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Evidence for the Rare Decay Sigma(+) -> p mu(+)mu(-)

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Title: Evidence for the Rare Decay Sigma(+) -> p mu(+)mu(-)
Authors: Aaij, R
Adeva, B
Adinolfi, M
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
Alfonso Albero, A
Ali, S
Alkhazov, G
Garcia Martin, LM
Garcia Pardinas, J
Garra Tico, J
Garrido, L
Gascon, D
Artuso, M
Gaspar, C
Gavardi, L
Gazzoni, G
Camboni, A
Demmer, M
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Ghez, P
Giani, S
Gibson, V
Aslanides, E
Girard, OG
Giubega, L
Dendek, A
Campana, P
Gizdov, K
Gligorov, VV
Golubkov, D
Golutvin, A
Gomes, A
Gorelov, IV
Gotti, C
Govorkova, E
Atzeni, M
Derkach, D
Grabowski, JP
Alvarez Cartelle, P
Graciani Diaz, R
Granado Cardoso, LA
Grauges, E
Graverini, E
Graziani, G
Grecu, A
Greim, R
Griffith, P
Deschamps, O
Grillo, L
Auriemma, G
Campora Perez, DH
Gruber, L
Gruberg Cazon, BR
Grunberg, O
Gushchin, E
Guz, Y
Gys, T
Gobel, C
Dettori, F
Hadavizadeh, T
Hadjivasiliou, C
Haefeli, G
Capriotti, L
Baalouch, M
Haen, C
Haines, SC
Hamilton, B
Han, X
Hancock, TH
Dey, B
Hansmann-Menzemer, S
Harnew, N
Harnew, ST
Hasse, C
Carbone, A
Hatch, M
Babuschkin, I
He, J
Hecker, M
Heinicke, K
Di Canto, A
Heister, A
Hennessy, K
Henrard, P
Henry, L
Van Herwijnen, E
Carboni, G
Hess, M
Hicheur, A
Bachmann, S
Hill, D
Di Nezza, P
Hopchev, PH
Hu, W
Huang, W
Huard, ZC
Hulsbergen, W
Humair, T
Cardinale, R
Hushchyn, M
Hutchcroft, D
Ibis, P
Dijkstra, H
Back, JJ
Idzik, M
Ilten, P
Jacobsson, R
Jalocha, J
Jans, E
Jawahery, A
Cardini, A
Jiang, F
John, M
Andreotti, M
Johnson, D
Jones, CR
Badalov, A
Joram, C
Jost, B
Jurik, N
Kandybei, S
Karacson, M
Carniti, P
Kariuki, JM
Buytaert, J
Karodia, S
Kazeev, N
Kecke, M
Keizer, F
Baesso, C
Kelsey, M
Kenzie, M
Ketel, T
Khairullin, E
Carson, L
Dordei, F
Khanji, B
Khurewathanakul, C
Kim, KE
Kirn, T
Klaver, S
Klimaszewski, K
Baker, S
Klimkovich, T
Koliiev, S
Kolpin, M
Dorigo, M
Carvalho Akiba, K
Kopecna, R
Koppenburg, P
Kosmyntseva, A
Kotriakhova, S
Kozeiha, M
Kravchuk, L
Kreps, M
Balagura, V
Kress, F
Dosil Suarez, A
Krokovny, P
Casse, G
Krzemien, W
Kucewicz, W
Kucharczyk, M
Kudryavtsev, V
Kuonen, AK
Kvaratskheliya, T
Lacarrere, D
Lafferty, G
Douglas, L
Baldini, W
Lai, A
Alves, AA
Lanfranchi, G
Langenbruch, C
Latham, T
Lazzeroni, C
Le Gac, R
Leflat, A
Lefrancois, J
Dovbnya, A
Lefevre, R
Lemaitre, F
Baranov, A
Cassina, L
Cid, EL
Leroy, O
Lesiak, T
Leverington, B
Li, P-R
Li, T
Dreimanis, K
Li, Y
Li, Z
Liang, X
Likhomanenko, T
Cattaneo, M
Barlow, RJ
Lindner, R
Lionetto, F
Lisovskyi, V
Liu, X
Dufour, L
Loh, D
Loi, A
Longstaff, I
Lopes, JH
Lucchesi, D
Cavallero, G
Lucio Martinez, M
Barschel, C
Luo, H
Lupato, A
Dujany, G
Luppi, E
Lupton, O
Lusiani, A
Lyu, X
Machefert, F
Maciuc, F
Cenci, R
Macko, V
Mackowiak, P
Barsuk, S
Durante, P
Maddrell-Mander, S
Maev, O
Maguire, K
Maisuzenko, D
Majewski, MW
Malde, S
Malecki, B
Chamont, D
Malinin, A
Maltsev, T
Durham, JM
Manca, G
Barter, W
Mancinelli, G
Marangotto, D
Maratas, J
Marchand, JF
Marconi, U
Marin Benito, C
Chapman, MG
Marinangeli, M
Byczynski, W
Marino, P
Marks, J
Martellotti, G
Baryshnikov, F
Martin, M
Martinelli, M
Martinez Santos, D
Martinez Vidal, F
Massafferri, A
Charles, M
Andrews, JE
Matev, R
Mathad, A
Mathe, Z
Matteuzzi, C
Mauri, A
Batozskaya, V
Maurice, E
Maurin, B
Mazurov, A
McCann, M
Dutta, D
Charpentier, P
McNab, A
McNulty, R
Mead, JV
Meadows, B
Meaux, C
Meier, F
Battista, V
Meinert, N
Melnychuk, D
Dzhelyadin, R
Merk, M
Chatzikonstantinidis, G
Merli, A
Michielin, E
Milanes, DA
Millard, E
Minard, M-N
Minzoni, L
Mitzel, DS
Bay, A
Dziewiecki, M
Mogini, A
Molina Rodriguez, J
Chefdeville, M
Mombacher, T
Monroy, IA
Monteil, S
Morandin, M
Morello, MJ
Morgunova, O
Moron, J
Dziurda, A
Morris, AB
Beaucourt, L
Mountain, R
Amato, S
Muheim, F
Mulder, M
Mueller, D
Mueller, J
Mueller, K
Mueller, V
Dzyuba, A
Naik, P
Nakada, T
Nandakumar, R
Beddow, J
Chen, S
Nandi, A
Nasteva, I
Needham, M
Neri, N
Neubert, S
Easo, S
Neufeld, N
Neuner, M
Nguyen, TD
