Search: (WFRF:(Di Leo L)) pers:(Di Domenico A.) >
Measurement of the ...
Measurement of the running of the fine structure constant below 1 GeV with the KLOE detector
-
- Anastasi, A. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.;Univ Messina, Dipartimento Sci Matemat & Informat, Sci Fis & Sci Terra, Messina, Italy.
-
- Babusci, D. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
Bencivenni, G. (author)
-
show more...
-
Berlowski, M. (author)
-
- Bloise, C. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Bossi, F. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Branchini, R. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Budano, A. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Caldeira Balkeståhl, Li (author)
- Uppsala universitet,Kärnfysik
-
- Cao, Bo (author)
- Uppsala universitet,Kärnfysik
-
- Ceradini, F. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Ciambrone, R. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Curciarello, F. (author)
- Ist Nazl Fis Nucl, Sez Catania, Catania, Italy.;Univ Messina, Dipartimento Sci Matemat & Informat, Sci Fis & Sci Terra, Messina, Italy.;Novosibirsk State Univ, Novosibirsk 630090, Russia.
-
- Czerwinski, E. (author)
- Jagiellonian Univ, Inst Phys, Krakow, Poland.
-
- D'Agostini, G. (author)
- Univ Sapienza, Dipartimento Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
-
Dane, E. (author)
-
- De Leo, V. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
De Lucia, E. (author)
-
- De Santis, A. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- De Simone, R. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Di Cicco, A. (author)
- Univ Roma Tre, Dipartimento Matemat & Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Di Domenico, A. (author)
- Univ Sapienza, Dipartimento Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
-
Di Salvo, R. (author)
-
- Domenici, D. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
D'Uffizi, A. (author)
-
- Fantini, A. (author)
- Univ Tor Vergata, Dipartimento Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
-
Felici, G. (author)
-
- Fiore, S. (author)
- Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.;Casaccia RC, ENEA UTTMAT IRR, Rome, Italy.
-
- Gajos, A. (author)
- Jagiellonian Univ, Inst Phys, Krakow, Poland.
-
- Gauzzi, R. (author)
- Univ Sapienza, Dipartimento Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
-
- Giardina, G. (author)
- Univ Messina, Dipartimento Sci Matemat & Informat, Sci Fis & Sci Terra, Messina, Italy.
-
- Giovannella, S. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
Graziani, E. (author)
-
- Happacher, F. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Heijkenskjöld, Lena, 1985- (author)
- Uppsala universitet,Kärnfysik
-
- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
-
Kaminska, D. (author)
-
- Krzemien, W. (author)
- Natl Ctr Nucl Res, Warsaw, Poland.
-
- Kupsc, Andrzej (author)
- Uppsala universitet,Kärnfysik
-
Loffredo, S. (author)
-
- Lukin, P. A. (author)
- Novosibirsk State Univ, Novosibirsk 630090, Russia.;Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
-
- Mandaglio, G. (author)
- Univ Messina, Dipartimento Sci Chim Biol Farmaceut & Ambientali, Messina, Italy.;Ist Nazl Fis Nucl, Grp Collegato Messina, Messina, Italy.
-
- Martini, M. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.;Univ Guglielmo Marconi, Dipartimento Sci & Tecnol Applicate, Rome, Italy.
-
- Mascolo, M. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Messi, R. (author)
- Univ Tor Vergata, Dipartimento Fis, Rome, Italy.;Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
-
- Miscetti, S. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Morello, G. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Moricciani, D. (author)
- Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
-
Moskal, R. (author)
-
Papenbrock, M. (author)
-
- Passeri, A. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Patera, V. (author)
- Univ Sapienza, Dipartimento Sci Base & Applicate Ingn, Rome, Italy.
-
- del Rio, E. Perez (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Ranieri, A. (author)
- Ist Nazl Fis Nucl, Sez Bari, Bari, Italy.
