S.A. Kahn, Philip Baringer, S. Jabeen, S. Banerjee, M. Demarteau, Carmen García, T. Toole, S. Lager, S. Uvarov, Ivor Fleck, B. Quinn, Thomas Trefzger, Makoto Tomoto, Alice Bean, N. Oliveira, Maria Elena Pol, J. Gardner, J. Kotcher, S. Anderson, Harald Fox, M. Vaupel, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, G. D. Alexeev, Flera Rizatdinova, C. Biscarat, A. Jonckheere, A. Lobodenko, N. Oshima, Daniel Bloch, Daria Zieminska, R. D. Schamberger, Raimund Ströhmer, and L. Duflot

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Top quark, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Tevatron, Electron, 7. Clean energy, 01 natural sciences, Lower limit, Standard Model, law.invention, Nuclear physics, law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider
Abstract

We present the measurement of R = B(t -> Wb)/B(t -> Wq) in pp collisions at root s = 1.96 TeV, using 230 pb(-1) of data collected by the DO experiment at the Fermilab Tevatron Collider. We fit simultaneously R and the number (N-tt) of selected top quark pairs (tt), to the number of identified b-quark jets in events with one electron or one muon, three or more jets, and high transverse energy imbalance. To improve sensitivity, kinematical properties of events with no identified b-quark jets are included in the fit. We measure R = 1.03(-0.17)(0.19) (stat + syst), in good agreement with the standard model. We set lower limits of R > 0.61 and vertical bar V-tb vertical bar > 0.78 at 95% confidence level.

Published
2006
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40. Search for squarks and gluinos in events with jets and missing transverse energy in pp¯ collisions at s=1.96 TeV

