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1. First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment

Author

MICE Collaboration, D. Adams, D. Adey, R. Asfandiyarov, G. Barber, A. de Bari, R. Bayes, V. Bayliss, R. Bertoni, V. Blackmore, A. Blondel, J. Boehm, M. Bogomilov, M. Bonesini, C. N. Booth, D. Bowring, S. Boyd, T. W. Bradshaw, A. D. Bross, C. Brown, G. Charnley, G. T. Chatzitheodoridis, F. Chignoli, M. Chung, D. Cline, J. H. Cobb, D. Colling, N. Collomb, P. Cooke, M. Courthold, L. M. Cremaldi, A. DeMello, A. J. Dick, A. Dobbs, P. Dornan, F. Drielsma, K. Dumbell, M. Ellis, F. Filthaut, P. Franchini, B. Freemire, A. Gallagher, R. Gamet, R. B. S. Gardener, S. Gourlay, A. Grant, J. R. Greis, S. Griffiths, P. Hanlet, G. G. Hanson, T. Hartnett, C. Heidt, P. Hodgson, C. Hunt, S. Ishimoto, D. Jokovic, P. B. Jurj, D. M. Kaplan, Y. Karadzhov, A. Klier, Y. Kuno, A. Kurup, P. Kyberd, J-B. Lagrange, J. Langlands, W. Lau, D. Li, Z. Li, A. Liu, K. Long, T. Lord, C. Macwaters, D. Maletic, B. Martlew, J. Martyniak, R. Mazza, S. Middleton, T. A. Mohayai, A. Moss, A. Muir, I. Mullacrane, J. J. Nebrensky, D. Neuffer, A. Nichols, J. C. Nugent, A. Oates, D. Orestano, E. Overton, P. Owens, V. Palladino, M. Palmer, J. Pasternak, V. Pec, C. Pidcott, M. Popovic, R. Preece, S. Prestemon, D. Rajaram, S. Ricciardi, M. Robinson, C. Rogers, K. Ronald, P. Rubinov, H. Sakamoto, D. A. Sanders, A. Sato, M. Savic, P. Snopok, P. J. Smith, F. J. P. Soler, Y. Song, T. Stanley, G. Stokes, V. Suezaki, D. J. Summers, C. K. Sung, J. Tang, J. Tarrant, I. Taylor, L. Tortora, Y. Torun, R. Tsenov, M. Tucker, M. A. Uchida, S. Virostek, G. Vankova-Kirilova, P. Warburton, S. Wilbur, A. Wilson, H. Witte, C. White, C. G. Whyte, X. Yang, A. R. Young, and M. Zisman

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The Muon Ionization Cooling Experiment (MICE) collaboration seeks to demonstrate the feasibility of ionization cooling, the technique by which it is proposed to cool the muon beam at a future neutrino factory or muon collider. The emittance is measured from an ensemble of muons assembled from those that pass through the experiment. A pure muon ensemble is selected using a particle-identification system that can reject efficiently both pions and electrons. The position and momentum of each muon are measured using a high-precision scintillating-fibre tracker in a 4 T solenoidal magnetic field. This paper presents the techniques used to reconstruct the phase-space distributions in the upstream tracking detector and reports the first particle-by-particle measurement of the emittance of the MICE Muon Beam as a function of muon-beam momentum.

Published
2019
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2. Epoxy IR Filters for Superconducting Resonators

Author

G. Spahn, N. Kurinsky, S. Lewis, D. Bowring, and M. Hollister

Subjects
General Materials Science, Condensed Matter Physics, Atomic and Molecular Physics, and Optics
Published
2022

4. Operation of normal-conducting rf cavities in multi-Tesla magnetic fields for muon ionization cooling: A feasibility demonstration

Author

D. Bowring, A. Bross, P. Lane, M. Leonova, A. Moretti, D. Neuffer, R. Pasquinelli, D. Peterson, M. Popovic, D. Stratakis, K. Yonehara, A. Kochemirovskiy, Y. Torun, C. Adolphsen, L. Ge, A. Haase, Z. Li, D. Martin, M. Chung, D. Li, T. Luo, B. Freemire, A. Liu, and M. Palmer

Subjects
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Ionization cooling is the preferred method for producing bright muon beams. This cooling technique requires the operation of normal conducting, radio-frequency (rf) accelerating cavities within the multi-tesla fields of dc solenoid magnets. Under these conditions, cavities exhibit increased susceptibility to rf breakdown, which can damage cooling channel components and imposes limits on channel length and transmission efficiency. We report, for the first time, stable high-vacuum, normal-conducting cavity operation at gradients of 50 MV/m in an external magnetic field of three tesla, through the use of beryllium cavity elements. This eliminates a significant technical risk that has previously been inherent in ionization cooling channel designs.

Published
2020
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5. Axion Dark Matter Experiment: Detailed design and operations

Author

R. Khatiwada, D. Bowring, A. S. Chou, A. Sonnenschein, W. Wester, D. V. Mitchell, T. Braine, C. Bartram, R. Cervantes, N. Crisosto, N. Du, L. J. Rosenberg, G. Rybka, J. Yang, D. Will, S. Kimes, G. Carosi, N. Woollett, S. Durham, L. D. Duffy, R. Bradley, C. Boutan, M. Jones, B. H. LaRoque, N. S. Oblath, M. S. Taubman, J. Tedeschi, John Clarke, A. Dove, A. Hashim, I. Siddiqi, N. Stevenson, A. Eddins, S. R. O’Kelley, S. Nawaz, A. Agrawal, A. V. Dixit, J. R. Gleason, S. Jois, P. Sikivie, N. S. Sullivan, D. B. Tanner, J. A. Solomon, E. Lentz, E. J. Daw, M. G. Perry, J. H. Buckley, P. M. Harrington, E. A. Henriksen, K. W. Murch, and G. C. Hilton

Subjects
Quantum Physics, High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Quantum Physics (quant-ph), Instrumentation, Instrumentation and Methods for Astrophysics (astro-ph.IM), High Energy Physics - Experiment
Abstract

Axion Dark Matter eXperiment (ADMX) ultra low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the $2.66$ to $3.1$ $\mu$eV mass range with Dine-Fischler-Srednicki-Zhitnisky (DFSZ) sensitivity Ref. [1,2]. Therefore, it is the most sensitive axion search experiment to date in this mass range. We discuss the technological advances made in the last several years to achieve this sensitivity, which includes the implementation of components, such as state-of-the-art quantum limited amplifiers and a dilution refrigerator. Furthermore, we demonstrate the use of a frequency tunable Microstrip Superconducting Quantum Interference Device (SQUID) Amplifier (MSA), in Run 1A, and a Josephson Parametric Amplifier (JPA), in Run 1B, along with novel analysis tools that characterize the system noise temperature., Comment: 23 pages, 28 figures

Published
2022

6. Lattice design and expected performance of the Muon Ionization Cooling Experiment demonstration of ionization cooling

Author

M. Bogomilov, R. Tsenov, G. Vankova-Kirilova, Y. Song, J. Tang, Z. Li, R. Bertoni, M. Bonesini, F. Chignoli, R. Mazza, V. Palladino, A. de Bari, G. Cecchet, D. Orestano, L. Tortora, Y. Kuno, S. Ishimoto, F. Filthaut, D. Jokovic, D. Maletic, M. Savic, O. M. Hansen, S. Ramberger, M. Vretenar, R. Asfandiyarov, A. Blondel, F. Drielsma, Y. Karadzhov, G. Charnley, N. Collomb, K. Dumbell, A. Gallagher, A. Grant, S. Griffiths, T. Hartnett, B. Martlew, A. Moss, A. Muir, I. Mullacrane, A. Oates, P. Owens, G. Stokes, P. Warburton, C. White, D. Adams, R. J. Anderson, P. Barclay, V. Bayliss, J. Boehm, T. W. Bradshaw, M. Courthold, V. Francis, L. Fry, T. Hayler, M. Hills, A. Lintern, C. Macwaters, A. Nichols, R. Preece, S. Ricciardi, C. Rogers, T. Stanley, J. Tarrant, M. Tucker, A. Wilson, S. Watson, R. Bayes, J. C. Nugent, F. J. P. Soler, R. Gamet, G. Barber, V. J. Blackmore, D. Colling, A. Dobbs, P. Dornan, C. Hunt, A. Kurup, J.-B. Lagrange, K. Long, J. Martyniak, S. Middleton, J. Pasternak, M. A. Uchida, J. H. Cobb, W. Lau, C. N. Booth, P. Hodgson, J. Langlands, E. Overton, M. Robinson, P. J. Smith, S. Wilbur, A. J. Dick, K. Ronald, C. G. Whyte, A. R. Young, S. Boyd, P. Franchini, J. R. Greis, C. Pidcott, I. Taylor, R. B. S. Gardener, P. Kyberd, J. J. Nebrensky, M. Palmer, H. Witte, A. D. Bross, D. Bowring, A. Liu, D. Neuffer, M. Popovic, P. Rubinov, A. DeMello, S. Gourlay, D. Li, S. Prestemon, S. Virostek, B. Freemire, P. Hanlet, D. M. Kaplan, T. A. Mohayai, D. Rajaram, P. Snopok, V. Suezaki, Y. Torun, Y. Onel, L. M. Cremaldi, D. A. Sanders, D. J. Summers, G. G. Hanson, and C. Heidt

Subjects
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Muon beams of low emittance provide the basis for the intense, well-characterized neutrino beams necessary to elucidate the physics of flavor at a neutrino factory and to provide lepton-antilepton collisions at energies of up to several TeV at a muon collider. The international Muon Ionization Cooling Experiment (MICE) aims to demonstrate ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the muon beam at such facilities. In an ionization-cooling channel, the muon beam passes through a material in which it loses energy. The energy lost is then replaced using rf cavities. The combined effect of energy loss and reacceleration is to reduce the transverse emittance of the beam (transverse cooling). A major revision of the scope of the project was carried out over the summer of 2014. The revised experiment can deliver a demonstration of ionization cooling. The design of the cooling demonstration experiment will be described together with its predicted cooling performance.

Published
2017
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8. Extended Search for the Invisible Axion with the Axion Dark Matter Experiment

Author

L. D. Duffy, S. Kimes, Joseph Gleason, A. Eddins, L. J. Rosenberg, Matthew Jones, W. C. Wester, Gray Rybka, J. A. Solomon, Pierre Sikivie, Nathan Woollett, Kater Murch, Jihui Yang, Akash Dixit, B. H. LaRoque, N. S. Oblath, Erik Henriksen, T. Braine, N. Stevenson, E. J. Daw, M. S. Taubman, Andrew Sonnenschein, D. Bowring, Erik W. Lentz, Irfan Siddiqi, N. Du, J. H. Buckley, Gianpaolo Carosi, John Clarke, D. B. Tanner, Aaron S. Chou, Ankur Agrawal, Shahid Nawaz, Allison Dove, N. Crisosto, S. R. O'Kelley, R. Khatiwada, S. Jois, Neil Sullivan, P. M. Harrington, C. Boutan, Richard F. Bradley, and R. Cervantes

Subjects
Physics, Quantum chromodynamics, Coupling, Particle physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Axion Dark Matter Experiment, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, High Energy Physics - Experiment, Galactic halo, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Strong CP problem, Parametric oscillator, 010306 general physics, Axion, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This paper reports on a cavity haloscope search for dark matter axions in the galactic halo in the mass range $2.81$-$3.31$ ${\mu}eV$. This search excludes the full range of axion-photon coupling values predicted in benchmark models of the invisible axion that solve the strong CP problem of quantum chromodynamics, and marks the first time a haloscope search has been able to search for axions at mode crossings using an alternate cavity configuration. Unprecedented sensitivity in this higher mass range is achieved by deploying an ultra low-noise Josephson parametric amplifier as the first stage signal amplifier.