-
- Santangelo, R. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Sarra, I. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Schioppa, M. (author)
- Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy.;Ist Nazl Fis Nucl, Grp Collegato Cosenza, Arcavacata Di Rende, Italy.
-
- Selce, A. (author)
- Univ Roma Tre, Dipartimento Matemat & Fis, Rome, Italy.
-
- Silarski, M. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Sirghi, F. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
- Tortora, L. (author)
- Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
-
- Venanzoni, G. (author)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy.
-
Wislicki, W. (author)
-
Wolke, M. (author)
-
- Jegerlehner, F. (author)
- Uppsala universitet,Kärnfysik,Humboldt Univ, Inst Phys, Berlin, Germany.;Deutsch Elektronen Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany.
-
show less...
-
Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy;Univ Messina, Dipartimento Sci Matemat & Informat, Sci Fis & Sci Terra, Messina, Italy. Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy. (creator_code:org_t)
- ELSEVIER SCIENCE BV, 2017
- 2017
- English.
-
In: Physics Letters B. - : ELSEVIER SCIENCE BV. - 0370-2693 .- 1873-2445. ; 767, s. 485-492
- Related links:
-
https://uu.diva-port... (primary) (Raw object)
-
show more...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- We have measured the running of the effective QED coupling constant alpha(s) in the time-like region 0.6 < root s < 0.975 GeV with the KLOE detector at DA Phi NE using the Initial-State Radiation process e(+) e(-) -> mu(+) mu(-)gamma. It represents the first measurement of the running of alpha(s) in this energy region. Our results show a more than 5 sigma significance of the hadronic contribution to the running of alpha(s), which is the strongest direct evidence both in time- and space-like regions achieved in a single measurement. By using the e(+) e(-) -> pi(+) pi(-) cross section measured by KLOE, the real and imaginary parts of the shift Delta alpha(s) have been extracted. From a fit of the real part of Delta alpha(s) and assuming the lepton universality the branching ratio BR(omega -> mu(+) mu(-)) = (6.6 +/- 1.4(stat) +/- 1.7(syst)) (.) 10 (5)has been determined.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Vacuum polarization
- arunning
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Anastasi, A.
-
Babusci, D.
-
Bencivenni, G.
-
Berlowski, M.
-
Bloise, C.
-
Bossi, F.
-
show more...
-
Branchini, R.
-
Budano, A.
-
Caldeira Balkest ...
-
Cao, Bo
-
Ceradini, F.
-
Ciambrone, R.
-
Curciarello, F.
-
Czerwinski, E.
-
D'Agostini, G.
-
Dane, E.
-
De Leo, V.
-
De Lucia, E.
-
De Santis, A.
-
De Simone, R.
-
Di Cicco, A.
-
Di Domenico, A.
-
Di Salvo, R.
-
Domenici, D.
-
D'Uffizi, A.
-
Fantini, A.
-
Felici, G.
-
Fiore, S.
-
Gajos, A.
-
Gauzzi, R.
-
Giardina, G.
-
Giovannella, S.
-
Graziani, E.
-
Happacher, F.
-
Heijkenskjöld, L ...
-
Johansson, Tord
-
Kaminska, D.
-
Krzemien, W.
-
Kupsc, Andrzej
-
Loffredo, S.
-
Lukin, P. A.
-
Mandaglio, G.
-
Martini, M.
-
Mascolo, M.
-
Messi, R.
-
Miscetti, S.
-
Morello, G.
-
Moricciani, D.
-
Moskal, R.
-
Papenbrock, M.
-
Passeri, A.
-
Patera, V.
-
del Rio, E. Pere ...
-
Ranieri, A.
-
Santangelo, R.
-
Sarra, I.
-
Schioppa, M.
-
Selce, A.
-
Silarski, M.
-
Sirghi, F.
-
Tortora, L.
-
Venanzoni, G.
-
Wislicki, W.
-
Wolke, M.
-
Jegerlehner, F.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Subatomic Physic ...
- Articles in the publication
-
Physics Letters ...
- By the university
-
Uppsala University