Author

A. Baden, G. C. Blazey, J. P. Konrath, T. H. Burnett, Graham Wilson, H. da Motta, H. Dong, I. Torchiani, D. Buchholz, R. Yamada, D. Gillberg, Thomas Trefzger, P. Tamburello, Jean-Francois Grivaz, S. H. Ahn, P. de Jong, J. A. Benitez, Z. Liu, A. S. Ito, A. Melnitchouk, M. Arov, V. A. Bezzubov, J. P. Negret, R. P. Smith, Jonas Strandberg, N. Parua, P. Jonsson, Anna Goussiou, Ulrich Heintz, Stephen Wimpenny, T. Kuhl, V. Hynek, M. Jaffré, J. Dyer, Sophie Trincaz-Duvoid, J. Kozminski, Michael Hildreth, Martin Grunewald, J. Kasper, Chris P. Barnes, G. D. Alexeev, Flera Rizatdinova, Thomas Hebbeker, D. Khatidze, M. Mulders, Gregory R Snow, Milos Lokajicek, Andrew White, M. Michaut, L. Duflot, D. Kau, V. V. Lipaev, Frank Filthaut, M. Diesburg, Alexander Kupco, F. Guo, W. M. Van Leeuwen, Randy Ruchti, K. Stevenson, S. Uzunyan, Darien Wood, V. Lesne, Nicholas John Hadley, C. P. Buszello, B. Åsman, R. Van Kooten, Harrison Prosper, Andrei Nomerotski, John Hobbs, Y. Xie, Amnon Harel, S. Desai, J. Barreto, P.F. Ermolov, Robert Hirosky, A. M. Kalinin, Kristian Harder, D. Bauer, Tae Jeong Kim, D. Cutts, Jovan Mitrevski, G. Gutierrez, Gilvan Alves, M. D. Corcoran, Wagner Carvalho, Greg Landsberg, Marvin Johnson, Nikola Makovec, T. Edwards, A. P. Heinson, G. S. Muanza, Aaron Dominguez, A. Chandra, S. Blessing, Scott Snyder, L. Han, A. V. Kozelov, R. E. Hall, M. Buehler, Sascha Caron, Karl Jakobs, A. Zieminski, Pedrame Bargassa, M. Wetstein, K. Soustruznik, N. J. Buchanan, M. Strovink, H. Weerts, M. Binder, Lev Dudko, C. Belanger-Champagne, Lev Uvarov, Hwi Dong Yoo, S. Sengupta, S. Lammers, V. V. Tokmenin, Terry Richard Wyatt, F. Borcherding, H. A. Neal, N. Gollub, P. A. Rapidis, D. Meder, C. Jarvis, P. Lewis, J. Snow, T. Nunnemann, B. Baldin, K. Peters, Christophe Clement, Mansoora Shamim, J. T. Linnemann, Elizabeth Gallas, Sergio F Novaes, G. Sajot, K. Gounder, Adam L. Lyon, S. Chakrabarti, M. A. Strang, F. Villeneuve-Seguier, K. Yip, N. Xuan, R. A. Sidwell, Sung Keun Park, Y. Hu, R. Unalan, M. Cooke, W. L. Prado Da Silva, I. Ripp-Baudot, A. Meyer, C. Noeding, Yurii Maravin, Vladimir Gavrilov, Gordon Watts, V. Sirotenko, A. C. Le Bihan, Md. Naimuddin, A. S. Turcot, Phillip Gutierrez, Christian Schmitt, S. Nelson, M. H.G. Souza, M. H. Kirby, G. Alkhazov, D. Chakraborty, J. R. Kalk, O. Atramentov, Peter Love, R. Bernhard, Pushpalatha C Bhat, Ariel Schwartzman, L. Stutte, Gregory J Pawloski, A.S. Dyshkant, Ashok Das, M. Lynker, Reiner Hauser, Don Lincoln, Erich Varnes, R. Gelhaus, R. J. Madaras, M. S. Anzelc, Sarah Catherine Eno, S. Yacoob, Jiri Kvita, Marco Verzocchi, C. Magass, Marcel Vreeswijk, B. Spurlock, Frederic Deliot, Zeno Dixon Greenwood, Christopher George Tully, X. F. Song, Suyong Choi, B. Hoeneisen, Lee Sawyer, J. Monk, Andre Sopczak, Horst Severini, K. J. Rani, A. Alton, S. E.K. Mattingly, Rupinder Kaur, Bradley Cox, Dugan O'Neil, E. G. Zverev, F. Chevallier, Armen Vartapetian, B. Andrieu, A. Patwa, Mark Owen, M. Anastasoaie, G. Savage, Elliott Cheu, Junjie Zhu, Dorothee Schaile, Denis Gelé, George Alverson, N. M. Cason, Victor Daniel Elvira, Christos Leonidopoulos, Chuanhua Yu, Cristina Galea, Johannes Elmsheuser, P. Neustroev, Richard B. Lipton, Juan Estrada, Emmanuel Busato, S.A. Kahn, M. Ćwiok, M. Hohlfeld, D. Hedin, Dmitri Tsybychev, R. L. McCarthy, S. Kesisoglou, S. J. Hong, Marcia Begalli, J. Womersley, M. Abolins, Jing Li, Norbert Wermes, R. Jesik, M. Kopal, M. Demarteau, L. Bagby, V. M. Abazov, V. Shary, Arnulf Quadt, M. Wobisch, Paul Telford, Avto Kharchilava, P. Renkel, S. Krzywdzinski, A. Pompoš, Meenakshi Narain, Sherry Towers, J. Haley, Carmen García, Elemer Nagy, A. Yurkewicz, R. Otec, Mark Raymond Adams, D. Karmanov, K. A. Johns, Sergey Burdin, M. Eads, T. Millet, Kevin Black, Alexander Khanov, L. Christofek, C. Biscarat, J. D. Degenhardt, Y. M. Kharzheev, N. K. Mondal, P. K. Mal, Patrick Slattery, G. J. Otero y Garzón, V. I. Rud, S. Söldner-Rembold, S. P. Denisov, Sudhir Malik, Ia Iashvili, Helena Malbouisson, D. Chapin, K. M. Chan, Christian Zeitnitz, S. J. De Jong, Iain Alexander Bertram, Michael Rijssenbeek, P. Schieferdecker, H. T. Diehl, T. A. Bolton, J. Lazoflores, Jean-Roch Vlimant, Brajesh C Choudhary, Abdenour Lounis, Y. Pogorelov, A. Jonckheere, P. Haefner, B. Kothari, D. V. Bandurin, Jun Guo, Q. Z. Li, C. De Oliveira Martins, P. N. Ratoff, Robert Harrington, A. Boehnlein, H. Greenlee, D. M. Strom, Tiefu Zhao, B. C.K. Casey, A. Mendes, J. N. Butler, P. D. Grannis, Michael Mulhearn, A. Lobodenko, B. Davies, Heriberto