Published
2020

9. Axion Dark Matter eXperiment: Run 1B Analysis Details

Author

Pierre Sikivie, R. Cervantes, M. G. Perry, Ankur Agrawal, J. H. Buckley, M. S. Taubman, R. Khatiwada, Allison Dove, Kater Murch, N. Stevenson, Neil Sullivan, E. J. Daw, D. Bowring, S. R. O'Kelley, P. M. Harrington, Maxim Goryachev, Joseph Gleason, Matthew Jones, Ben T. McAllister, N. Crisosto, C. Boutan, W. C. Wester, L. D. Duffy, B. H. LaRoque, Nathan Woollett, N. Du, N. S. Oblath, Aaron S. Chou, A. Eddins, G. Leum, Erik Henriksen, Gray Rybka, L. J. Rosenberg, Chelsea Bartram, John Clarke, S. Jois, Irfan Siddiqi, Akash Dixit, Andrew Sonnenschein, D. B. Tanner, Shahid Nawaz, Jihui Yang, J. A. Solomon, T. Braine, Michael E. Tobar, Erik W. Lentz, and Gianpaolo Carosi

Subjects
Physics, Particle physics, Range (particle radiation), Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Axion Dark Matter Experiment, Dark matter, FOS: Physical sciences, 01 natural sciences, Magnetic field, 0103 physical sciences, 010306 general physics, Astrophysics - Instrumentation and Methods for Astrophysics, Axion, Instrumentation and Methods for Astrophysics (astro-ph.IM), Microwave cavity, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Searching for axion dark matter, the ADMX collaboration acquired data from January to October 2018, over the mass range 2.81--3.31 $\mu$eV, corresponding to the frequency range 680--790 MHz. Using an axion haloscope consisting of a microwave cavity in a strong magnetic field, the ADMX experiment excluded Dine-Fischler-Srednicki-Zhitnisky (DFSZ) axions at 100% dark matter density over this entire frequency range, except for a few gaps due to mode crossings. This paper explains the full ADMX analysis for Run 1B, motivating analysis choices informed by details specific to this run., Comment: 17 pages, 17 figures

Published
2020
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10. First Principles Modeling of RFQ Cooling System and Resonant Frequency Responses for Fermilab’s PIP-II Injector Test

Author

J. Steimel, D. Bowring, Brian Chase, Auralee Edelen, Sandra Biedron, Jonathan Edelen, and Stephen Milton

Subjects
Nuclear and High Energy Physics, Engineering, 010308 nuclear & particles physics, business.industry, Injector, 01 natural sciences, law.invention, Data acquisition, Nuclear Energy and Engineering, Radio-frequency quadrupole, law, Control system, 0103 physical sciences, Electronic engineering, Water cooling, Radio frequency, Transient response, Fermilab, Electrical and Electronic Engineering, business, Simulation
Abstract

In this paper we develop an a priori method for simulating dynamic resonant frequency and temperature responses in a radio frequency quadrupole (RFQ) and its associated water-based cooling system respectively. Our model provides a computationally efficient means to evaluate the transient response of the RFQ over a large range of system parameters. The model was constructed prior to the delivery of the PIP-II Injector Test RFQ and was used to aid in the design of the water-based cooling system, data acquisition system, and resonance control system. Now that the model has been validated with experimental data, it can confidently be used to aid in the design of future RFQ resonance controllers and their associated water-based cooling systems. Without any empirical fitting, it has demonstrated the ability to predict absolute temperature and frequency changes to 11% accuracy on average, and relative changes to 7% accuracy.

Published
2017

11. Piezoelectrically Tuned Multimode Cavity Search for Axion Dark Matter

Author

Pierre Sikivie, S. Kimes, L. J. Rosenberg, Gray Rybka, P. M. Harrington, C. Boutan, B. H. LaRoque, Richard F. Bradley, Andrew Sonnenschein, Jihui Yang, N. Du, Akash Dixit, S. Jois, Erik W. Lentz, R. Ottens, John Clarke, N. Force, Neil Sullivan, R. Khatiwada, E. J. Daw, D. B. Tanner, Nathan Woollett, Matthew Jones, D. Bowring, Gianpaolo Carosi, I. Stern, W. C. Wester, R. Cervantes, Joseph Gleason, N. S. Oblath, Aaron S. Chou, Ankur Agrawal, S. R. O'Kelley, and N. Crisosto

Subjects
Physics, Particle physics, Physics - Instrumentation and Detectors, Photon, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Axion Dark Matter Experiment, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Noise (electronics), High Energy Physics - Experiment, Standard Model, Magnetic field, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Axion, Microwave, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The $\mu$eV axion is a well-motivated extension to the standard model. The Axion Dark Matter eXperiment (ADMX) collaboration seeks to discover this particle by looking for the resonant conversion of dark-matter axions to microwave photons in a strong magnetic field. In this Letter, we report results from a pathfinder experiment, the ADMX "Sidecar," which is designed to pave the way for future, higher mass, searches. This testbed experiment lives inside of and operates in tandem with the main ADMX experiment. The Sidecar experiment excludes masses in three widely spaced frequency ranges (4202-4249, 5086-5799, and 7173-7203 MHz). In addition, Sidecar demonstrates the successful use of a piezoelectric actuator for cavity tuning. Finally, this publication is the first to report data measured using both the TM$_{010}$ and TM$_{020}$ modes., Comment: 7 Pages, 4 figures

Published
2019
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12. Response to NITRD, NCO, NSF Request for Information on 'Update to the 2016 National Artificial Intelligence Research and Development Strategic Plan'

Author

Kevin Pedro, Nhan Tran, W. L. K. Wu, Stephen Mrenna, Camille Avestruz, A. Scheinker, B. Nord, James Annis, D. Elvira, Scott Dodelson, Chihway Chang, Panagiotis Spentzouris, Lindsey Gray, Oliver Gutsche, Gabriel Perdue, R. Kutschke, Risi Kondor, J. Einstein-Curtis, K. Genser, M. Franklin, Philip Harris, Rachel Mandelbaum, Clecio R. Bom, Jim Kowalkowski, D. Bowring, Laura Trouille, Lucianne M. Walkowicz, P. Fox, Arya Farahi, J. Amundson, A. Para, Shubhendu Trivedi, J. St. John, Jamie Kinney, Giuseppe Benedetto Cerati, H. Runesha, and João Caldeira

Subjects
Request for information, Strategic planning, Process (engineering), business.industry, Accountability, Artificial intelligence, business, National laboratory, Transparency (behavior), Field (computer science), Pace
Abstract

We present a response to the 2018 Request for Information (RFI) from the NITRD, NCO, NSF regarding the "Update to the 2016 National Artificial Intelligence Research and Development Strategic Plan." Through this document, we provide a response to the question of whether and how the National Artificial Intelligence Research and Development Strategic Plan (NAIRDSP) should be updated from the perspective of Fermilab, America's premier national laboratory for High Energy Physics (HEP). We believe the NAIRDSP should be extended in light of the rapid pace of development and innovation in the field of Artificial Intelligence (AI) since 2016, and present our recommendations below. AI has profoundly impacted many areas of human life, promising to dramatically reshape society --- e.g., economy, education, science --- in the coming years. We are still early in this process. It is critical to invest now in this technology to ensure it is safe and deployed ethically. Science and society both have a strong need for accuracy, efficiency, transparency, and accountability in algorithms, making investments in scientific AI particularly valuable. Thus far the US has been a leader in AI technologies, and we believe as a national Laboratory it is crucial to help maintain and extend this leadership. Moreover, investments in AI will be important for maintaining US leadership in the physical sciences.

Published
2018

13. Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment

Author

Pierre Sikivie, N. S. Oblath, D. B. Tanner, S. R. O'Kelley, R. Ottens, E. J. Daw, D. Bowring, W. C. Wester, Andrew Sonnenschein, R. Khatiwada, S. Jois, Gray Rybka, Nathan Woollett, N. Du, L. J. Rosenberg, Neil Sullivan, I. Stern, Aaron S. Chou, John Clarke, Akash Dixit, Erik W. Lentz, N. Force, N. Crisosto, Gianpaolo Carosi, Joseph Gleason, C. Boutan, Richard F. Bradley, and Gene C. Hilton

Subjects
Physics, Range (particle radiation), Particle physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Axion Dark Matter Experiment, High Energy Physics::Phenomenology, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Noise (electronics), High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics::Theory, 0103 physical sciences, 010306 general physics, Axion, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This Letter reports results from a haloscope search for dark matter axions with masses between 2.66 and 2.81 $\mu$eV. The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This unprecedented sensitivity is achieved by operating a large-volume haloscope at sub-kelvin temperatures, thereby reducing thermal noise as well as the excess noise from the ultra-low-noise SQUID amplifier used for the signal power readout. Ongoing searches will provide nearly definitive tests of the invisible axion model over a wide range of axion masses., Comment: 5 pages, 4 figures

Published
2018

14. Quantum Sensing for High Energy Physics

Author

Cynthia Jenks, Vesna Mitrovic, Matthew Dietrich, Paul D. Lett, Petra Merkel, Kevin J. O'Brien, Volodymyr Yefremenko, Roger Rusack, Mattia Checchin, Ian Shipsey, Sae Woo Nam, Nicholas A. Peters, Alexander Romanenko, Malcolm Boshier, Michael V. Fazio, Tenzin Rabga, David Underwood, Larry Lurio, Karen Byrum, John Zasadzinski, Gensheng Wang, Benjamin J. Lawrie, Jonathan King, Hogan Nguyen, Eve Kovacs, Howard Nicholson, Jeffrey R. Guest, Robert Wagner, Xuedan Ma, Amr S. Helmy, Andrew Sonnenschein, U. Patel, Jason W. Henning, Xufeng Zhang, Valerie Taylor, Yuekun Heng, Geoffrey T. Bodwin, C. M. Posada, Andrei Nomerotski, Jessica Metcalfe, Hal Finkel, Patrick J. Fox, Yuri Alexeev, Keith Schwab, Derek F. Jackson Kimball, Nathan Woollett, Karl van Bibber, Joseph Heremans, Akito Kusaka, Harry Weerts, David Hume, Zeeshan Ahmed, Jonathan Lewis, Pavel Lougovski, Marcel Demarteau, Roger O'Brient, John F. Mitchell, Ranjan Dharmapalan, Vishnu Zutshi, Gustavo Cancelo, Przemyslaw Bienias, D. Braga, Richard Kriske, Junqi Xie, Ron Harnik, Giorgio Apollinari, Kent D. Irwin, Vladan Vuletic, Gianpaolo Carosi, R. Tschirhart, Erik Shirokoff, Zelimir Djurcic, James E. Fast, M. Crisler, Sergei Chekanov, Junjia Ding, Karl K. Berggren, Jason M. Hogan, Asimina Arvanitaki, Aaron S. Chou, Donna Kubik, Holger Mueller, Johannes Hubmayr, Andrei Gaponenko, Michael L. Norman, Raphael C. Pooser, Salman Habib, Konrad Lehnert, Nick Karonis, Aashish A. Clerk, Peter Fierlinger, Raj Kettimuthu, Monika Schleier-Smith, J. Segal, David D. Awschalom, D. Bowring, Ian C. Cloët, S. Rescia, Edward May, Misun Min, Tijana Rajh, Sandeep Miryala, Bjoern Penning, Phay J. Ho, Andrew Geraci, Gerald Gabrielse, Christopher George Tully, Supratik Guha, Maurice Garcia-Sciveres, Jie Zhang, Thomas Cecil, John M. Doyle, Sergey Perverzev, C. L. Chang, Jimmy Proudfoot, and Antonino Miceli

Subjects
Physics, Particle physics, Quantum sensor, Experimental methods, Domain (software engineering)
Abstract

Report of the first workshop to identify approaches and techniques in the domain of quantum sensing that can be utilized by future High Energy Physics applications to further the scientific goals of High Energy Physics.

