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Larissa
Cousin joined the Greek side Larissa on loan for the second half of the 2009–10 season. He was the second player from Gabon to play for Larissa after Henry Antchouet. The transfer was made permanent on 18 August 2010. Despite a good performance the following season, Larissa were relegated from the top tier, and he left the club.

Sapins
On 13 October 2011, Cousin returned home to Gabon to play for local team Sapins FC in an attempt to boost his chances of playing at the 2012 Africa Cup of Nations. The deal with Sapins allowed the striker to leave without any conditions if he received an offer from a club in Europe. Cousin was released by Sapins on 31 January 2012. Cousin agreed personal terms to rejoin Rangers until the end of the season, but Rangers entered administration and had a transfer embargo applied by the Scottish Premier League. When Rangers attempted to register Cousin with the league, their application was rejected.

International career

Cousin made his debut for Gabon on 23 January 2000 in a 3–1 defeat to South Africa. He participated in all three of Gabon's matches at the 2000 Africa Cup of Nations. On 2 September 2006, he was made captain of the national team and led them to a 4–0 win over Madagascar. He scored the only goal in a 1–0 win at the 2010 Africa Cup of Nations over Cameroon.

Coaching career
On 4 September 2014, Cousin was named general manager of the Gabon national team.

In September 2018, he became manager of the Gabon national team. He left in March 2019.

On 20 May 2019, Cousin was appointed manager of French club ES Fos-sur-Mer. He was sacked on 30 September 2019.

Career statistics

International goals
Scores and results list Gabon's goal tally first, score column indicates score after each Cousin goal.

Honours
Lens
UEFA Intertoto Cup: 2005

References

External links


Daniel Cousin Interview

1977 births
Living people
Sportspeople from Libreville
Gabonese footballers
Gabon international footballers
2000 African Cup of Nations players
2010 Africa Cup of Nations players
2012 Africa Cup of Nations players
Association football forwards
FC Martigues players
Chamois Niortais F.C. players
Le Mans FC players
RC Lens players
Gabonese emigrants to France
Rangers F.C. players
Hull City A.F.C. players
Athlitiki Enosi Larissa F.C. players
Sapins FC players
Ligue 1 players
Ligue 2 players
Scottish Premier League players
Premier League players
Super League Greece players
Gabonese football managers
Gabon national football team managers
Gabonese expatriate footballers
Expatriate footballers in Scotland
Gabonese expatriate sportspeople in France
Expatriate footballers in France
Gabonese expatriate sportspeople in Greece
Expatriate footballers in Greece
Gabonese expatriate sportspeople in England
Expatriate footballers in England
Geoffrey Foucar Chew (; June 5, 1924 – April 12, 2019) was an American theoretical physicist. He is known for his bootstrap theory of strong interactions.

Life
Chew worked as a professor of physics at the UC Berkeley since 1957 and was an emeritus since 1991. Chew held a PhD in theoretical particle physics (1944–1946) from the University of Chicago. Between 1950 and 1956, he was a physics faculty member at the University of Illinois. In addition, Chew was a member of the National Academy of Sciences as well as the American Academy of Arts and Sciences. He was also a founding member of the International Center for Transdisciplinary Research (CIRET).

Chew was a student of Enrico Fermi. His students include David Gross, one of the winners of the 2004 Nobel Prize in Physics, and John H. Schwarz, one of the pioneers of string theory.

Work
Chew was known as a leader of the S-matrix approach to the strong interaction and the associated bootstrap principle, a theory whose popularity peaked in the 1960s when he led an influential theory group at the University of California, Berkeley. S-matrix theorists sought to understand the strong interaction by using the analytic properties of the scattering matrix to calculate the interactions of bound-states without assuming that there is a point-particle field theory underneath. The S-matrix approach did not provide a local space-time description. Although it was not immediately appreciated by the practitioners, it was a natural framework in which to produce a quantum theory of gravity.