Castilla-Valdez, V. N. Evdokimov, J. Ellison, I. Hall, M. Ahsan, D. Wicke, Ulrike Blumenschein, A. Bross, J. Steele, M. Sosebee, Christophe Royon, Jeroen Hegeman, Sa. Jain, S. Fuess, D. A. Stoyanova, S. Kappler, N. Oshima, Daniel Bloch, M. Das, P. L.M. Podesta-Lerma, Daria Zieminska, R. D. Schamberger, A. A. Shchukin, T. Kurca, J. A. Parsons, Frank Fiedler, Raimund Ströhmer, Serban Protopopescu, P. M. Tuts, Maksym Titov, Marc Weber, Jean-Laurent Agram, Freya Blekman, L. Lobo, Sharon Hagopian, Lorenzo Feligioni, E. Kajfasz, V. Simak, P. Padley, R. F. Rodrigues, S. J. Park, Andy Haas, A. K.A. Maciel, L. Berntzon, Brad Abbott, C. Ay, A. Sanchez-Hernandez, Pierre Petroff, T. Gadfort, V. Zutshi, R. Hooper, H. D. Wahl, Mitchell Wayne, F. Lehner, K. W. Merritt, J. F. Bartlett, A. V. Ferapontov, Michael Begel, P. Vint, V. Oguri, A. Koubarovsky, A. V. Popov, H. Schellman, J. M. Kohli, Andrew Brandt, P. Banerjee, Robert Kehoe, Stefan Grünendahl, P. Verdier, M. Agelou, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Shpakov, J. Hays, Kirti Ranjan, H.E. Miettinen, Carsten Hensel, R. Piegaia, Gustaaf Brooijmans, D. Brown, A. M. Magnan, M. Yan, Gregorio Bernardi, D. Denisov, Mossadek Talby, F. Badaud, J. Warchol, S. Burke, B. Gómez, Eduardo De Moraes Gregores, Shashikant Dugad, G. A. Davis, Boris Tuchming, A. Evdokimov, Luiz Mundim, E. Galyaev, Limin Wang, Marc-Andre Pleier, M. Petteni, J. M. Kalk, J. M. Heinmiller, Hal Evans, Thomas Ferbel, A. Jenkins, T. Yasuda, Wendy Taylor, Lars Sonnenschein, Roger Moore, P. Skubic, V. Siccardi, A. Magerkurth, A. Zatserklyaniy, B. S. Acharya, Y. A. Yatsunenko, Viatcheslav Stolin, J. Molina, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, A. C.S. Assis Jesus, Guennadi Borissov, M. C. Cousinou, W. C. Fisher, Neeti Parashar, S. Fu, G. Hesketh, P. J. Van Den Berg, Jessica Levêque, K. Bos, M. Zielinski, Marc Besancon, J. Temple, Michael A. Strauss, P. Lebrun, A. Kryemadhi, O. Boeriu, Shuichi Kunori, D. K. Cho, A. Stone, T. Scanlon, B. Tiller, S. Kermiche, Suman Bala Beri, S. W. Youn, E. Von Toerne, V. Buescher, P. Demine, Vivian O'Dell, A. Juste, Todd Adams, U. Bassler, D. Coppage, S. Robinson, D. Edmunds, Regina Demina, W. D. Shephard, G. Grenier, R. McCroskey, Andre Sznajder, N. A. Naumann, Yuri Gershtein, Emmanuelle Perez, S. Reucroft, D. Käfer, A. Bellavance, T. Moulik, Reinhard Schwienhorst, Emanuela Barberis, Kazunori Hanagaki, Dongliang Zhang, Ashok Kumar, F. Charles, Tulika Bose, Alberto Santoro, J. G.R. Lima, Michael Martens, M. Ford, S. N. Fatakia, V. M. Podstavkov, M. Fortner, B. Clement, W. M. Lee, Ph Gris, P. Houben, P. Rubinov, B. G. Pope, H. E. Fisk, Calvin A. Johnson, S. Calvet, Aran Garcia-Bellido, Elizaveta Shabalina, Timothy Andeen, Vipin Bhatnagar, E. De La Cruz-Burelo, M. P. Sanders, R. Partridge, Christian Autermann, J. M. Hauptman, Kenneth Bloom, V. L. Malyshev, H. S. Mao, Cecilia Elena Gerber, T. Toole, S. Lager, S. Uvarov, Ivor Fleck, G. Ginther, B. Quinn, Makoto Tomoto, C. Schwanenberger, Alice Bean, N. Oliveira, Maria Elena Pol, Jianming Qian, J. Gardner, J. Kotcher, S. Anderson, Harald Fox, M. Vaupel, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, M. Doidge, P. Mättig, R. Illingworth, A. Leflat, H. Kim, Philip Baringer, S. Banerjee, L. S. Vertogradov, Y. Arnoud, W. E. Cooper, Yann Coadou, Mikko Voutilainen, Arnaud Duperrin, V. M. Korablev, Nikos Varelas, Jong-Sung Yu, G. Obrant, Bing Zhou, Luis Mendoza, R. K. Shivpuri, Shabnam Jabeen, M. Merkin, Raymond Brock, Boaz Klima, I. Katsanos, R. Beuselinck, D. R. Claes, Gavin Davies, Julia S. Meyer, Y. Scheglov, Kaushik De, I. Blackler, Jan Stark, Henry Lubatti, and J. Cammin

Subjects
Physics, Nuclear and High Energy Physics, Gluino, Particle physics, 010308 nuclear & particles physics, Supergravity, High Energy Physics::Phenomenology, Tevatron, 7. Clean energy, 01 natural sciences, Lower limit, law.invention, Nuclear physics, Transverse plane, law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider, Energy (signal processing)
Abstract

The results of a search for squarks and gluinos using data from p p ¯ collisions recorded at a center-of-mass energy of 1.96 TeV by the DO detector at the Fermilab Tevatron Collider are reported. The topologies analyzed consist of acoplanar-jet and multijet events with large missing transverse energy. No evidence for the production of squarks or gluinos was found in a data sample of 310 pb−1. Lower limits of 325 and 241 GeV were derived at the 95% C.L. on the squark and gluino masses, respectively, within the framework of minimal supergravity with tan β = 3 , A 0 = 0 , and μ 0 .

