doi: 10.1103/PhysRevLett.126.082002.
Photoproduction of the f_{2}(1270) Meson Using the CLAS Detector
M Carver
1
, A Celentano
2
, K Hicks
1
, L Marsicano
2
, V Mathieu
3
, A Pilloni
2
4
5
, K P Adhikari
6
, S Adhikari
7
, M J Amaryan
6
, G Angelini
8
, H Atac
9
, N A Baltzell
10
11
, L Barion
12
, M Battaglieri
2
10
, I Bedlinskiy
13
, F Benmokhtar
14
, A Bianconi
15
16
, A S Biselli
17
, M Bondi
2
, F Bossù
18
, S Boiarinov
10
, W J Briscoe
8
, W K Brooks
19
, D Bulumulla
6
, V D Burkert
10
, D S Carman
10
, J C Carvajal
7
, P Chatagnon
20
, T Chetry
21
, G Ciullo
12
22
, L Clark
23
, B A Clary
24
, P L Cole
25
26
, M Contalbrigo
12
, V Crede
27
, A D'Angelo
28
29
, N Dashyan
30
, R De Vita
2
, M Defurne
18
, A Deur
10
, S Diehl
24
31
, C Djalali
1
11
, M Dugger
32
, R Dupre
20
, H Egiyan
10
33
, M Ehrhart
34
, A El Alaoui
19
, L El Fassi
21
34
, P Eugenio
27
, G Fedotov
35
, S Fegan
36
, A Filippi
37
, G Gavalian
6
10
, N Gevorgyan
30
, G P Gilfoyle
38
, F X Girod
10
18
, R W Gothe
11
, K A Griffioen
39
, K Hafidi
34
, H Hakobyan
19
30
, M Hattawy
6
, T B Hayward
39
, D Heddle
10
40
, M Holtrop
33
, Q Huang
18
, C E Hyde
6
, Y Ilieva
11
, D G Ireland
23
, E L Isupov
35
, D Jenkins
41
, H S Jo
42
, K Joo
24
, S Joosten
34
, D Keller
1
43
, A Khanal
7
, M Khandaker
44
, A Kim
24
, C W Kim
8
, F J Klein
45
, A Kripko
31
, V Kubarovsky
10
, L Lanza
28
, M Leali
15
16
, P Lenisa
12
22
, K Livingston
23
, I J D MacGregor
23
, D Marchand
20
, V Mascagna
16
46
, M E McCracken
47
, B McKinnon
23
, Z E Meziani
34
, V Mokeev
10
35
, A Movsisyan
12
, E Munevar
8
, C Munoz Camacho
20
, P Nadel-Turonski
10
45
, K Neupane
11
, S Niccolai
20
, G Niculescu
48
, M Osipenko
2
, A I Ostrovidov
27
, M Paolone
9
, L L Pappalardo
12
22
, R Paremuzyan
10
, E Pasyuk
10
, W Phelps
40
, O Pogorelko
13
, Y Prok
6
43
, D Protopopescu
23
, M Ripani
2
, B G Ritchie
32
, J Ritman
49
, A Rizzo
28
29
, G Rosner
23
, J Rowley
1
, F Sabatié
18
, C Salgado
44
, A Schmidt
8
, R A Schumacher
47
, Y G Sharabian
10
, U Shrestha
1
, D Sokhan
23
, O Soto
50
, N Sparveris
9
, S Stepanyan
10
, I I Strakovsky
8
, S Strauch
11
, N Tyler
11
, R Tyson
23
, M Ungaro
10
24
, L Venturelli
15
16
, H Voskanyan
30
, E Voutier
20
, D P Watts
36
, K Wei
24
, X Wei
10
, B Yale
39
, N Zachariou
36
, J Zhang
6
43
, Z W Zhao
11
51
; CLAS Collaboration
Affiliations
Affiliations
- 1 Ohio University, Athens, Ohio 45701, USA.
- 2 INFN, Sezione di Genova, 16146 Genova, Italy.
- 3 Departamento de Fsica Terica and IPARCOS, Universidad Complutense de Madrid, 28040 Madrid, Spain.
- 4 European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Strada delle Tavarnelle 286, Villazzano (Trento) I-38123, Italy.
- 5 INFN, Sezione di Roma, 00185 Roma, Italy.
- 6 Old Dominion University, Norfolk, Virginia 23529, USA.
- 7 Florida International University, Miami, Florida 33199, USA.
- 8 The George Washington University, Washington, D.C. 20052, USA.
- 9 Temple University, Philadelphia, Pennsylvania 19122, USA.
- 10 Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
- 11 University of South Carolina, Columbia, South Carolina 29208, USA.
- 12 INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
- 13 National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia.
- 14 Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
- 15 Università degli Studi di Brescia, 25123 Brescia, Italy.
- 16 INFN, Sezione di Pavia, 27100 Pavia, Italy.
