Photoproduction of K+ K− meson pairs on the proton.

S. Lombardo; M. Battaglieri; A. Celentano; A. D’Angelo; R. De Vita; A. Filippi; D. I. Glazier; Angela Biselli

doi:10.1103/PhysRevD.98.052009

Photoproduction of K+ K− meson pairs on the proton.

S. Lombardo, M. Battaglieri, A. Celentano, A. D’Angelo, R. De Vita, A. Filippi, D. I. Glazier, Angela Biselli

Fairfield University

Research output: Contribution to journal › Article › peer-review

Abstract

<p> The exclusive reaction γp→pK+K− was studied in the photon energy range 3.0–3.8  GeV and momentum transfer range 0.6<−t<1.3  GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was approximately 20  pb−1. The reaction was isolated by detecting the K+ and the proton in CLAS, and reconstructing the K− via the missing-mass technique. Moments of the dikaon decay angular distributions were extracted from the experimental data. Besides the dominant contribution of the ϕ meson in the P wave, evidence for S−P interference was found. The differential production cross sections dσ/dt for individual waves in the mass range of the ϕ resonance were extracted and compared to predictions of a Regge-inspired model. This is the first time the t-dependent cross section of the S-wave contribution to the elastic K+K− photoproduction has been measured.</p>

Original language	American English
Journal	Physical Review D
Volume	98
DOIs	https://doi.org/10.1103/PhysRevD.98.052009
State	Published - Jan 1 2018

Disciplines

Physical Sciences and Mathematics
Physics

Access to Document

10.1103/PhysRevD.98.052009License: CC BY

https://doi.org/10.1103/PhysRevD.98.052009

Cite this

@article{6403ee0eee5a4728b678fdd172e26a89,

title = "Photoproduction of K+ K− meson pairs on the proton.",

abstract = " The exclusive reaction \γp\→pK+K\− was studied in the photon energy range 3.0\–3.8\ \ GeV and momentum transfer range 0.6<\−t<1.3\ \ GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was approximately 20\ \ pb\−1. The reaction was isolated by detecting the K+ and the proton in CLAS, and reconstructing the K\− via the missing-mass technique. Moments of the dikaon decay angular distributions were extracted from the experimental data. Besides the dominant contribution of the \ϕ meson in the P wave, evidence for S\−P interference was found. The differential production cross sections d\σ/dt for individual waves in the mass range of the \ϕ resonance were extracted and compared to predictions of a Regge-inspired model. This is the first time the t-dependent cross section of the S-wave contribution to the elastic K+K\− photoproduction has been measured.",

author = "S. Lombardo and M. Battaglieri and A. Celentano and A. D{\textquoteright}Angelo and \{De Vita\}, R. and A. Filippi and Glazier, \{D. I.\} and Angela Biselli",

year = "2018",

month = jan,

day = "1",

doi = "10.1103/PhysRevD.98.052009",

language = "American English",

volume = "98",

journal = "Physical Review D",

}

TY - JOUR

T1 - Photoproduction of K+ K− meson pairs on the proton.

AU - Lombardo, S.

AU - Battaglieri, M.

AU - Celentano, A.

AU - D’Angelo, A.

AU - De Vita, R.

AU - Filippi, A.

AU - Glazier, D. I.

AU - Biselli, Angela

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The exclusive reaction γp→pK+K− was studied in the photon energy range 3.0–3.8  GeV and momentum transfer range 0.6<−t<1.3  GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was approximately 20  pb−1. The reaction was isolated by detecting the K+ and the proton in CLAS, and reconstructing the K− via the missing-mass technique. Moments of the dikaon decay angular distributions were extracted from the experimental data. Besides the dominant contribution of the ϕ meson in the P wave, evidence for S−P interference was found. The differential production cross sections dσ/dt for individual waves in the mass range of the ϕ resonance were extracted and compared to predictions of a Regge-inspired model. This is the first time the t-dependent cross section of the S-wave contribution to the elastic K+K− photoproduction has been measured.

AB - The exclusive reaction γp→pK+K− was studied in the photon energy range 3.0–3.8  GeV and momentum transfer range 0.6<−t<1.3  GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was approximately 20  pb−1. The reaction was isolated by detecting the K+ and the proton in CLAS, and reconstructing the K− via the missing-mass technique. Moments of the dikaon decay angular distributions were extracted from the experimental data. Besides the dominant contribution of the ϕ meson in the P wave, evidence for S−P interference was found. The differential production cross sections dσ/dt for individual waves in the mass range of the ϕ resonance were extracted and compared to predictions of a Regge-inspired model. This is the first time the t-dependent cross section of the S-wave contribution to the elastic K+K− photoproduction has been measured.

UR - https://digitalcommons.fairfield.edu/physics-facultypubs/144

UR - https://doi.org/10.1103/PhysRevD.98.052009

U2 - 10.1103/PhysRevD.98.052009

DO - 10.1103/PhysRevD.98.052009

M3 - Article

VL - 98

JO - Physical Review D

JF - Physical Review D

ER -

Photoproduction of K+ K− meson pairs on the proton.

Abstract

Disciplines

Access to Document

Other files and links

Cite this