Published
2006
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41. Search for pair production of second generation scalar leptoquarks in pp¯ collisions at s=1.96 TeV

Author

V. M. Abazov, Christophe Royon, V. Shary, H. D. Wahl, D. Bauer, P. Verdier, V. V. Tokmenin, C. Schwanenberger, T. Christiansen, Iain Alexander Bertram, V. Buescher, A. Evdokimov, M. Petteni, E. Galyaev, Michael Rijssenbeek, D. V. Bandurin, H. A. Neal, F. Villeneuve-Seguier, D. Meder, J. T. Linnemann, K. Yip, N. Xuan, J. M. Kalk, Kristian Harder, V. N. Evdokimov, I. Hall, A. Chandra, R. Unalan, L. Stutte, Gregory J Pawloski, U. Bassler, Wendy Taylor, A.S. Dyshkant, Roger Moore, T. Yasuda, V. Siccardi, A. Magerkurth, A. Zatserklyaniy, T. Toole, B. S. Acharya, K. J. Rani, A. Alton, S. Lager, S. Chakrabarti, Peter Love, Jiri Kvita, A. Jenkins, D. Cutts, Wagner Carvalho, Armen Vartapetian, Thomas Trefzger, Emily Nurse, Elizabeth Gallas, S. Robinson, D. Edmunds, W. D. Shephard, R. McCroskey, Andre Sznajder, Robert Hirosky, S. Uvarov, Regina Demina, Ivor Fleck, H. Dong, Christos Leonidopoulos, A. Leflat, G. Obrant, Yuri Gershtein, Emmanuelle Perez, B. Quinn, Emanuela Barberis, P. Skubic, I. Ripp-Baudot, A. M. Kalinin, Dmitri Tsybychev, R. L. McCarthy, A. Yurkewicz, Makoto Tomoto, J. Womersley, D. A. Stoyanova, Alice Bean, D. Buchholz, Sascha Caron, G. D. Alexeev, A. Meyer, T. Moulik, C. Jarvis, M. Lynker, X. F. Song, Reinhard Schwienhorst, Dorothee Schaile, M. Hohlfeld, L. Bagby, Kazunori Hanagaki, Dongliang Zhang, Cris W. Barnes, Adam L. Lyon, P. K. Mal, V. I. Rud, S. Söldner-Rembold, Flera Rizatdinova, N. Oliveira, S. E.K. Mattingly, P. Tamburello, Anna Goussiou, Greg Landsberg, M. Wobisch, A. Pompoš, Mark Raymond Adams, D. Karmanov, Jovan Mitrevski, Ashok Kumar, Maria Elena Pol, Alberto Santoro, J. G.R. Lima, F. Charles, M. Das, F. Lehner, H. Kim, Philip Baringer, V. Lesne, Michael A. Strauss, G. Gutierrez, Gilvan Alves, Nikola Makovec, M. Strovink, Sudhir Malik, Ia Iashvili, B. Tiller, S. W. Youn, E. Von Toerne, P. Demine, M. H. Kirby, N. Gollub, G. Alkhazov, S. Jabeen, M. Merkin, K. M. Chan, Christian Zeitnitz, Jean-Roch Vlimant, Brajesh C Choudhary, W. M. Lee, J. Gardner, M. Kopal, S. Banerjee, P. Lebrun, Pedrame Bargassa, Tulika Bose, O. Boeriu, P. Rubinov, J. M. Hauptman, J. Dyer, F. Badaud, Ashok Das, Suyong Choi, D. Coppage, M. Anastasoaie, Paul Telford, Avto Kharchilava, Arnulf Quadt, P. Renkel, Elemer Nagy, J. Kotcher, S. Anderson, Michael Begel, Karl Jakobs, J. A. Benitez, Eduardo De Moraes Gregores, D. K. Cho, A. Stone, Marcel Vreeswijk, Tobias Golling, T. Scanlon, Cecilia Elena Gerber, Harald Fox, S. Lammers, S. Kermiche, B. Davies, S. Krzywdzinski, Alexander Khanov, Graham Wilson, H. da Motta, Suman Bala Beri, Gregory R Snow, K. Soustruznik, G. Grenier, N. A. Naumann, N. J. Buchanan, D. Wicke, G. Ginther, Raymond Brock, L. Lobo, A. M. Magnan, Boaz Klima, M. Vaupel, Michael Martens, D. Gillberg, Vivian O'Dell, F. Chevallier, B. Spurlock, A. S. Ito, A. Melnitchouk, Zeno Dixon Greenwood, M. Ford, R. Van Kooten, Heriberto Castilla-Valdez, A. Juste, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, Vipin Bhatnagar, M. D. Corcoran, Todd Adams, E. De La Cruz-Burelo, Pushpalatha C Bhat, C. Noeding, Jianming Qian, Lorenzo Feligioni, Reiner Hauser, S. N. Fatakia, R. Partridge, L. Han, V. Hynek, P. Lewis, J. Snow, V. M. Podstavkov, Sharon Hagopian, I. Katsanos, R. Beuselinck, Christian Schmitt, S. Nelson, M. H.G. Souza, Christophe Clement, Sung Keun Park, A. Zieminski, L. Berntzon, Christian Autermann, S. Reucroft, D. Käfer, A. Bellavance, P. Mättig, R. Illingworth, B. G. Pope, Cristina Galea, A. K.A. Maciel, W. M. Van Leeuwen, M. Fortner, B. Clement, M. C. Cousinou, V. V. Lipaev, V. L. Malyshev, F. Borcherding, G. A. Davis, Boris Tuchming, Luiz Mundim, Limin Wang, Marc-Andre Pleier, R. Gelhaus, M. Doidge, H. Greenlee, T. H. Burnett, B. Hoeneisen, Lee Sawyer, H. S. Mao, Emmanuel Busato, D. M. Strom, B. C.K. Casey, M. Ćwiok, Calvin A. Johnson, S. Calvet, Rupinder Kaur, Bradley Cox, Julia S. Meyer, Y. Hu, Ph Gris, P. Houben, S. Fu, Elizaveta Shabalina, M. Cooke, Nikos Varelas, G. Sajot, W. L. Prado Da Silva, R. Piegaia, Bing Zhou, Luis Mendoza, R. K. Shivpuri, A. Bross, A. Kryemadhi, Timothy Andeen, Tae Jeong Kim, P.F. Ermolov, D. A. Wijngaarden, M. A. Strang, L. S. Vertogradov, R. A. Sidwell, G. Hesketh, R. Otec, Shuichi Kunori, S. Greder, H. E. Fisk, T. Edwards, Serban Protopopescu, M. S. Anzelc, P. J. Van Den Berg, P. Banerjee, Y. Arnoud, Sergey Burdin, M. Eads, D. R. Claes, Gavin Davies, Jessica Levêque, K. Bos, Marc Besancon, J. Temple, S. P. Denisov, Marvin Johnson, W. E. Cooper, S. Doulas, Yann Coadou, Ariel Schwartzman, C. De Oliveira Martins, P. N. Ratoff, Sarah Catherine Eno, Horst Severini, Ulrich Heintz, P. M. Tuts, Maksym Titov, A. Sanchez-Hernandez, V. Zutshi, P. Haefner, Andy Haas, A. V. Kozelov, Mikko Voutilainen, Lev Uvarov, Y. Scheglov, Aran Garcia-Bellido, Kaushik De, S.A. Kahn, Arnaud Duperrin, V. M. Korablev, J. P. Konrath, M. Demarteau, Alexey Ferapontov, Junjie Zhu, M. Abolins, Richard B. Lipton, M. Wetstein, A. Baden, Tiefu Zhao, G. C. Blazey, Y. Yen, D. Chakraborty, Jong-Sung Yu, Kevin Black, M. P. Sanders, I. Blackler, N. K. Mondal, P. Schieferdecker, Jeroen Hegeman, H. T. Diehl, T. A. Bolton, Ulrike Blumenschein, Y. Pogorelov, P. L.M. Podesta-Lerma, I. Torchiani, R. Yamada, A. Boehnlein, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Shpakov, Carmen García, Don Lincoln, Erich Varnes, J. Kasper, Frank Filthaut, C. Biscarat, J. Monk, M. Diesburg, Gregorio Bernardi, D. Denisov, P. A. Rapidis, Jean-Francois Grivaz, J. Ellison, S. H. Ahn, M. Ahsan, Jan Stark, Sa. Jain, S. Fuess, Jean-Laurent Agram, T. Kurca, Henry Lubatti, P. de Jong, M. Arov, Marc Weber, P. Jonsson, Andrew White, Abdenour Lounis, Thomas Hebbeker, D. Khatidze, M. Mulders, J. Cammin, M. Michaut, Brad Abbott, C. Ay, Pierre Petroff, M. Buehler, A. Jonckheere, T. Nunnemann, B. Baldin, A. Lobodenko, K. W. Merritt, Robert Harrington, J. M. Heinmiller, J. F. Bartlett, Jing Li, A. Mendes, Robert Kehoe, M. Agelou, Andrei Nomerotski, M. Yan, S. Burke, L. Duflot, John Hobbs, Mansoora Shamim, N. Oshima, Daniel Bloch, Daria Zieminska, R. D. Schamberger, J. Barreto, Hal Evans, B. Åsman, Thomas Ferbel, Lars Sonnenschein, T. R. Wyatt, A. P. Heinson, Andre Sopczak, B. Andrieu, Elliott Cheu, Victor Daniel Elvira, G. S. Muanza, R. E. Hall, Frederic Deliot, Christopher George Tully, Y. M. Kharzheev, Patrick Slattery, G. J. Otero y Garzón, L. Christofek, Helena Malbouisson, D. Chapin, J. N. Butler, P. D. Grannis, J. Steele, A. C.S. Assis Jesus, Guennadi Borissov, W. C. Fisher, M. Zielinski, Viatcheslav Stolin, J. Molina, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, H. Weerts, M. Binder, Lev Dudko, M. Sosebee, Hwi Dong Yoo, S. Sengupta, Freya Blekman, Andrew Brandt, Kirti Ranjan, H.E. Miettinen, Jonas Strandberg, N. Parua, Carsten Hensel, Marco Verzocchi, C. Magass, Dugan O'Neil, E. G. Zverev, Raimund Ströhmer, A. Patwa, Mark Owen, Denis Gelé, N. M. Cason, V. Simak, Marcia Begalli, T. Kuhl, N. Parashar, P. Padley, R. F. Rodrigues, Norbert Wermes, Meenakshi Narain, Sherry Towers, J. Haley, J. D. Degenhardt, M. Jaffré, J. Lazoflores, Mitchell Wayne, H. Schellman, J. M. Kohli, Stefan Grünendahl, D. Brown, Alexander Kupco, Mossadek Talby, B. Gómez, Shashikant Dugad, Randy Ruchti, Sergio F Novaes, Yurii Maravin, Vladimir Gavrilov, K. Gounder, J. R. Kalk, Gordon Watts, O. Atramentov, V. Sirotenko, A. C. Le Bihan, Md. Naimuddin, Stephen Wimpenny, A. S. Turcot, Phillip Gutierrez, Martin Grunewald, V. White, Milos Lokajicek, Darien Wood, Nicholas John Hadley, C. P. Buszello, S. Blessing, G. Savage, Scott Snyder, Juan Estrada, Jun Guo, Q. Z. Li, J. A. Parsons, R. Bernhard, R. J. Madaras, S. Yacoob, George Alverson, D. Hedin, S. Kesisoglou, V. A. Bezzubov, J. P. Negret, R. P. Smith, Sophie Trincaz-Duvoid, J. Kozminski, Michael Hildreth, D. Kau, K. Stevenson, S. Uzunyan, Y. A. Yatsunenko, Harrison Prosper, Y. Xie, Amnon Harel, S. Desai, S. J. Hong, Johannes Elmsheuser, P. Neustroev, R. Jesik, K. A. Johns, T. Gadfort, R. Hooper, V. Oguri, A. Koubarovsky, A. V. Popov, J. Hays, Gustaaf Brooijmans, J. Warchol, S. J. De Jong, B. Kothari, A. A. Shchukin, Frank Fiedler, and E. Kajfasz