- 17 Fairfield University, Fairfield, Connecticut 06824, USA.
- 18 IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
- 19 Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
- 20 Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
- 21 Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
- 22 Universita' di Ferrara, 44121 Ferrara, Italy.
- 23 University of Glasgow, Glasgow G12 8QQ, United Kingdom.
- 24 University of Connecticut, Storrs, Connecticut 06269, USA.
- 25 Lamar University, 4400 MLK Boulevard, PO Box 10046, Beaumont, Texas 77710, USA.
- 26 Idaho State University, Pocatello, Idaho 83209, USA.
- 27 Florida State University, Tallahassee, Florida 32306 USA.
- 28 INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
- 29 Universita' di Roma Tor Vergata, 00133 Rome, Italy.
- 30 Yerevan Physics Institute, 375036 Yerevan, Armenia.
- 31 II Physikalisches Institut der Universitaet Giessen 35392, Germany.
- 32 Arizona State University, Tempe, Arizona 85287-1504, USA.
- 33 University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
- 34 Argonne National Laboratory, Argonne, Illinois 60439, USA.
- 35 Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
- 36 University of York, York YO10 5DD, United Kingdom.
- 37 INFN, Sezione di Torino, 10125 Torino, Italy.
- 38 University of Richmond, Richmond, Virginia 23173, USA.
- 39 College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
- 40 Christopher Newport University, Newport News, Virginia 23606, USA.
- 41 Virginia Tech, Blacksburg, Virginia 24061-0435, USA.
- 42 Kyungpook National University, Daegu 41566, Republic of Korea.
- 43 University of Virginia, Charlottesville, Virginia 22901j, USA.
- 44 Norfolk State University, Norfolk, Virginia 23504, USA.
- 45 Catholic University of America, Washington, D.C. 20064, USA.
- 46 Università degli Studi dell'Insubria, 22100 Como, Italy.
- 47 Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
- 48 James Madison University, Harrisonburg, Virginia 22807, USA.
- 49 Institute fur Kernphysik (Juelich), Juelich, Germany.
- 50 INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
- 51 Duke University, Durham, North Carolina 27708-0305, USA.
- PMID: 33709753
- DOI: 10.1103/PhysRevLett.126.082002
Item in Clipboard
Photoproduction of the f_{2}(1270) Meson Using the CLAS Detector
M Carver et al.
Phys Rev Lett.
.
Free article
Display options
Format
doi: 10.1103/PhysRevLett.126.082002.
Authors
M Carver
1
, A Celentano
2
, K Hicks
1
, L Marsicano
2
, V Mathieu
3
, A Pilloni
2
4
5
, K P Adhikari
6
, S Adhikari
7
, M J Amaryan
6
, G Angelini
8
, H Atac
9
, N A Baltzell
10
11
, L Barion
12
, M Battaglieri
2
10
, I Bedlinskiy
13
, F Benmokhtar
14
, A Bianconi
15
16
, A S Biselli
17
, M Bondi
2
, F Bossù
18
, S Boiarinov
10
, W J Briscoe
8
, W K Brooks
19
, D Bulumulla
6
, V D Burkert
10
, D S Carman
10
, J C Carvajal
7
, P Chatagnon
20
, T Chetry
21
, G Ciullo
12
22
, L Clark
23
, B A Clary
24
, P L Cole
25
26
, M Contalbrigo
12
, V Crede
27
, A D'Angelo
28
29
, N Dashyan
30
, R De Vita
2
, M Defurne
18
, A Deur
10
, S Diehl
24
31
, C Djalali
1
11
, M Dugger
32
, R Dupre
20
, H Egiyan
10
33
, M Ehrhart
34
, A El Alaoui
19
, L El Fassi
21
34
, P Eugenio
27
, G Fedotov
35
, S Fegan
36
, A Filippi
37
, G Gavalian
6
10
, N Gevorgyan
30
, G P Gilfoyle
38
, F X Girod
10
18
, R W Gothe
11
, K A Griffioen
39
, K Hafidi
34
, H Hakobyan
19
30
, M Hattawy
6
, T B Hayward
39
, D Heddle
10
40
, M Holtrop
33
, Q Huang
18
, C E Hyde
6
, Y Ilieva
11
, D G Ireland
23
, E L Isupov
35
, D Jenkins
41
, H S Jo
42
, K Joo
24
, S Joosten
34
, D Keller
1
43
, A Khanal
7
, M Khandaker
44
, A Kim
24
, C W Kim
8
, F J Klein
45
, A Kripko
31
, V Kubarovsky
10
, L Lanza
28
, M Leali
15
16
, P Lenisa
12
22
, K Livingston
23
, I J D MacGregor
23
, D Marchand
20
, V Mascagna
16
46
, M E McCracken
47
, B McKinnon
23
, Z E Meziani
34
, V Mokeev
10
35
, A Movsisyan
12
, E Munevar
8
, C Munoz Camacho
20
, P Nadel-Turonski
10
45
, K Neupane
11
, S Niccolai
20
, G Niculescu
48
, M Osipenko
2
, A I Ostrovidov
27
, M Paolone
9
, L L Pappalardo
12
22
, R Paremuzyan
10
, E Pasyuk
10
, W Phelps
40
, O Pogorelko
13
, Y Prok
6
43
, D Protopopescu
23
, M Ripani
2
, B G Ritchie
32
, J Ritman
49
, A Rizzo
28
29
, G Rosner
23
, J Rowley
1
, F Sabatié
18
, C Salgado
44
, A Schmidt
8
, R A Schumacher
47
, Y G Sharabian
10
, U Shrestha
1
, D Sokhan
23
, O Soto
50
, N Sparveris
9
, S Stepanyan
10
, I I Strakovsky
8
, S Strauch
11
, N Tyler
11
, R Tyson
23
, M Ungaro
10
24
, L Venturelli
15
16
, H Voskanyan
30
, E Voutier
20
, D P Watts
36
, K Wei
24
, X Wei
10
, B Yale
39
, N Zachariou
36
, J Zhang
6
43
, Z W Zhao
11
51
; CLAS Collaboration
Affiliations
- 1 Ohio University, Athens, Ohio 45701, USA.