Nguyen-Mau, C
Nieswand, S
Cheung, SF
Bedeschi, F
Niet, R
Nikitin, N
Nikodem, T
Egede, U
Nogay, A
O'Hanlon, DP
Oblakowska-Mucha, A
Obraztsov, V
Ogilvy, S
Oldeman, R
Chitic, S-G
Onderwater, CJG
Bediaga, I
Ossowska, A
Egorychev, V
Otalora Goicochea, JM
Owen, P
Oyanguren, A
Pais, PR
Palano, A
Palutan, M
Panshin, G
Chobanova, V
Papanestis, A
Pappagallo, M
Eidelman, S
Beiter, A
Pappalardo, LL
Parker, W
Parkes, C
Passaleva, G
Pastore, A
Patel, M
Patrignani, C
Chrzaszcz, M
Pearce, A
Cadeddu, S
Pellegrino, A
Penso, G
Bel, LJ
Pepe Altarelli, M
Perazzini, S
Pereima, D
Perret, P
Pescatore, L
Petridis, K
Chubykin, A
Eisenhardt, S
Petrolini, A
Petrov, A
Petruzzo, M
Picatoste Olloqui, E
Beliy, N
Pietrzyk, B
Pietrzyk, G
Pikies, M
Pinci, D
Pisani, F
Appleby, RB
Ciambrone, P
Pistone, A
Piucci, A
Placinta, V
Playfer, S
Plo Casasus, M
Bellee, V
Polci, F
Lener, MP
Poluektov, A
Eitschberger, U
Polyakov, I
Cid Vidal, X
Polycarpo, E
Pomery, GJ
Ponce, S
Popov, A
Popov, D
Poslavskii, S
Belloli, N
Potterat, C
Ekelhof, R
Price, E
Prisciandaro, J
Ciezarek, G
Prouve, C
Pugatch, V
Puig Navarro, A
Pullen, H
Punzi, G
Qian, W
Qin, J
Eklund, L
Belous, K
Quagliani, R
Quintana, B
Clarke, PEL
Rachwal, B
Rademacker, JH
Rama, M
Ramos Pernas, M
Rangel, MS
Raniuk, I
Ely, S
Ratnikov, F
Raven, G
Belyaev, I
Ravonel Salzgeber, M
Amerio, S
Reboud, M
Redi, F
Reichert, S
Dos Reis, AC
Remon Alepuz, C
Esen, S
Renaudin, V
Ricciardi, S
Richards, S
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Ben-Haim, E
Clemencic, M
Rinnert, K
Robbe, P
Robert, A
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Rodrigues, E
Rodriguez Lopez, JA
Rogozhnikov, A
Roiser, S
Rollings, A
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Ruiz Valls, P
Ruiz Vidal, J
Saborido Silva, JJ
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Salustino Guimaraes, V
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Andreassi, G
Dembinski, H-P
Forty, R
Arnau Romeu, J
Franco Lima, V
Frank, M
Frei, C
Fu, J
Funk, W
Calvi, M
Furfaro, E
Farber, C
Gabriel, E
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Item Type: Journal Article
Abstract: A search for the rare decay Σ+→pμ+μ− is performed using pp collision data recorded by the LHCb experiment at center-of-mass energies √s=7 and 8 TeV, corresponding to an integrated luminosity of 3  fb−1. An excess of events is observed with respect to the background expectation, with a signal significance of 4.1 standard deviations. No significant structure is observed in the dimuon invariant mass distribution, in contrast with a previous result from the HyperCP experiment. The measured Σ+→pμ+μ− branching fraction is (2.2+1.8−1.3)×10−8, where statistical and systematic uncertainties are included, which is consistent with the standard model prediction.
Issue Date: 1-Jun-2018
Date of Acceptance: 1-May-2018
URI: http://hdl.handle.net/10044/1/67419
DOI: https://dx.doi.org/10.1103/PhysRevLett.120.221803
ISSN: 0031-9007
Publisher: American Physical Society
Journal / Book Title: Physical Review Letters
Volume: 120
Issue: 22
Copyright Statement: © 2018 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms oftheCreative Commons Attribution 4.0 Internationallicense.Further distribution of this work must maintain attribution tothe author(s) and the published article’s title, journal citation,and DOI. Funded by SCOAP3.
Sponsor/Funder: Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Funder's Grant Number: ST/H000992/1
ST/K001604/1
Keywords: Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
HYPERCP
PARTICLE
EVENTS
DISTRIBUTIONS
SEARCH
BOSON
TOOL
HADRONIC DECAYS
B-MESONS
ANNIHILATION
PHASE
JETS
LHCb Collaboration
hep-ex
02 Physical Sciences
General Physics
Publication Status: Published
Open Access location: https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.120.221803
Article Number: ARTN 221803
Online Publication Date: 2018-05-31
Appears in Collections:Physics
High Energy Physics
Faculty of Natural Sciences



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