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Scalar (mathematics), 01 natural sciences, Nuclear physics, Pair production, 0103 physical sciences, Leptoquark, 010306 general physics, Lepton, Boson
Abstract

We report on a search for the pair production of second generation scalar leptoquarks (LQ_2) in ppbar collisions at the center-of-mass energy sqrt(s) = 1.96 TeV, using data corresponding to an integrated luminosity of 294 +- 19 pb^-1 recorded with the D0 detector. No evidence for a leptoquark signal in the LQ_2 LQ_2 -> muq muq channel has been observed, and upper bounds on the product of cross section times branching fraction were set. This yields lower mass limits of m(LQ_2) > 247 GeV for beta = Br(LQ_2->muq) = 1 and m(LQ_2) > 182 GeV for beta = 1/2. Combining these limits with previous D0 results, the lower limits on the mass of a second generation scalar leptoquark are m(LQ_2) > 251 GeV and m(LQ_2) > 204 GeV for beta = 1 and beta = 1/2, respectively.

Published
2006
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42. Search for single top quark production in pp¯ collisions at s=1.96 TeV

Author

P. Lebrun, Karel Smolek, H. Dong, Adam L. Lyon, A. Baden, O. Boeriu, Y. Kulik, Christos Leonidopoulos, D. Buchholz, D. K. Cho, A. Stone, G. C. Blazey, Y. Yen, Christophe Royon, Tobias Golling, T. Scanlon, M. Anastasoaie, S. Kermiche, R. Yamada, Jean-Francois Grivaz, S. H. Ahn, P. de Jong, Arnulf Quadt, P. Tamburello, J. Womersley, C. Biscarat, P. A. Rapidis, Suman Bala Beri, Vivian O'Dell, Elemer Nagy, Anna Goussiou, F. Villeneuve-Seguier, A. Jonckheere, S. Dean, J. M. Hauptman, Cecilia Elena Gerber, M. Sosebee, P. Jonsson, Stephan Linn, A. Lobodenko, J. Wittlin, R. K. Shivpuri, N. Oshima, J. Dyer, Gregory R Snow, Kevin Black, A. Juste, H. D. Wahl, Daniel Bloch, Daria Zieminska, G. Ginther, R. D. Schamberger, Jianming Qian, L. Lobo, Lorenzo Feligioni, N. K. Mondal, P. Schieferdecker, H. T. Diehl, T. A. Bolton, D. Bauer, N. Gollub, W. M. Van Leeuwen, Emily Nurse, Elizabeth Gallas, T. Edwards, L. Duflot, Vipin Bhatnagar, Thomas Hebbeker, M. Mulders, M. Wobisch, A. Pompoš, Lev Uvarov, D. R. Claes, Gavin Davies, S. Doulas, Y. Pogorelov, A. Boehnlein, J. Ellison, A. K.A. Maciel, Sa. Jain, S. Fuess, T. Kurca, Marc Weber, A. Lounis, E. De La Cruz-Burelo, Stephanie Beauceron, D. Karmanov, Michael Martens, C. Schwanenberger, Thomas Trefzger, B. Clément, B. Åsman, K. J. Rani, Freya Blekman, R. Kaur, M. C. Cousinou, N. Lahrichi, A. P. Heinson, R. Partridge, X. Zhang, M. A. Strang, M. Merkin, S. W. Youn, E. Von Toerne, P. Demine, Sung Keun Park, Suyong Choi, T. Vu Anh, E. Galyaev, M. Zdrazil, V. A. Bezzubov, Sudhir Malik, G. S. Muanza, A. Meyer, Kaushik De, M. Doidge, Christian Schmitt, S. Nelson, F. Badaud, G. D. Alexeev, Flera Rizatdinova, Marcel Vreeswijk, B. Spurlock, Zeno Dixon Greenwood, T. Adams, Alexandre Zabi, P. Verdier, M. H.G. Souza, J. P. Negret, Cristina Galea, Andrew Brandt, R. Zitoun, D. Coppage, I. Blackler, Armen Vartapetian, Raymond Brock, Boaz Klima, R. Gelhaus, Christian Autermann, B. G. Pope, R. W. Moore, S. N. Fatakia, A. Evdokimov, V. M. Podstavkov, Ia Iashvili, Jean-Roch Vlimant, Brajesh C Choudhary, R. E. Hall, R. P. Smith, Sophie Trincaz-Duvoid, L. Lueking, T. Yasuda, S. Fu, Johannes Elmsheuser, Kirti Ranjan, H.E. Miettinen, Terry Richard Wyatt, P. Neustroev, F. Borcherding, K. Gounder, J. R. Kalk, M. Petteni, R. Bernhard, D. A. Wijngaarden, O. Atramentov, R. Beuselinck, Tae Jeong Kim, Carsten Hensel, Jan Stark, U. Bassler, G. Alkhazov, Henry Lubatti, M. Fortner, V. L. Malyshev, J. Kozminski, Michael Hildreth, Bradley Cox, Wendy Taylor, Pushpalatha C Bhat, D. Kau, Reiner Hauser, S. Reucroft, P.F. Ermolov, K. M. Chan, Christian Zeitnitz, R. Jesik, H. S. Mao, A. Jenkins, S. Robinson, G. Hesketh, M. Cooke, Regina Demina, R. L. McCarthy, Elizaveta Shabalina, J. Cammin, G. Sajot, N. A. Naumann, K. A. Johns, A. Yurkewicz, B. Hoeneisen, Lee Sawyer, A. Harel, C. Han, D. Chakraborty, K. Stevenson, P. J. Van Den Berg, Jessica Levêque, K. Bos, Marc Besancon, J. Temple, Y. Hu, Ph Gris, A. Magerkurth, P. Skubic, P. Houben, S. Uzunyan, T. Moulik, A. Zatserklyaniy, T. Christiansen, W. L. Prado Da Silva, H. A. Neal, D. Meder, J. T. Linnemann, Don Lincoln, Erich Varnes, Alexey Ferapontov, K. Yip, N. Xuan, Y. A. Yatsunenko, B. S. Acharya, P. W. Balm, C. De Oliveira Martins, P. N. Ratoff, Alberto Santoro, S. Greder, J. G.R. Lima, Sarah Catherine Eno, Horst Severini, M. Ahsan, Marvin Johnson, V. I. Rud, S. Söldner-Rembold, B. Davies, M. Buehler, Harrison Prosper, S.A. Kahn, M. Demarteau, T. Gadfort, Carmen García, Frederic Deliot, P. M. Tuts, G. Savage, Julia S. Meyer, Emanuela Barberis, Kazunori Hanagaki, Dongliang Zhang, Emmanuel Busato, Gregorio Bernardi, A. V. Kozelov, D. Denisov, Junjie Zhu, S. Desai, L. Stutte, Gregory J Pawloski, D. Käfer, A. Bellavance, P. Rubinov, A. C. Le Bihan, C. Magass, M. Kopal, Dugan O'Neil, E. G. Zverev, Ariel Schwartzman, N. R. Stanton, T. Toole, Richard B. Lipton, S. Lager, Robert Hirosky, R. Hooper, S. J. Hong, J. Fast, A.S. Dyshkant, Juan Estrada, T. Andeen, M. Lynker, X. F. Song, J. M. Heinmiller, Hal Evans, Thomas Ferbel, Lars Sonnenschein, A. M. Kalinin, A. Patwa, Denis Gelé, N. M. Cason, Sascha Caron, S. Chakrabarti, Peter Love, L. S. Vertogradov, Jiri Kvita, D. Edmunds, H. E. Fisk, Marcia Begalli, Tiefu Zhao, Dorothee Schaile, Jing Li, V. Oguri, A. Koubarovsky, Ashok Kumar, Graham Wilson, H. da Motta, D. Gillberg, A. S. Ito, A. Melnitchouk, Jovan Mitrevski, M. Hohlfeld, K. Genser, Norbert Wermes, Meenakshi Narain, Sherry Towers, Y. Arnoud, Aran Garcia-Bellido, J. P. Konrath, R. J. Madaras, W. D. Shephard, R. McCroskey, Andre Sznajder, S. Uvarov, M. Strovink, Kristian Harder, D. Cutts, Wagner Carvalho, Greg Landsberg, Pedrame Bargassa, G. Gutierrez, Gilvan Alves, Nikola Makovec, Ivor Fleck, B. Quinn, Nikos Varelas, J. Kasper, J. Hays, Ulrike Blumenschein, Gustaaf Brooijmans, K. Soustruznik, Sharon Hagopian, S. Yacoob, P. K. Mal, W. E. Cooper, Raimund Ströhmer, V. Simak, P. Padley, R. F. Rodrigues, V. Hynek, Bing Zhou, E. E. Boos, J. D. Degenhardt, Yuri Gershtein, Emmanuelle Perez, B. Abbott, L. Groer, Karl Jakobs, Makoto Tomoto, Yann Coadou, Chris P. Barnes, Heriberto Castilla-Valdez, P. L.M. Podesta-Lerma, J. Lazoflores, Mitchell Wayne, S. Anderson, H. Schellman, J. M. Kohli, V. V. Lipaev, H. Weerts, A. Kryemadhi, Stephen Wimpenny, M. Binder, M. P. Sanders, Alice Bean, R. Piegaia, L. Christofek, A. A. Mayorov, George Alverson, M. Adams, Andrew White, Tulika Bose, J. Warchol, M. Michaut, Shuichi Kunori, Stefan Grünendahl, Helena Malbouisson, D. Chapin, Martin Grunewald, V. White, Arnaud Duperrin, V. M. Korablev, D. Hedin, Reinhard Schwienhorst, Milos Lokajicek, Lev Dudko, Jean-Laurent Agram, P. Lewis, S. Kesisoglou, V. M. Abazov, P. Mättig, Viacheslav Bunichev, Mossadek Talby, M. Verzocchi, J. Snow, Jong-Sung Yu, B. Gómez, J. Torborg, C. Noeding, N. Oliveira, R. Illingworth, J. N. Butler, P. D. Grannis, Iain Alexander Bertram, S. J. De Jong, Shashikant Dugad, Michael Rijssenbeek, A. Leflat, J. Steele, Darien Wood, Nicholas John Hadley, C. P. Buszello, Hwi Dong Yoo, S. Sengupta, Maria Elena Pol, B. Kothari, Andrei Nomerotski, D. Wicke, Pierre Petroff, John Hobbs, V. N. Evdokimov, I. Ripp-Baudot, I. Hall, A. Chandra, S. Blessing, A. Cothenet, J. Barreto, Jonas Strandberg, N. Parua, H. Kim, Philip Baringer, S. Jabeen, S. Banerjee, Scott Snyder, R. Van Kooten, A. Sanchez-Hernandez, M. Eads, A. A. Shchukin, Frank Fiedler, V. Zutshi, J. Gardner, M. D. Corcoran, E. Kajfasz, M. Jaffré, Q. Z. Li, L. Han, J. Kotcher, Robert Harrington, A. Zieminski, A. Mendes, Zhengguo Zhao, Brigitte Vachon, Harald Fox, D. Shpakov, J. Huang, Alexander Kupco, A. Alton, F. Charles, C. Clément, T. Nunnemann, B. Baldin, Randy Ruchti, Sergio F Novaes, V. Buescher, M. Vaupel, Y. D. Mutaf, I. A. Vasilyev, P. M. Perea, Yurii Maravin, Vladimir Gavrilov, Gordon Watts, V. Sirotenko, O. V. Eroshin, A. S. Turcot, Phillip Gutierrez, R. A. Sidwell, Mansoora Shamim, A. Askew, W. M. Lee, A. Kharchilava, Andre Sopczak, B. Andrieu, S. E.K. Mattingly, Elliott Cheu, Victor Daniel Elvira, V. V. Shary, Vivek Jain, Q. Xu, Paul Telford, Alexander Khanov, N. J. Buchanan, K. W. Merritt, J. F. Bartlett, Robert Kehoe, M. Agelou, A. M. Magnan, M. Yan, S. Burke, Sergey Burdin, S. P. Denisov, A. C.S. Assis Jesus, Guennadi Borissov, W. C. Fisher, Neeti Parashar, M. Abolins, M. Zielinski, S. N. Gurzhiev, Viatcheslav Stolin, J. Molina, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, S. Krzywdzinski, F. Lehner, H. Greenlee, D. M. Strom, B. C.K. Casey, A. Bross, Christopher George Tully, Y. M. Kharzheev, Serban Protopopescu, Patrick Slattery, G. J. Otero y Garzón, J. A. Parsons, T. H. Burnett, Ulrich Heintz, Frank Filthaut, M. Diesburg, Andy Haas, D. A. Stoyanova, M. Das, Michael Begel, Eduardo De Moraes Gregores, G. A. Davis, Boris Tuchming, Luiz Mundim, Limin Wang, Marc-Andre Pleier, and Michael A. Strauss