Published
2018

15. RF system for the MICE demonstration of ionisation cooling

Author

A. J. Dick, D. Bowring, P. Hanlet, Patrick Smith, Colin G. Whyte, R. Schultz, K. Dumbell, T. Anderson, Kenneth Long, Saad Alsari, David Peterson, A. Kurup, Alastair Grant, Ben Freemire, Derun Li, J. Volk, A. DeMello, R.J. Anderson, Alfred Moretti, Yagmur Torun, Tianhuan Luo, A. R. Young, Christopher G. White, Stephen Griffiths, T. Stanley, Milorad Popovic, D. J. Summers, A. Bross, Andrew Moss, Ralph J. Pasquinelli, A. Lambert, Kevin Ronald, Particle Physics and Astronomy Research Council (PPARC), Science and Technology Facilities Council (STFC), Imperial College Trust, Commission of the European Communities, Council for the Central Laboratory of the Research Councils' (CCLRC), and The Royal Society

Subjects
Accelerator Physics (physics.acc-ph), Technology, TK, FOS: Physical sciences, Context (language use), 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Engineering, law, 0103 physical sciences, diagnostics, Thermal emittance, physics.acc-ph, Physics, Muon, Science & Technology, 010308 nuclear & particles physics, RF accelerators, Particle accelerator, Engineering, Electrical & Electronic, muon accelerators, Physics::Accelerator Physics, Physics - Accelerator Physics, High Energy Physics::Experiment, Particle physics experiments, Beam emittance, Neutrino, ionisation cooling, Lepton
Abstract

Muon accelerators offer an attractive option for a range of future particle physics experiments. They can enable high energy (TeV+) high energy lepton colliders whilst mitigating the difficulty of synchrotron losses, and can provide intense beams of neutrinos for fundamental physics experiments investigating the physics of flavor. The method of production of muon beams results in high beam emittance which must be reduced for efficient acceleration. Conventional emittance control schemes take too long, given the very short (2.2 microsecond) rest lifetime of the muon. Ionisation cooling offers a much faster approach to reducing particle emittance, and the international MICE collaboration aims to demonstrate this technique for the first time. This paper will present the MICE RF system and its role in the context of the overall experiment., Comment: 2 pp

Published
2018

16. Expression of Interest for Evolution of the Mu2e Experiment

Author

R. Bonventre, G. Lukicov, R. Culbertson, P. Q. Hung, Brian Pollack, R. Tschirhart, A. Lucà, S. Giovannella, A. Mazzacane, Michael Schmitt, S. Donati, L. Xia, S. Boi, Y. Wang, K. S. Khaw, P. Murat, F. C. Porter, V. Lombardo, S. Mueller, Z. Usubov, Mayda Velasco, J. Whitmore, Gianantonio Pezzullo, B. Kiburg, Y. Oksuzian, J. P. Miller, Rashid M. Djilkibaev, M. Röhrken, David Neuffer, V. Giusti, J. Bono, R. Hooper, L. Harkness-Brennan, P. Fabbricatore, C. Gatto, G. Drake, D. Ambrose, M. Jones, M. Jenkins, Manolis Kargiantoulakis, J. F. Caron, S. Denisov, K. Heller, G. Horton-Smith, D. Glenzinski, F. Abusalma, S. Demers, C. Bloise, Dmitri Denisov, R. Coleman, K. L. Byrum, Ren-Yuan Zhu, A. Gaponenko, Markus Frank, Y. I. Davydov, Aji Daniel, R. Ciolini, V. Evdokimov, S. Miscetti, B. Echenard, D. Pasciuto, E. Diociaiuti, R. Zwaska, Steven Werkema, A. Artikov, D. Cronin-Hennessy, V. Zutshi, M. Ricci, D. Lin, Henry Glass, Richard L. Talaga, M. A. Cummings, Vitaly Pronskikh, A. Popov, P. Winter, D. Stratakis, Anna Pla-Dalmau, A. Edmonds, James L. Popp, N. H. Tran, L. Goodenough, E. Pedreschi, Luca Morescalchi, G. C. Blazey, D. G. Hitlin, John Quirk, D. Chokheli, F. Spinella, E. Prebys, K. R. Lynch, D. Pushka, A. Saputi, J. Mott, V. Nagaslaev, F. Happacher, S. Di Falco, M. Campbell, F. Cervelli, D. N. Brown, R. H. Bernstein, C. Hu, D. Hedin, Robert K. Kutschke, A. Hocker, J. Kozminski, M. Martini, A. Ferrari, R. Ehrlich, Thomas Strauss, Yu.G. Kolomensky, T. A. Bolton, I. Logashenko, Ed V. Hungerford, R. L. Wagner, D. Bowring, Z. Giorgio, E. C. Dukes, R. Donghia, K. Ciampa, V. Tereshchenko, L. Zhang, V. Rusu, M. Lancaster, Gregory Rakness, R. E. Ray, and I. Sarra

Subjects
Particle physics, Upgrade, Leverage (negotiation), Physics::Instrumentation and Detectors, Computer science, Mu2e, Detector, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Sensitivity (control systems), Order of magnitude, Lepton
Abstract

We propose an evolution of the Mu2e experiment, called Mu2e-II, that would leverage advances in detector technology and utilize the increased proton intensity provided by the Fermilab PIP-II upgrade to improve the sensitivity for neutrinoless muon-to-electron conversion by one order of magnitude beyond the Mu2e experiment, providing the deepest probe of charged lepton flavor violation in the foreseeable future. Mu2e-II will use as much of the Mu2e infrastructure as possible, providing, where required, improvements to the Mu2e apparatus to accommodate the increased beam intensity and cope with the accompanying increase in backgrounds.

Published
2018

17. Operation of normal-conducting RF cavities in multi-tesla magnetic fields for muon ionization cooling: a feasibility demonstration

Author

Andrew Haase, David Martin, Milorad Popovic, Katsuya Yonehara, Tianhuan Luo, Moses Chung, David Peterson, A. D. Bross, Derun Li, Chris Adolphsen, Ao Liu, Yagmur Torun, Peter Lane, Zenghai Li, David Neuffer, D. Bowring, M. Leonova, Ralph J. Pasquinelli, M.A. Palmer, Lixin Ge, Alexey Kochemirovskiy, Alfred Moretti, Diktys Stratakis, and Ben Freemire

Subjects
Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, Materials science, Muon, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Surfaces and Interfaces, Magnetic field, Nuclear physics, lcsh:QC770-798, Physics::Accelerator Physics, Physics - Accelerator Physics, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Ionization cooling, Physics::Atomic Physics
Abstract

Ionization cooling is the preferred method for producing bright muon beams. This cooling technique requires the operation of normal conducting, radio-frequency (RF) accelerating cavities within the multi-tesla fields of DC solenoid magnets. Under these conditions, cavities exhibit increased susceptibility to RF breakdown, which can damage channel components and imposes limits on channel length and transmission efficiency. We present a solution to the problem of breakdown in strong magnetic fields. We report, for the first time, stable high-vacuum, copper cavity operation at gradients above 50 MV/m and in an external magnetic field of three tesla. This eliminates a significant technical risk that has previously been inherent in ionization cooling channel designs., Comment: 7 pages, 7 figures

Published
2018
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19. Tests of CPT and Quantum Mechanics: experiment

Author

M. Moulson, A. De Santis, Francesco Lacava, Juliet Lee-Franzini, C. Forti, F. Perfetto, M. Napolitano, M. A. Matsyuk, Andrea Doria, Luca Tortora, V. V. Kulikov, Enrico Pasqualucci, B. Valeriani, F. Cervelli, Ludovico Pontecorvo, M. Testa, G. Lanfranchi, G. Venanzoni, A. Di Domenico, E. De Lucia, M. L. Ferrer, P. De Simone, P. Campana, S. Dell'Agnello, M. Martemianov, Margherita Primavera, Paolo Santangelo, W. Mei, S. Chi, S. Giovannella, F. Murtas, E. Spiriti, L. Passalacqua, D. Leone, P. Massarotti, T. Spadaro, S. Bocchetta, Barbara Sciascia, M. Martini, P. Branchini, M. Dreucci, M. Barva, S. Fiore, F. Nguyen, A. G. Denig, Stefano Veneziano, D. Bowring, E. Graziani, S. Bertolucci, S. Ventura, Claudio Gatti, A. Ventura, R. Messi, G. Chiefari, E. Santovetti, M. Palutan, C. Di Donato, T. Capussela, G. Capon, B. Di Micco, C. Bacci, Cesare Bini, Filippo Ceradini, G. Carboni, S. Conetti, W. Kluge, S. Di Falco, G. Felici, M. Incagli, R. D. Schamberger, P. Beltrame, S. Miscetti, G. Saracino, Fabrizio Scuri, Paolo Ciambrone, F. Ambrosino, M. Antonelli, R. Caloi, S. Meola, G. Finocchiaro, A. Antonelli, A.L. Sibidanov, I. Villella, V. Bocci, M. Tabidze, G. De Zorzi, A. Passeri, P. Gauzzi, R. Versaci, A. Farilla, Igor Sfiligoi, Edoardo Gorini, F. Bossi, G. Xu, C. Bloise, P. Franzini, S. Müller, S. A. Bulychjov, G. Bencivenni, Vincenzo Patera, A. Sciubba, P. Valente, and A. Ferrari

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Quantum decoherence, T-symmetry, CPT symmetry, Quantum mechanics, High Energy Physics::Phenomenology, Quantum interference, Time evolution, High Energy Physics::Experiment, Atomic and Molecular Physics, and Optics, Communication channel
Abstract

Neutral kaons provide one of the systems most sensitive to quantum mechanics and CPT violation. Models predicting quantum mechanics violation, also related to CPT violation, have been tested at the CPLEAR and KLOE experiments. In this report results of CPLEAR obtained by studying the time evolution of single and two entangled kaons are reviewed. New or improved limits on decoherence and CPT violation parameters have been obtained by KLOE studying the quantum interference in the channel ϕ → K S K L → π + π − π + π − . No deviations from the expectations of quantum mechanics and CPT symmetry have been observed.