- 2 INFN, Sezione di Genova, 16146 Genova, Italy.
- 3 Departamento de Fsica Terica and IPARCOS, Universidad Complutense de Madrid, 28040 Madrid, Spain.
- 4 European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Strada delle Tavarnelle 286, Villazzano (Trento) I-38123, Italy.
- 5 INFN, Sezione di Roma, 00185 Roma, Italy.
- 6 Old Dominion University, Norfolk, Virginia 23529, USA.
- 7 Florida International University, Miami, Florida 33199, USA.
- 8 The George Washington University, Washington, D.C. 20052, USA.
- 9 Temple University, Philadelphia, Pennsylvania 19122, USA.
- 10 Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
- 11 University of South Carolina, Columbia, South Carolina 29208, USA.
- 12 INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
- 13 National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia.
- 14 Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
- 15 Università degli Studi di Brescia, 25123 Brescia, Italy.
- 16 INFN, Sezione di Pavia, 27100 Pavia, Italy.
- 17 Fairfield University, Fairfield, Connecticut 06824, USA.
- 18 IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
- 19 Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
- 20 Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
- 21 Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
- 22 Universita' di Ferrara, 44121 Ferrara, Italy.
- 23 University of Glasgow, Glasgow G12 8QQ, United Kingdom.
- 24 University of Connecticut, Storrs, Connecticut 06269, USA.
- 25 Lamar University, 4400 MLK Boulevard, PO Box 10046, Beaumont, Texas 77710, USA.
- 26 Idaho State University, Pocatello, Idaho 83209, USA.
- 27 Florida State University, Tallahassee, Florida 32306 USA.
- 28 INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
- 29 Universita' di Roma Tor Vergata, 00133 Rome, Italy.
- 30 Yerevan Physics Institute, 375036 Yerevan, Armenia.
- 31 II Physikalisches Institut der Universitaet Giessen 35392, Germany.
- 32 Arizona State University, Tempe, Arizona 85287-1504, USA.
- 33 University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
- 34 Argonne National Laboratory, Argonne, Illinois 60439, USA.
- 35 Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
- 36 University of York, York YO10 5DD, United Kingdom.
- 37 INFN, Sezione di Torino, 10125 Torino, Italy.
- 38 University of Richmond, Richmond, Virginia 23173, USA.
- 39 College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
- 40 Christopher Newport University, Newport News, Virginia 23606, USA.
- 41 Virginia Tech, Blacksburg, Virginia 24061-0435, USA.
- 42 Kyungpook National University, Daegu 41566, Republic of Korea.
- 43 University of Virginia, Charlottesville, Virginia 22901j, USA.
- 44 Norfolk State University, Norfolk, Virginia 23504, USA.
- 45 Catholic University of America, Washington, D.C. 20064, USA.
- 46 Università degli Studi dell'Insubria, 22100 Como, Italy.
- 47 Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
- 48 James Madison University, Harrisonburg, Virginia 22807, USA.
- 49 Institute fur Kernphysik (Juelich), Juelich, Germany.
- 50 INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
- 51 Duke University, Durham, North Carolina 27708-0305, USA.
- PMID: 33709753
- DOI: 10.1103/PhysRevLett.126.082002
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Abstract
The quark structure of the f_{2}(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq[over ¯]) resonance with quantum numbers J^{PC}=2^{++}. Recently, it was proposed that the f_{2}(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π^{+}π^{-}, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π^{0}π^{0}p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f_{2}(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.
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