Subjects
Physics, Quark, Nuclear and High Energy Physics, Top quark, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Electroweak interaction, Tevatron, Particle accelerator, 01 natural sciences, law.invention, Nuclear physics, Pair production, law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics, Collider
Abstract

We present a search for electroweak production of single top quarks in the s-channel and t-channel using neural networks for signal-background separation. We have analyzed 230 pb(-1) of data collected with the DO detector at the Fermilab Tevatron Collider at a center-of-mass energy of 1.96 TeV and find no evidence for a single top quark signal. The resulting 95% confidence level upper limits on the single top quark production cross sections are 6.4 pb in the s-channel and 5.0 ph in the t-channel. (c) 2005 Elsevier B.V. All rights reserved.

Published
2005
Full Text
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43. 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

44. 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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45. 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
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46. Timing matters:Sonar call groups facilitate target localization in bats

Author

Katrine Hulgard, Melville J. Wohlgemuth, Ninad B. Kothari, Annemarie Surlykke, and Cynthia F. Moss

Subjects
Adaptive control, Physiology, Computer science, Echolocation behavior, echolocation behavior, Speech recognition, active sensing, Human echolocation, Target tracking, Sonar, lcsh:Physiology, Sonar call timing, Eptesicus fuscus, Physiology (medical), Computer vision, Active sensing, Original Research Article, spatial perception, lcsh:QP1-981, biology, business.industry, Pulse (music), Spatial perception, biology.organism_classification, sonar call timing, Clutter, Artificial intelligence, target tracking, business
Abstract

To successfully negotiate a cluttered environment, an echolocating bat must control the timing of motor behaviors in response to dynamic sensory information. Here we detail the big brown bat's adaptive temporal control over sonar call production for tracking prey, moving predictably or unpredictably, under different experimental conditions. We studied the adaptive control of vocal-motor behaviors in free-flying big brown bats, Eptesicus fuscus, as they captured tethered and free-flying insects, in open and cluttered environments. We also studied adaptive sonar behavior in bats trained to track moving targets from a resting position. In each of these experiments, bats adjusted the features of their calls to separate target and clutter. Under many task conditions, flying bats produced prominent sonar sound groups identified as clusters of echolocation pulses with relatively stable intervals, surrounded by longer pulse intervals. In experiments where bats tracked approaching targets from a resting position, bats also produced sonar sound groups, and the prevalence of these sonar sound groups increased when motion of the target was unpredictable. We hypothesize that sonar sound groups produced during flight, and the sonar call doublets produced by a bat tracking a target from a resting position, help the animal resolve dynamic target location and represent the echo scene in greater detail. Collectively, our data reveal adaptive temporal control over sonar call production that allows the bat to negotiate a complex and dynamic environment.