Published
2007

20. Electron-muon ranger: performance in the MICE muon beam

Author

D. Adams, A. Alekou, M. Apollonio, R. Asfandiyarov, G. Barber, P. Barclay, A. de Bari, R. Bayes, V. Bayliss, P. Bene, R. Bertoni, V.J. Blackmore, A. Blondel, S. Blot, M. Bogomilov, M. Bonesini, C.N. Booth, D. Bowring, S. Boyd, T.W. Bradshaw, U. Bravar, A.D. Bross, F. Cadoux, M. Capponi, T. Carlisle, G. Cecchet, C. Charnley, F. Chignoli, D. Cline, J.H. Cobb, G. Colling, N. Collomb, L. Coney, P. Cooke, M. Courthold, L.M. Cremaldi, S. Debieux, A. DeMello, A. Dick, A. Dobbs, P. Dornan, F. Drielsma, F. Filthaut, T. Fitzpatrick, P. Franchini, V. Francis, L. Fry, A. Gallagher, R. Gamet, R. Gardener, S. Gourlay, A. Grant, J.S. Graulich, J. Greis, S. Griffiths, P. Hanlet, O.M. Hansen, G.G. Hanson, T.L. Hart, T. Hartnett, T. Hayler, C. Heidt, M. Hills, P. Hodgson, C. Hunt, C. Husi, A. Iaciofano, S. Ishimoto, G. Kafka, D.M. Kaplan, Y. Karadzhov, Y.K. Kim, Y. Kuno, P. Kyberd, J.-B. Lagrange, J. Langlands, W. Lau, M. Leonova, D. Li, A. Lintern, M. Littlefield, K. Long, T. Luo, C. Macwaters, B. Martlew, J. Martyniak, F. Masciocchi, R. Mazza, S. Middleton, A. Moretti, A. Moss, A. Muir, I. Mullacrane, J.J. Nebrensky, D. Neuffer, A. Nichols, R. Nicholson, L. Nicola, E. Noah Messomo, J.C. Nugent, A. Oates, Y. Onel, D. Orestano, E. Overton, P. Owens, V. Palladino, J. Pasternak, F. Pastore, C. Pidcott, M. Popovic, R. Preece, S. Prestemon, D. Rajaram, S. Ramberger, M.A. Rayner, S. Ricciardi, T.J. Roberts, M. Robinson, C. Rogers, K. Ronald, K. Rothenfusser, P. Rubinov, P. Rucinski, H. Sakamato, D.A. Sanders, R. Sandström, E. Santos, T. Savidge, P.J. Smith, P. Snopok, F.J.P. Soler, D. Speirs, T. Stanley, G. Stokes, D.J. Summers, J. Tarrant, I. Taylor, L. Tortora, Y. Torun, R. Tsenov, C.D. Tunnell, M.A. Uchida, G. Vankova-Kirilova, S. Virostek, M. Vretenar, P. Warburton, S. Watson, C. White, C.G. Whyte, A. Wilson, H. Wisting, X. Yang, A. Young, M. Zisman, Science and Technology Facilities Council (STFC), Adams, D., Alekou, A., Apollonio, M., Asfandiyarov, R., Barber, G., Barclay, P., De Bari, A., Bayes, R., Bayliss, V., Bene, P., Bertoni, R., Blackmore, V. J., Blondel, A., Blot, S., Bogomilov, M., Bonesini, M., Booth, C. N., Bowring, D., Boyd, S., Bradshaw, T. W., Bravar, U., Bross, A. D., Cadoux, F., Capponi, M., Carlisle, T., Cecchet, G., Charnley, C., Chignoli, F., Cline, D., Cobb, J. H., Colling, G., Collomb, N., Coney, L., Cooke, P., Courthold, M., Cremaldi, L. M., Debieux, S., Demello, A., Dick, A., Dobbs, A., Dornan, P., Drielsma, F., Filthaut, F., Fitzpatrick, T., Franchini, P., Francis, V., Fry, L., Gallagher, A., Gamet, R., Gardener, R., Gourlay, S., Grant, A., Graulich, J. S., Greis, J., Griffiths, S., Hanlet, P., Hansen, O. M., Hanson, G. G., Hart, T. L., Hartnett, T., Hayler, T., Heidt, C., Hills, M., Hodgson, P., Hunt, C., Husi, C., Iaciofano, A., Ishimoto, S., Kafka, G., Kaplan, D. M., Karadzhov, Y., Kim, Y. K., Kuno, Y., Kyberd, P., Lagrange, J. -B., Langlands, J., Lau, W., Leonova, M., Li, D., Lintern, A., Littlefield, M., Long, K., Luo, T., Macwaters, C., Martlew, B., Martyniak, J., Masciocchi, F., Mazza, R., Middleton, S., Moretti, A., Moss, A., Muir, A., Mullacrane, I., Nebrensky, J. J., Neuffer, D., Nichols, A., Nicholson, R., Nicola, L., Messomo, E. N., Nugent, J. C., Oates, A., Onel, Y., Orestano, D., Overton, E., Owens, P., Palladino, V., Pasternak, J., Pastore, F., Pidcott, C., Popovic, M., Preece, R., Prestemon, S., Rajaram, D., Ramberger, S., Rayner, M. A., Ricciardi, S., Roberts, T. J., Robinson, M., Rogers, C., Ronald, K., Rothenfusser, K., Rubinov, P., Rucinski, P., Sakamato, H., Sanders, D. A., Sandstrom, R., Santos, E., Savidge, T., Smith, P. J., Snopok, P., Soler, F. J. P., Speirs, D., Stanley, T., Stokes, G., Summers, D. J., Tarrant, J., Taylor, I., Tortora, L., Torun, Y., Tsenov, R., Tunnell, C. D., Uchida, M. A., Vankova-Kirilova, G., Virostek, S., Vretenar, M., Warburton, P., Watson, S., White, C., Whyte, C. G., Wilson, A., Wisting, H., Yang, X., Young, A., Zisman, M., and Palladino, Vittorio

Subjects
Technology, Physics - Instrumentation and Detectors, Traverse, Physics::Instrumentation and Detectors, FOS: Physical sciences, Electron, Cooling channel, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Particle identification method, Particle identification methods, Calorimeters, DESIGN, Particle tracking detectors, 0103 physical sciences, Ionization cooling, Detectors and Experimental Techniques, Nuclear Experiment, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Instrumentation, Instruments & Instrumentation, QC, Mathematical Physics, Physics, Calorimeter, Range (particle radiation), Muon, Science & Technology, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, Particle tracking detector, Experimental High Energy Physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Performance of High Energy Physics Detectors, Beam (structure)
Abstract

The Muon Ionization Cooling Experiment (MICE) will perform a detailed study of ionization cooling to evaluate the feasibility of the technique. To carry out this program, MICE requires an efficient particle-identification (PID) system to identify muons. The Electron-Muon Ranger (EMR) is a fully-active tracking-calorimeter that forms part of the PID system and tags muons that traverse the cooling channel without decaying. The detector is capable of identifying electrons with an efficiency of 98.6%, providing a purity for the MICE beam that exceeds 99.8%. The EMR also proved to be a powerful tool for the reconstruction of muon momenta in the range 100-280 MeV/$c$., 22 pages, 19 figures

Published
2015

21. First observation of quantum interference in the process ϕ→KSKL→π+π−π+π−: A test of quantum mechanics and CPT symmetry

Author

W. Kluge, F. Perfetto, B. Valeriani, E. De Lucia, S. Meola, G. Xu, S. Bertolucci, Massimo Antonelli, P. Beltrame, Andrea Ferrari, T. Capussela, P. Massarotti, Stefano Veneziano, G. Capon, P. Franzini, G. Finocchiaro, Barbara Sciascia, Andrea Ventura, M. Martini, G. Lanfranchi, G. Bencivenni, Claudio Gatti, A. Di Domenico, C. Bloise, A. Antonelli, G. De Zorzi, F. Ambrosino, F. Bossi, M. Testa, A.L. Sibidanov, B. Di Micco, Paolo Valente, S. Fiore, C. Bacci, Cesare Bini, M. Moulson, Enrico Pasqualucci, T. Spadaro, A. Denig, E. Graziani, A. De Santis, S. Di Falco, S. Miscetti, R. Versaci, Igor Sfiligoi, Filippo Ceradini, S. Dell'Agnello, V. Bocci, G. Venanzoni, M. L. Ferrer, Paolo Santangelo, Pierluigi Campana, W. Mei, C. Forti, F. Murtas, Edoardo Gorini, P. Branchini, M. Dreucci, M. Napolitano, Luca Tortora, Francesco Lacava, A. Passeri, Paolo Ciambrone, V. V. Kulikov, F. Nguyen, P. De Simone, M. Palutan, G. Felici, Alessandra Doria, M. Incagli, Fabrizio Scuri, Juliet Lee-Franzini, S. Giovannella, Ludovico Pontecorvo, E. Santovetti, S. Conetti, Margherita Primavera, D. Leone, G. Chiefari, C. Di Donato, Stefan E. Müller, Vincenzo Patera, S. Chi, A. Sciubba, D. Bowring, P. Gauzzi, G. Saracino, S. Bocchetta, and R. Caloi

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Quantum decoherence, CPT symmetry, Electron–positron annihilation, Quantum mechanics, Time difference, Quantum interference, Pi, High Energy Physics::Experiment, Coherence (physics)
Abstract

We present the first observation of quantum interference in the process ϕ→KSKL→π+π−π+π−, using the KLOE detector at the Frascati e+e− collider DAΦNE. From about 5×104 neutral kaon pairs both decaying to π+π− pairs we obtain the distribution of Δt, the difference between the two kaon decay times, which allows testing the validity of quantum mechanics and CPT invariance: no violation of either is observed. New or improved limits on coherence loss and CPT violation are presented.

Published
2006

22. Measurement of the branching ratio of the KL→π+π− decay with the KLOE detector

Author

F. Ambrosino, A. Antonelli, M. Antonelli, C. Bacci, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, F. Ceradini, S. Chi, G. Chiefari, P. Ciambrone, S. Conetti, E. De Lucia, A. De Santis, P. De Simone, G. De Zorzi, S. Dell'Agnello, A. Denig, A. Di Domenico, C. Di Donato, S. Di Falco, B. Di Micco, A. Doria, M. Dreucci, G. Felici, A. Ferrari, M.L. Ferrer, G. Finocchiaro, S. Fiore, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee-Franzini, D. Leone, M. Martini, P. Massarotti, W. Mei, S. Meola, S. Miscetti, M. Moulson, S. Müller, F. Murtas, M. Napolitano, F. Nguyen, M. Palutan, E. Pasqualucci, A. Passeri, V. Patera, F. Perfetto, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, G. Saracino, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, A. Sibidanov, T. Spadaro, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, and G. Xu

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Meson, Branching fraction, Electron–positron annihilation, Detector, Pi, CP violation, Amplitude ratio
Abstract

We present a measurement of the branching ratio of the CP violating decay K L → π + π − performed by the KLOE experiment at the ϕ factory DAΦNE. We use 328 pb −1 of data collected in 2001 and 2002, corresponding to ∼150 million tagged K L mesons. We find BR ( K L → π + π − ) = ( 1.963 ± 0.012 stat . ± 0.017 syst . ) × 10 −3 . This branching ratio measurement is fully inclusive of final-state radiation. Using the above result, we determine the modulus of the amplitude ratio | η + − | to be ( 2.219 ± 0.013 ) × 10 −3 and | ϵ | to be ( 2.216 ± 0.013 ) × 10 −3 .

Published
2006

23. Measurement of the form-factor slopes for the decay KL→π±e∓ν with the KLOE detector

Author

Paolo Santangelo, Pierluigi Campana, A. G. Denig, G. Saracino, B. Di Micco, F. Murtas, S. Meola, Juliet Lee-Franzini, W. Kluge, F. Nguyen, R. Caloi, F. Bossi, S. Giovannella, P. De Simone, G. Chiefari, C. Di Donato, C. Forti, Edoardo Gorini, P. Franzini, Enrico Pasqualucci, A. Di Domenico, M. Napolitano, M. Palutan, P. Massarotti, E. Santovetti, Alessandra Doria, G. Felici, R. Versaci, Igor Sfiligoi, Vincenzo Patera, M. Testa, F. Perfetto, Barbara Sciascia, Andrea Ventura, M. Martini, P. Branchini, M. Dreucci, S. Conetti, S. Chi, B. Valeriani, G. Finocchiaro, Massimo Antonelli, S. Miscetti, V. Bocci, C. Bacci, Cesare Bini, M. Incagli, A. Sciubba, Luca Tortora, G. Lanfranchi, G. Xu, Fabrizio Scuri, T. Capussela, Margherita Primavera, Ludovico Pontecorvo, Claudio Gatti, C. Bloise, Filippo Ceradini, V. V. Kulikov, D. Leone, G. De Zorzi, S. Di Falco, A. Passeri, A. Antonelli, S. Fiore, W. Mei, Stefano Veneziano, F. Ambrosino, Paolo Ciambrone, Francesco Lacava, S. Müller, P. Gauzzi, E. Graziani, G. Bencivenni, G. Capon, M. Moulson, A. De Santis, P. Valente, A. Ferrari, D. Bowring, P. Beltrame, S. Bertolucci, T. Spadaro, S. Dell'Agnello, E. De Lucia, G. Venanzoni, and M. L. Ferrer

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Cabibbo–Kobayashi–Maskawa matrix, Electron–positron annihilation, Detector, Strong interaction, Pi
Abstract

We present a measurement of the K–π vector current form-factor parameters for the decay K L → π ± e ∓ ν . We use 328 pb−1 of data collected in 2001 and 2002, corresponding to ∼2 million K e 3 events. Measurements of semileptonic form factors provide information about the dynamics of the strong interaction and are necessary for evaluation of the phase-space integral I K e needed to measure the CKM matrix element | V u s | for K L → π ± e ∓ ν decays. Our result is λ + = ( 28.6 ± 0.5 ± 0.4 ) × 10 −3 for a linear fit, and λ + ′ = ( 25.5 ± 1.5 ± 1.0 ) × 10 −3 , λ + ″ = ( 1.4 ± 0.7 ± 0.4 ) × 10 −3 for a quadratic fit.

