Showing 2271 - 2280 of 5708 Items
Observation of B0 decay to two charmless mesons
Date: 1993-01-01
Creator: M. Battle, J. Ernst, H. Kroha, Y. Kwon, S., Roberts, K. Sparks, E. H. Thorndike, C. H. Wang, J. Dominick, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, P. Zadorozhny, M. Artuso, D. He, M. Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, M. Thulasidas, G. Vasseur, G. Zhu, J. Bartelt, S. E. Csorna
Access: Open access
- We report results from a search for the decays B0→π+π-, B0→K+π-, and B0→K+K-. We find 90% confidence level upper limits on the branching fractions, Bππ<2.9×10-5, BKπ<2.6×10-5, and BKK<0.7×10-5. While there is no statistically significant signal in the individual modes, the sum of Bππ and BKπ exceeds zero with a significance of more than 4 standard deviations, indicating that we have observed charmless hadronic B decays. © 1993 The American Physical Society.
Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors
Date: 1993-01-01
Creator: S. Sanghera, T. Skwarnicki, R. Stroynowski, M. Artuso, M., Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, F. Muheim, S. Playfer, Y. Rozen, P. Rubin, S. Stone, M. Thulasidas, W. M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, P. Sheldon, D. S. Akerib, B. Barish, M. Chadha, D. F. Cowen, G. Eigen, J. S. Miller, J. Urheim, A. J. Weinstein, D. Acosta
Access: Open access
- We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay. © 1993 The American Physical Society.
Being and Salvation: Environmental Implications of Martin Heidegger's Thought Access to this record is restricted to members of the Bowdoin community. Log in here to view.
- Restriction End Date: 2027-06-01
Date: 2024-01-01
Creator: Eleanor S. Huntington
Access: Access restricted to the Bowdoin Community
Political Polupragmones: Busybody Athenians, Meddlesome Citizenship, and Epistemic Democracy in Classical Athens
Date: 2016-01-01
Creator: Harry D Rube
Access: Open access
- The figure of the πολυπράγμων, the overactive, over-engaged, or meddlesome democratic citizen, is a literary trope that emerges in Classical Athenian literature in the 5th and 4th centuries B.C. This project seeks to use the πολυπράγμων as an entry point into understanding Athenian attitudes toward citizenship and socially acceptable political behaviors in Athens’ democratic era. I explore the history and usage of the term πολυπράγμων, and the associated characteristic of πολυπραγμοσύνη (meddlesomeness), and its synonyms and antecedents. I demonstrate that to be labeled πολυπράγμων is a term of social restraint—one is named a πολυπράγμων if they do not “mind their own business.” In 5th century Athens such an admonition is primarily political. It refers to and demonstrates the existence of a contested definition of what is and what is not acceptable political behavior on behalf of the non-elite citizens of Athens. Through a reading of Plato’s dialogues and an analysis of other Athenian literary productions describing street-level social and political interactions in the fourth century, I endeavor to demonstrate in the second half of this thesis that the behaviors of social inquisitiveness, over-activity, and the negative characteristics attributed to the πολυπράγμων by contemporary writers such as Plato, could actually have served to increase the common knowledge and cohesiveness of the Athenian city-state. To do this, I consider the πολυπράγμων through the lens of modern scholarship and social science that considers Athens as an “epistemic democracy” concerned with aggregating and employing politically useful information.
Vienna Secession
Date: 2023-01-01
Creator: Bobby Murray
Access: Open access
- ‘Vienna Secession’ is a poetry manuscript broken into four distinct sections: “The Vienna Secession,” “Waltzes,” “Short Talks,” and “Other.” Most of the manuscript is in dialogue with Secessionist artists, or the ethos of the Vienna Secession. However, others, like the haikus, are exercises of form and responses to other contemporary poets, such as Robert Hass or Richard Wright. The manuscript explores different genres, including ekphrasis, prose, and experimental poems, like the ‘Waltzes,’ which employ 3/4 meter to emulate the Viennese waltz. The heart of the project is its sonic awareness—pulling from W.H. Auden, August Kleinzahler, and other musically-oriented poets. Outside the ‘Short Talks’ section, the poems’ sonic and phonetic qualities are integral to their style and meaning. At times this may be subtle, or even indiscernible, but overall, careful attention is paid to the sound and rhythm of the poems. The manuscript should be considered in both musical and literary terms. Rainer Maria Rilke’s ‘Duino Elegies’ and advice in ‘Letters to a Young Poet’ are instrumental in creating these poems. As a ‘first statement,’ many poems battle with the insecurities of a young poet and exemplify the grapple of an aspiring creative. The poems consider antiquated things through contemporary frameworks; relationships, communication, masculinity, and suffering, to name a few. A general incentive of the work is to provide fresh perspectives on historical art and to import its most apposite sentiments into our current moment.