Published
2014
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47. 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
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48. Midbrain neurons of the free-flying echolocating bat represent three-dimensional space

Author

Melville J. Wohlgemuth, Cynthia F. Moss, and Ninad B. Kothari

Subjects
030110 physiology, 0301 basic medicine, Acoustics and Ultrasonics, Computer science, business.industry, Acoustics, Superior colliculus, Echo (computing), Human echolocation, Sonar, Spatial memory, Midbrain, 03 medical and health sciences, Arts and Humanities (miscellaneous), Computer vision, Artificial intelligence, business
Abstract

Spatial navigation by echolocation in bats is an active and adaptive system: Its success depends upon tight coupling between motor commands for sonar signal production and neural processing that supports spatial perception and attention to objects in the 3D environment. The midbrain superior colliculus (SC) has been implicated in sensorimotor transformations to support adaptive behaviors in the echolocating bat, but the response properties of SC neurons have yet to be studied in free-flying animals engaged in natural spatial navigation behaviors. Using RF telemetry, in combination with a model that computes the direction and arrival time of echoes received at the bat’s ears, we have successfully characterized the auditory response profiles of single neurons in the SC of the free-flying big brown bat. Neural data, acquired across intermediate and deep layers of the bat SC, were sorted off-line from multichannel silicon array recordings. Spikes evoked by echo returns were analyzed and used to construct 3D s...

Published
2016
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50. Measurement of the ratio of inclusive cross sectionsσ(pp¯→Z+b−quark jet)/σ(pp¯→Z+jet)ats=1.96 TeV