Published
2006

24. Study of the branching ratio and charge asymmetry for the decay KS→πeν with the KLOE detector

Author

Alessandra Doria, S. Miscetti, Ludovico Pontecorvo, E. Santovetti, T. Spadaro, G. De Zorzi, F. Ambrosino, G. Saracino, S. Chi, S. Conetti, R. Caloi, Stefano Veneziano, M. Moulson, Enrico Pasqualucci, G. Bencivenni, Massimo Antonelli, A. De Santis, G. Xu, Margherita Primavera, Filippo Ceradini, W. Kluge, S. Di Falco, G. Felici, F. Bossi, M. Incagli, B. Di Micco, M. Testa, D. Leone, W. Mei, F. Perfetto, Fabrizio Scuri, S. Fiore, C. Forti, B. Valeriani, Paolo Ciambrone, Juliet Lee-Franzini, Paolo Santangelo, Pierluigi Campana, E. De Lucia, S. Müller, S. Bertolucci, E. Graziani, G. Chiefari, S. Dell'Agnello, F. Murtas, S. Meola, R. Versaci, Igor Sfiligoi, M. Napolitano, C. Di Donato, Claudio Gatti, S. Giovannella, C. Bloise, P. De Simone, P. Beltrame, Andrea Ferrari, C. Bacci, Cesare Bini, A. Di Domenico, P. Massarotti, Barbara Sciascia, Andrea Ventura, M. Martini, G. Capon, V. V. Kulikov, A. Passeri, P. Franzini, F. Nguyen, P. Branchini, M. Dreucci, Luca Tortora, Francesco Lacava, G. Lanfranchi, P. Gauzzi, G. Finocchiaro, P. Valente, D. Bowring, T. Capussela, G. Venanzoni, A. Antonelli, Vincenzo Patera, M. L. Ferrer, A. Denig, A. Sciubba, V. Bocci, M. Palutan, and Edoardo Gorini

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Antiparticle, Particle decay, Pion, Pair production, Meson, Branching fraction, Lepton, Dimensionless quantity
Abstract

Among some 400 million K S K L pairs produced in e + e − annihilations at DAΦNE, ∼6500 each of K S → π + e − ν ¯ and K S → π − e + ν decays have been observed with the KLOE detector. From these, the ratio Γ ( K S → π e ν ) / Γ ( K S → π + π − ) = ( 10.19 ± 0.13 ) × 10 −4 is obtained, improving the accuracy on BR ( K S → π e ν ) by a factor of four and providing the most precise test of the Δ S = Δ Q rule. From the partial width Γ ( K S → π e ν ) , a value for f + K 0 ( 0 ) × V u s is obtained that is in agreement with unitarity of the quark-mixing matrix. The lepton charge asymmetry A S = ( 1.5 ± 9.6 stat ± 2.9 syst ) × 10 −3 is compatible with the requirements of CPT invariance. The form-factor slope agrees with recent results from semileptonic K L and K + decays. These are the first measurements of the charge asymmetry and form-factor slope for semileptonic K S decays.

Published
2006

25. Study of the decay ϕ→f0(980)γ→π+π−γ with the KLOE detector

Author

Juliet Lee-Franzini, P. Beltrame, Andrea Ferrari, Paolo Valente, S. Fiore, E. Graziani, Francesco Lacava, Vincenzo Patera, W. Kluge, A. Sciubba, S. Giovannella, M. Testa, A. Denig, Margherita Primavera, E. De Lucia, T. Spadaro, Alessandra Doria, T. Capussela, F. Perfetto, B. Valeriani, S. Chi, G. Capon, Paolo Santangelo, Pierluigi Campana, F. Murtas, M. Incagli, F. Nguyen, P. Gauzzi, R. Versaci, D. Leone, Ludovico Pontecorvo, G. Lanfranchi, Fabrizio Scuri, B. Di Micco, Stefan E. Müller, Enrico Pasqualucci, P. Branchini, M. Dreucci, V. V. Kulikov, A. Antonelli, P. De Simone, V. Bocci, E. Santovetti, M. Palutan, G. De Zorzi, C. Forti, Luca Tortora, F. Ambrosino, D. Bowring, M. Napolitano, Filippo Ceradini, S. Conetti, G. Felici, S. Dell'Agnello, Paolo Ciambrone, M. Moulson, G. Saracino, A. De Santis, G. Chiefari, C. Di Donato, Edoardo Gorini, Igor Sfiligoi, G. Finocchiaro, S. Ventura, P. Franzini, Stefano Veneziano, G. Bencivenni, A. Passeri, C. Bacci, Cesare Bini, R. Caloi, G. Venanzoni, M. L. Ferrer, F. Bossi, S. Miscetti, W. Mei, S. Meola, G. F. Xu, P. Massarotti, Barbara Sciascia, Andrea Ventura, M. Martini, Claudio Gatti, C. Bloise, Massimo Antonelli, S. Di Falco, A. Di Domenico, and S. Bertolucci

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle decay, Antiparticle, Annihilation, Pair production, Pion, Meson, Antimatter, Invariant mass
Abstract

We measured, with the KLOE detector, the spectrum of π + π − invariant mass in a sample of 6.7 × 10 5 e + e − → π + π − γ events with the photon at large polar angle ( θ γ > 45 ° ) at a centre of mass energy s around the ϕ mass. We observe in this spectrum a clear contribution from the intermediate process ϕ → f 0 ( 980 ) γ . A sizeable effect is also observed in the distribution of the pion forward–backward asymmetry. We use different theoretical models to fit the spectrum and we determine the f0 mass and coupling constants to the ϕ, to π + π − and to K K ¯ .

Published
2006

26. Measurements of the absolute branching ratios for the dominant KL decays, the KL lifetime, and Vus with the KLOE detector

Author

F. Ambrosino, A. Antonelli, M. Antonelli, C. Bacci, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, F. Ceradini, S. Chi, G. Chiefari, P. Ciambrone, S. Conetti, E. De Lucia, A. De Santis, P. De Simone, G. De Zorzi, S. Dell'Agnello, A. Denig, A. Di Domenico, C. Di Donato, S. Di Falco, B. Di Micco, A. Doria, M. Dreucci, G. Felici, A. Ferrari, M.L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee-Franzini, D. Leone, M. Martini, P. Massarotti, W. Mei, S. Meola, S. Miscetti, M. Moulson, S. Müller, F. Murtas, M. Napolitano, F. Nguyen, M. Palutan, E. Pasqualucci, A. Passeri, V. Patera, F. Perfetto, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, G. Saracino, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, A. Sibidanov, T. Spadaro, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, and G. Xu

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Detector, Radiation, Branching (polymer chemistry)
Abstract

From a sample of about 10 9 ϕ mesons produced at DAΦNE, we have selected K L mesons tagged by observing K S → π + π − decays. We present results on the major K L branching ratios, including those of the semileptonic decays needed for the determination of | V u s | . These branching ratio measurements are fully inclusive with respect to final-state radiation. The K L lifetime has also been measured.

Published
2006

27. Measurement of the absolute branching ratio for the K+→μ+ν(γ) decay with the KLOE detector

Author

F. Ambrosino, A. Antonelli, M. Antonelli, C. Bacci, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, F. Ceradini, S. Chi, G. Chiefari, P. Ciambrone, S. Conetti, E. De Lucia, P. De Simone, G. De Zorzi, S. Dell'Agnello, A. Denig, A. Di Domenico, C. Di Donato, S. Di Falco, B. Di Micco, A. Doria, M. Dreucci, G. Felici, A. Ferrari, M.L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee-Franzini, D. Leone, M. Martini, P. Massarotti, W. Mei, S. Meola, S. Miscetti, M. Moulson, S. Müller, F. Murtas, M. Napolitano, F. Nguyen, M. Palutan, E. Pasqualucci, A. Passeri, V. Patera, F. Perfetto, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, G. Saracino, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, and G. Xu

Subjects
Nuclear and High Energy Physics
Published
2006

28. A direct search for the CP-violating decay KS→3π0 with the KLOE detector at DAΦNE

Author

B. Di Micco, R. Versaci, Igor Sfiligoi, G. Xu, Stefano Veneziano, G. Finocchiaro, G. Bencivenni, Juliet Lee-Franzini, Margherita Primavera, M. Moulson, S. Meola, G. Saracino, P. De Simone, S. Bertolucci, A. De Santis, T. Spadaro, R. Caloi, D. Leone, S. Giovannella, C. Forti, G. Felici, P. Franzini, A. Di Domenico, P. Beltrame, C. Bloise, Stefan E. Müller, G. Capon, Filippo Ceradini, M. Napolitano, G. Lanfranchi, A. Ferrari, E. Santovetti, Paolo Santangelo, Pierluigi Campana, Paolo Ciambrone, V. Kulikov, S. Dell'Agnello, W. Mei, F. Murtas, S. Chi, Massimo Antonelli, P. Massarotti, S. Conetti, Barbara Sciascia, Andrea Ventura, M. Martini, C. Bacci, Cesare Bini, G. Chiefari, C. Di Donato, Enrico Pasqualucci, Alessandra Doria, M. Incagli, T. Capussella, W. Kluge, Ludovico Pontecorvo, Fabrizio Scuri, S. Di Falco, E. De Lucia, F. Perfetto, B. Valeriani, M. Testa, Paolo Valente, P. Branchini, M. Dreucci, E. Graziani, G. De Zorzi, F. Ambrosino, Francesco Lacava, C. Gatti, Luca Tortora, P. Gauzzi, D. Bowring, F. Nguyen, Vincenzo Patera, M. Palutan, A. Sciubba, Edoardo Gorini, F. Bossi, A. Denig, S. Miscetti, V. Bocci, A. Antonelli, G. Venanzoni, M. L. Ferrer, and A. Passeri

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Photon, Branching fraction, Detector, Pi, Direct search, Center of mass, Calorimeter
Abstract

We have searched for the decay K S → 3 π 0 with the KLOE experiment at DA Φ NE using data from e + e − collisions at a center of mass energy W ∼ m ϕ c 2 for an integrated luminosity L = 450 pb −1 . The search has been performed with a pure K S beam obtained by tagging with K L interactions in the calorimeter and detecting six photons. We find an upper limit for the branching ratio of 1.2 × 10 −7 at 90% C.L.

Published
2005

29. Upper limit on the η→π+π− branching ratio with the KLOE detector

Author

G. Finocchiaro, P. Franzini, Stefan E. Müller, G. Capon, Margherita Primavera, B. Di Micco, P. Gauzzi, R. Caloi, Claudio Gatti, C. Bloise, S. Chi, Maddalena Napolitano, L. Passalacqua, P. Massarotti, Barbara Sciascia, Andrea Ventura, M. Martini, S. Miscetti, Enrico Pasqualucci, P. Branchini, M. Dreucci, Cesare Bini, R. Versaci, A. Farilla, Igor Sfiligoi, G. Saracino, G. Carboni, Francesco Lacava, S. Ventura, D. Leone, C. Bacci, Massimo Antonelli, G. Venanzoni, Stefano Veneziano, P. Beltrame, E. De Lucia, M. L. Ferrer, G. Bencivenni, Andrea Ferrari, F. Nguyen, W. Kluge, Marianna Testa, E. Spiriti, A. Di Domenico, S. Meola, E. Graziani, L. Tortora, S. Dell'Agnello, M. Palutan, G. Lanfranchi, R. Messi, F. Bossi, W. Mei, T. Spadaro, Paolo Santangelo, Pierluigi Campana, F. Murtas, T. Capussela, G. Xu, A. Passeri, C. Forti, I. Villella, V. Bocci, A. Antonelli, S. Di Falco, M. Barva, M. A. Matsyuk, M. Moulson, A. De Santis, S. Bertolucci, V. V. Kulikov, G. Felici, G. De Zorzi, Alessandra Doria, F. Ambrosino, Ludovico Pontecorvo, P. De Simone, M. Martemianov, Filippo Ceradini, A. G. Denig, F. Perfetto, Paolo Ciambrone, B. Valeriani, G. Chiefari, F. Cervelli, C. Di Donato, Edoardo Gorini, Vincenzo Patera, Juliet Lee-Franzini, A. Sciubba, S. Giovannella, P. Valente, E. Santovetti, D. Bowring, S. Conetti, M. Incagli, and Fabrizio Scuri

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Electron–positron annihilation, Detector, Pi, High Energy Physics::Experiment, Limit (mathematics)
Abstract

We have searched with the KLOE detector for the P and CP violating decay eta --> pi(+)pi(-) in a sample of 1.55 x 10(7) eta's from the decay phi --> etagamma of phi-mesons produced in e(+)e(-) annihilations at DAPhiNE. No signal is found. We obtain the upper limit BR(eta --> pi(+)pi(-)) < 1.3 x 10(-5) at 90% confidence level. (C) 2004 Elsevier B.V. All rights reserved.