Chew's central contribution to the program came in 1961: along with collaborator Steven Frautschi, they noted that the mesons fall into families (straight-line Regge trajectories) where the square of the mass of a meson is linearly proportional to the spin (in their scheme, spin is plotted against mass squared on a so-called Chew–Frautschi plot), with the same constant of proportionality for each of the families. Since bound states in quantum mechanics naturally fall into families of this sort, their conclusion, quickly accepted, was that none of the strongly interacting particles were elementary. The conservative point of view was that the bound states were made up of elementary particles, but Chew's more far-reaching vision was that there would be a new type of theory which describes the interactions of bound-states which have no point-like constituents at all. This approach was sometimes called nuclear democracy, since it avoided singling out certain particles as elementary.

Legacy
Although the S-matrix approach to the strong interactions was largely abandoned by the particle physics community in the 1970s in favor of quantum chromodynamics, a consistent theory for the scattering of bound-states on straight-line trajectories was eventually constructed and is nowadays known as string theory. Within string theory, Edward Witten reinterpreted S-matrix theory as a flat-space statement of the holographic principle.

Professor Chew participated in religion and science discussions. He stated that an "appeal to God may be needed to answer the 'origin' question, 'Why should a quantum universe evolving toward a semiclassical limit be consistent?'"

Chew investigated into models in which the concept of happenings or (pre-)events play a fundamental role, not only particles. He saw similarities among his approach and the notion of occasion of Alfred North Whitehead.

Awards
Chew received the Hughes Prize of the American Physics Society for his bootstrap theory of strong interactions in 1962. He also won the Lawrence Prize in 1969 and Majorana Prize in 2008.

References

External links
2016 Video Interview with Geoffrey Chew by the Atomic Heritage Foundation Voices of the Manhattan Project

1924 births
Fellows of the American Academy of Arts and Sciences
Members of the United States National Academy of Sciences
2019 deaths
21st-century American physicists
University of California, Berkeley College of Letters and Science faculty

Larissa

Cousin joined the Greek side Larissa on loan for the second half of the 2009–10 season. He was the second player from Gabon to play for Larissa after Henry Antchouet. The transfer was made permanent on 18 August 2010. Despite a good performance the following season, Larissa were relegated from the top tier, and he left the club.

Sapins

On 13 October 2011, Cousin returned home to Gabon to play for local team Sapins FC in an attempt to boost his chances of playing at the 2012 Africa Cup of Nations. The deal with Sapins allowed the striker to leave without any conditions if he received an offer from a club in Europe. Cousin was released by Sapins on 31 January 2012. Cousin agreed personal terms to rejoin Rangers until the end of the season, but Rangers entered administration and had a transfer embargo applied by the Scottish Premier League. When Rangers attempted to register Cousin with the league, their application was rejected.

International career

Cousin made his debut for Gabon on 23 January 2000 in a 3–1 defeat to South Africa. He participated in all three of Gabon's matches at the 2000 Africa Cup of Nations. On 2 September 2006, he was made captain of the national team and led them to a 4–0 win over Madagascar. He scored the only goal in a 1–0 win at the 2010 Africa Cup of Nations over Cameroon.

Coaching career

On 4 September 2014, Cousin was named general manager of the Gabon national team.

In September 2018, he became manager of the Gabon national team. He left in March 2019.

On 20 May 2019, Cousin was appointed manager of French club ES Fos-sur-Mer. He was sacked on 30 September 2019.

Career statistics

International goals

Scores and results list Gabon's goal tally first, score column indicates score after each Cousin goal.

