Low energy antiprotons in the cosmic rays: A new upper limit
Ahlen, S. P. ; Barwick, S. ; Beatty, J. J. ; Bower, C. R. ; Gerbier, G. ; Heinz, R. M. ; Lowder, D. ; McKee, S. ; Mufson, S. ; Musser, J. A. ; Price, P. B. ; Salamon, M. H. ; Tarle, G. ; Tomasch, A. ; Zhou, B.
Springer
Published 1989
Springer
Published 1989
| ISSN: |
1572-9540
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|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798297430304751617 |
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| autor | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| autorsonst | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| book_url | http://dx.doi.org/10.1007/BF02398661 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM194354172 |
| issn | 1572-9540 |
| journal_name | Hyperfine interactions |
| materialart | 1 |
| notes | Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result. |
| package_name | Springer |
| publikationsjahr_anzeige | 1989 |
| publikationsjahr_facette | 1989 |
| publikationsjahr_intervall | 8014:1985-1989 |
| publikationsjahr_sort | 1989 |
| publisher | Springer |
| reference | 44 (1989), S. 97-103 |
| search_space | articles |
| shingle_author_1 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| shingle_author_2 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| shingle_author_3 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| shingle_author_4 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. |
| shingle_catch_all_1 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. Low energy antiprotons in the cosmic rays: A new upper limit Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result. 1572-9540 15729540 Springer |
| shingle_catch_all_2 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. Low energy antiprotons in the cosmic rays: A new upper limit Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result. 1572-9540 15729540 Springer |
| shingle_catch_all_3 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. Low energy antiprotons in the cosmic rays: A new upper limit Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result. 1572-9540 15729540 Springer |
| shingle_catch_all_4 | Ahlen, S. P. Barwick, S. Beatty, J. J. Bower, C. R. Gerbier, G. Heinz, R. M. Lowder, D. McKee, S. Mufson, S. Musser, J. A. Price, P. B. Salamon, M. H. Tarle, G. Tomasch, A. Zhou, B. Low energy antiprotons in the cosmic rays: A new upper limit Abstract Kinematics predicts the severe suppression of low-energy (〈1 GeV) secondary antiprotons in the Galactic cosmic rays. Thus the observation several years ago of a finite flux of low-energy antiprotons could not be explained with existing models of cosmic ray propagation, which led to a plethora of theoretical speculation. We have recently flown a balloon-borne instrument to measure the energy spectrum of cosmic-ray $$\bar p's$$ , and have found no antiprotons in the energy interval 200–640 MeV (corrected to the top of the atmosphere). This yields an upper limit to the $$\bar p/p$$ ratio of 5.5×10−5 (90% confidence level), well below and hence contradicting the earlier result. 1572-9540 15729540 Springer |
| shingle_title_1 | Low energy antiprotons in the cosmic rays: A new upper limit |
| shingle_title_2 | Low energy antiprotons in the cosmic rays: A new upper limit |
| shingle_title_3 | Low energy antiprotons in the cosmic rays: A new upper limit |
| shingle_title_4 | Low energy antiprotons in the cosmic rays: A new upper limit |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T10:07:52.511Z |
| titel | Low energy antiprotons in the cosmic rays: A new upper limit |
| titel_suche | Low energy antiprotons in the cosmic rays: A new upper limit |
| topic | U |
| uid | nat_lic_papers_NLM194354172 |