Published
2005

30. Measurement of the pseudoscalar mixing angle and eta ' gluonium content with the KLOE detector

Author

Enrico Pasqualucci, S. Meola, Massimo Antonelli, G. Saracino, S. Bocchetta, Alessandra Doria, M. Testa, A. Passeri, W. Kluge, S. Giovannella, Margherita Primavera, M. Palutan, P. Franzini, Pierluigi Campana, R. Caloi, Ludovico Pontecorvo, F. Murtas, E. De Lucia, T. Capussela, G. Finocchiaro, D. Leone, T. Spadaro, G. De Zorzi, G. Lanfranchi, S. Chi, F. Ambrosino, J. Lee-Franzini, A. Antonelli, W. Mei, L. Tortora, D. Bowring, F. Nguyen, Paolo Valente, G. Chiefari, S. Miscetti, C. Di Donato, S. Fiore, G. Venanzoni, F. Perfetto, C. Bacci, Cesare Bini, P. Beltrame, Andrea Ferrari, B. Valeriani, G. Bencivenni, S. Dell'Agnello, E. Graziani, M. L. Ferrer, G. F. Xu, P. Massarotti, Barbara Sciascia, Andrea Ventura, M. Martini, P. Gauzzi, P. Santangelo, Vincenzo Patera, G. Capon, Claudio Gatti, F. Bossi, P. De Simone, G. Felici, M. Incagli, Fabrizio Scuri, E. Santovetti, S. Conetti, A. Denig, V. Bocci, C. Bloise, Edoardo Gorini, P. Branchini, M. Dreucci, Francesco Lacava, S. Müller, S. Bertolucci, A. Sciubba, S. Di Falco, A. Di Domenico, F. Ceradini, B. Di Micco, R. Versaci, Igor Sfiligoi, Stefano Veneziano, P. Ciambrone, C. Forti, M. Napolitano, M. Moulson, A. De Santis, V. V. Kulikov, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, S., Bocchetta, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., DELL AGNELLO, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Mnuller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, Radiative φ decay, Glueball, e(+)e(-), collisions, radiative phi decays, pseudoscalar mixing angle, Electron–positron annihilation, Pseudoscalar mixing angle, Analytical chemistry, e+ e− collision, Settore FIS/04 - Fisica Nucleare e Subnucleare, Pseudoscalar, Content (measure theory), High Energy Physics::Experiment, Nuclear Experiment, Mixing (physics)
Abstract

We have measured the ratio R ϕ = BR ( ϕ → η ′ γ ) / BR ( ϕ → η γ ) by looking for the radiative decays ϕ → η ′ γ and ϕ → η γ into the final states π + π − 7 γ and 7γ, respectively, in a sample of ∼ 1.4 × 10 9 ϕ mesons produced at the Frascati ϕ factory. We obtain R ϕ = ( 4.77 ± 0.09 stat ± 0.19 syst ) × 10 −3 , from which we derive BR ( ϕ → η ′ γ ) = ( 6.20 ± 0.11 stat ± 0.25 syst ) × 10 −5 . Assuming the η ′ has zero gluonium content, we extract the pseudoscalar mixing angle in the quark-flavor basis, φ P = ( 41.4 ± 0.3 stat ± 0.7 syst ± 0.6 th ) ° . Combining the value of R ϕ with other constraints, we estimate the fractional gluonium content of the η ′ to be Z 2 = 0.14 ± 0.04 and the mixing angle to be φ P = ( 39.7 ± 0.7 ) ° .

Published
2007

31. Latest results from KLOE at DAFNE

Author

P. GAUZZI, F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, S. BOCCHETTA, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, M. PRIMAVERA, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, VENTURA, Andrea, P., Gauzzi, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, S., Bocchetta, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Published
2007

32. Measurement of the form-factor slopes for the decay K-L -> pi(+/-)e(+/-)nu with the KLOE detector

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, Ambrosino, F, Antonelli, A, Antonelli, M, Bacci, C, Beltrame, P, Bencivenni, G, Bertolucci, S, Bini, C, Bloise, C, Bocci, V, Bossi, F, Bowring, D, Branchini, P, Caloi, R, Campana, P, Capon, G, Capussela, T, Ceradini, Filippo, Chi, S, Chiefari, G, Ciambrone, P, Conetti, S, De Lucia, E, De Santis, A, De Simone, P, De Zorzi, G, Dell'Agnello, S, Denig, A, Di Domenico, A, Di Donato, C, Di Falco, S, DI MICCO, Biagio, Doria, A, Dreucci, M, Felici, G, Ferrari, A, Ferrer, Ml, Finocchiaro, G, Fiore, S, Forti, C, Franzini, P, Gatti, C, Gauzzi, P, Giovannella, S, Gorini, E, Graziani, E, Incagli, M, Kluge, W, Kulikov, V, Lacava, F, Lanfranchi, G, Lee Franzini, J, Leone, D, Martini, M, Massarotti, P, Mei, W, Meola, S, Miscetti, S, Moulson, M, Muller, S, Murtas, F, Napolitano, M, Nguyen, F, Palutan, M, Pasqualucci, E, Passeri, A, Patera, V, Perfetto, F, Pontecorvo, L, Primavera, M, Santangelo, P, Santovetti, E, Saracino, G, Sciascia, B, Sciubba, A, Scuri, F, Sfiligoi, I, Spadaro, T, Testa, M, Tortora, L, Valente, P, Valeriani, B, Venanzoni, G, Veneziano, S, Ventura, A, Versaci, R, Xu, G., F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
KLOE KL form factors
Abstract

We present a measurement of the K-pi vector current form-factor parameters for the decay K-L -> pi(+/-)e(-/+)nu. We use 328 pb(-1) of data collected in 2001 and 2002, corresponding to similar to 2 million K-e3 events. Measurements of semileptonic form factors provide information about the dynamics of the strong interaction and are necessary for evaluation of the phase-space integral I-K(e) needed to measure the CKM matrix element |V-us| for K-L -> pi(+/-)e(-/+)nu decays. Our result is lambda(+) = (28.6 +/- 0.5 +/- 0.4) x 10(-3) for a linear fit, and lambda'(+) = (25.5 +/- 1.5 +/- 1.0) x 10(-3), (1.4 +/- 0.7 +/- 0.4) x 10(-3) for a quadratic fit. (c) 2006 Elsevier B.V. All rights reserved.

Published
2006

33. Measurement of the Branching Ratio of the KL -> pi+ pi- decay with the KLOE Detector

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
KLOE KL meson
Abstract

We present a measurement of the branching ratio of the CP violating decay K-L -> pi(+)pi(-) performed by the KLOE experiment at the phi factory DA Phi NE. We use 328pb(-1) of data collected in 2001 and 2002, corresponding to similar to 150 million tagged K-L mesons. We find BR(K-L -> pi(+)pi(-)) = (1.963 +/- 0.012(stat). +/- 0.017(syst.)) x 10(-3). This branching ratio measurement is fully inclusive of final-state radiation. Using the above result, we determine the modulus of the amplitude ratio vertical bar eta(+-)| to be (2.219 +/- 0.013) x 10(-3) and vertical bar epsilon vertical bar to be (2.216 +/- 0.013) x 10(-3).

Published
2006

34. Measurement of the DA Phi NE luminosity with the KLOE detector using large angle Bhabha scattering

Author

S. Müller, A. Di Domenico, S. Chi, S. Di Falco, G. F. Xu, S. Miscetti, Paolo Santangelo, Pierluigi Campana, P. Massarotti, Barbara Sciascia, Andrea Ventura, F. Murtas, Luca Tortora, M. Martini, Massimo Antonelli, P. Beltrame, G. Lanfranchi, F. Perfetto, M. Testa, S. Giovannella, B. Valeriani, W. Kluge, F. Bossi, Filippo Ceradini, Claudio Gatti, Margherita Primavera, T. Capussela, C. Bloise, Enrico Pasqualucci, V. Bocci, E. Santovetti, G. Saracino, S. Conetti, Paolo Valente, Francesco Lacava, G. Capon, G. De Zorzi, A. Antonelli, S. Fiore, P. Gauzzi, R. Caloi, E. De Lucia, Edoardo Gorini, D. Leone, M. Incagli, F. Ambrosino, S. Meola, E. Graziani, Fabrizio Scuri, Paolo Ciambrone, P. De Simone, P. Branchini, M. Dreucci, A. Ferrari, D. Bowring, G. Venanzoni, Vincenzo Patera, A. Sciubba, M. L. Ferrer, A. Passeri, F. Nguyen, M. Palutan, Alessandra Doria, G. Felici, Ludovico Pontecorvo, A. G. Denig, G. Finocchiaro, G. Chiefari, C. Di Donato, P. Franzini, C. Bacci, Cesare Bini, M. Moulson, A. De Santis, C. Forti, J. Lee-Franzini, M. Napolitano, V. V. Kulikov, S. Dell'Agnello, S. Bertolucci, T. Spadaro, W. Mei, B. Di Micco, R. Versaci, Igor Sfiligoi, Stefano Veneziano, G. Bencivenni, Ambrosino, F., Antonelli, A., Antonelli, M., Bacci, C., Beltrame, P., Bencivenni, G., Bertolucci, S., Bini, C., Bloise, C., Bocci, V., Bossi, F., Bowring, D., Branchini, P., Caloi, R., Campana, P., Capon, G., Capussela, T., Ceradini, Filippo, Chi, S., Chiefari, G., Ciambrone, P., Conetti, S., De Lucia, E., De Santis, A., De Simone, P., De Zorzi, G., Dell'Agnello, S., Denig, A., Di Domenico, A., Di Donato, C., Di Falco, S., DI MICCO, Biagio, Doria, A., Dreucci, M., Felici, G., Ferrari, A., Ferrer, M. L., Finocchiaro, G., Fiore, S., Forti, C., Franzini, P., Gatti, C., Gauzzi, P., Giovannella, S., Gorini, E., Graziani, E., Incagli, M., Kluge, W., Kulikov, V., Lacava, F., Lanfranchi, G., Lee Ranzini, J., Leone, D., Martini, M., Massarotti, P., Mei, W., Meola, S., Miscetti, S., Moulson, M., Muller, S., Murtas, F., Napolitan, M., Nguyen, F., Palutan, M., Pasqualucci, E., Passeri, A., Patera, V., Perfetto, F., Pontecorvo, L., Primavera, M., Santangelo, P., Santovetti, E., Saracino, G., Sciascia, B., Sciubba, A., Scuri, F., Sfiligoi, I., Spadaro, T., Testa, M., Tortora, L., Valente, P., Valeriani, B., Venanzoni, G., Veneziano, S., Ventura, A., Versaci, R., Xu, G., F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dellagnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, G., Xu, Ambrosino, Fabio, Chiefari, Giovanni, C., Di Donato, Massarotti, Paolo, Napolitano, Marco, and Saracino, Giulio

Subjects
Elastic scattering, Physics, KLOE, Dafne, Particle physics, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Scattering, Inelastic scattering, Particle identification, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, law.invention, Nuclear physics, Cross section (physics), MONTE-CARLO, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider, Engineering (miscellaneous), Bhabha scattering
Abstract

We describe the method of measuring the integrated luminosity of the $e^+e^-$ collider DA$\Phi$NE, the Frascati $\phi-$factory. The measurement is done with the KLOE detector selecting large angle Bhabha scattering events and normalizing them to the effective cross section. The $e^+e^- \to e^+e^-(\gamma)$ cross section is calculated using different event generators which account for the $O(\alpha)$ radiative initial and final state corrections, and the $\phi$ resonance contribution. The accuracy of the measurement is 0.6%, where 0.3% comes from systematic errors related to the event counting and 0.5% from theoretical evaluations of the cross section., Comment: Submitted to Eur. Phys. J. C

Published
2006

35. Determination of CP and CPT violation parameters in the neutral kaon system using the Bell-Steinberger relation and data from the KLOE experiment

Author

AMBROSINO, FABIO, CAPUSSELA, TIZIANA, CHIEFARI, GIOVANNI, MASSAROTTI, PAOLO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, D. Bowring, A. Doria, G. D'Ambrosio, C. Di Donato, S. Meola, Ambrosino, Fabio, D., Bowring, Capussela, Tiziana, Chiefari, Giovanni, A., Doria, G., D'Ambrosio, C., Di Donato, Massarotti, Paolo, S., Meola, Napolitano, Marco, Perfetto, Francesco, and Saracino, Giulio

Published
2006

36. Measurements of the absolute branching ratios for the dominant K-L decays, the K-L lifetime, and V-us with the KLOE detector

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, A. SIBIDANOV, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, and R., Versaci

Subjects
KLOE KL meson Vus
Abstract

From a sample of about 10(9) phi mesons produced at DA phi NE, we have selected K-L mesons tagged by observing K-S -> pi(+) pi(-) decays. We present results on the major KL branching ratios, including those of the semileptonic decays needed for the determination of vertical bar V(us)vertical bar. These branching ratio measurements are fully inclusive with respect to final-state radiation. The K-L lifetime has also been measured.