Author

Adam L. Lyon, T. Gadfort, R. Hooper, V. Oguri, A. Koubarovsky, J. Hays, Gustaaf Brooijmans, J. Warchol, K. W. Merritt, Laurent Chevalier, Guennadi Borissov, B. Thooris, M. Anastasoaie, M. Sosebee, J. F. Bartlett, W. C. Fisher, Emily Nurse, Elizabeth Gallas, Arnulf Quadt, Elemer Nagy, Graham Wilson, H. da Motta, Thomas Trefzger, J. Kasper, J. M. Hauptman, Cecilia Elena Gerber, G. Ginther, Robert Kehoe, M. Agelou, Stephen Wimpenny, Sung Keun Park, B. Davies, L. Sonnenschein, Jianming Qian, B. G. Pope, Martin Grunewald, V. White, S. Krzywdzinski, M. Abolins, A. Baden, Johannes Elmsheuser, J. T. Eltzroth, P. Neustroev, Freya Blekman, A. M. Magnan, M. Yan, Jonas Strandberg, R. Jesik, K. A. Johns, A. S. Ito, A. Melnitchouk, Andrew White, Neeti Parashar, L. Lueking, S. J. De Jong, N. Parua, S. Chakrabarti, B. Kothari, G. D. Alexeev, Milos Lokajicek, E. De La Cruz-Burelo, M. Zielinski, G. C. Blazey, Y. Yen, Kevin Black, Flera Rizatdinova, J. Coss, R. Yamada, M. Eads, L. Lobo, Lorenzo Feligioni, Pierre-Antoine Delsart, M. Zdrazil, Elizaveta Shabalina, L. S. Vertogradov, Darien Wood, Andrei Nomerotski, M. Doidge, S. W. Youn, E. Von Toerne, P. Demine, Frank Fiedler, E. Kajfasz, N. K. Mondal, P. Schieferdecker, H. T. Diehl, John Hobbs, Jean-Francois Grivaz, S. H. Ahn, Christophe Royon, Andrew Brandt, P. de Jong, Raimund Ströhmer, V. Simak, J. Barreto, M. Kopal, M. Jaffré, Sharon Hagopian, D. Coppage, H. D. Wahl, R. Zitoun, Tuan Vu Anh, D. Edmunds, V. V. Lipaev, P. Jonsson, P. Houben, D. Bauer, T. A. Bolton, Alexandre Zabi, Y. Pogorelov, Suyong Choi, H.E. Miettinen, Carsten Hensel, A. Zylberstejn, D. Whiteson, A. Boehnlein, F. Lehner, P. Verdier, H. Greenlee, C. Han, E. Galyaev, Thomas Hebbeker, M. Mulders, L. Han, T. Christiansen, H. A. Neal, D. Meder, D. Evans, P. Padley, W. D. Shephard, Nicholas John Hadley, G. Alkhazov, Christian Schmitt, S. Blessing, Mary Beth Adams, D. K. Cho, Y. Arnoud, Heriberto Castilla-Valdez, T. Yasuda, George Alverson, S. Nelson, M. H.G. Souza, M. Buehler, R. McCroskey, Andre Sznajder, N. A. Naumann, Dugan O'Neil, E. G. Zverev, Abdenour Lounis, A. Evdokimov, D. Mihalcea, C. De Oliveira Martins, P. N. Ratoff, J. Ellison, P. K. Mal, B. C.K. Casey, Alexander Kupco, A. K.A. Maciel, M. Ahsan, A. Bross, R. Gelhaus, H. E. Montgomery, Sa. Jain, O. Peters, S. E.K. Mattingly, M. Cooke, W. L. Prado Da Silva, J. Gardner, D. Hedin, J. T. Linnemann, Yuri Gershtein, Emmanuelle Perez, K. Yip, N. Xuan, M. Petteni, N. R. Stanton, Mitchell Wayne, H. Schellman, J. M. Kohli, A. Patwa, Denis Gelé, N. M. Cason, S. Fuess, A. Yurkewicz, Scott Snyder, P. A. Rapidis, Ariel Schwartzman, Walter Freeman, J. Kotcher, S. Anderson, Stefan Grünendahl, P. M. Tuts, M. Lynker, A. Jenkins, A. Jonckheere, Serban Protopopescu, Kyoung-Ho Kim, S. Reucroft, Seo Won Lee, D. Käfer, S. Dean, Reinhard Schwienhorst, Michael A. Strauss, U. Bassler, Regina Demina, Mossadek Talby, R. L. McCarthy, Harald Fox, Robert Hirosky, A. M. Kalinin, Andy Haas, A. Bellavance, S. Kesisoglou, V. A. Bezzubov, J. P. Negret, X. F. Song, Markus Klute, Kristian Harder, Stephan Linn, A. Lobodenko, Karel Smolek, P. Skubic, R. Piegaia, F. Villeneuve-Seguier, T. Kurca, Marc Weber, W. Kahl, I. Ripp-Baudot, A. Meyer, W. E. Cooper, Yann Coadou, R. P. Smith, Sophie Trincaz-Duvoid, J. Kozminski, M. Hohlfeld, H. Dong, Michael Hildreth, B. Gómez, Arnaud Duperrin, P. Lebrun, Robert Harrington, Gregorio Bernardi, D. Denisov, J. M. Heinmiller, Hal Evans, Thomas Ferbel, Vivek Jain, V. M. Korablev, Shashikant Dugad, Wendy Taylor, Norbert Wermes, Meenakshi Narain, Sherry Towers, N. Oshima, F. Badaud, Daniel Bloch, Daria Zieminska, Emmanuel Busato, Randy Ruchti, D. Kau, Emanuela Barberis, Kazunori Hanagaki, Dongliang Zhang, J. Zhu, D. Cutts, M. Vaupel, S. Söldner-Rembold, Cris W. Barnes, Jovan Mitrevski, D. Buchholz, Wagner Carvalho, R. D. Schamberger, G. Gutierrez, Y. D. Mutaf, O. Boeriu, I. A. Vasilyev, P. M. Perea, Gilvan Alves, Y. Kulik, K. J. Rani, K. Stevenson, A. Stone, M. P. Sanders, B. Spurlock, Tobias Golling, T. Scanlon, A. Alton, S. Kermiche, J. Lazoflores, Alberto Santoro, Sergio F Novaes, S. Uzunyan, Jong-Sung Yu, L. Stutte, J. G.R. Lima, A.S. Dyshkant, P. Mättig, Y. A. Yatsunenko, Paul Telford, Zeno Dixon Greenwood, Suman Bala Beri, Greg Landsberg, Vivian O'Dell, Nikola Makovec, A. Magerkurth, P. Tamburello, A. Zatserklyaniy, T. Toole, Pushpalatha C Bhat, Harrison Prosper, S. N. Gurzhiev, A. Juste, L. Groer, Todd Adams, Karl Jakobs, Reiner Hauser, R. Illingworth, S. Lager, B. S. Acharya, K. Gounder, J. R. Kalk, O. Atramentov, Anna Goussiou, P. Rubinov, M. A.C. Cummings, B. Hoeneisen, Lee Sawyer, A. A. Mayorov, S. Desai, P. Lewis, M. C. Cousinou, J. Snow, Christophe Clement, Sergey Burdin, W. M. Van Leeuwen, Shuichi Kunori, S. P. Denisov, M. Merkin, M. Strovink, Alexander Khanov, S. Uvarov, H. L. Melanson, Viatcheslav Stolin, Yurii Maravin, Vladimir Gavrilov, M. Wegner, J. Molina, S. J. Hong, S.A. Kahn, K. M. Chan, Christian Zeitnitz, B. Quinn, F. Charles, H. E. Fisk, J. Dyer, Gregory R Snow, A. Leflat, V. M. Abazov, V. Shary, Christos Leonidopoulos, Cristina Galea, J. Womersley, G. Savage, M. Demarteau, Carmen García, J. Torborg, S. Fu, R. Bernhard, D. A. Wijngaarden, Pedrame Bargassa, S. Tentindo-Repond, K. Soustruznik, Marcel Vreeswijk, N. J. Buchanan, J. Wittlin, Gordon Watts, V. Sirotenko, S. Greder, Nikos Varelas, Bing Zhou, P.F. Ermolov, Carlos Avila, S. Sumowidagdo, Sabine Crépé-Renaudin, Makoto Tomoto, Alice Bean, Iain Alexander Bertram, F. Borcherding, A. C. Le Bihan, Michael Rijssenbeek, Tiefu Zhao, G. Steinbrück, Juan Estrada, G. Sajot, A. A. Schukin, T. Edwards, M. Wobisch, Aran Garcia-Bellido, K. Genser, Stephanie Beauceron, M. M. Kado, Raymond Brock, Boaz Klima, N. Oliveira, D. R. Claes, Gavin Davies, G. Hesketh, K. Bos, Marc Besancon, J. Temple, Ulrike Blumenschein, Philip Baringer, M. Cristetiu, Tulika Bose, O. V. Eroshin, Y. Song, Vipin Bhatnagar, D. Karmanov, Q. Xu, S. Jabeen, D. Wicke, P. L.M. Podesta-Lerma, V. N. Evdokimov, R. Beuselinck, S. Banerjee, S. Doulas, I. Hall, A. Chandra, Jean-Laurent Agram, L. Christofek, Phillip Gutierrez, Lev Uvarov, Kaushik De, R. J. Madaras, J. Fast, N. Lahrichi, R. Partridge, X. Zhang, Q. Z. Li, C. Noeding, Sarah Catherine Eno, D. Chapin, Horst Severini, Brad Abbott, I. Blackler, Christian Autermann, Pierre Petroff, M. Verzocchi, M. A. Strang, Richard B. Lipton, J. A. Parsons, V. L. Malyshev, Jan Stark, R. Van Kooten, H. S. Mao, M. D. Corcoran, R. W. Moore, J. N. Butler, Henry Lubatti, E. Thomas, P. D. Grannis, H. Weerts, Michael Martens, Z. M. Wang, M. Binder, J. Bystricky, A. Zieminski, J. Steele, S. Sengupta, J. Huang, A. Cothenet, R. A. Sidwell, Marvin Johnson, M. Warsinsky, A. Sanchez-Hernandez, S. N. Fatakia, Jaebeom Park, A. V. Kozelov, V. M. Podstavkov, V. Zutshi, M. Fortner, B. Clement, N. W. Reay, Andrew Askew, Zhengguo Zhao, Brigitte Vachon, D. Shpakov, T. Nunnemann, B. Baldin, Mansoora Shamim, W. M. Lee, A. Kharchilava, Andre Sopczak, Sergey Kuleshov, B. Andrieu, Elliott Cheu, Victor Daniel Elvira, Y. Hu, Ph Gris, M. B. Przybycien, V. Buescher, Sudhir Malik, Ia Iashvili, Jean-Roch Vlimant, Rodney Walker, D. A. Stoyanova, A. S. Turcot, D. Chakraborty, Michael Begel, Don Lincoln, Erich Varnes, Eduardo De Moraes Gregores, P. W. Balm, G. A. Davis, Boris Tuchming, Limin Wang, T. H. Burnett, Ulrich Heintz, H. Jöstlein, Frank Filthaut, M. Diesburg, Jing Li, L. Duflot, L. Phaf, N.V. Mokhov, B. Åsman, Frederic Deliot, Christopher George Tully, A. P. Heinson, Y. M. Kharzheev, Patrick Slattery, G. J. Otero y Garzón, G. S. Muanza, R. E. Hall, and Terry Richard Wyatt

Subjects
Quark, Nuclear and High Energy Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Tevatron, General Physics and Astronomy, Elementary particle, 7. Clean energy, 01 natural sciences, Bottom quark, Standard Model, law.invention, Nuclear physics, law, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Collider, Boson, Physics, Jet (fluid), Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Pseudorapidity, High Energy Physics::Experiment, Lepton
Abstract

The ratio of the cross section for $p\bar{p}$ interactions producing a $Z$ boson and at least one $b$ quark jet to the inclusive $Z+{\rm jet}$ cross section is measured using $4.2\ {\rm fb}^{-1}$ of $p\bar{p}$ collisions collected with the \dzero\ detector at the Fermilab Tevatron collider at $\sqrt{s}=1.96$ TeV. The $Z\rightarrow\ell^+\ell^-$ candidate events with at least one $b$ jet are discriminated from $Z+$ charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is $0.0193\pm0.0027$ for events having a jet with transverse momentum $\pt > 20 \GeV$ and pseudorapidity $|\eta| \leq 2.5$, which is the most precise to date and is consistent with theoretical predictions.

Published
2011
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