Honours

Lens

UEFA Intertoto Cup: 2005

References

External links

Daniel Cousin Interview

1977 births

Living people

Sportspeople from Libreville

Gabonese footballers

Gabon international footballers

2000 African Cup of Nations players

2010 Africa Cup of Nations players

2012 Africa Cup of Nations players

Association football forwards

FC Martigues players

Chamois Niortais F.C. players

Le Mans FC players

RC Lens players

Gabonese emigrants to France

Rangers F.C. players

Hull City A.F.C. players

Athlitiki Enosi Larissa F.C. players

Sapins FC players

Ligue 1 players

Ligue 2 players

Scottish Premier League players

Premier League players

Super League Greece players

Gabonese football managers

Gabon national football team managers

Gabonese expatriate footballers

Expatriate footballers in Scotland

Gabonese expatriate sportspeople in France

Expatriate footballers in France

Gabonese expatriate sportspeople in Greece

Expatriate footballers in Greece

Gabonese expatriate sportspeople in England

Expatriate footballers in England

Geoffrey Foucar Chew (; June 5, 1924 – April 12, 2019) was an American theoretical physicist. He is known for his bootstrap theory of strong interactions.

Life

Chew worked as a professor of physics at the UC Berkeley since 1957 and was an emeritus since 1991. Chew held a PhD in theoretical particle physics (1944–1946) from the University of Chicago. Between 1950 and 1956, he was a physics faculty member at the University of Illinois. In addition, Chew was a member of the National Academy of Sciences as well as the American Academy of Arts and Sciences. He was also a founding member of the International Center for Transdisciplinary Research (CIRET).

Chew was a student of Enrico Fermi. His students include David Gross, one of the winners of the 2004 Nobel Prize in Physics, and John H. Schwarz, one of the pioneers of string theory.

Work

Chew was known as a leader of the S-matrix approach to the strong interaction and the associated bootstrap principle, a theory whose popularity peaked in the 1960s when he led an influential theory group at the University of California, Berkeley. S-matrix theorists sought to understand the strong interaction by using the analytic properties of the scattering matrix to calculate the interactions of bound-states without assuming that there is a point-particle field theory underneath. The S-matrix approach did not provide a local space-time description. Although it was not immediately appreciated by the practitioners, it was a natural framework in which to produce a quantum theory of gravity.

Chew's central contribution to the program came in 1961: along with collaborator Steven Frautschi, they noted that the mesons fall into families (straight-line Regge trajectories) where the square of the mass of a meson is linearly proportional to the spin (in their scheme, spin is plotted against mass squared on a so-called Chew–Frautschi plot), with the same constant of proportionality for each of the families. Since bound states in quantum mechanics naturally fall into families of this sort, their conclusion, quickly accepted, was that none of the strongly interacting particles were elementary. The conservative point of view was that the bound states were made up of elementary particles, but Chew's more far-reaching vision was that there would be a new type of theory which describes the interactions of bound-states which have no point-like constituents at all. This approach was sometimes called nuclear democracy, since it avoided singling out certain particles as elementary.

Legacy

Although the S-matrix approach to the strong interactions was largely abandoned by the particle physics community in the 1970s in favor of quantum chromodynamics, a consistent theory for the scattering of bound-states on straight-line trajectories was eventually constructed and is nowadays known as string theory. Within string theory, Edward Witten reinterpreted S-matrix theory as a flat-space statement of the holographic principle.

Professor Chew participated in religion and science discussions. He stated that an "appeal to God may be needed to answer the 'origin' question, 'Why should a quantum universe evolving toward a semiclassical limit be consistent?'"

Chew investigated into models in which the concept of happenings or (pre-)events play a fundamental role, not only particles. He saw similarities among his approach and the notion of occasion of Alfred North Whitehead.

Awards

Chew received the Hughes Prize of the American Physics Society for his bootstrap theory of strong interactions in 1962. He also won the Lawrence Prize in 1969 and Majorana Prize in 2008.

References

External links

2016 Video Interview with Geoffrey Chew by the Atomic Heritage Foundation Voices of the Manhattan Project

1924 births

Fellows of the American Academy of Arts and Sciences

Members of the United States National Academy of Sciences

2019 deaths

21st-century American physicists

University of California, Berkeley College of Letters and Science faculty