Published
2006

37. First observation of quantum interference in the process phi -> KS KL -> pi+ pi– pi+ pi–: a test of quantum mechanics and CPT symmetry

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, S. BOCCHETTA, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, A. SIBIDANOV, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, S., Bocchetta, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
KLOE Quantum interference
Abstract

We present the first observation of quantum interference in the process phi -> KSKL -> pi(+)pi(-)pi(+)pi(-), using the KLOE detector at the Frascati e(+)e(-) collider DA Phi NE. From about 5 x 10(4) neutral kaon pairs both decaying to pi(+)pi(-) pairs we obtain the distribution of At,. the difference between the two kaon decay times, which allows testing the validity of quantum mechanics and C P T invariance: no violation of either is observed. New or improved limits on coherence loss and C P T violation are presented.

Published
2006

38. Study of the decay phi -> f(0)(980)gamma -> pi (+) pi(-) gamma with the KLOE detector

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, S. VENTURA, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, S., Ventura, R., Versaci, and G., Xu

Subjects
KLOE Dafne
Abstract

We measured, with the KLOE detector, the spectrum of pi(+)pi(-) invariant mass in a sample of 6.7 x 10(5) e(+)e(-) -> pi(+)pi(-)gamma events with the photon at large polar angle (theta(gamma) > 45 degrees) at a centre of mass energy root s around the phi mass. We observe in this spectrum a clear contribution from the intermediate process phi -> f(0)(980)gamma. A sizeable effect is also observed in the distribution of the pion forward-backward asymmetry. We use different theoretical models to fit the spectrum and we determine the to mass and coupling constants to the phi, to pi(+)pi(-) and to KK.

Published
2006

39. Measurement of the form-factor slopes for the decay K(L)-->pi+-e-+nuwith the KLOE detector

Author

AMBROSINO, FABIO, A. Antonelli, M. Antonelli, C. Bacci, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, F. Ceradini, S. Chi, G. Chiefari, P. Ciambrone, S. Conetti, E. De Lucia, P. De Simone, G. De Zorzi, S. Dell'Agnello, A. Denig, A. Di Domenico, C. Di Donato, S. Di Falco, B. Di Micco, A. Doria, M. Dreucci, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martini, MASSAROTTI, PAOLO, W. Mei, S. Meola, S. Miscetti, M. Moulson, S. Müller, F. Murtas, M. Napolitano, F. Nguyen, M. Palutan, E. Pasqualucci, A. Passeri, V. Patera, F. Perfetto, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, SARACINO, GIULIO, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., De Lucia, P., De Simone, G., De Zorzi, S., Dell'Agnello, A., Denig, A., Di Domenico, C., Di Donato, S., Di Falco, B., Di Micco, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martini, Massarotti, Paolo, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Müller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, R., Versaci, and G., Xu

Subjects
K-e3 form factor
Abstract

We present a measurement of the K-pi vector current form-factor parameters for the decay K(L) →pi+-e-+nu. We use 328 pb^−1 of data collected in 2001 and 2002, corresponding to about 2 million Ke3 events. Measurements of semileptonic form factors provide information about the dynamics of the strong interaction and are necessary for evaluation of the phase-space integral IeK needed to measure the CKM matrix element |Vus | for K(L) →pi+-e-+nu decays. Our result is (lambda)+ = (28.6±0.5±0.4)×10-3 for a linear fit, and (lambda)'+ = (25.5±1.5±1.0)×10^-3, (lambda)''+ = (1.4±0.7±0.4)×10^-3 for a quadratic fit.

Published
2006

40. Measurement of the absolute branching ratio for the K+ -> µ+ nu(gamma) decay with the KLOE detector

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, and R., Versaci

Subjects
KLOE, DAFNE, Charged kaons
Abstract

We have measured the fully inclusive K+ -> mu(+)v(y) absolute branching ratio with the KLOE experiment at DM phi NE, the Frascati phi-factory. From some 865283 K+ -> mu(+)v(gamma) decays obtained from a sample of similar to 5.2 x 10(8), phi-meson decays, we find BR(K+ -> mu+v(mu),(gamma)) = 0.6366 +/- 0.0009(stat.) +/- 0.0015(syst)., corresponding to an overall fractional error of 0.27%. Using recent lattice results on the decay constants of pseudoscalar mesons one can obtain an estimate for the CKM mixing matrix element vertical bar V(us)vertical bar = 0.2223 +/- 0.0026.

Published
2006

41. Study of the branching ratio and charge asymmetry for the decay KS--> pi e nu with the KLOE detector

Author

AMBROSINO, FABIO, D. Bowring, CAPUSSELA, TIZIANA, CHIEFARI, GIOVANNI, A. Doria, C. Di Donato, MASSAROTTI, PAOLO, S. Meola, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, Ambrosino, Fabio, D., Bowring, Capussela, Tiziana, Chiefari, Giovanni, A., Doria, C., Di Donato, Massarotti, Paolo, S., Meola, Napolitano, Marco, Perfetto, Francesco, and Saracino, Giulio

Abstract

Among some 400 million KsKl pairs produced in e+e- annihilations at DAFNE, about 6500 each of Ks->pi+e-nubar and Ks->pi-e+nu decays have been observed with the KLOE detector. From these, the ratio G(Ks->pienu)/G(Ks->p+p-(g))=(10.19+-0.13)10-4 is obtained, improving the accuracy on BR(Ks->pienu) by a factor of four and providing the most precise test of the DeltaS=DeltaQ rule. From the partial width Gamma(Ks->pienu), a value for f+(K0)Vus is obtained that is in agreement with unitarity of the quark-mixing matrix. The lepton charge asymmetry AS=(1.5+-9.6stat+-2.9syst)10-3 is compatible with the requirements of CPT invariance. The form-factor slope agrees with recent results from semileptonic Kl and K+ decays. These are the first measurements of the charge asymmetry and form-factor slope for semileptonic Ks decays.

Published
2006

42. Highlights on hadronic physics at KLOE

Author

AMBROSINO, FABIO, CAPUSSELA, TIZIANA, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, F. Ceradini, S. Chi, P. Ciambrone, S. Conetti, E. De Lucia, P. De Simone, G. De Zorzi, S. Dell'Agnello, A. Denig, A. Di Domenico, S. Di Falco, B. Di Micco, A. Doria, M. Dreucci, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martini, W. Mei, S. Meola, S. Miscetti, M. Moulson, S. Müller, F. Murtas, F. Nguyen, M. Palutan, E. Pasqualucci, A. Passeri, V. Patera, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, Capussela, Tiziana, F., Ceradini, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E., De Lucia, P., De Simone, G., De Zorzi, S., Dell'Agnello, A., Denig, A., Di Domenico, DI DONATO, Camilla, S., Di Falco, B., Di Micco, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martini, Massarotti, Paolo, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Müller, F., Murta, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, Perfetto, Francesco, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, R., Versaci, and G., Xu

Subjects
ETA, MESONS, SEARCH
Published
2006

43. Precise measurement of Gamma(K-S -> pi(+)pi(-)(gamma))/Gamma(K-S -> pi(0)pi(0)) with the KLOE detector at DAFNE

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, S. FIORE, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
KLOE, Neutral kaons
Abstract

Using a sample of over 400 million phi -> KSKL decays produced during the years 2001 and 2002 at the DA Phi NE e(+)e(-) collider, the ratio R-S(pi) = Gamma(K-S -> pi(+) pi(-)(gamma))/Gamma (K-S -> pi(0)pi(0)) has been measured with the KLOE detector. The result is R-pi(S) = 2.2555 +/- 0.0012(stat)+/- 0.0021(corr-stat)+/- 0.0050(syst), which is in good agreement with the previously published result based on the KLOE data sample from the year 2000. The average of the KLOE results is R-S(pi) = 2.2549 +/- 0.0054, reducing the total error by a factor of three, to 0.25%.

Published
2006

44. Measurement of the KL meson lifetime with the KLOE detector

Author

W. Kluge, E. De Lucia, V. Kulikov, P. Valente, P. Franzini, A. Denig, B. Di Micco, G. Finocchiaro, Filippo Ceradini, Claudio Gatti, C. Bloise, F. Perfetto, E. Santovetti, B. Valeriani, S. Miscetti, D. Bowring, Paolo Santangelo, Pierluigi Campana, C. Forti, F. Nguyen, F. Murtas, Paolo Ciambrone, G. Felici, V. Bocci, G. Xu, G. Saracino, M. Napolitano, C. Bacci, Cesare Bini, P. Massarotti, M. Palutan, R. Versaci, Barbara Sciascia, Andrea Ventura, M. Martini, G. De Zorzi, P. Branchini, G. Chiefari, M. Dreucci, Igor Sfiligoi, Enrico Pasqualucci, S. Di Falco, C. Di Donato, Stefan E. Müller, G. Lanfranchi, Massimo Antonelli, F. Bossi, F. Ambrosino, Alessandra Doria, R. Caloi, G. Venanzoni, Margherita Primavera, S. Meola, W. Mei, M. L. Ferrer, S. Bertolucci, Ludovico Pontecorvo, D. Leone, S. Dell'Agnello, Edoardo Gorini, M. Moulson, A. De Santis, P. Beltrame, A. Passeri, Andrea Ferrari, G. Capon, T. Spadaro, P. Gauzzi, E. Graziani, A. Di Domenico, Stefano Veneziano, G. Bencivenni, Vincenzo Patera, A. Sciubba, S. Chi, S. Conetti, Juliet Lee-Franzini, Francesco Lacava, L. Tortora, S. Giovannella, M. Testa, M. Incagli, Fabrizio Scuri, T. Capussela, A. Antonelli, P. De Simone, Merola, Leonardo, Collaborazione, Kloe, Napolitano, M., Saracino, Giulio, Aloisio, A., Ambrosino, Fabio, DI DONATO, C., Massarotti, Paolo, Ambrosino, F, Antonelli, A, Antonelli, M, Bacci, C, Beltrame, P, Bencivenni, G, Bertolucci, S, Bini, C, Bloise, C, Bocci, V, Bossi, F, Bowring, D, Branchini, P, Caloi, R, Campana, P, Capon, G, Capussela, T, Ceradini, Filippo, Chi, S, Chiefari, G, Ciambrone, P, Conetti, S, De Lucia, E, De Santis, A, De Simone, P, De Zorzi, G, Dell'Agnello, S, Denig, A, Di Domenico, A, Di Donato, C, Di Falco, S, DI MICCO, Biagio, Doria, A, Dreucci, M, Felici, G, Ferrari, A, Ferrer, Ml, Finocchiaro, G, Forti, C, Franzini, P, Gatti, C, Gauzzi, P, Giovannella, S, Gorini, E, Graziani, E, Incagli, M, Kluge, W, Kulikov, V, Lacava, F, Lanfranchi, G, Lee Franzini, J, Leone, D, Martini, M, Massarotti, P, Mei, W, Meola, S, Miscetti, S, Moulson, A, Muller, S, Murtas, F, Napolitano, A, Nguyen, F, Palutan, A, Pasqualucci, E, Passeri, A, Patera, V, Perfetto, F, Pontecorvo, L, Primavera, M, Santangelo, P, Santovetti, E, Saracino, G, Sciascia, B, Sciubba, A, Scuri, F, Sfiligoi, I, Spadaro, T, Testa, M, Tortora, L, Valente, P, Valeriani, B, Venanzoni, G, Veneziano, S, Ventura, A, Versaci, R, Xu, G., F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, MEAN LIFE, High Energy Physics - Experiment (hep-ex), Meson, KLOE KL meson lifetime, Electron–positron annihilation, Detector, FOS: Physical sciences, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare
Abstract

We present a measurement of the KL lifetime using the KLOE detector. From a sample of 4 x 10^8 KS KL pairs following the reaction e+ e- -> phi -> KS KL we select 15 x 10^6 KL -> p0 p0 p0 decays tagged by KS -> pi+ pi- events. From a fit of the proper time distribution we find tau_L = (50.92 +- 0.17{stat} +- 0.25{syst})$ ns. This is the most precise measurement of the KL lifetime performed to date., 14 pages, 14 figures

Published
2005
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45. A direct search for the CP-violating decay KS -> 3pi0 with the KLOE detector at DAFNE

Author

F. AMBROSINO, A. ANTONELLI, M. ANTONELLI, C. BACCI, P. BELTRAME, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, D. BOWRING, P. BRANCHINI, R. CALOI, P. CAMPANA, G. CAPON, T. CAPUSSELLA, F. CERADINI, S. CHI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, A. DE SANTIS, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, B. DI MICCO, A. DORIA, M. DREUCCI, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, C. FORTI, P. FRANZINI, C. GATTI, P. GAUZZI, S. GIOVANNELLA, E. GRAZIANI, M. INCAGLI, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, D. LEONE, M. MARTINI, P. MASSAROTTI, W. MEI, S. MEOLA, S. MISCETTI, M. MOULSON, S. MULLER, F. MURTAS, M. NAPOLITANO, F. NGUYEN, M. PALUTAN, E. PASQUALUCCI, A. PASSERI, V. PATERA, F. PERFETTO, L. PONTECORVO, P. SANTANGELO, E. SANTOVETTI, G. SARACINO, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, T. SPADARO, M. TESTA, L. TORTORA, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, R. VERSACI, G. XU, GORINI, Edoardo, PRIMAVERA, Margherita, VENTURA, Andrea, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussella, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Muller, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Ventura, Andrea, R., Versaci, and G., Xu

Subjects
KLOE KS meson
Abstract

We have searched for the decay K-S -> 3 pi(0) with the KLOE experiment at DA Phi NE using data from e(+)e(-) collisions at a center of mass energy W similar to m(phi)c(2) for an integrated luminosity L = 450 pb(-1). The search has been performed with a pure K-S beam obtained by tagging with K-L interactions in the calorimeter and detecting six photons. We find an upper limit for the branching ratio of 1.2 x 10(-7) at 90% C.L.

Published
2005

46. Recent results from the KLOE experiment at DAΦNE

Author

AMBROSINO, FABIO, CAPUSSELA, TIZIANA, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, MEOLA, SABINO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, M. Barva, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, S. A. Bulychjov, R. Caloi, P. Campana, G. Capon, G. Carboni, F. Ceradini, F. Cervelli, S. Chi, P. Ciambrone, S. Conetti, E. D. Lucia, A. D. Santis, P. d. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, B. D. Micco, A. Doria, M. Dreucci, A. Farilla, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martemianov, M. Martini, M. Matsyuk, W. Mei, R. Messi, S. Miscetti, M. Moulson, S. Muller, F. Murtas, F. Nguyen, M. Palutan, E. Pasqualucci, L. Passalacqua, A. Passeri, V. Patera, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, R. D. Schamberger, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, A. Sibidanov, T. Spadaro, E. Spiriti, M. Tabidze, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, I. Villella, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, M., Barva, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, S. A., Bulychjov, R., Caloi, P., Campana, G., Capon, Capussela, Tiziana, G., Carboni, F., Ceradini, F., Cervelli, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E. D., Lucia, A. D., Santi, P. d., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, DI DONATO, Camilla, S. D., Falco, B. D., Micco, A., Doria, M., Dreucci, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martemianov, M., Martini, Massarotti, Paolo, M., Matsyuk, W., Mei, Meola, Sabino, R., Messi, S., Miscetti, M., Moulson, S., Muller, F., Murta, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, Perfetto, Francesco, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, R. D., Schamberger, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, E., Spiriti, M., Tabidze, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, R., Versaci, I., Villella, and G., Xu

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Hadronic cross-section, Kaon decay, Branching fraction, KLOE, Hadron, General Physics and Astronomy, Astronomy and Astrophysics, Radiation
Abstract

The KLOE experiment at DAΦNE has collected data for an integrated luminosity of ~ 1.3 fb-1 from e+e- collisions at center-of-mass energy around the ϕ-meson peak, W ~1.02 GeV . A selection of results obtained from a sample of 450 pb-1 of data acquired during year 2001 and 2002 is presented. Studying tagged KS and KL-mesons produced in the reaction e+e-→ϕ→KS KL we measured the branching ratio of the decay KS→πeν, the upper limit on the decay KS→π0π0π0, and the main KL decay branching ratios. Exploiting the initial state radiation in the reaction e+e-→π+π-γ, we extracted the hadronic cross-section as a function of the squared center-of-mass energy sπ of the π π system, in the range 0.35 < sπ < 0.95 GeV 2.

Published
2005

47. Light meson spectroscopy with the KLOE experiment

Author

AMBROSINO, FABIO, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, M. Barva, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, G. Carboni, F. Ceradini, F. Cervelli, S. Chi, P. Ciambrone, S. Conetti, E. D. Lucia, A. D. Santis, P. D. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, B. D. Micco, A. Doria, M. Dreucci, A. Farilla, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martemianov, M. Martini, M. Matsyuk, W. Mei, S. Meola, R. Messi, S. Miscetti, F. Nguyen, M. Palutan, E. Pasqualucci, L. Passalacqua, A. Passeri, V. Patera, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, E. Spiriti, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, S. Ventura, R. Versaci, I. Villella, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, M., Barva, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, G., Carboni, F., Ceradini, F., Cervelli, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E. D., Lucia, A. D., Santi, P. D., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, DI DONATO, Camilla, S. D., Falco, B. D., Micco, A., Doria, M., Dreucci, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martemianov, M., Martini, Massarotti, Paolo, M., Matsyuk, W., Mei, S., Meola, R., Messi, S., Miscetti, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, Perfetto, Francesco, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, E., Spiriti, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, S., Ventura, R., Versaci, I., Villella, and G., Xu

Subjects
BRANCHING RATIO, DECAY, DETECTOR, ETA, PHI
Published
2005

48. Measurement of sigma(e(+)e(-) -> pi(+)pi(-)) using the radiative return with the KLOE detector

Author

AMBROSINO, FABIO, CAPUSSELA, TIZIANA, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, NAPOLITANO, MARCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, M. Barva, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, G. Carboni, F. Ceradini, F. Cervelli, S. Chi, P. Ciambrone, S. Conetti, E. D. Lucia, A. D. Santis, P. D. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, B. D. Micco, A. Doria, M. Dreucci, A. Farilla, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martemianov, M. Martini, M. Matsyuk, W. Mei, S. Meola, R. Messi, S. Miscetti, F. Nguyen, M. Palutan, E. Pasqualucci, L. Passalacqua, A. Passeri, V. Patera, F. Perfetto, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, E. Spiriti, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, S. Ventura, R. Versaci, I. Villella, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, M., Barva, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, Capussela, Tiziana, G., Carboni, F., Ceradini, F., Cervelli, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E. D., Lucia, A. D., Santi, P. D., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, DI DONATO, Camilla, S. D., Falco, B. D., Micco, A., Doria, M., Dreucci, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martemianov, M., Martini, Massarotti, Paolo, M., Matsyuk, W., Mei, S., Meola, R., Messi, S., Miscetti, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, F., Perfetto, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, E., Spiriti, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, S., Ventura, R., Versaci, I., Villella, and G., Xu

Published
2005

49. Recent KLOE Results on Kaon Physics

Author

AMBROSINO, FABIO, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, MEOLA, SABINO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, M. Barva, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, S. A. Bulychjov, R. Caloi, P. Campana, G. Capon, T. Capussela, G. Carboni, F. Ceradini, F. Cervelli, S. Chi, P. Ciambrone, S. Conetti, E. D. Lucia, A. D. Santis, P. d. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, B. D. Micco, A. Doria, M. Dreucci, A. Farilla, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martemianov, M. Martini, M. Matsyuk, W. Mei, R. Messi, S. Miscetti, M. Moulson, S. Muller, F. Murtas, F. Nguyen, M. Palutan, E. Pasqualucci, L. Passalacqua, A. Passeri, V. Patera, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, R. D. Schamberger, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, A. Sibidanov, T. Spadaro, E. Spiriti, M. Tabidze, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, R. Versaci, I. Villella, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, M., Barva, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, S. A., Bulychjov, R., Caloi, P., Campana, G., Capon, T., Capussela, G., Carboni, F., Ceradini, F., Cervelli, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E. D., Lucia, A. D., Santi, P. d., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, DI DONATO, Camilla, S. D., Falco, B. D., Micco, A., Doria, M., Dreucci, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martemianov, M., Martini, Massarotti, Paolo, M., Matsyuk, W., Mei, Meola, Sabino, R., Messi, S., Miscetti, M., Moulson, S., Muller, F., Murta, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, Perfetto, Francesco, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, R. D., Schamberger, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, E., Spiriti, M., Tabidze, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, R., Versaci, I., Villella, and G., Xu

Subjects
Physics, Nuclear physics, Particle physics, Annihilation, Branching fraction, Center of mass
Abstract

The KLOE experiment at DAΦNE has collected ∼ 450 pb−1 of e+e− collisions at center of mass energy W ∼ 1.02 GeV. Final results on the BR(KS → 3π0), KL dominant Branching ratio, KL lifetime and the extraction of the CKM parameter Vus are presented.

Published
2005

50. A direct search for the C P-violating decay K-S -> 3 pi(0) with the KLOE detector at DA Phi NE

Author

AMBROSINO, FABIO, CHIEFARI, GIOVANNI, DI DONATO, CAMILLA, MASSAROTTI, PAOLO, NAPOLITANO, MARCO, PERFETTO, FRANCESCO, SARACINO, GIULIO, A. Antonelli, M. Antonelli, C. Bacci, M. Barva, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, D. Bowring, P. Branchini, R. Caloi, P. Campana, G. Capon, T. Capussela, G. Carboni, F. Ceradini, F. Cervelli, S. Chi, P. Ciambrone, S. Conetti, E. D. Lucia, A. D. Santis, P. D. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, B. D. Micco, A. Doria, M. Dreucci, A. Farilla, G. Felici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, P. Franzini, C. Gatti, P. Gauzzi, S. Giovannella, E. Gorini, E. Graziani, M. Incagli, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, D. Leone, M. Martemianov, M. Martini, M. Matsyuk, W. Mei, S. Meola, R. Messi, S. Miscetti, F. Nguyen, M. Palutan, E. Pasqualucci, L. Passalacqua, A. Passeri, V. Patera, L. Pontecorvo, M. Primavera, P. Santangelo, E. Santovetti, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, T. Spadaro, E. Spiriti, M. Testa, L. Tortora, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, A. Ventura, S. Ventura, R. Versaci, I. Villella, G. Xu, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, M., Barva, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, D., Bowring, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, G., Carboni, F., Ceradini, F., Cervelli, S., Chi, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E. D., Lucia, A. D., Santi, P. D., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, DI DONATO, Camilla, S. D., Falco, B. D., Micco, A., Doria, M., Dreucci, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martemianov, M., Martini, Massarotti, Paolo, M., Matsyuk, W., Mei, S., Meola, R., Messi, S., Miscetti, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, Perfetto, Francesco, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, T., Spadaro, E., Spiriti, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, S., Ventura, R., Versaci, I., Villella, and G., Xu

Subjects
e(+)e(-) collisions, DA Phi NE, KLOE, rare K-S decays, CP, CPT
Published
2005

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